<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:01a06d2f-3f9e-76b2-b838-6ffdfe37ac3b,g:ea9901b7-4e74-4f89-81e6-43482284a2a9-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://cassinfo.com/role/CoverPage" xlink:type="simple" xlink:href="cass-20260930.xsd#CoverPage"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/CoverPage" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_01a06d2f-4115-74a7-b7d4-692c7c0615b0" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_DocumentType_01a06d2f-4115-74a7-b7d4-692c7c0615b0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentQuarterlyReport_01a06d2f-4115-7011-b558-887427f27374" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentQuarterlyReport"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_DocumentQuarterlyReport_01a06d2f-4115-7011-b558-887427f27374" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_01a06d2f-4115-7a87-983c-146be73186d3" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_DocumentPeriodEndDate_01a06d2f-4115-7a87-983c-146be73186d3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport_01a06d2f-4115-7742-94ef-bd64ce7350d3" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentTransitionReport"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_DocumentTransitionReport_01a06d2f-4115-7742-94ef-bd64ce7350d3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_01a06d2f-4115-7161-9ed0-ad09895d8e12" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_EntityFileNumber_01a06d2f-4115-7161-9ed0-ad09895d8e12" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_01a06d2f-4115-7587-8977-b92388c73443" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_EntityRegistrantName_01a06d2f-4115-7587-8977-b92388c73443" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_01a06d2f-4115-7f6f-971f-de3e3a022b7c" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_EntityIncorporationStateCountryCode_01a06d2f-4115-7f6f-971f-de3e3a022b7c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_01a06d2f-4115-7196-ae16-bda88fe0b157" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_EntityTaxIdentificationNumber_01a06d2f-4115-7196-ae16-bda88fe0b157" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_01a06d2f-4115-7045-937f-efae5fbc9f61" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_EntityAddressAddressLine1_01a06d2f-4115-7045-937f-efae5fbc9f61" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2_01a06d2f-4115-71b4-bb8e-a589238d1129" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine2"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_EntityAddressAddressLine2_01a06d2f-4115-71b4-bb8e-a589238d1129" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_01a06d2f-4115-78c4-a812-b8f6d08231fe" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_EntityAddressCityOrTown_01a06d2f-4115-78c4-a812-b8f6d08231fe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_01a06d2f-4115-730f-aa55-5aaa1ff1d161" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_EntityAddressStateOrProvince_01a06d2f-4115-730f-aa55-5aaa1ff1d161" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_01a06d2f-4115-73f2-a546-00c520a1fa53" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_EntityAddressPostalZipCode_01a06d2f-4115-73f2-a546-00c520a1fa53" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_01a06d2f-4115-7635-b13e-433b54491382" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_CityAreaCode_01a06d2f-4115-7635-b13e-433b54491382" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_01a06d2f-4115-774b-b1a0-1fa36e680415" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_LocalPhoneNumber_01a06d2f-4115-774b-b1a0-1fa36e680415" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_01a06d2f-4115-7545-aacb-2b50459add4e" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_Security12bTitle_01a06d2f-4115-7545-aacb-2b50459add4e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_01a06d2f-4115-7e14-97cf-9ee3531343ca" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_TradingSymbol_01a06d2f-4115-7e14-97cf-9ee3531343ca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_01a06d2f-4115-75ad-ad39-ca9c621595d7" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_SecurityExchangeName_01a06d2f-4115-75ad-ad39-ca9c621595d7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus_01a06d2f-4115-722e-88e6-e7004bdfc6ef" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCurrentReportingStatus"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_EntityCurrentReportingStatus_01a06d2f-4115-722e-88e6-e7004bdfc6ef" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent_01a06d2f-4115-7c85-94b7-e6e33285eef7" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityInteractiveDataCurrent"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_EntityInteractiveDataCurrent_01a06d2f-4115-7c85-94b7-e6e33285eef7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory_01a06d2f-4115-7360-97cc-d0c09fef1db2" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityFilerCategory"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_EntityFilerCategory_01a06d2f-4115-7360-97cc-d0c09fef1db2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitySmallBusiness_01a06d2f-4115-745f-a98f-e94fd7c1a8c6" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntitySmallBusiness"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_EntitySmallBusiness_01a06d2f-4115-745f-a98f-e94fd7c1a8c6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_01a06d2f-4115-7ef1-a326-fe6b617cb395" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_EntityEmergingGrowthCompany_01a06d2f-4115-7ef1-a326-fe6b617cb395" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany_01a06d2f-4115-76aa-91c4-81dcc615897d" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityShellCompany"/>
    <link:presentationArc order="24" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_EntityShellCompany_01a06d2f-4115-76aa-91c4-81dcc615897d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_01a06d2f-4115-722d-a685-d6b164d0eec8" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCommonStockSharesOutstanding"/>
    <link:presentationArc order="25" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_01a06d2f-4115-722d-a685-d6b164d0eec8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_01a06d2f-4115-7463-a708-26244caa0f81" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="26" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_EntityCentralIndexKey_01a06d2f-4115-7463-a708-26244caa0f81" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_01a06d2f-4115-7981-98bd-4960bfb4f5cd" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="27" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_AmendmentFlag_01a06d2f-4115-7981-98bd-4960bfb4f5cd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate_01a06d2f-4115-7188-9456-608669d4e31e" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:presentationArc order="28" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_CurrentFiscalYearEndDate_01a06d2f-4115-7188-9456-608669d4e31e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus_01a06d2f-4115-7c20-8f87-3741ea35b873" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentFiscalYearFocus"/>
    <link:presentationArc order="29" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_DocumentFiscalYearFocus_01a06d2f-4115-7c20-8f87-3741ea35b873" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus_01a06d2f-4115-766d-8307-47da769bb6da" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentFiscalPeriodFocus"/>
    <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a06d2f-4115-7237-9cd1-a877a9f2c0cb" xlink:to="loc_dei_DocumentFiscalPeriodFocus_01a06d2f-4115-766d-8307-47da769bb6da" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/CONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="cass-20260930.xsd#CONSOLIDATEDBALANCESHEETS"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/CONSOLIDATEDBALANCESHEETS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_01a06d2f-4115-701f-9845-20f3e24e1c9f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfFinancialPositionAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_01a06d2f-4115-724c-89ac-d1c65be61707" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_01a06d2f-4115-701f-9845-20f3e24e1c9f" xlink:to="loc_us-gaap_AssetsAbstract_01a06d2f-4115-724c-89ac-d1c65be61707" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndDueFromBanks_01a06d2f-4115-7d21-a65e-8a326a4f2ae3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndDueFromBanks"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_01a06d2f-4115-724c-89ac-d1c65be61707" xlink:to="loc_us-gaap_CashAndDueFromBanks_01a06d2f-4115-7d21-a65e-8a326a4f2ae3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestments_01a06d2f-4115-7d08-a148-57c81d0865dd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermInvestments"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_01a06d2f-4115-724c-89ac-d1c65be61707" xlink:to="loc_us-gaap_ShortTermInvestments_01a06d2f-4115-7d08-a148-57c81d0865dd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsAndShortTermInvestments_01a06d2f-4115-7a6c-9d40-9fd2e149d21e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsAndShortTermInvestments"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_01a06d2f-4115-724c-89ac-d1c65be61707" xlink:to="loc_us-gaap_CashCashEquivalentsAndShortTermInvestments_01a06d2f-4115-7a6c-9d40-9fd2e149d21e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_01a06d2f-4115-7a17-b2b8-d61356e62989" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_01a06d2f-4115-724c-89ac-d1c65be61707" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_01a06d2f-4115-7a17-b2b8-d61356e62989" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss_01a06d2f-4115-79a9-9cfa-76cfeda6f5ef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_01a06d2f-4115-724c-89ac-d1c65be61707" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss_01a06d2f-4115-79a9-9cfa-76cfeda6f5ef" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest_01a06d2f-4115-7895-9f12-f7671572d240" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_01a06d2f-4115-724c-89ac-d1c65be61707" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest_01a06d2f-4115-7895-9f12-f7671572d240" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_01a06d2f-4115-7ce0-9117-ee23b2636f1b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_01a06d2f-4115-724c-89ac-d1c65be61707" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_01a06d2f-4115-7ce0-9117-ee23b2636f1b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_PaymentsInAdvanceOfFunding_01a06d2f-4115-76b6-95fa-83f73654fcb5" xlink:href="cass-20260930.xsd#cass_PaymentsInAdvanceOfFunding"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_01a06d2f-4115-724c-89ac-d1c65be61707" xlink:to="loc_cass_PaymentsInAdvanceOfFunding_01a06d2f-4115-76b6-95fa-83f73654fcb5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_01a06d2f-4115-76c7-9d26-f8ee47a6261e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_01a06d2f-4115-724c-89ac-d1c65be61707" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_01a06d2f-4115-76c7-9d26-f8ee47a6261e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BankOwnedLifeInsurance_01a06d2f-4115-7f4e-9297-013ec9d7d6c7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BankOwnedLifeInsurance"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_01a06d2f-4115-724c-89ac-d1c65be61707" xlink:to="loc_us-gaap_BankOwnedLifeInsurance_01a06d2f-4115-7f4e-9297-013ec9d7d6c7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_01a06d2f-4115-7d93-aec6-083a3dde136c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_01a06d2f-4115-724c-89ac-d1c65be61707" xlink:to="loc_us-gaap_Goodwill_01a06d2f-4115-7d93-aec6-083a3dde136c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_01a06d2f-4115-7f9a-a829-f544bd1abeb1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_01a06d2f-4115-724c-89ac-d1c65be61707" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_01a06d2f-4115-7f9a-a829-f544bd1abeb1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesFromCustomers_01a06d2f-4115-7fa7-9231-f5d314f9ab15" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReceivablesFromCustomers"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_01a06d2f-4115-724c-89ac-d1c65be61707" xlink:to="loc_us-gaap_ReceivablesFromCustomers_01a06d2f-4115-7fa7-9231-f5d314f9ab15" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssets_01a06d2f-4115-7509-8727-3c89b2a546a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssets"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_01a06d2f-4115-724c-89ac-d1c65be61707" xlink:to="loc_us-gaap_OtherAssets_01a06d2f-4115-7509-8727-3c89b2a546a5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_01a06d2f-4115-7906-9a30-84dfefd33240" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_01a06d2f-4115-724c-89ac-d1c65be61707" xlink:to="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_01a06d2f-4115-7906-9a30-84dfefd33240" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_01a06d2f-4115-7b3b-ae5f-2e87cc557fdb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_01a06d2f-4115-724c-89ac-d1c65be61707" xlink:to="loc_us-gaap_Assets_01a06d2f-4115-7b3b-ae5f-2e87cc557fdb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_01a06d2f-4115-7f2e-9993-d7c6551ef9ff" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_01a06d2f-4115-701f-9845-20f3e24e1c9f" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_01a06d2f-4115-7f2e-9993-d7c6551ef9ff" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAbstract_01a06d2f-4115-7379-ac4e-a3edbfe29ce7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_01a06d2f-4115-7f2e-9993-d7c6551ef9ff" xlink:to="loc_us-gaap_LiabilitiesAbstract_01a06d2f-4115-7379-ac4e-a3edbfe29ce7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepositsByTypeAbstract_01a06d2f-4115-7352-90fc-8ca1a6baa7db" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepositsByTypeAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAbstract_01a06d2f-4115-7379-ac4e-a3edbfe29ce7" xlink:to="loc_us-gaap_DepositsByTypeAbstract_01a06d2f-4115-7352-90fc-8ca1a6baa7db" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoninterestBearingDepositLiabilities_01a06d2f-4115-79e0-b40c-a818bdc057dc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NoninterestBearingDepositLiabilities"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DepositsByTypeAbstract_01a06d2f-4115-7352-90fc-8ca1a6baa7db" xlink:to="loc_us-gaap_NoninterestBearingDepositLiabilities_01a06d2f-4115-79e0-b40c-a818bdc057dc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestBearingDepositLiabilities_01a06d2f-4115-746b-b066-d9108a18a024" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestBearingDepositLiabilities"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DepositsByTypeAbstract_01a06d2f-4115-7352-90fc-8ca1a6baa7db" xlink:to="loc_us-gaap_InterestBearingDepositLiabilities_01a06d2f-4115-746b-b066-d9108a18a024" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Deposits_01a06d2f-4115-79f6-ad8a-40da5d2a456d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Deposits"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DepositsByTypeAbstract_01a06d2f-4115-7352-90fc-8ca1a6baa7db" xlink:to="loc_us-gaap_Deposits_01a06d2f-4115-79f6-ad8a-40da5d2a456d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_AccountsAndDraftsPayable_01a06d2f-4115-7c07-86af-53072b39433b" xlink:href="cass-20260930.xsd#cass_AccountsAndDraftsPayable"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAbstract_01a06d2f-4115-7379-ac4e-a3edbfe29ce7" xlink:to="loc_cass_AccountsAndDraftsPayable_01a06d2f-4115-7c07-86af-53072b39433b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherShortTermBorrowings_01a06d2f-4115-72ee-81f0-5a60b878187f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherShortTermBorrowings"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAbstract_01a06d2f-4115-7379-ac4e-a3edbfe29ce7" xlink:to="loc_us-gaap_OtherShortTermBorrowings_01a06d2f-4115-72ee-81f0-5a60b878187f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilities_01a06d2f-4115-7a4b-8ab7-4a613a9d1889" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilities"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAbstract_01a06d2f-4115-7379-ac4e-a3edbfe29ce7" xlink:to="loc_us-gaap_OtherLiabilities_01a06d2f-4115-7a4b-8ab7-4a613a9d1889" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_01a06d2f-4115-7e54-a9df-917d84e499d8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAbstract_01a06d2f-4115-7379-ac4e-a3edbfe29ce7" xlink:to="loc_us-gaap_Liabilities_01a06d2f-4115-7e54-a9df-917d84e499d8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityAbstract_01a06d2f-4115-7c7e-bbdb-f56a043ab80e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_01a06d2f-4115-7f2e-9993-d7c6551ef9ff" xlink:to="loc_us-gaap_StockholdersEquityAbstract_01a06d2f-4115-7c7e-bbdb-f56a043ab80e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_01a06d2f-4115-7ff8-9360-c3b76566becb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_01a06d2f-4115-7c7e-bbdb-f56a043ab80e" xlink:to="loc_us-gaap_PreferredStockValue_01a06d2f-4115-7ff8-9360-c3b76566becb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValueOutstanding_01a06d2f-4115-7f4b-83ca-c1e8cc406419" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockValueOutstanding"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_01a06d2f-4115-7c7e-bbdb-f56a043ab80e" xlink:to="loc_us-gaap_CommonStockValueOutstanding_01a06d2f-4115-7f4b-83ca-c1e8cc406419" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_01a06d2f-4115-7ba3-aff6-9f82a5b75c13" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_01a06d2f-4115-7c7e-bbdb-f56a043ab80e" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_01a06d2f-4115-7ba3-aff6-9f82a5b75c13" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_01a06d2f-4115-774f-8a68-4ae3137a8768" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_01a06d2f-4115-7c7e-bbdb-f56a043ab80e" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_01a06d2f-4115-774f-8a68-4ae3137a8768" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonValue_01a06d2f-4115-7fb7-985f-68555b0ce198" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockCommonValue"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_01a06d2f-4115-7c7e-bbdb-f56a043ab80e" xlink:to="loc_us-gaap_TreasuryStockCommonValue_01a06d2f-4115-7fb7-985f-68555b0ce198" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_01a06d2f-4115-7939-92b5-2de7149872ba" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_01a06d2f-4115-7c7e-bbdb-f56a043ab80e" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_01a06d2f-4115-7939-92b5-2de7149872ba" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_01a06d2f-4115-79fd-9321-ecc56856f623" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_01a06d2f-4115-7c7e-bbdb-f56a043ab80e" xlink:to="loc_us-gaap_StockholdersEquity_01a06d2f-4115-79fd-9321-ecc56856f623" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_01a06d2f-4115-7d5e-b336-efb3c8bd730c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_01a06d2f-4115-7f2e-9993-d7c6551ef9ff" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_01a06d2f-4115-7d5e-b336-efb3c8bd730c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_01a06d2f-4115-7096-a5c8-7c7d97d72dcf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_01a06d2f-4115-701f-9845-20f3e24e1c9f" xlink:to="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_01a06d2f-4115-7096-a5c8-7c7d97d72dcf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/CONSOLIDATEDBALANCESHEETSParenthetical" xlink:type="simple" xlink:href="cass-20260930.xsd#CONSOLIDATEDBALANCESHEETSParenthetical"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/CONSOLIDATEDBALANCESHEETSParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_01a06d2f-4115-78f3-b67a-87a1562ae200" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfFinancialPositionAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_01a06d2f-4115-7898-9694-65d30fb290cb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_01a06d2f-4115-78f3-b67a-87a1562ae200" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_01a06d2f-4115-7898-9694-65d30fb290cb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_01a06d2f-4115-723d-843f-e3559323daa0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_01a06d2f-4115-78f3-b67a-87a1562ae200" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_01a06d2f-4115-723d-843f-e3559323daa0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesIssued_01a06d2f-4115-78dd-983c-48e4992b1465" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockSharesIssued"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_01a06d2f-4115-78f3-b67a-87a1562ae200" xlink:to="loc_us-gaap_PreferredStockSharesIssued_01a06d2f-4115-78dd-983c-48e4992b1465" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_01a06d2f-4115-7b39-b015-1a3a05bdc9a7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_01a06d2f-4115-78f3-b67a-87a1562ae200" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_01a06d2f-4115-7b39-b015-1a3a05bdc9a7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_01a06d2f-4115-7c31-82e7-7a8a59dde99c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_01a06d2f-4115-78f3-b67a-87a1562ae200" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_01a06d2f-4115-7c31-82e7-7a8a59dde99c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_01a06d2f-4115-7dd6-b5cb-27f4aca8ecf4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_01a06d2f-4115-78f3-b67a-87a1562ae200" xlink:to="loc_us-gaap_CommonStockSharesIssued_01a06d2f-4115-7dd6-b5cb-27f4aca8ecf4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_01a06d2f-4115-7fd2-9548-b29b19cc1660" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_01a06d2f-4115-78f3-b67a-87a1562ae200" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_01a06d2f-4115-7fd2-9548-b29b19cc1660" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonShares_01a06d2f-4115-7b4c-a87c-5c89e2c75bec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockCommonShares"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_01a06d2f-4115-78f3-b67a-87a1562ae200" xlink:to="loc_us-gaap_TreasuryStockCommonShares_01a06d2f-4115-7b4c-a87c-5c89e2c75bec" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_01a06d2f-4115-7c5a-82e8-503bbdde6579" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_01a06d2f-4115-78f3-b67a-87a1562ae200" xlink:to="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_01a06d2f-4115-7c5a-82e8-503bbdde6579" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_01a06d2f-4115-7cb5-8c44-7f0530c796a6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_01a06d2f-4115-78f3-b67a-87a1562ae200" xlink:to="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_01a06d2f-4115-7cb5-8c44-7f0530c796a6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/CONSOLIDATEDSTATEMENTSOFINCOME" xlink:type="simple" xlink:href="cass-20260930.xsd#CONSOLIDATEDSTATEMENTSOFINCOME"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/CONSOLIDATEDSTATEMENTSOFINCOME" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementAbstract_01a06d2f-4115-7437-9a0c-39d32200a79b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeStatementAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_01a06d2f-4115-78e0-8a90-4602071819aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_01a06d2f-4115-7437-9a0c-39d32200a79b" xlink:to="loc_us-gaap_StatementTable_01a06d2f-4115-78e0-8a90-4602071819aa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_01a06d2f-4115-7356-a606-4d04f290e40f" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductOrServiceAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_01a06d2f-4115-78e0-8a90-4602071819aa" xlink:to="loc_srt_ProductOrServiceAxis_01a06d2f-4115-7356-a606-4d04f290e40f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_01a06d2f-4115-735b-99e6-530da2740ec6" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductOrServiceAxis_01a06d2f-4115-7356-a606-4d04f290e40f" xlink:to="loc_srt_ProductsAndServicesDomain_01a06d2f-4115-735b-99e6-530da2740ec6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_ProcessingFeesMember_01a06d2f-4115-7f23-b3ae-cbde65c3f318" xlink:href="cass-20260930.xsd#cass_ProcessingFeesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductsAndServicesDomain_01a06d2f-4115-735b-99e6-530da2740ec6" xlink:to="loc_cass_ProcessingFeesMember_01a06d2f-4115-7f23-b3ae-cbde65c3f318" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_FinancialFeesMember_01a06d2f-4115-7877-b908-2a36e1620979" xlink:href="cass-20260930.xsd#cass_FinancialFeesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductsAndServicesDomain_01a06d2f-4115-735b-99e6-530da2740ec6" xlink:to="loc_cass_FinancialFeesMember_01a06d2f-4115-7877-b908-2a36e1620979" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_01a06d2f-4115-78e0-8a90-4602071819aa" xlink:to="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuesAbstract_01a06d2f-4115-7c78-a645-51a03d5099a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenuesAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_us-gaap_RevenuesAbstract_01a06d2f-4115-7c78-a645-51a03d5099a5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_01a06d2f-4115-7705-85fb-7fef456d2026" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenuesAbstract_01a06d2f-4115-7c78-a645-51a03d5099a5" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_01a06d2f-4115-7705-85fb-7fef456d2026" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfInvestments_01a06d2f-4115-77c3-8630-303c71b15b0a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnSaleOfInvestments"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenuesAbstract_01a06d2f-4115-7c78-a645-51a03d5099a5" xlink:to="loc_us-gaap_GainLossOnSaleOfInvestments_01a06d2f-4115-77c3-8630-303c71b15b0a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueNotFromContractWithCustomerOther_01a06d2f-4115-7891-84e2-fa0e0fc54700" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueNotFromContractWithCustomerOther"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenuesAbstract_01a06d2f-4115-7c78-a645-51a03d5099a5" xlink:to="loc_us-gaap_RevenueNotFromContractWithCustomerOther_01a06d2f-4115-7891-84e2-fa0e0fc54700" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoninterestIncome_01a06d2f-4115-7b84-8468-5494e191997a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NoninterestIncome"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenuesAbstract_01a06d2f-4115-7c78-a645-51a03d5099a5" xlink:to="loc_us-gaap_NoninterestIncome_01a06d2f-4115-7b84-8468-5494e191997a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestAndDividendIncomeOperatingAbstract_01a06d2f-4115-7b24-a6fe-f9b6521065c3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestAndDividendIncomeOperatingAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_us-gaap_InterestAndDividendIncomeOperatingAbstract_01a06d2f-4115-7b24-a6fe-f9b6521065c3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestAndFeeIncomeLoansAndLeases_01a06d2f-4115-754a-8084-3454b39a48be" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestAndFeeIncomeLoansAndLeases"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestAndDividendIncomeOperatingAbstract_01a06d2f-4115-7b24-a6fe-f9b6521065c3" xlink:to="loc_us-gaap_InterestAndFeeIncomeLoansAndLeases_01a06d2f-4115-754a-8084-3454b39a48be" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestAndDividendIncomeSecuritiesByTaxableStatusAbstract_01a06d2f-4115-7269-9099-cbfd261bb46a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestAndDividendIncomeSecuritiesByTaxableStatusAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestAndDividendIncomeOperatingAbstract_01a06d2f-4115-7b24-a6fe-f9b6521065c3" xlink:to="loc_us-gaap_InterestAndDividendIncomeSecuritiesByTaxableStatusAbstract_01a06d2f-4115-7269-9099-cbfd261bb46a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeSecuritiesTaxable_01a06d2f-4115-7c0d-a020-54e30d8f21ec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeSecuritiesTaxable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestAndDividendIncomeSecuritiesByTaxableStatusAbstract_01a06d2f-4115-7269-9099-cbfd261bb46a" xlink:to="loc_us-gaap_InterestIncomeSecuritiesTaxable_01a06d2f-4115-7c0d-a020-54e30d8f21ec" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeSecuritiesTaxExempt_01a06d2f-4115-784d-ad24-204ebe1923bc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeSecuritiesTaxExempt"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestAndDividendIncomeSecuritiesByTaxableStatusAbstract_01a06d2f-4115-7269-9099-cbfd261bb46a" xlink:to="loc_us-gaap_InterestIncomeSecuritiesTaxExempt_01a06d2f-4115-784d-ad24-204ebe1923bc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_InterestOnFederalFundsSoldAndOtherShortTermInvestments_01a06d2f-4115-7097-9687-1ad117e01462" xlink:href="cass-20260930.xsd#cass_InterestOnFederalFundsSoldAndOtherShortTermInvestments"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestAndDividendIncomeOperatingAbstract_01a06d2f-4115-7b24-a6fe-f9b6521065c3" xlink:to="loc_cass_InterestOnFederalFundsSoldAndOtherShortTermInvestments_01a06d2f-4115-7097-9687-1ad117e01462" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestAndDividendIncomeOperating_01a06d2f-4115-7d75-bb58-7deffea99723" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestAndDividendIncomeOperating"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestAndDividendIncomeOperatingAbstract_01a06d2f-4115-7b24-a6fe-f9b6521065c3" xlink:to="loc_us-gaap_InterestAndDividendIncomeOperating_01a06d2f-4115-7d75-bb58-7deffea99723" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseAbstract_01a06d2f-4115-72a8-a66d-10c69f1d6a79" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseAbstract"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_us-gaap_InterestExpenseAbstract_01a06d2f-4115-72a8-a66d-10c69f1d6a79" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDeposits_01a06d2f-4115-70df-b354-685cb37e3adb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseDeposits"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestExpenseAbstract_01a06d2f-4115-72a8-a66d-10c69f1d6a79" xlink:to="loc_us-gaap_InterestExpenseDeposits_01a06d2f-4115-70df-b354-685cb37e3adb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseShortTermBorrowings_01a06d2f-4115-7e44-a7d2-6e0b6409ee7c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseShortTermBorrowings"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestExpenseAbstract_01a06d2f-4115-72a8-a66d-10c69f1d6a79" xlink:to="loc_us-gaap_InterestExpenseShortTermBorrowings_01a06d2f-4115-7e44-a7d2-6e0b6409ee7c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseOperating_01a06d2f-4115-75dc-8dfc-12719be6b59d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseOperating"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestExpenseAbstract_01a06d2f-4115-72a8-a66d-10c69f1d6a79" xlink:to="loc_us-gaap_InterestExpenseOperating_01a06d2f-4115-75dc-8dfc-12719be6b59d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_01a06d2f-4115-7e3e-ab53-09c9e1bae60f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_01a06d2f-4115-7e3e-ab53-09c9e1bae60f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForLoanLossesExpensed_01a06d2f-4115-7e78-99f1-c081ab651a3f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProvisionForLoanLossesExpensed"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_us-gaap_ProvisionForLoanLossesExpensed_01a06d2f-4115-7e78-99f1-c081ab651a3f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_01a06d2f-4115-75e1-82b8-f0f04c0d2df1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_01a06d2f-4115-75e1-82b8-f0f04c0d2df1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_01a06d2f-4115-7d13-9bcf-1daa961596db" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Revenues"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_us-gaap_Revenues_01a06d2f-4115-7d13-9bcf-1daa961596db" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoninterestExpenseAbstract_01a06d2f-4115-7cac-ba98-2cc26d0c41e7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NoninterestExpenseAbstract"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_us-gaap_NoninterestExpenseAbstract_01a06d2f-4115-7cac-ba98-2cc26d0c41e7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LaborAndRelatedExpense_01a06d2f-4115-7176-828f-6ecdc96e19b0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LaborAndRelatedExpense"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NoninterestExpenseAbstract_01a06d2f-4115-7cac-ba98-2cc26d0c41e7" xlink:to="loc_us-gaap_LaborAndRelatedExpense_01a06d2f-4115-7176-828f-6ecdc96e19b0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OccupancyNet_01a06d2f-4115-7c0e-aa7c-7835b564f543" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OccupancyNet"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NoninterestExpenseAbstract_01a06d2f-4115-7cac-ba98-2cc26d0c41e7" xlink:to="loc_us-gaap_OccupancyNet_01a06d2f-4115-7c0e-aa7c-7835b564f543" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquipmentExpense_01a06d2f-4115-7713-97b3-1ccfa59ba085" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquipmentExpense"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NoninterestExpenseAbstract_01a06d2f-4115-7cac-ba98-2cc26d0c41e7" xlink:to="loc_us-gaap_EquipmentExpense_01a06d2f-4115-7713-97b3-1ccfa59ba085" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_01a06d2f-4115-71d9-b9ff-dd2353b2f0e6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NoninterestExpenseAbstract_01a06d2f-4115-7cac-ba98-2cc26d0c41e7" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_01a06d2f-4115-71d9-b9ff-dd2353b2f0e6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoninterestExpense_01a06d2f-4115-7424-b8ad-7a154e7c43a7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNoninterestExpense"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NoninterestExpenseAbstract_01a06d2f-4115-7cac-ba98-2cc26d0c41e7" xlink:to="loc_us-gaap_OtherNoninterestExpense_01a06d2f-4115-7424-b8ad-7a154e7c43a7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoninterestExpense_01a06d2f-4115-7891-8f0c-065bff897f95" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NoninterestExpense"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NoninterestExpenseAbstract_01a06d2f-4115-7cac-ba98-2cc26d0c41e7" xlink:to="loc_us-gaap_NoninterestExpense_01a06d2f-4115-7891-8f0c-065bff897f95" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_01a06d2f-4115-7d45-9026-5aa10ec7261a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_01a06d2f-4115-7d45-9026-5aa10ec7261a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_01a06d2f-4115-7a17-8983-e93f947a24c6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_01a06d2f-4115-7a17-8983-e93f947a24c6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_01a06d2f-4115-7986-b32e-f6d40579030a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperations"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperations_01a06d2f-4115-7986-b32e-f6d40579030a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_01a06d2f-4115-7394-a0bc-db6342d6f01b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_01a06d2f-4115-7394-a0bc-db6342d6f01b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_01a06d2f-4115-7625-8f1b-e3970a1c9f32" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_us-gaap_NetIncomeLoss_01a06d2f-4115-7625-8f1b-e3970a1c9f32" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_01a06d2f-4115-7c9a-a535-3e20094f8ad5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsPerBasicShare"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_01a06d2f-4115-7c9a-a535-3e20094f8ad5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_01a06d2f-4115-726c-96d1-31aee62cfc8b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_us-gaap_EarningsPerShareBasic_01a06d2f-4115-726c-96d1-31aee62cfc8b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_01a06d2f-4115-7761-afab-a650f21e5e38" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_01a06d2f-4115-7761-afab-a650f21e5e38" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_01a06d2f-4115-7f00-af6e-80e3ce5052b2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_01a06d2f-4115-7f00-af6e-80e3ce5052b2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_01a06d2f-4115-70b2-9b99-a760c0fafae3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_us-gaap_EarningsPerShareDiluted_01a06d2f-4115-70b2-9b99-a760c0fafae3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_01a06d2f-4115-7d97-9681-72f96a081385" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_01a06d2f-4115-7d97-9681-72f96a081385" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_SalariesAndCommissions_01a06d2f-4115-76af-8e65-e6e9a0fb53f4" xlink:href="cass-20260930.xsd#cass_SalariesAndCommissions"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_cass_SalariesAndCommissions_01a06d2f-4115-76af-8e65-e6e9a0fb53f4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_01a06d2f-4115-7adc-88c0-f84a2ac725ab" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensation"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_us-gaap_ShareBasedCompensation_01a06d2f-4115-7adc-88c0-f84a2ac725ab" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_ProfitSharingExpense_01a06d2f-4115-7167-8a49-5bcef02e0d33" xlink:href="cass-20260930.xsd#cass_ProfitSharingExpense"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_cass_ProfitSharingExpense_01a06d2f-4115-7167-8a49-5bcef02e0d33" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_OtherBenefits_01a06d2f-4115-7bcb-ac28-03a4bd691d30" xlink:href="cass-20260930.xsd#cass_OtherBenefits"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_cass_OtherBenefits_01a06d2f-4115-7bcb-ac28-03a4bd691d30" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_BadDebtExpense_01a06d2f-4115-772e-900a-abeb2c4b4263" xlink:href="cass-20260930.xsd#cass_BadDebtExpense"/>
    <link:presentationArc order="24" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-4115-77d6-bd0a-42dc8968e542" xlink:to="loc_cass_BadDebtExpense_01a06d2f-4115-772e-900a-abeb2c4b4263" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME" xlink:type="simple" xlink:href="cass-20260930.xsd#CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_01a06d2f-4115-7413-911d-8235c95b6045" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxAbstract_01a06d2f-4115-74db-9373-4bf5726c7fa9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_01a06d2f-4115-7413-911d-8235c95b6045" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxAbstract_01a06d2f-4115-74db-9373-4bf5726c7fa9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_01a06d2f-4115-799c-805c-0120c512eb03" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxAbstract_01a06d2f-4115-74db-9373-4bf5726c7fa9" xlink:to="loc_us-gaap_NetIncomeLoss_01a06d2f-4115-799c-805c-0120c512eb03" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_01a06d2f-4115-7d0c-a7ab-1a08128d048b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxAbstract_01a06d2f-4115-74db-9373-4bf5726c7fa9" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_01a06d2f-4115-7d0c-a7ab-1a08128d048b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax_01a06d2f-4115-7785-bcb2-c4e4e8b5916b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_01a06d2f-4115-7d0c-a7ab-1a08128d048b" xlink:to="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax_01a06d2f-4115-7785-bcb2-c4e4e8b5916b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax_01a06d2f-4115-7a78-9766-ad604039567a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_01a06d2f-4115-7d0c-a7ab-1a08128d048b" xlink:to="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax_01a06d2f-4115-7a78-9766-ad604039567a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax_01a06d2f-4115-75ef-a3dc-021b2484d0f8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_01a06d2f-4115-7d0c-a7ab-1a08128d048b" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax_01a06d2f-4115-75ef-a3dc-021b2484d0f8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax_01a06d2f-4115-7c20-86f6-67c1d3b3bcf1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_01a06d2f-4115-7d0c-a7ab-1a08128d048b" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax_01a06d2f-4115-7c20-86f6-67c1d3b3bcf1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax_01a06d2f-4115-7f9e-b327-31072aa6ffd0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_01a06d2f-4115-7d0c-a7ab-1a08128d048b" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax_01a06d2f-4115-7f9e-b327-31072aa6ffd0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax_01a06d2f-4115-7221-b128-881704ef372d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_01a06d2f-4115-7d0c-a7ab-1a08128d048b" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax_01a06d2f-4115-7221-b128-881704ef372d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_01a06d2f-4115-732a-8857-eef4e9e24ead" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_01a06d2f-4115-7d0c-a7ab-1a08128d048b" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_01a06d2f-4115-732a-8857-eef4e9e24ead" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_01a06d2f-4115-7c06-8fcf-14ea57e5568a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxAbstract_01a06d2f-4115-74db-9373-4bf5726c7fa9" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTax_01a06d2f-4115-7c06-8fcf-14ea57e5568a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="cass-20260930.xsd#CONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_01a06d2f-4115-7f78-b031-5cfd842d84ec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfCashFlowsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_01a06d2f-4115-78bd-92f9-eefc05b6a4a1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_01a06d2f-4115-7f78-b031-5cfd842d84ec" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_01a06d2f-4115-78bd-92f9-eefc05b6a4a1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_01a06d2f-4115-7de7-82e4-b76d8f01272c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_01a06d2f-4115-78bd-92f9-eefc05b6a4a1" xlink:to="loc_us-gaap_NetIncomeLoss_01a06d2f-4115-7de7-82e4-b76d8f01272c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_01a06d2f-4115-727e-8d0f-a22cbb062eb5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_01a06d2f-4115-78bd-92f9-eefc05b6a4a1" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_01a06d2f-4115-727e-8d0f-a22cbb062eb5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_01a06d2f-4115-7c02-9135-ad00837e1129" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_01a06d2f-4115-78bd-92f9-eefc05b6a4a1" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_01a06d2f-4115-7c02-9135-ad00837e1129" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_01a06d2f-4115-70b9-8abb-39f3116861b9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_01a06d2f-4115-7c02-9135-ad00837e1129" xlink:to="loc_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_01a06d2f-4115-70b9-8abb-39f3116861b9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Depreciation_01a06d2f-4115-7122-85a6-d8ec42fbcda6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Depreciation"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_01a06d2f-4115-7c02-9135-ad00837e1129" xlink:to="loc_us-gaap_Depreciation_01a06d2f-4115-7122-85a6-d8ec42fbcda6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtAndEquitySecuritiesGainLoss_01a06d2f-4115-7f55-a8ef-4acbad14e3c7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtAndEquitySecuritiesGainLoss"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_01a06d2f-4115-7c02-9135-ad00837e1129" xlink:to="loc_us-gaap_DebtAndEquitySecuritiesGainLoss_01a06d2f-4115-7f55-a8ef-4acbad14e3c7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_01a06d2f-4115-7bdb-8f92-75b58f3277a1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensation"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_01a06d2f-4115-7c02-9135-ad00837e1129" xlink:to="loc_us-gaap_ShareBasedCompensation_01a06d2f-4115-7bdb-8f92-75b58f3277a1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForLoanLossesExpensed_01a06d2f-4115-75bc-bee4-f1f41e0e9f5f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProvisionForLoanLossesExpensed"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_01a06d2f-4115-7c02-9135-ad00837e1129" xlink:to="loc_us-gaap_ProvisionForLoanLossesExpensed_01a06d2f-4115-75bc-bee4-f1f41e0e9f5f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_01a06d2f-4115-70f1-998d-17878b473f6a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_01a06d2f-4115-7c02-9135-ad00837e1129" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_01a06d2f-4115-70f1-998d-17878b473f6a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_01a06d2f-4115-7960-a3ef-62516a166384" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_01a06d2f-4115-7c02-9135-ad00837e1129" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_01a06d2f-4115-7960-a3ef-62516a166384" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_01a06d2f-4115-7e8c-8396-664739b975ec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherOperatingActivitiesCashFlowStatement"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_01a06d2f-4115-7c02-9135-ad00837e1129" xlink:to="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_01a06d2f-4115-7e8c-8396-664739b975ec" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_01a06d2f-4115-72e6-8025-8ac396387858" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_01a06d2f-4115-7c02-9135-ad00837e1129" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_01a06d2f-4115-72e6-8025-8ac396387858" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_01a06d2f-4115-7609-b8fa-c79db3a07402" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_01a06d2f-4115-7c02-9135-ad00837e1129" xlink:to="loc_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_01a06d2f-4115-7609-b8fa-c79db3a07402" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01a06d2f-4115-7d87-8846-31cc235bef01" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_01a06d2f-4115-7c02-9135-ad00837e1129" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01a06d2f-4115-7d87-8846-31cc235bef01" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_01a06d2f-4115-791d-a26f-e4c1510f7c17" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_01a06d2f-4115-7f78-b031-5cfd842d84ec" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_01a06d2f-4115-791d-a26f-e4c1510f7c17" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_01a06d2f-4115-7574-baa9-33f355410650" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_01a06d2f-4115-791d-a26f-e4c1510f7c17" xlink:to="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_01a06d2f-4115-7574-baa9-33f355410650" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_01a06d2f-4115-73ac-9d2f-667ab42bd158" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_01a06d2f-4115-791d-a26f-e4c1510f7c17" xlink:to="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_01a06d2f-4115-73ac-9d2f-667ab42bd158" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_01a06d2f-4115-74db-a6f9-3852fdfc2b27" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_01a06d2f-4115-791d-a26f-e4c1510f7c17" xlink:to="loc_us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_01a06d2f-4115-74db-a6f9-3852fdfc2b27" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromLoansAndLeases_01a06d2f-4115-7d55-b652-6c8dfa489a9f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForProceedsFromLoansAndLeases"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_01a06d2f-4115-791d-a26f-e4c1510f7c17" xlink:to="loc_us-gaap_PaymentsForProceedsFromLoansAndLeases_01a06d2f-4115-7d55-b652-6c8dfa489a9f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDivestitureOfBusinesses_01a06d2f-4115-70c3-929c-758bb069ef7b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromDivestitureOfBusinesses"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_01a06d2f-4115-791d-a26f-e4c1510f7c17" xlink:to="loc_us-gaap_ProceedsFromDivestitureOfBusinesses_01a06d2f-4115-70c3-929c-758bb069ef7b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_DecreaseIncreaseInPaymentsInAdvanceOfFunding_01a06d2f-4115-7f87-9c2e-f0e9f9bc855a" xlink:href="cass-20260930.xsd#cass_DecreaseIncreaseInPaymentsInAdvanceOfFunding"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_01a06d2f-4115-791d-a26f-e4c1510f7c17" xlink:to="loc_cass_DecreaseIncreaseInPaymentsInAdvanceOfFunding_01a06d2f-4115-7f87-9c2e-f0e9f9bc855a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_01a06d2f-4115-7cc0-8485-6d21a4e5258b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_01a06d2f-4115-791d-a26f-e4c1510f7c17" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_01a06d2f-4115-7cc0-8485-6d21a4e5258b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_01a06d2f-4115-7d83-bef8-81baba3bf5e9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_01a06d2f-4115-791d-a26f-e4c1510f7c17" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_01a06d2f-4115-7d83-bef8-81baba3bf5e9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations_01a06d2f-4115-7bdd-8aab-116bf26da846" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_01a06d2f-4115-791d-a26f-e4c1510f7c17" xlink:to="loc_us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations_01a06d2f-4115-7bdd-8aab-116bf26da846" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_01a06d2f-4115-7b34-9d72-b3e131c4dfd8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_01a06d2f-4115-791d-a26f-e4c1510f7c17" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_01a06d2f-4115-7b34-9d72-b3e131c4dfd8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_NetDecreaseInNoninterestBearingDemandDeposits_01a06d2f-4115-7f23-bf41-3f4e96b70cea" xlink:href="cass-20260930.xsd#cass_NetDecreaseInNoninterestBearingDemandDeposits"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_01a06d2f-4115-791d-a26f-e4c1510f7c17" xlink:to="loc_cass_NetDecreaseInNoninterestBearingDemandDeposits_01a06d2f-4115-7f23-bf41-3f4e96b70cea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_01a06d2f-4115-7131-b727-774b4abcd6b9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_01a06d2f-4115-7f78-b031-5cfd842d84ec" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_01a06d2f-4115-7131-b727-774b4abcd6b9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfDebt_01a06d2f-4115-7f41-9e45-5ee0831526ca" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromIssuanceOfDebt"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_01a06d2f-4115-7131-b727-774b4abcd6b9" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfDebt_01a06d2f-4115-7f41-9e45-5ee0831526ca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_NetIncreaseDecreaseInAccountsAndDraftsReceivableFromCustomers_01a06d2f-4115-7b0e-b4cb-000c539c61f2" xlink:href="cass-20260930.xsd#cass_NetIncreaseDecreaseInAccountsAndDraftsReceivableFromCustomers"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_01a06d2f-4115-7131-b727-774b4abcd6b9" xlink:to="loc_cass_NetIncreaseDecreaseInAccountsAndDraftsReceivableFromCustomers_01a06d2f-4115-7b0e-b4cb-000c539c61f2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_NetDecreaseInNoninterestBearingDemandDeposits_01a06d2f-4115-7a7c-b2be-a57ebcdef510" xlink:href="cass-20260930.xsd#cass_NetDecreaseInNoninterestBearingDemandDeposits"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_01a06d2f-4115-7131-b727-774b4abcd6b9" xlink:to="loc_cass_NetDecreaseInNoninterestBearingDemandDeposits_01a06d2f-4115-7a7c-b2be-a57ebcdef510" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_IncreaseDecreaseInInterestBearingDemandAndSavingsDeposits_01a06d2f-4115-7b26-8ce9-61c90e30297a" xlink:href="cass-20260930.xsd#cass_IncreaseDecreaseInInterestBearingDemandAndSavingsDeposits"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_01a06d2f-4115-7131-b727-774b4abcd6b9" xlink:to="loc_cass_IncreaseDecreaseInInterestBearingDemandAndSavingsDeposits_01a06d2f-4115-7b26-8ce9-61c90e30297a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInTimeDeposits_01a06d2f-4115-7ae8-9d1f-788ffa2a8815" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInTimeDeposits"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_01a06d2f-4115-7131-b727-774b4abcd6b9" xlink:to="loc_us-gaap_IncreaseDecreaseInTimeDeposits_01a06d2f-4115-7ae8-9d1f-788ffa2a8815" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_IncreaseInAccountsAndDraftsPayable_01a06d2f-4115-7014-9d2b-8d6dbc6699e3" xlink:href="cass-20260930.xsd#cass_IncreaseInAccountsAndDraftsPayable"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_01a06d2f-4115-7131-b727-774b4abcd6b9" xlink:to="loc_cass_IncreaseInAccountsAndDraftsPayable_01a06d2f-4115-7014-9d2b-8d6dbc6699e3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_01a06d2f-4115-7f33-8639-e8a34e2d45f1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_01a06d2f-4115-7131-b727-774b4abcd6b9" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_01a06d2f-4115-7f33-8639-e8a34e2d45f1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_01a06d2f-4115-7584-993a-0548fdae3682" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_01a06d2f-4115-7131-b727-774b4abcd6b9" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_01a06d2f-4115-7584-993a-0548fdae3682" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_01a06d2f-4115-7adb-a2cc-5d3a17673e34" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_01a06d2f-4115-7131-b727-774b4abcd6b9" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_01a06d2f-4115-7adb-a2cc-5d3a17673e34" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_01a06d2f-4115-7d4a-a216-2470b3ff6bbf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_01a06d2f-4115-7131-b727-774b4abcd6b9" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_01a06d2f-4115-7d4a-a216-2470b3ff6bbf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations_01a06d2f-4115-75af-b9fd-be5202273103" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_01a06d2f-4115-7131-b727-774b4abcd6b9" xlink:to="loc_us-gaap_CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations_01a06d2f-4115-75af-b9fd-be5202273103" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_01a06d2f-4115-72ed-ba07-df6619d98361" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_01a06d2f-4115-7131-b727-774b4abcd6b9" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_01a06d2f-4115-72ed-ba07-df6619d98361" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_01a06d2f-4115-7db0-a4f2-da167017f472" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_01a06d2f-4115-7f78-b031-5cfd842d84ec" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_01a06d2f-4115-7db0-a4f2-da167017f472" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_01a06d2f-4115-7993-9ce1-42b7d17f4c45" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_01a06d2f-4115-7f78-b031-5cfd842d84ec" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_01a06d2f-4115-7993-9ce1-42b7d17f4c45" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_01a06d2f-4115-7ce0-8cb2-ba93861abac8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_01a06d2f-4115-7f78-b031-5cfd842d84ec" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_01a06d2f-4115-7ce0-8cb2-ba93861abac8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_01a06d2f-4115-70a8-b56a-8bffb19fb4f4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SupplementalCashFlowInformationAbstract"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_01a06d2f-4115-7f78-b031-5cfd842d84ec" xlink:to="loc_us-gaap_SupplementalCashFlowInformationAbstract_01a06d2f-4115-70a8-b56a-8bffb19fb4f4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPaidNet_01a06d2f-4115-7fc1-a5fb-1551d8a49805" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestPaidNet"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_01a06d2f-4115-70a8-b56a-8bffb19fb4f4" xlink:to="loc_us-gaap_InterestPaidNet_01a06d2f-4115-7fc1-a5fb-1551d8a49805" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesPaidNet_01a06d2f-4115-7bb4-8c1f-2a59a5a576cc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxesPaidNet"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_01a06d2f-4115-70a8-b56a-8bffb19fb4f4" xlink:to="loc_us-gaap_IncomeTaxesPaidNet_01a06d2f-4115-7bb4-8c1f-2a59a5a576cc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_01a06d2f-4115-7d86-9886-d9fd5dd17849" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_01a06d2f-4115-7f78-b031-5cfd842d84ec" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_01a06d2f-4115-7d86-9886-d9fd5dd17849" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_01a06d2f-4115-73c5-ba4e-ee895286deb9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperations"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_01a06d2f-4115-7f78-b031-5cfd842d84ec" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperations_01a06d2f-4115-73c5-ba4e-ee895286deb9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/CONSOLIDATEDSTATEMENTSOFSHAREHOLDERSEQUITY" xlink:type="simple" xlink:href="cass-20260930.xsd#CONSOLIDATEDSTATEMENTSOFSHAREHOLDERSEQUITY"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/CONSOLIDATEDSTATEMENTSOFSHAREHOLDERSEQUITY" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract_01a06d2f-41da-75c1-95bc-8b85222e955b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfStockholdersEquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_01a06d2f-41da-79df-a3a1-ad7066f727c5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract_01a06d2f-41da-75c1-95bc-8b85222e955b" xlink:to="loc_us-gaap_StatementTable_01a06d2f-41da-79df-a3a1-ad7066f727c5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_01a06d2f-41da-74a3-ad86-9d855b0142aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_01a06d2f-41da-79df-a3a1-ad7066f727c5" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_01a06d2f-41da-74a3-ad86-9d855b0142aa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_01a06d2f-41da-73ac-9efd-b215b1dd6d55" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_01a06d2f-41da-74a3-ad86-9d855b0142aa" xlink:to="loc_us-gaap_EquityComponentDomain_01a06d2f-41da-73ac-9efd-b215b1dd6d55" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_01a06d2f-41da-767f-94fc-cb3621d4d7f1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_01a06d2f-41da-73ac-9efd-b215b1dd6d55" xlink:to="loc_us-gaap_CommonStockMember_01a06d2f-41da-767f-94fc-cb3621d4d7f1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_01a06d2f-41da-7c42-bb1e-756c7e0caadc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_01a06d2f-41da-73ac-9efd-b215b1dd6d55" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_01a06d2f-41da-7c42-bb1e-756c7e0caadc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_01a06d2f-41da-76e5-9bdb-5fd8a5349d4a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_01a06d2f-41da-73ac-9efd-b215b1dd6d55" xlink:to="loc_us-gaap_RetainedEarningsMember_01a06d2f-41da-76e5-9bdb-5fd8a5349d4a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonMember_01a06d2f-41da-7f32-949f-2babd9e43678" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockCommonMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_01a06d2f-41da-73ac-9efd-b215b1dd6d55" xlink:to="loc_us-gaap_TreasuryStockCommonMember_01a06d2f-41da-7f32-949f-2babd9e43678" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_01a06d2f-41da-7c61-bf69-9bf2e00af161" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_01a06d2f-41da-73ac-9efd-b215b1dd6d55" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_01a06d2f-41da-7c61-bf69-9bf2e00af161" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_01a06d2f-41da-786f-b362-30c675043c24" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_01a06d2f-41da-79df-a3a1-ad7066f727c5" xlink:to="loc_us-gaap_StatementLineItems_01a06d2f-41da-786f-b362-30c675043c24" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_01a06d2f-41da-74b0-aeda-31a0caf3c57f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-41da-786f-b362-30c675043c24" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_01a06d2f-41da-74b0-aeda-31a0caf3c57f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_01a06d2f-41da-75dc-9715-dea32cd7d0e7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_01a06d2f-41da-74b0-aeda-31a0caf3c57f" xlink:to="loc_us-gaap_StockholdersEquity_01a06d2f-41da-75dc-9715-dea32cd7d0e7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_01a06d2f-41da-786a-bbaf-a869ad4bff5f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_01a06d2f-41da-74b0-aeda-31a0caf3c57f" xlink:to="loc_us-gaap_NetIncomeLoss_01a06d2f-41da-786a-bbaf-a869ad4bff5f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsCommonStockCash_01a06d2f-41da-7c55-9b54-0abc19ed8241" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendsCommonStockCash"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_01a06d2f-41da-74b0-aeda-31a0caf3c57f" xlink:to="loc_us-gaap_DividendsCommonStockCash_01a06d2f-41da-7c55-9b54-0abc19ed8241" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_01a06d2f-41da-77d9-8c9f-9ddc3f64c793" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_01a06d2f-41da-74b0-aeda-31a0caf3c57f" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_01a06d2f-41da-77d9-8c9f-9ddc3f64c793" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_01a06d2f-41da-72f2-a8ed-06ebc33a8528" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_01a06d2f-41da-74b0-aeda-31a0caf3c57f" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_01a06d2f-41da-72f2-a8ed-06ebc33a8528" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_01a06d2f-41da-7086-8459-413746e3e623" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_01a06d2f-41da-74b0-aeda-31a0caf3c57f" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_01a06d2f-41da-7086-8459-413746e3e623" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_01a06d2f-41da-76b6-82ab-a2ab79456240" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_01a06d2f-41da-74b0-aeda-31a0caf3c57f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_01a06d2f-41da-76b6-82ab-a2ab79456240" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_01a06d2f-41da-7218-bad1-67ea3714b238" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_01a06d2f-41da-74b0-aeda-31a0caf3c57f" xlink:to="loc_us-gaap_StockholdersEquity_01a06d2f-41da-7218-bad1-67ea3714b238" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockAwardForfeitures_01a06d2f-41da-7509-9dbd-8d973e383f27" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedStockAwardForfeitures"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_01a06d2f-41da-786f-b362-30c675043c24" xlink:to="loc_us-gaap_RestrictedStockAwardForfeitures_01a06d2f-41da-7509-9dbd-8d973e383f27" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/CONSOLIDATEDSTATEMENTSOFSHAREHOLDERSEQUITYParenthetical" xlink:type="simple" xlink:href="cass-20260930.xsd#CONSOLIDATEDSTATEMENTSOFSHAREHOLDERSEQUITYParenthetical"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/CONSOLIDATEDSTATEMENTSOFSHAREHOLDERSEQUITYParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract_01a06d2f-41da-758f-a101-32709c8a229f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfStockholdersEquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockDividendsPerShareCashPaid_01a06d2f-41da-710c-84b1-b62783b9a961" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockDividendsPerShareCashPaid"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract_01a06d2f-41da-758f-a101-32709c8a229f" xlink:to="loc_us-gaap_CommonStockDividendsPerShareCashPaid_01a06d2f-41da-710c-84b1-b62783b9a961" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross_01a06d2f-41da-70d3-8ea6-8940abacc03d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract_01a06d2f-41da-758f-a101-32709c8a229f" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross_01a06d2f-41da-70d3-8ea6-8940abacc03d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodShares_01a06d2f-41da-74bf-b2a0-9557077ed139" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockRepurchasedDuringPeriodShares"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract_01a06d2f-41da-758f-a101-32709c8a229f" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodShares_01a06d2f-41da-74bf-b2a0-9557077ed139" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockAwardForfeitures_01a06d2f-41da-7824-9c2c-064dd92e9064" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedStockAwardForfeitures"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract_01a06d2f-41da-758f-a101-32709c8a229f" xlink:to="loc_us-gaap_RestrictedStockAwardForfeitures_01a06d2f-41da-7824-9c2c-064dd92e9064" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/BasisofPresentation" xlink:type="simple" xlink:href="cass-20260930.xsd#BasisofPresentation"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/BasisofPresentation" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_01a06d2f-41da-7e25-ba74-f6fb15a5f12c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SignificantAccountingPoliciesTextBlock_01a06d2f-41da-7643-962f-79ca4dc9916a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SignificantAccountingPoliciesTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_01a06d2f-41da-7e25-ba74-f6fb15a5f12c" xlink:to="loc_us-gaap_SignificantAccountingPoliciesTextBlock_01a06d2f-41da-7643-962f-79ca4dc9916a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/IntangibleAssets" xlink:type="simple" xlink:href="cass-20260930.xsd#IntangibleAssets"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/IntangibleAssets" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_01a06d2f-41da-753b-96cd-48add72f6b67" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_01a06d2f-41da-7e79-a79c-b243873fef87" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_01a06d2f-41da-753b-96cd-48add72f6b67" xlink:to="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_01a06d2f-41da-7e79-a79c-b243873fef87" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/EarningsPerShare" xlink:type="simple" xlink:href="cass-20260930.xsd#EarningsPerShare"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/EarningsPerShare" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_01a06d2f-41da-7b52-8f00-3809325a48d0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareTextBlock_01a06d2f-41da-72af-b0ed-3c42baea48aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_01a06d2f-41da-7b52-8f00-3809325a48d0" xlink:to="loc_us-gaap_EarningsPerShareTextBlock_01a06d2f-41da-72af-b0ed-3c42baea48aa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/StockRepurchases" xlink:type="simple" xlink:href="cass-20260930.xsd#StockRepurchases"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/StockRepurchases" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_01a06d2f-41da-7994-b631-92b9f821d275" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockTextBlock_01a06d2f-41da-7d3a-8787-dd2bd227a079" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_01a06d2f-41da-7994-b631-92b9f821d275" xlink:to="loc_us-gaap_TreasuryStockTextBlock_01a06d2f-41da-7d3a-8787-dd2bd227a079" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/IndustrySegmentInformation" xlink:type="simple" xlink:href="cass-20260930.xsd#IndustrySegmentInformation"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/IndustrySegmentInformation" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingAbstract_01a06d2f-41da-7a5f-aebf-16196e061c0f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingDisclosureTextBlock_01a06d2f-41da-787d-b288-7cb1d1d43551" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_01a06d2f-41da-7a5f-aebf-16196e061c0f" xlink:to="loc_us-gaap_SegmentReportingDisclosureTextBlock_01a06d2f-41da-787d-b288-7cb1d1d43551" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/LoansbyType" xlink:type="simple" xlink:href="cass-20260930.xsd#LoansbyType"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/LoansbyType" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-7b03-b148-e31990349c23" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReceivablesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock_01a06d2f-41db-7d0b-bdb3-52b7f2a86695" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-7b03-b148-e31990349c23" xlink:to="loc_us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock_01a06d2f-41db-7d0b-bdb3-52b7f2a86695" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/CommitmentsandContingencies" xlink:type="simple" xlink:href="cass-20260930.xsd#CommitmentsandContingencies"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/CommitmentsandContingencies" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_01a06d2f-41db-7ca5-a4b8-6fc6d5825e17" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_01a06d2f-41db-776f-b09d-7c95c53bcc17" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_01a06d2f-41db-7ca5-a4b8-6fc6d5825e17" xlink:to="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_01a06d2f-41db-776f-b09d-7c95c53bcc17" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/StockBasedCompensation" xlink:type="simple" xlink:href="cass-20260930.xsd#StockBasedCompensation"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/StockBasedCompensation" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_01a06d2f-41db-7a78-ab16-f93e649579e2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_01a06d2f-41db-7c44-aa65-20e1a5ccd2a8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_01a06d2f-41db-7a78-ab16-f93e649579e2" xlink:to="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_01a06d2f-41db-7c44-aa65-20e1a5ccd2a8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/DefinedPensionPlans" xlink:type="simple" xlink:href="cass-20260930.xsd#DefinedPensionPlans"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/DefinedPensionPlans" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_01a06d2f-41db-7cac-b903-8c4d91900ab7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_01a06d2f-41db-7dbc-85a5-2b5e5f35f493" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_01a06d2f-41db-7cac-b903-8c4d91900ab7" xlink:to="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_01a06d2f-41db-7dbc-85a5-2b5e5f35f493" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/IncomeTaxes" xlink:type="simple" xlink:href="cass-20260930.xsd#IncomeTaxes"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/IncomeTaxes" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_01a06d2f-41db-7542-9bea-043d8ad2b911" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureTextBlock_01a06d2f-41db-70c8-a1cb-7aee968fa7eb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_01a06d2f-41db-7542-9bea-043d8ad2b911" xlink:to="loc_us-gaap_IncomeTaxDisclosureTextBlock_01a06d2f-41db-70c8-a1cb-7aee968fa7eb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/InvestmentinSecurities" xlink:type="simple" xlink:href="cass-20260930.xsd#InvestmentinSecurities"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/InvestmentinSecurities" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_01a06d2f-41db-7cc0-aecf-110a96256f29" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock_01a06d2f-41db-7c7a-8341-b4fd2f9b8563" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_01a06d2f-41db-7cc0-aecf-110a96256f29" xlink:to="loc_us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock_01a06d2f-41db-7c7a-8341-b4fd2f9b8563" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/FairValueofFinancialInstruments" xlink:type="simple" xlink:href="cass-20260930.xsd#FairValueofFinancialInstruments"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/FairValueofFinancialInstruments" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_01a06d2f-41db-735f-9993-ab86153b046a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresTextBlock_01a06d2f-41db-7ad0-bc20-1a6992825087" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueDisclosuresTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_01a06d2f-41db-735f-9993-ab86153b046a" xlink:to="loc_us-gaap_FairValueDisclosuresTextBlock_01a06d2f-41db-7ad0-bc20-1a6992825087" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/RevenuefromContractswithCustomers" xlink:type="simple" xlink:href="cass-20260930.xsd#RevenuefromContractswithCustomers"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/RevenuefromContractswithCustomers" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract_01a06d2f-41db-7e17-a7f3-5c1e0d4f24eb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerTextBlock_01a06d2f-41db-7665-9dcb-4e8bf5117534" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_01a06d2f-41db-7e17-a7f3-5c1e0d4f24eb" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerTextBlock_01a06d2f-41db-7665-9dcb-4e8bf5117534" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/Leases" xlink:type="simple" xlink:href="cass-20260930.xsd#Leases"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/Leases" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesAbstract_01a06d2f-41db-7af8-a08d-d0f22ad7d4a0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LeasesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeasesTextBlock_01a06d2f-41db-7c03-9836-0001fad53e38" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeasesTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_01a06d2f-41db-7af8-a08d-d0f22ad7d4a0" xlink:to="loc_us-gaap_LesseeOperatingLeasesTextBlock_01a06d2f-41db-7c03-9836-0001fad53e38" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/SubsequentEvents" xlink:type="simple" xlink:href="cass-20260930.xsd#SubsequentEvents"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/SubsequentEvents" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventsAbstract_01a06d2f-41db-7a90-aeff-808daf41c6e3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventsTextBlock_01a06d2f-41db-7f9c-84db-b7311a51ab8f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventsTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventsAbstract_01a06d2f-41db-7a90-aeff-808daf41c6e3" xlink:to="loc_us-gaap_SubsequentEventsTextBlock_01a06d2f-41db-7f9c-84db-b7311a51ab8f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/DiscontinuedOperationsandDisposalGroups" xlink:type="simple" xlink:href="cass-20260930.xsd#DiscontinuedOperationsandDisposalGroups"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/DiscontinuedOperationsandDisposalGroups" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7723-9f79-1b942e2f662c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/Debt" xlink:type="simple" xlink:href="cass-20260930.xsd#Debt"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/Debt" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_01a06d2f-41db-7c86-b9ff-44190ae503df" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtDisclosureAbstract"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/CommitmentandContingenciesPolicies" xlink:type="simple" xlink:href="cass-20260930.xsd#CommitmentandContingenciesPolicies"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/CommitmentandContingenciesPolicies" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_01a06d2f-41db-7176-bc23-52ae8b7629e0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/IntangibleAssetsTables" xlink:type="simple" xlink:href="cass-20260930.xsd#IntangibleAssetsTables"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/IntangibleAssetsTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_01a06d2f-41da-7ba5-988a-2ffb08fc91a6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock_01a06d2f-41da-7d7e-9bee-04aa0eb26b2f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_01a06d2f-41da-7ba5-988a-2ffb08fc91a6" xlink:to="loc_us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock_01a06d2f-41da-7d7e-9bee-04aa0eb26b2f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/EarningsPerShareTables" xlink:type="simple" xlink:href="cass-20260930.xsd#EarningsPerShareTables"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/EarningsPerShareTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_01a06d2f-41da-723b-ad23-bca9c10174f9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_01a06d2f-41da-79cc-b0ac-b63f301a6b21" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_01a06d2f-41da-723b-ad23-bca9c10174f9" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_01a06d2f-41da-79cc-b0ac-b63f301a6b21" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/IndustrySegmentInformationTables" xlink:type="simple" xlink:href="cass-20260930.xsd#IndustrySegmentInformationTables"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/IndustrySegmentInformationTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingAbstract_01a06d2f-41da-73db-8c82-1ff22e8d1f2f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_01a06d2f-41da-7412-bb38-8cf46be5c3c8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_01a06d2f-41da-73db-8c82-1ff22e8d1f2f" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_01a06d2f-41da-7412-bb38-8cf46be5c3c8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/LoansbyTypeTables" xlink:type="simple" xlink:href="cass-20260930.xsd#LoansbyTypeTables"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/LoansbyTypeTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-783f-9147-d934c9bc375e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReceivablesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_SummaryOfLoanCategoriesTableTextBlock_01a06d2f-41db-7bfa-92bd-4d94aee061bd" xlink:href="cass-20260930.xsd#cass_SummaryOfLoanCategoriesTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-783f-9147-d934c9bc375e" xlink:to="loc_cass_SummaryOfLoanCategoriesTableTextBlock_01a06d2f-41db-7bfa-92bd-4d94aee061bd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDebtTableTextBlock_01a06d2f-41db-7721-a129-9e55b9ca5632" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfDebtTableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-783f-9147-d934c9bc375e" xlink:to="loc_us-gaap_ScheduleOfDebtTableTextBlock_01a06d2f-41db-7721-a129-9e55b9ca5632" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_ScheduleOfCreditExposureOfTheLoanPortfolioTableTextBlock_01a06d2f-41db-7312-bbc0-dee020afa5a3" xlink:href="cass-20260930.xsd#cass_ScheduleOfCreditExposureOfTheLoanPortfolioTableTextBlock"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-783f-9147-d934c9bc375e" xlink:to="loc_cass_ScheduleOfCreditExposureOfTheLoanPortfolioTableTextBlock_01a06d2f-41db-7312-bbc0-dee020afa5a3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock_01a06d2f-41db-74a7-b9e6-49f173a08a0d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-783f-9147-d934c9bc375e" xlink:to="loc_us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock_01a06d2f-41db-74a7-b9e6-49f173a08a0d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_SummaryOfAllowanceForCreditLossByCategoryTableTextBlock_01a06d2f-41db-7e14-9a8b-6dec86cc9675" xlink:href="cass-20260930.xsd#cass_SummaryOfAllowanceForCreditLossByCategoryTableTextBlock"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-783f-9147-d934c9bc375e" xlink:to="loc_cass_SummaryOfAllowanceForCreditLossByCategoryTableTextBlock_01a06d2f-41db-7e14-9a8b-6dec86cc9675" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/StockBasedCompensationTables" xlink:type="simple" xlink:href="cass-20260930.xsd#StockBasedCompensationTables"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/StockBasedCompensationTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_01a06d2f-41db-71e6-ba6a-b13a950bc725" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock_01a06d2f-41db-7821-893d-1f7431a2b7a1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_01a06d2f-41db-71e6-ba6a-b13a950bc725" xlink:to="loc_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock_01a06d2f-41db-7821-893d-1f7431a2b7a1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationPerformanceSharesAwardOutstandingActivityTableTextBlock_01a06d2f-41db-7ee3-a641-f7552d472db3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationPerformanceSharesAwardOutstandingActivityTableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_01a06d2f-41db-71e6-ba6a-b13a950bc725" xlink:to="loc_us-gaap_ShareBasedCompensationPerformanceSharesAwardOutstandingActivityTableTextBlock_01a06d2f-41db-7ee3-a641-f7552d472db3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/DefinedPensionPlansTables" xlink:type="simple" xlink:href="cass-20260930.xsd#DefinedPensionPlansTables"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/DefinedPensionPlansTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_01a06d2f-41db-727c-a6dc-94ab4b46e6a3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_01a06d2f-41db-7b45-8c96-27aec9bd5970" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfNetBenefitCostsTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_01a06d2f-41db-727c-a6dc-94ab4b46e6a3" xlink:to="loc_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_01a06d2f-41db-7b45-8c96-27aec9bd5970" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/InvestmentinSecuritiesTables" xlink:type="simple" xlink:href="cass-20260930.xsd#InvestmentinSecuritiesTables"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/InvestmentinSecuritiesTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_01a06d2f-41db-7220-9fc1-7920ba0de854" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleTableTextBlock_01a06d2f-41db-716f-b915-43ad8cf4973c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_01a06d2f-41db-7220-9fc1-7920ba0de854" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleTableTextBlock_01a06d2f-41db-716f-b915-43ad8cf4973c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrealizedGainLossOnInvestmentsTableTextBlock_01a06d2f-41db-70c6-bca7-2020d92f0cba" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnrealizedGainLossOnInvestmentsTableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_01a06d2f-41db-7220-9fc1-7920ba0de854" xlink:to="loc_us-gaap_UnrealizedGainLossOnInvestmentsTableTextBlock_01a06d2f-41db-70c6-bca7-2020d92f0cba" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/FairValueofFinancialInstrumentsTables" xlink:type="simple" xlink:href="cass-20260930.xsd#FairValueofFinancialInstrumentsTables"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/FairValueofFinancialInstrumentsTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_01a06d2f-41db-7187-bd10-bf6ec8e031b4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByBalanceSheetGroupingTextBlock_01a06d2f-41db-7fad-b513-8fede4bc419a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByBalanceSheetGroupingTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_01a06d2f-41db-7187-bd10-bf6ec8e031b4" xlink:to="loc_us-gaap_FairValueByBalanceSheetGroupingTextBlock_01a06d2f-41db-7fad-b513-8fede4bc419a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/RevenuefromContractswithCustomersTables" xlink:type="simple" xlink:href="cass-20260930.xsd#RevenuefromContractswithCustomersTables"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/RevenuefromContractswithCustomersTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract_01a06d2f-41db-7dad-b55d-97069b841427" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTableTextBlock_01a06d2f-41db-785c-b763-b33b065b1292" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisaggregationOfRevenueTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_01a06d2f-41db-7dad-b55d-97069b841427" xlink:to="loc_us-gaap_DisaggregationOfRevenueTableTextBlock_01a06d2f-41db-785c-b763-b33b065b1292" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/LeasesTables" xlink:type="simple" xlink:href="cass-20260930.xsd#LeasesTables"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/LeasesTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesAbstract_01a06d2f-41db-7ba8-a894-83e0f6d7a99e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LeasesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_01a06d2f-41db-77da-be3d-935e98625a75" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_01a06d2f-41db-7ba8-a894-83e0f6d7a99e" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_01a06d2f-41db-77da-be3d-935e98625a75" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/DiscontinuedOperationsandDisposalGroupsTables" xlink:type="simple" xlink:href="cass-20260930.xsd#DiscontinuedOperationsandDisposalGroupsTables"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/DiscontinuedOperationsandDisposalGroupsTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-79ad-9d18-3b159e37c25a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/DebtTables" xlink:type="simple" xlink:href="cass-20260930.xsd#DebtTables"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/DebtTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_01a06d2f-41db-7cae-8e95-6e059e950fb0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtDisclosureAbstract"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/IntangibleAssetsNarrativeDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#IntangibleAssetsNarrativeDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/IntangibleAssetsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_01a06d2f-41da-77da-a7be-bd62aa43f85d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_01a06d2f-41da-7982-a7a9-5023af8fd228" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_01a06d2f-41da-77da-a7be-bd62aa43f85d" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_01a06d2f-41da-7982-a7a9-5023af8fd228" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_01a06d2f-41da-7987-9880-06cf9fc53863" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_01a06d2f-41da-7982-a7a9-5023af8fd228" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_01a06d2f-41da-7987-9880-06cf9fc53863" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_01a06d2f-41da-7345-bc3b-54ce771c25e0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_01a06d2f-41da-7987-9880-06cf9fc53863" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_01a06d2f-41da-7345-bc3b-54ce771c25e0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_01a06d2f-41da-7293-a3d8-3a2b064045a1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_01a06d2f-41da-7982-a7a9-5023af8fd228" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_01a06d2f-41da-7293-a3d8-3a2b064045a1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a06d2f-41da-71b5-839f-bfe472a073da" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_01a06d2f-41da-7293-a3d8-3a2b064045a1" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a06d2f-41da-71b5-839f-bfe472a073da" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerListsMember_01a06d2f-41da-7bb6-adc7-823c7bea2d71" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CustomerListsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a06d2f-41da-71b5-839f-bfe472a073da" xlink:to="loc_us-gaap_CustomerListsMember_01a06d2f-41da-7bb6-adc7-823c7bea2d71" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradeNamesMember_01a06d2f-41da-72e0-b839-2b1cc6e908a7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TradeNamesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a06d2f-41da-71b5-839f-bfe472a073da" xlink:to="loc_us-gaap_TradeNamesMember_01a06d2f-41da-72e0-b839-2b1cc6e908a7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIntangibleAssetsMember_01a06d2f-41da-79d7-85ac-0e948883df56" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherIntangibleAssetsMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a06d2f-41da-71b5-839f-bfe472a073da" xlink:to="loc_us-gaap_OtherIntangibleAssetsMember_01a06d2f-41da-79d7-85ac-0e948883df56" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareDevelopmentMember_01a06d2f-41da-7047-b655-0c6715113757" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SoftwareDevelopmentMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a06d2f-41da-71b5-839f-bfe472a073da" xlink:to="loc_us-gaap_SoftwareDevelopmentMember_01a06d2f-41da-7047-b655-0c6715113757" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_01a06d2f-41da-7f45-978a-f1e8eddf9c86" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_01a06d2f-41da-7982-a7a9-5023af8fd228" xlink:to="loc_srt_RangeAxis_01a06d2f-41da-7f45-978a-f1e8eddf9c86" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_01a06d2f-41da-72c1-8b43-8ec44218d0bb" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_01a06d2f-41da-7f45-978a-f1e8eddf9c86" xlink:to="loc_srt_RangeMember_01a06d2f-41da-72c1-8b43-8ec44218d0bb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_01a06d2f-41da-7df6-8e20-c6135717bb62" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_01a06d2f-41da-72c1-8b43-8ec44218d0bb" xlink:to="loc_srt_MinimumMember_01a06d2f-41da-7df6-8e20-c6135717bb62" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_01a06d2f-41da-74fc-8d27-49d0e5a0f772" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_01a06d2f-41da-72c1-8b43-8ec44218d0bb" xlink:to="loc_srt_MaximumMember_01a06d2f-41da-74fc-8d27-49d0e5a0f772" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeAxis_01a06d2f-41da-712f-a489-aa12c11210df" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputTypeAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_01a06d2f-41da-7982-a7a9-5023af8fd228" xlink:to="loc_us-gaap_MeasurementInputTypeAxis_01a06d2f-41da-712f-a489-aa12c11210df" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_01a06d2f-41da-7cf0-bffe-f5fd5cedcfc9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_01a06d2f-41da-712f-a489-aa12c11210df" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_01a06d2f-41da-7cf0-bffe-f5fd5cedcfc9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a06d2f-41da-7ec2-a1d4-901caea330c1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_01a06d2f-41da-7982-a7a9-5023af8fd228" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a06d2f-41da-7ec2-a1d4-901caea330c1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_01a06d2f-41da-7a59-8010-16356c18e776" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a06d2f-41da-7ec2-a1d4-901caea330c1" xlink:to="loc_us-gaap_Goodwill_01a06d2f-41da-7a59-8010-16356c18e776" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_01a06d2f-41da-73ce-b0c3-bdca4dfb10ae" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a06d2f-41da-7ec2-a1d4-901caea330c1" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_01a06d2f-41da-73ce-b0c3-bdca4dfb10ae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_01a06d2f-41da-752b-b8da-32ae02f49260" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a06d2f-41da-7ec2-a1d4-901caea330c1" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_01a06d2f-41da-752b-b8da-32ae02f49260" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_01a06d2f-41da-7f62-872d-f743ba3de984" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a06d2f-41da-7ec2-a1d4-901caea330c1" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_01a06d2f-41da-7f62-872d-f743ba3de984" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextRollingTwelveMonths_01a06d2f-41da-7365-9c63-4d60eef692c1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextRollingTwelveMonths"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a06d2f-41da-7ec2-a1d4-901caea330c1" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextRollingTwelveMonths_01a06d2f-41da-7365-9c63-4d60eef692c1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearTwo_01a06d2f-41da-75d0-9f2d-bcbe952c639a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearTwo"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a06d2f-41da-7ec2-a1d4-901caea330c1" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearTwo_01a06d2f-41da-75d0-9f2d-bcbe952c639a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearThree_01a06d2f-41da-7c3f-8052-0fba32bab8ca" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearThree"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a06d2f-41da-7ec2-a1d4-901caea330c1" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearThree_01a06d2f-41da-7c3f-8052-0fba32bab8ca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearFour_01a06d2f-41da-7c5f-9e2c-478a7ddd3815" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearFour"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a06d2f-41da-7ec2-a1d4-901caea330c1" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearFour_01a06d2f-41da-7c5f-9e2c-478a7ddd3815" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/IntangibleAssetsScheduleofIntangibleAssetsandGoodwillDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#IntangibleAssetsScheduleofIntangibleAssetsandGoodwillDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/IntangibleAssetsScheduleofIntangibleAssetsandGoodwillDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_01a06d2f-41da-756b-ae11-977133af4c70" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_01a06d2f-41da-711a-8ff7-107da97cf21b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_01a06d2f-41da-756b-ae11-977133af4c70" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_01a06d2f-41da-711a-8ff7-107da97cf21b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_01a06d2f-41da-74f9-b1ef-70f6985e5934" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_01a06d2f-41da-711a-8ff7-107da97cf21b" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_01a06d2f-41da-74f9-b1ef-70f6985e5934" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a06d2f-41da-7386-a861-261058b7d91d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_01a06d2f-41da-74f9-b1ef-70f6985e5934" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a06d2f-41da-7386-a861-261058b7d91d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerListsMember_01a06d2f-41da-7ebc-8803-32575aff3ced" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CustomerListsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a06d2f-41da-7386-a861-261058b7d91d" xlink:to="loc_us-gaap_CustomerListsMember_01a06d2f-41da-7ebc-8803-32575aff3ced" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradeNamesMember_01a06d2f-41da-781b-9ccb-39dd86ad027b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TradeNamesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a06d2f-41da-7386-a861-261058b7d91d" xlink:to="loc_us-gaap_TradeNamesMember_01a06d2f-41da-781b-9ccb-39dd86ad027b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIntangibleAssetsMember_01a06d2f-41da-7935-b40b-d5e9d96430a8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherIntangibleAssetsMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a06d2f-41da-7386-a861-261058b7d91d" xlink:to="loc_us-gaap_OtherIntangibleAssetsMember_01a06d2f-41da-7935-b40b-d5e9d96430a8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareDevelopmentMember_01a06d2f-41da-73dc-a086-9b69cd9a55f0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SoftwareDevelopmentMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a06d2f-41da-7386-a861-261058b7d91d" xlink:to="loc_us-gaap_SoftwareDevelopmentMember_01a06d2f-41da-73dc-a086-9b69cd9a55f0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a06d2f-41da-7b8c-a4fd-3f89d49ae6a4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_01a06d2f-41da-711a-8ff7-107da97cf21b" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a06d2f-41da-7b8c-a4fd-3f89d49ae6a4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentForAmortizationAbstract_01a06d2f-41da-72f7-85ad-146deeb82e83" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdjustmentForAmortizationAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a06d2f-41da-7b8c-a4fd-3f89d49ae6a4" xlink:to="loc_us-gaap_AdjustmentForAmortizationAbstract_01a06d2f-41da-72f7-85ad-146deeb82e83" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_01a06d2f-41da-7355-8a1c-a3708bc61962" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentForAmortizationAbstract_01a06d2f-41da-72f7-85ad-146deeb82e83" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_01a06d2f-41da-7355-8a1c-a3708bc61962" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_01a06d2f-41da-78e5-8181-19f3c5d92454" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentForAmortizationAbstract_01a06d2f-41da-72f7-85ad-146deeb82e83" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_01a06d2f-41da-78e5-8181-19f3c5d92454" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_UnamortizedIntangibleAssetAbstract_01a06d2f-41da-7436-9dbc-e489f9c2a81d" xlink:href="cass-20260930.xsd#cass_UnamortizedIntangibleAssetAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a06d2f-41da-7b8c-a4fd-3f89d49ae6a4" xlink:to="loc_cass_UnamortizedIntangibleAssetAbstract_01a06d2f-41da-7436-9dbc-e489f9c2a81d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillGross_01a06d2f-41da-7ec1-af02-c87c33b3f2ba" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GoodwillGross"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cass_UnamortizedIntangibleAssetAbstract_01a06d2f-41da-7436-9dbc-e489f9c2a81d" xlink:to="loc_us-gaap_GoodwillGross_01a06d2f-41da-7ec1-af02-c87c33b3f2ba" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetIncludingGoodwill_01a06d2f-41da-7cff-8833-1026499689c3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IntangibleAssetsNetIncludingGoodwill"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a06d2f-41da-7b8c-a4fd-3f89d49ae6a4" xlink:to="loc_us-gaap_IntangibleAssetsNetIncludingGoodwill_01a06d2f-41da-7cff-8833-1026499689c3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_01a06d2f-41da-7584-9fca-194b1cffdad1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a06d2f-41da-7b8c-a4fd-3f89d49ae6a4" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_01a06d2f-41da-7584-9fca-194b1cffdad1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/netLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/EarningsPerShareDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#EarningsPerShareDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/EarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_01a06d2f-41da-7262-9216-dda6faf7239b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasicAbstract_01a06d2f-41da-7c76-9e7d-3aa231383e8d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareBasicAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_01a06d2f-41da-7262-9216-dda6faf7239b" xlink:to="loc_us-gaap_EarningsPerShareBasicAbstract_01a06d2f-41da-7c76-9e7d-3aa231383e8d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_01a06d2f-41da-7a24-8aa2-8748876d0e6f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAbstract_01a06d2f-41da-7c76-9e7d-3aa231383e8d" xlink:to="loc_us-gaap_NetIncomeLoss_01a06d2f-41da-7a24-8aa2-8748876d0e6f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_01a06d2f-41da-7439-a729-5a4019ccb30c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAbstract_01a06d2f-41da-7c76-9e7d-3aa231383e8d" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_01a06d2f-41da-7439-a729-5a4019ccb30c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_01a06d2f-41da-72e4-a7be-70b96759f1e9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAbstract_01a06d2f-41da-7c76-9e7d-3aa231383e8d" xlink:to="loc_us-gaap_EarningsPerShareBasic_01a06d2f-41da-72e4-a7be-70b96759f1e9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDilutedAbstract_01a06d2f-41da-7abb-827d-b948bbd6ba85" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareDilutedAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_01a06d2f-41da-7262-9216-dda6faf7239b" xlink:to="loc_us-gaap_EarningsPerShareDilutedAbstract_01a06d2f-41da-7abb-827d-b948bbd6ba85" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_01a06d2f-41da-70d8-a35f-68c16da68d2b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareDilutedAbstract_01a06d2f-41da-7abb-827d-b948bbd6ba85" xlink:to="loc_us-gaap_NetIncomeLoss_01a06d2f-41da-70d8-a35f-68c16da68d2b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_01a06d2f-41da-7ff4-b7a9-010c9f1df69e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareDilutedAbstract_01a06d2f-41da-7abb-827d-b948bbd6ba85" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_01a06d2f-41da-7ff4-b7a9-010c9f1df69e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_01a06d2f-41da-7786-9718-ae051c84d0ed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareDilutedAbstract_01a06d2f-41da-7abb-827d-b948bbd6ba85" xlink:to="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_01a06d2f-41da-7786-9718-ae051c84d0ed" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_01a06d2f-41da-7f38-b721-24b376c73589" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareDilutedAbstract_01a06d2f-41da-7abb-827d-b948bbd6ba85" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_01a06d2f-41da-7f38-b721-24b376c73589" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_01a06d2f-41da-7194-b226-0637576739c5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareDilutedAbstract_01a06d2f-41da-7abb-827d-b948bbd6ba85" xlink:to="loc_us-gaap_EarningsPerShareDiluted_01a06d2f-41da-7194-b226-0637576739c5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_01a06d2f-41da-7e27-9e14-073a657f1041" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperations"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_01a06d2f-41da-7262-9216-dda6faf7239b" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperations_01a06d2f-41da-7e27-9e14-073a657f1041" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_01a06d2f-41da-7d75-9f8e-9a4eda681015" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_01a06d2f-41da-7262-9216-dda6faf7239b" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_01a06d2f-41da-7d75-9f8e-9a4eda681015" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_01a06d2f-41da-72be-811e-1b4772f856b4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsPerBasicShare"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_01a06d2f-41da-7262-9216-dda6faf7239b" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_01a06d2f-41da-72be-811e-1b4772f856b4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_01a06d2f-41da-7ff0-ae57-805557cf17e2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_01a06d2f-41da-7262-9216-dda6faf7239b" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_01a06d2f-41da-7ff0-ae57-805557cf17e2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_01a06d2f-41da-70c0-a2ba-0de5a762d5b8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_01a06d2f-41da-7262-9216-dda6faf7239b" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_01a06d2f-41da-70c0-a2ba-0de5a762d5b8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_01a06d2f-41da-7d3e-9455-af4c8aa2a14a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_01a06d2f-41da-7262-9216-dda6faf7239b" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_01a06d2f-41da-7d3e-9455-af4c8aa2a14a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/StockRepurchasesDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#StockRepurchasesDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/StockRepurchasesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_01a06d2f-41da-7a75-8432-bb69a50211e0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased_01a06d2f-41da-74bd-94f9-c53df4939c64" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_01a06d2f-41da-7a75-8432-bb69a50211e0" xlink:to="loc_srt_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased_01a06d2f-41da-74bd-94f9-c53df4939c64" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased_01a06d2f-41da-7df1-a143-849b94e6750c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_01a06d2f-41da-7a75-8432-bb69a50211e0" xlink:to="loc_us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased_01a06d2f-41da-7df1-a143-849b94e6750c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_01a06d2f-41da-7378-910d-a35388cd8b48" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockSharesAcquired"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_01a06d2f-41da-7a75-8432-bb69a50211e0" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired_01a06d2f-41da-7378-910d-a35388cd8b48" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/IndustrySegmentInformationDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#IndustrySegmentInformationDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/IndustrySegmentInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingAbstract_01a06d2f-41da-717e-a9e6-ff8610e87d71" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_01a06d2f-41db-7e53-b367-5e1e75a7ed7b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_01a06d2f-41da-717e-a9e6-ff8610e87d71" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_01a06d2f-41db-7e53-b367-5e1e75a7ed7b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_01a06d2f-41db-7b9f-9e46-30603d95c902" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_01a06d2f-41db-7e53-b367-5e1e75a7ed7b" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_01a06d2f-41db-7b9f-9e46-30603d95c902" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_01a06d2f-41db-7469-9ab8-34b7bd311c92" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_01a06d2f-41db-7b9f-9e46-30603d95c902" xlink:to="loc_us-gaap_SegmentDomain_01a06d2f-41db-7469-9ab8-34b7bd311c92" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_InformationServicesMember_01a06d2f-41db-79c5-bee3-cb0bcae98437" xlink:href="cass-20260930.xsd#cass_InformationServicesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_01a06d2f-41db-7469-9ab8-34b7bd311c92" xlink:to="loc_cass_InformationServicesMember_01a06d2f-41db-79c5-bee3-cb0bcae98437" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_BankingServicesMember_01a06d2f-41db-72c7-bc5c-b82c852fd90d" xlink:href="cass-20260930.xsd#cass_BankingServicesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_01a06d2f-41db-7469-9ab8-34b7bd311c92" xlink:to="loc_cass_BankingServicesMember_01a06d2f-41db-72c7-bc5c-b82c852fd90d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_01a06d2f-41db-7dea-a8c4-4c27d047121b" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidationItemsAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_01a06d2f-41db-7e53-b367-5e1e75a7ed7b" xlink:to="loc_srt_ConsolidationItemsAxis_01a06d2f-41db-7dea-a8c4-4c27d047121b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_01a06d2f-41db-7755-9a82-c4eedb3590d6" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidationItemsDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ConsolidationItemsAxis_01a06d2f-41db-7dea-a8c4-4c27d047121b" xlink:to="loc_srt_ConsolidationItemsDomain_01a06d2f-41db-7755-9a82-c4eedb3590d6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_01a06d2f-41db-7064-805c-5fd20ac0e376" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingSegmentsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ConsolidationItemsDomain_01a06d2f-41db-7755-9a82-c4eedb3590d6" xlink:to="loc_us-gaap_OperatingSegmentsMember_01a06d2f-41db-7064-805c-5fd20ac0e376" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_CorporateReconcilingItemsAndEliminationsMember_01a06d2f-41db-7165-8663-26d7eb780a52" xlink:href="cass-20260930.xsd#cass_CorporateReconcilingItemsAndEliminationsMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ConsolidationItemsDomain_01a06d2f-41db-7755-9a82-c4eedb3590d6" xlink:to="loc_cass_CorporateReconcilingItemsAndEliminationsMember_01a06d2f-41db-7165-8663-26d7eb780a52" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanTypeAxis_01a06d2f-41db-7ec0-bda1-3d92ed054e3d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetirementPlanTypeAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_01a06d2f-41db-7e53-b367-5e1e75a7ed7b" xlink:to="loc_us-gaap_RetirementPlanTypeAxis_01a06d2f-41db-7ec0-bda1-3d92ed054e3d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanTypeDomain_01a06d2f-41db-785d-8299-d933a2a8e5fd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetirementPlanTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RetirementPlanTypeAxis_01a06d2f-41db-7ec0-bda1-3d92ed054e3d" xlink:to="loc_us-gaap_RetirementPlanTypeDomain_01a06d2f-41db-785d-8299-d933a2a8e5fd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember_01a06d2f-41db-7d44-aa2c-0e2ed4b484ea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RetirementPlanTypeDomain_01a06d2f-41db-785d-8299-d933a2a8e5fd" xlink:to="loc_us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember_01a06d2f-41db-7d44-aa2c-0e2ed4b484ea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_01a06d2f-41db-7ce9-b66b-c707ac9a46a2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_01a06d2f-41db-7e53-b367-5e1e75a7ed7b" xlink:to="loc_us-gaap_SegmentReportingInformationLineItems_01a06d2f-41db-7ce9-b66b-c707ac9a46a2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLossAbstract_01a06d2f-41db-70ed-9034-3ae99431fdc2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeExpenseAfterProvisionForLoanLossAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a06d2f-41db-7ce9-b66b-c707ac9a46a2" xlink:to="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLossAbstract_01a06d2f-41db-70ed-9034-3ae99431fdc2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoninterestIncome_01a06d2f-41db-7bee-b4b4-2921c639caef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NoninterestIncome"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLossAbstract_01a06d2f-41db-70ed-9034-3ae99431fdc2" xlink:to="loc_us-gaap_NoninterestIncome_01a06d2f-41db-7bee-b4b4-2921c639caef" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfInvestments_01a06d2f-41db-7c79-aab4-3fbafd281095" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnSaleOfInvestments"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLossAbstract_01a06d2f-41db-70ed-9034-3ae99431fdc2" xlink:to="loc_us-gaap_GainLossOnSaleOfInvestments_01a06d2f-41db-7c79-aab4-3fbafd281095" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossOnSaleOfInvestments_01a06d2f-41db-7cda-96b3-ecb94e65ae3d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossOnSaleOfInvestments"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLossAbstract_01a06d2f-41db-70ed-9034-3ae99431fdc2" xlink:to="loc_us-gaap_LossOnSaleOfInvestments_01a06d2f-41db-7cda-96b3-ecb94e65ae3d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_InterestAndDividendIncomeIncludingTaxEquivalentAdjustmentOperating_01a06d2f-41db-7797-8962-4daa91403969" xlink:href="cass-20260930.xsd#cass_InterestAndDividendIncomeIncludingTaxEquivalentAdjustmentOperating"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLossAbstract_01a06d2f-41db-70ed-9034-3ae99431fdc2" xlink:to="loc_cass_InterestAndDividendIncomeIncludingTaxEquivalentAdjustmentOperating_01a06d2f-41db-7797-8962-4daa91403969" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseOperating_01a06d2f-41db-741b-a227-fc19f8d5bdf5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseOperating"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLossAbstract_01a06d2f-41db-70ed-9034-3ae99431fdc2" xlink:to="loc_us-gaap_InterestExpenseOperating_01a06d2f-41db-741b-a227-fc19f8d5bdf5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_01a06d2f-41db-740a-a529-110617f80957" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpense"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLossAbstract_01a06d2f-41db-70ed-9034-3ae99431fdc2" xlink:to="loc_us-gaap_InterestExpense_01a06d2f-41db-740a-a529-110617f80957" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_01a06d2f-41db-7778-8438-8023c5cdc812" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLossAbstract_01a06d2f-41db-70ed-9034-3ae99431fdc2" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_01a06d2f-41db-7778-8438-8023c5cdc812" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_IncomeLossFromContinuingOperationsIncludingTaxEquivalentAdjustmentBeforeIncomeTaxesNoncontrollingInterest_01a06d2f-41db-7b2e-818c-de5b42bf1e64" xlink:href="cass-20260930.xsd#cass_IncomeLossFromContinuingOperationsIncludingTaxEquivalentAdjustmentBeforeIncomeTaxesNoncontrollingInterest"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLossAbstract_01a06d2f-41db-70ed-9034-3ae99431fdc2" xlink:to="loc_cass_IncomeLossFromContinuingOperationsIncludingTaxEquivalentAdjustmentBeforeIncomeTaxesNoncontrollingInterest_01a06d2f-41db-7b2e-818c-de5b42bf1e64" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_IncomeLossFromDiscontinuedOperationsIncludingTaxEquivalentAdjustmentBeforeIncomeTaxesNoncontrollingInterest_01a06d2f-41db-7036-b1a7-b45cffb2d232" xlink:href="cass-20260930.xsd#cass_IncomeLossFromDiscontinuedOperationsIncludingTaxEquivalentAdjustmentBeforeIncomeTaxesNoncontrollingInterest"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLossAbstract_01a06d2f-41db-70ed-9034-3ae99431fdc2" xlink:to="loc_cass_IncomeLossFromDiscontinuedOperationsIncludingTaxEquivalentAdjustmentBeforeIncomeTaxesNoncontrollingInterest_01a06d2f-41db-7036-b1a7-b45cffb2d232" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_01a06d2f-41db-753f-bbfd-34eccc580066" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLossAbstract_01a06d2f-41db-70ed-9034-3ae99431fdc2" xlink:to="loc_us-gaap_Goodwill_01a06d2f-41db-753f-bbfd-34eccc580066" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIntangibleAssetsNet_01a06d2f-41db-7c17-a881-97e8dde7834f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherIntangibleAssetsNet"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLossAbstract_01a06d2f-41db-70ed-9034-3ae99431fdc2" xlink:to="loc_us-gaap_OtherIntangibleAssetsNet_01a06d2f-41db-7c17-a881-97e8dde7834f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_01a06d2f-41db-7c5c-b1ca-908af8305340" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLossAbstract_01a06d2f-41db-70ed-9034-3ae99431fdc2" xlink:to="loc_us-gaap_Assets_01a06d2f-41db-7c5c-b1ca-908af8305340" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_FundingSources_01a06d2f-41db-7a9d-ae43-96716fe36fef" xlink:href="cass-20260930.xsd#cass_FundingSources"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLossAbstract_01a06d2f-41db-70ed-9034-3ae99431fdc2" xlink:to="loc_cass_FundingSources_01a06d2f-41db-7a9d-ae43-96716fe36fef" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForLoanLossesExpensed_01a06d2f-41db-76df-a8b2-39f2c25c985f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProvisionForLoanLossesExpensed"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a06d2f-41db-7ce9-b66b-c707ac9a46a2" xlink:to="loc_us-gaap_ProvisionForLoanLossesExpensed_01a06d2f-41db-76df-a8b2-39f2c25c985f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_01a06d2f-41db-7e4d-b3da-38a9665a0099" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Revenues"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a06d2f-41db-7ce9-b66b-c707ac9a46a2" xlink:to="loc_us-gaap_Revenues_01a06d2f-41db-7e4d-b3da-38a9665a0099" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LaborAndRelatedExpense_01a06d2f-41db-760c-8688-f056bbc3f6a3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LaborAndRelatedExpense"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a06d2f-41db-7ce9-b66b-c707ac9a46a2" xlink:to="loc_us-gaap_LaborAndRelatedExpense_01a06d2f-41db-760c-8688-f056bbc3f6a3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OccupancyNet_01a06d2f-41db-7b4a-9671-a82c8c7eaa0b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OccupancyNet"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a06d2f-41db-7ce9-b66b-c707ac9a46a2" xlink:to="loc_us-gaap_OccupancyNet_01a06d2f-41db-7b4a-9671-a82c8c7eaa0b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquipmentExpense_01a06d2f-41db-7632-8b84-e9f0d03e2c2c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquipmentExpense"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a06d2f-41db-7ce9-b66b-c707ac9a46a2" xlink:to="loc_us-gaap_EquipmentExpense_01a06d2f-41db-7632-8b84-e9f0d03e2c2c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_BadDebtExpense_01a06d2f-41db-740c-be44-206c91a78320" xlink:href="cass-20260930.xsd#cass_BadDebtExpense"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a06d2f-41db-7ce9-b66b-c707ac9a46a2" xlink:to="loc_cass_BadDebtExpense_01a06d2f-41db-740c-be44-206c91a78320" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCostAndExpenseOperating_01a06d2f-41db-73ee-b5b8-a165c8f42601" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherCostAndExpenseOperating"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a06d2f-41db-7ce9-b66b-c707ac9a46a2" xlink:to="loc_us-gaap_OtherCostAndExpenseOperating_01a06d2f-41db-73ee-b5b8-a165c8f42601" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_01a06d2f-41db-79aa-a6ea-95a9a2c6c444" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingExpenses"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a06d2f-41db-7ce9-b66b-c707ac9a46a2" xlink:to="loc_us-gaap_OperatingExpenses_01a06d2f-41db-79aa-a6ea-95a9a2c6c444" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_01a06d2f-41db-740b-a229-bdec3e14a724" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a06d2f-41db-7ce9-b66b-c707ac9a46a2" xlink:to="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_01a06d2f-41db-740b-a229-bdec3e14a724" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleRealizedGain_01a06d2f-41db-7599-b4d9-ad7659f2047e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleRealizedGain"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a06d2f-41db-7ce9-b66b-c707ac9a46a2" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleRealizedGain_01a06d2f-41db-7599-b4d9-ad7659f2047e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleRealizedLoss_01a06d2f-41db-719a-a31e-128df2a3d270" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleRealizedLoss"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a06d2f-41db-7ce9-b66b-c707ac9a46a2" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleRealizedLoss_01a06d2f-41db-719a-a31e-128df2a3d270" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_01a06d2f-41db-74c5-9d21-b7fdd9c0d963" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensation"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a06d2f-41db-7ce9-b66b-c707ac9a46a2" xlink:to="loc_us-gaap_ShareBasedCompensation_01a06d2f-41db-74c5-9d21-b7fdd9c0d963" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportableSegments_01a06d2f-41db-782c-9346-1dd88234c396" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NumberOfReportableSegments"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_01a06d2f-41da-717e-a9e6-ff8610e87d71" xlink:to="loc_us-gaap_NumberOfReportableSegments_01a06d2f-41db-782c-9346-1dd88234c396" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingDisclosureOfEntitysReportableSegmentsAbstract_01a06d2f-41db-7f41-8822-40acd2f6bf80" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingDisclosureOfEntitysReportableSegmentsAbstract"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_01a06d2f-41da-717e-a9e6-ff8610e87d71" xlink:to="loc_us-gaap_SegmentReportingDisclosureOfEntitysReportableSegmentsAbstract_01a06d2f-41db-7f41-8822-40acd2f6bf80" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/LoansbyTypeSummaryofLoanCategoriesDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#LoansbyTypeSummaryofLoanCategoriesDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/LoansbyTypeSummaryofLoanCategoriesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-720f-bef1-9e7fc6a597c4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReceivablesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ParticipatingMortgageLoansTable_01a06d2f-41db-7b40-924d-68e164c843b4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ParticipatingMortgageLoansTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-720f-bef1-9e7fc6a597c4" xlink:to="loc_us-gaap_ParticipatingMortgageLoansTable_01a06d2f-41db-7b40-924d-68e164c843b4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_01a06d2f-41db-7fee-a852-84f95b67de2c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablePortfolioSegmentAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ParticipatingMortgageLoansTable_01a06d2f-41db-7b40-924d-68e164c843b4" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_01a06d2f-41db-7fee-a852-84f95b67de2c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-7403-ad04-869963824ddc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablePortfolioSegmentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_01a06d2f-41db-7fee-a852-84f95b67de2c" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-7403-ad04-869963824ddc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_CommercialAndIndustrialLoanMember_01a06d2f-41db-7a51-b495-ddfe27c13ac3" xlink:href="cass-20260930.xsd#cass_CommercialAndIndustrialLoanMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-7403-ad04-869963824ddc" xlink:to="loc_cass_CommercialAndIndustrialLoanMember_01a06d2f-41db-7a51-b495-ddfe27c13ac3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialRealEstateMember_01a06d2f-41db-789f-87c9-ac01d1801aa7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommercialRealEstateMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-7403-ad04-869963824ddc" xlink:to="loc_us-gaap_CommercialRealEstateMember_01a06d2f-41db-789f-87c9-ac01d1801aa7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_FaithBasedRealEstateMember_01a06d2f-41db-703d-9b04-03d1ed2139e8" xlink:href="cass-20260930.xsd#cass_FaithBasedRealEstateMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-7403-ad04-869963824ddc" xlink:to="loc_cass_FaithBasedRealEstateMember_01a06d2f-41db-703d-9b04-03d1ed2139e8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_OtherLoanMember_01a06d2f-41db-7b23-8c1a-92754d614de5" xlink:href="cass-20260930.xsd#cass_OtherLoanMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-7403-ad04-869963824ddc" xlink:to="loc_cass_OtherLoanMember_01a06d2f-41db-7b23-8c1a-92754d614de5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_01a06d2f-41db-7f42-87af-28c7c31f086a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ParticipatingMortgageLoansTable_01a06d2f-41db-7b40-924d-68e164c843b4" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_01a06d2f-41db-7f42-87af-28c7c31f086a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_01a06d2f-41db-7d36-9106-a9f02c37ad72" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_01a06d2f-41db-7f42-87af-28c7c31f086a" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_01a06d2f-41db-7d36-9106-a9f02c37ad72" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MortgagesMember_01a06d2f-41db-7c49-ac77-c16e5973528a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MortgagesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_01a06d2f-41db-7d36-9106-a9f02c37ad72" xlink:to="loc_us-gaap_MortgagesMember_01a06d2f-41db-7c49-ac77-c16e5973528a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionMember_01a06d2f-41db-7d2c-98a2-a7d4d5c6e469" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConstructionMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_01a06d2f-41db-7d36-9106-a9f02c37ad72" xlink:to="loc_us-gaap_ConstructionMember_01a06d2f-41db-7d2c-98a2-a7d4d5c6e469" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ParticipatingMortgageLoansLineItems_01a06d2f-41db-73d6-9432-5d9ccaf891ae" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ParticipatingMortgageLoansLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ParticipatingMortgageLoansTable_01a06d2f-41db-7b40-924d-68e164c843b4" xlink:to="loc_us-gaap_ParticipatingMortgageLoansLineItems_01a06d2f-41db-73d6-9432-5d9ccaf891ae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLossCurrent_01a06d2f-41db-7f3c-8f61-6261fbaee743" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLossCurrent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ParticipatingMortgageLoansLineItems_01a06d2f-41db-73d6-9432-5d9ccaf891ae" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLossCurrent_01a06d2f-41db-7f3c-8f61-6261fbaee743" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/LoansbyTypeNarrativeDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#LoansbyTypeNarrativeDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/LoansbyTypeNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-7952-a3d5-da449d0926e1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReceivablesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus_01a06d2f-41db-7421-9410-33f65b14bef1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-7952-a3d5-da449d0926e1" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus_01a06d2f-41db-7421-9410-33f65b14bef1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_AllowanceSpecificToNonAccrualLoans_01a06d2f-41db-71c2-a0b2-7374fbe94c4e" xlink:href="cass-20260930.xsd#cass_AllowanceSpecificToNonAccrualLoans"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-7952-a3d5-da449d0926e1" xlink:to="loc_cass_AllowanceSpecificToNonAccrualLoans_01a06d2f-41db-71c2-a0b2-7374fbe94c4e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_01a17efb-ebd8-7401-95c2-d44a7ff6161d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-7952-a3d5-da449d0926e1" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_01a17efb-ebd8-7401-95c2-d44a7ff6161d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/LoansbyTypeScheduleoftheAgingofLoansbyLoanCategoriesDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#LoansbyTypeScheduleoftheAgingofLoansbyLoanCategoriesDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/LoansbyTypeScheduleoftheAgingofLoansbyLoanCategoriesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-73d1-a79e-a73475f3e8e9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReceivablesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ParticipatingMortgageLoansTable_01a06d2f-41db-7ed2-bd5d-8f9726ca3356" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ParticipatingMortgageLoansTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-73d1-a79e-a73475f3e8e9" xlink:to="loc_us-gaap_ParticipatingMortgageLoansTable_01a06d2f-41db-7ed2-bd5d-8f9726ca3356" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_01a06d2f-41db-75f2-a0dc-5be86f537941" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablesPeriodPastDueAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ParticipatingMortgageLoansTable_01a06d2f-41db-7ed2-bd5d-8f9726ca3356" xlink:to="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_01a06d2f-41db-75f2-a0dc-5be86f537941" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_01a06d2f-41db-72c4-b6fb-3d1d9f583b4d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablesPeriodPastDueDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_01a06d2f-41db-75f2-a0dc-5be86f537941" xlink:to="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_01a06d2f-41db-72c4-b6fb-3d1d9f583b4d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialAssetNotPastDueMember_01a06d2f-41db-72a0-b455-64e1c0fcc5df" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialAssetNotPastDueMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_01a06d2f-41db-72c4-b6fb-3d1d9f583b4d" xlink:to="loc_us-gaap_FinancialAssetNotPastDueMember_01a06d2f-41db-72a0-b455-64e1c0fcc5df" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivables30To59DaysPastDueMember_01a06d2f-41db-7f68-bcbd-bed879e53e57" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivables30To59DaysPastDueMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_01a06d2f-41db-72c4-b6fb-3d1d9f583b4d" xlink:to="loc_us-gaap_FinancingReceivables30To59DaysPastDueMember_01a06d2f-41db-7f68-bcbd-bed879e53e57" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivables60To89DaysPastDueMember_01a06d2f-41db-7327-ad52-8660db4967c5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivables60To89DaysPastDueMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_01a06d2f-41db-72c4-b6fb-3d1d9f583b4d" xlink:to="loc_us-gaap_FinancingReceivables60To89DaysPastDueMember_01a06d2f-41db-7327-ad52-8660db4967c5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember_01a06d2f-41db-7918-86b5-2da5df262ff4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_01a06d2f-41db-72c4-b6fb-3d1d9f583b4d" xlink:to="loc_us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember_01a06d2f-41db-7918-86b5-2da5df262ff4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_01a06d2f-41db-7fd9-8111-a573dc557e11" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablePortfolioSegmentAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ParticipatingMortgageLoansTable_01a06d2f-41db-7ed2-bd5d-8f9726ca3356" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_01a06d2f-41db-7fd9-8111-a573dc557e11" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-7eb7-84ed-3526c9dbf8c7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablePortfolioSegmentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_01a06d2f-41db-7fd9-8111-a573dc557e11" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-7eb7-84ed-3526c9dbf8c7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_CommercialAndIndustrialLoanMember_01a06d2f-41db-7941-9c21-84ba42d03a01" xlink:href="cass-20260930.xsd#cass_CommercialAndIndustrialLoanMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-7eb7-84ed-3526c9dbf8c7" xlink:to="loc_cass_CommercialAndIndustrialLoanMember_01a06d2f-41db-7941-9c21-84ba42d03a01" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialRealEstateMember_01a06d2f-41db-7272-8ccd-8374e4106a92" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommercialRealEstateMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-7eb7-84ed-3526c9dbf8c7" xlink:to="loc_us-gaap_CommercialRealEstateMember_01a06d2f-41db-7272-8ccd-8374e4106a92" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_FaithBasedRealEstateMember_01a06d2f-41db-7738-9399-98f8349fef51" xlink:href="cass-20260930.xsd#cass_FaithBasedRealEstateMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-7eb7-84ed-3526c9dbf8c7" xlink:to="loc_cass_FaithBasedRealEstateMember_01a06d2f-41db-7738-9399-98f8349fef51" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_OtherLoanMember_01a06d2f-41db-7bc8-8654-86b6655760e5" xlink:href="cass-20260930.xsd#cass_OtherLoanMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-7eb7-84ed-3526c9dbf8c7" xlink:to="loc_cass_OtherLoanMember_01a06d2f-41db-7bc8-8654-86b6655760e5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_01a06d2f-41db-70b4-8bb1-a6522af27cae" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ParticipatingMortgageLoansTable_01a06d2f-41db-7ed2-bd5d-8f9726ca3356" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_01a06d2f-41db-70b4-8bb1-a6522af27cae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_01a06d2f-41db-7d39-aa3a-dd72dc7dc9d5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_01a06d2f-41db-70b4-8bb1-a6522af27cae" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_01a06d2f-41db-7d39-aa3a-dd72dc7dc9d5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MortgagesMember_01a06d2f-41db-7223-9552-0423d9fe1761" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MortgagesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_01a06d2f-41db-7d39-aa3a-dd72dc7dc9d5" xlink:to="loc_us-gaap_MortgagesMember_01a06d2f-41db-7223-9552-0423d9fe1761" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionMember_01a06d2f-41db-7aca-b543-266cda922bde" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConstructionMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_01a06d2f-41db-7d39-aa3a-dd72dc7dc9d5" xlink:to="loc_us-gaap_ConstructionMember_01a06d2f-41db-7aca-b543-266cda922bde" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ParticipatingMortgageLoansLineItems_01a06d2f-41db-79fb-a005-0f1776f7d9bf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ParticipatingMortgageLoansLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ParticipatingMortgageLoansTable_01a06d2f-41db-7ed2-bd5d-8f9726ca3356" xlink:to="loc_us-gaap_ParticipatingMortgageLoansLineItems_01a06d2f-41db-79fb-a005-0f1776f7d9bf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss_01a06d2f-41db-75d9-b81f-3fb04c4c8792" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ParticipatingMortgageLoansLineItems_01a06d2f-41db-79fb-a005-0f1776f7d9bf" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss_01a06d2f-41db-75d9-b81f-3fb04c4c8792" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestNonaccrual_01a06d2f-41db-7064-ab81-c2fd75be4d59" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestNonaccrual"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ParticipatingMortgageLoansLineItems_01a06d2f-41db-79fb-a005-0f1776f7d9bf" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestNonaccrual_01a06d2f-41db-7064-ab81-c2fd75be4d59" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/LoansbyTypeScheduleoftheCreditExposureoftheLoanPortfolioDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#LoansbyTypeScheduleoftheCreditExposureoftheLoanPortfolioDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/LoansbyTypeScheduleoftheCreditExposureoftheLoanPortfolioDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-7058-b8c2-f41ee573fac5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReceivablesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ParticipatingMortgageLoansTable_01a06d2f-41db-71bb-b099-198f2f470346" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ParticipatingMortgageLoansTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-7058-b8c2-f41ee573fac5" xlink:to="loc_us-gaap_ParticipatingMortgageLoansTable_01a06d2f-41db-71bb-b099-198f2f470346" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_01a06d2f-41db-7706-adb9-b2fc0a501564" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablePortfolioSegmentAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ParticipatingMortgageLoansTable_01a06d2f-41db-71bb-b099-198f2f470346" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_01a06d2f-41db-7706-adb9-b2fc0a501564" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-7b9b-bd43-63c025107422" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablePortfolioSegmentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_01a06d2f-41db-7706-adb9-b2fc0a501564" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-7b9b-bd43-63c025107422" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_CommercialAndIndustrialLoanMember_01a06d2f-41db-746c-bc31-9a09b49d68bd" xlink:href="cass-20260930.xsd#cass_CommercialAndIndustrialLoanMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-7b9b-bd43-63c025107422" xlink:to="loc_cass_CommercialAndIndustrialLoanMember_01a06d2f-41db-746c-bc31-9a09b49d68bd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialRealEstateMember_01a06d2f-41db-777b-b6d1-e781904bde92" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommercialRealEstateMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-7b9b-bd43-63c025107422" xlink:to="loc_us-gaap_CommercialRealEstateMember_01a06d2f-41db-777b-b6d1-e781904bde92" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_FaithBasedRealEstateMember_01a06d2f-41db-7fb3-b353-9f1733a0d8d6" xlink:href="cass-20260930.xsd#cass_FaithBasedRealEstateMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-7b9b-bd43-63c025107422" xlink:to="loc_cass_FaithBasedRealEstateMember_01a06d2f-41db-7fb3-b353-9f1733a0d8d6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_OtherLoanMember_01a06d2f-41db-70a1-986b-24645a2d8517" xlink:href="cass-20260930.xsd#cass_OtherLoanMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-7b9b-bd43-63c025107422" xlink:to="loc_cass_OtherLoanMember_01a06d2f-41db-70a1-986b-24645a2d8517" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_01a06d2f-41db-7af3-a13f-173cc11a2430" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ParticipatingMortgageLoansTable_01a06d2f-41db-71bb-b099-198f2f470346" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_01a06d2f-41db-7af3-a13f-173cc11a2430" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_01a06d2f-41db-7653-9c54-c277cdd2a904" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_01a06d2f-41db-7af3-a13f-173cc11a2430" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_01a06d2f-41db-7653-9c54-c277cdd2a904" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MortgagesMember_01a06d2f-41db-7353-9cce-d40d3e408f43" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MortgagesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_01a06d2f-41db-7653-9c54-c277cdd2a904" xlink:to="loc_us-gaap_MortgagesMember_01a06d2f-41db-7353-9cce-d40d3e408f43" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionMember_01a06d2f-41db-7dff-9775-eab203d0e75c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConstructionMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_01a06d2f-41db-7653-9c54-c277cdd2a904" xlink:to="loc_us-gaap_ConstructionMember_01a06d2f-41db-7dff-9775-eab203d0e75c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_CreditExposureOfLoanPortfolioAxis_01a06d2f-41db-760c-9833-c48075e40304" xlink:href="cass-20260930.xsd#cass_CreditExposureOfLoanPortfolioAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ParticipatingMortgageLoansTable_01a06d2f-41db-71bb-b099-198f2f470346" xlink:to="loc_cass_CreditExposureOfLoanPortfolioAxis_01a06d2f-41db-760c-9833-c48075e40304" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_CreditExposureOfLoanPortfolioDomain_01a06d2f-41db-79a6-a533-928fa1e889b3" xlink:href="cass-20260930.xsd#cass_CreditExposureOfLoanPortfolioDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cass_CreditExposureOfLoanPortfolioAxis_01a06d2f-41db-760c-9833-c48075e40304" xlink:to="loc_cass_CreditExposureOfLoanPortfolioDomain_01a06d2f-41db-79a6-a533-928fa1e889b3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_LoansSubjectToNormalMonitoringMember_01a06d2f-41db-7203-8dde-d30427051c60" xlink:href="cass-20260930.xsd#cass_LoansSubjectToNormalMonitoringMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cass_CreditExposureOfLoanPortfolioDomain_01a06d2f-41db-79a6-a533-928fa1e889b3" xlink:to="loc_cass_LoansSubjectToNormalMonitoringMember_01a06d2f-41db-7203-8dde-d30427051c60" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_PerformingLoansSubjectToSpecialMonitoringMember_01a06d2f-41db-7e58-81de-2f1a59f851c1" xlink:href="cass-20260930.xsd#cass_PerformingLoansSubjectToSpecialMonitoringMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cass_CreditExposureOfLoanPortfolioDomain_01a06d2f-41db-79a6-a533-928fa1e889b3" xlink:to="loc_cass_PerformingLoansSubjectToSpecialMonitoringMember_01a06d2f-41db-7e58-81de-2f1a59f851c1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_NonperformingLoansSubjectToSpecialMonitoringMember_01a06d2f-41db-7cf8-924b-180883c8e41a" xlink:href="cass-20260930.xsd#cass_NonperformingLoansSubjectToSpecialMonitoringMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cass_CreditExposureOfLoanPortfolioDomain_01a06d2f-41db-79a6-a533-928fa1e889b3" xlink:to="loc_cass_NonperformingLoansSubjectToSpecialMonitoringMember_01a06d2f-41db-7cf8-924b-180883c8e41a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ParticipatingMortgageLoansLineItems_01a06d2f-41db-731a-b354-d69b6f9209a0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ParticipatingMortgageLoansLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ParticipatingMortgageLoansTable_01a06d2f-41db-71bb-b099-198f2f470346" xlink:to="loc_us-gaap_ParticipatingMortgageLoansLineItems_01a06d2f-41db-731a-b354-d69b6f9209a0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLossCurrent_01a06d2f-41db-7f0e-aae9-c6b4b11ff59d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLossCurrent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ParticipatingMortgageLoansLineItems_01a06d2f-41db-731a-b354-d69b6f9209a0" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLossCurrent_01a06d2f-41db-7f0e-aae9-c6b4b11ff59d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/LoansbyTypeSummaryofACLbyCategoryDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#LoansbyTypeSummaryofACLbyCategoryDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/LoansbyTypeSummaryofACLbyCategoryDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-7c17-8e3f-9757726f5ba7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReceivablesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_01a06d2f-41db-78f1-b6a9-1e11f2375a84" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-7c17-8e3f-9757726f5ba7" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_01a06d2f-41db-78f1-b6a9-1e11f2375a84" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_01a06d2f-41db-74b3-86c4-92734a65a679" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_01a06d2f-41db-78f1-b6a9-1e11f2375a84" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_01a06d2f-41db-74b3-86c4-92734a65a679" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_01a06d2f-41db-7735-99fd-6544c02a671f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_01a06d2f-41db-74b3-86c4-92734a65a679" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_01a06d2f-41db-7735-99fd-6544c02a671f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_LoansExcludingUnfundedCommitmentsMember_01a06d2f-41db-7b5f-812c-c54895837007" xlink:href="cass-20260930.xsd#cass_LoansExcludingUnfundedCommitmentsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_01a06d2f-41db-7735-99fd-6544c02a671f" xlink:to="loc_cass_LoansExcludingUnfundedCommitmentsMember_01a06d2f-41db-7b5f-812c-c54895837007" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_01a06d2f-41db-7a9e-ae6c-99242d1d8505" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablePortfolioSegmentAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_01a06d2f-41db-78f1-b6a9-1e11f2375a84" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_01a06d2f-41db-7a9e-ae6c-99242d1d8505" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-75a9-b812-546f8312eade" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablePortfolioSegmentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_01a06d2f-41db-7a9e-ae6c-99242d1d8505" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-75a9-b812-546f8312eade" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_CAndIMember_01a06d2f-41db-7025-8510-f214469d0765" xlink:href="cass-20260930.xsd#cass_CAndIMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-75a9-b812-546f8312eade" xlink:to="loc_cass_CAndIMember_01a06d2f-41db-7025-8510-f214469d0765" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_CREMember_01a06d2f-41db-7ab0-9090-ad8f49a208d5" xlink:href="cass-20260930.xsd#cass_CREMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-75a9-b812-546f8312eade" xlink:to="loc_cass_CREMember_01a06d2f-41db-7ab0-9090-ad8f49a208d5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_FaithBasedCREMember_01a06d2f-41db-72b8-9100-3f8d07b0d0cf" xlink:href="cass-20260930.xsd#cass_FaithBasedCREMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-75a9-b812-546f8312eade" xlink:to="loc_cass_FaithBasedCREMember_01a06d2f-41db-72b8-9100-3f8d07b0d0cf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionMember_01a06d2f-41db-7198-8496-9c2e82170997" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConstructionMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-75a9-b812-546f8312eade" xlink:to="loc_us-gaap_ConstructionMember_01a06d2f-41db-7198-8496-9c2e82170997" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_01a06d2f-41db-72ea-9034-bf8ee52dc0e1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_01a06d2f-41db-78f1-b6a9-1e11f2375a84" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_01a06d2f-41db-72ea-9034-bf8ee52dc0e1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_01a06d2f-41db-773f-aca5-d5df94b45228" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_01a06d2f-41db-72ea-9034-bf8ee52dc0e1" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_01a06d2f-41db-773f-aca5-d5df94b45228" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest_01a06d2f-41db-7c76-a748-f718c26bb215" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_01a06d2f-41db-773f-aca5-d5df94b45228" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest_01a06d2f-41db-7c76-a748-f718c26bb215" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal_01a06d2f-41db-7d2c-9197-f2200fd452a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_01a06d2f-41db-773f-aca5-d5df94b45228" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal_01a06d2f-41db-7d2c-9197-f2200fd452a5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_01a17f11-4219-7d97-b8fe-19839dcd597a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_01a06d2f-41db-773f-aca5-d5df94b45228" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_01a17f11-4219-7d97-b8fe-19839dcd597a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest_01a06d2f-41db-791a-b741-46f1b60cc539" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_01a06d2f-41db-773f-aca5-d5df94b45228" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest_01a06d2f-41db-791a-b741-46f1b60cc539" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/LoansbyTypeDetailsTDMLoans" xlink:type="simple" xlink:href="cass-20260930.xsd#LoansbyTypeDetailsTDMLoans"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/LoansbyTypeDetailsTDMLoans" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-78d2-aa9a-3408acc31bfc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReceivablesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_01a06d2f-41db-7335-80c7-79dab1442e8d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfFinancingReceivablesPastDueTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-78d2-aa9a-3408acc31bfc" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_01a06d2f-41db-7335-80c7-79dab1442e8d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_01a06d2f-41db-7c7c-8bbe-ef9bb2fc2752" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablePortfolioSegmentAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_01a06d2f-41db-7335-80c7-79dab1442e8d" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_01a06d2f-41db-7c7c-8bbe-ef9bb2fc2752" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-7a15-ab93-837ff005db3b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablePortfolioSegmentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_01a06d2f-41db-7c7c-8bbe-ef9bb2fc2752" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-7a15-ab93-837ff005db3b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_CommercialAndIndustrialLoanMember_01a06d2f-41db-7d30-bae1-7748cfe69fb0" xlink:href="cass-20260930.xsd#cass_CommercialAndIndustrialLoanMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-7a15-ab93-837ff005db3b" xlink:to="loc_cass_CommercialAndIndustrialLoanMember_01a06d2f-41db-7d30-bae1-7748cfe69fb0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoanRestructuringModificationAxis_01a06d2f-41db-73bd-95b8-20c691477b85" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LoanRestructuringModificationAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_01a06d2f-41db-7335-80c7-79dab1442e8d" xlink:to="loc_us-gaap_LoanRestructuringModificationAxis_01a06d2f-41db-73bd-95b8-20c691477b85" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoanRestructuringModificationDomain_01a06d2f-41db-7818-aa5b-d93a78a717aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LoanRestructuringModificationDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LoanRestructuringModificationAxis_01a06d2f-41db-73bd-95b8-20c691477b85" xlink:to="loc_us-gaap_LoanRestructuringModificationDomain_01a06d2f-41db-7818-aa5b-d93a78a717aa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_01a06d2f-41db-7c6a-89c1-f4380a044851" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_01a06d2f-41db-7335-80c7-79dab1442e8d" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_01a06d2f-41db-7c6a-89c1-f4380a044851" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_FinancingReceivableExcludingAccruedInterestModifiedInPeriodAmount_01a06d2f-41db-7a93-af16-b459717ef36c" xlink:href="cass-20260930.xsd#cass_FinancingReceivableExcludingAccruedInterestModifiedInPeriodAmount"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_01a06d2f-41db-7c6a-89c1-f4380a044851" xlink:to="loc_cass_FinancingReceivableExcludingAccruedInterestModifiedInPeriodAmount_01a06d2f-41db-7a93-af16-b459717ef36c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/LoansbyTypeDetailsTDRs" xlink:type="simple" xlink:href="cass-20260930.xsd#LoansbyTypeDetailsTDRs"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/LoansbyTypeDetailsTDRs" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-7b83-a73f-43e419279ed2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReceivablesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_01a06d2f-41db-786f-9003-2f191c71baa9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfFinancingReceivablesPastDueTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesAbstract_01a06d2f-41db-7b83-a73f-43e419279ed2" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_01a06d2f-41db-786f-9003-2f191c71baa9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_01a06d2f-41db-792c-8d8d-2ed72ac9a6dd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablesPeriodPastDueAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_01a06d2f-41db-786f-9003-2f191c71baa9" xlink:to="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_01a06d2f-41db-792c-8d8d-2ed72ac9a6dd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_01a06d2f-41db-7aba-a77b-8442d66c25ee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablesPeriodPastDueDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_01a06d2f-41db-792c-8d8d-2ed72ac9a6dd" xlink:to="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_01a06d2f-41db-7aba-a77b-8442d66c25ee" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialAssetNotPastDueMember_01a06d2f-41db-7509-81ea-dd4a18bb1718" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialAssetNotPastDueMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_01a06d2f-41db-7aba-a77b-8442d66c25ee" xlink:to="loc_us-gaap_FinancialAssetNotPastDueMember_01a06d2f-41db-7509-81ea-dd4a18bb1718" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivables30To59DaysPastDueMember_01a06d2f-41db-78fb-8903-38598aa5f0de" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivables30To59DaysPastDueMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_01a06d2f-41db-7aba-a77b-8442d66c25ee" xlink:to="loc_us-gaap_FinancingReceivables30To59DaysPastDueMember_01a06d2f-41db-78fb-8903-38598aa5f0de" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivables60To89DaysPastDueMember_01a06d2f-41db-7e79-8f96-40e532be028d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivables60To89DaysPastDueMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_01a06d2f-41db-7aba-a77b-8442d66c25ee" xlink:to="loc_us-gaap_FinancingReceivables60To89DaysPastDueMember_01a06d2f-41db-7e79-8f96-40e532be028d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember_01a06d2f-41db-7aca-a1b9-e212ffc4833b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_01a06d2f-41db-7aba-a77b-8442d66c25ee" xlink:to="loc_us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember_01a06d2f-41db-7aca-a1b9-e212ffc4833b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_01a06d2f-41db-7c4c-8f76-84adb28b636d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablePortfolioSegmentAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_01a06d2f-41db-786f-9003-2f191c71baa9" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_01a06d2f-41db-7c4c-8f76-84adb28b636d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-76c9-85cd-d8e066cb02f4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablePortfolioSegmentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_01a06d2f-41db-7c4c-8f76-84adb28b636d" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-76c9-85cd-d8e066cb02f4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_CommercialAndIndustrialLoanMember_01a06d2f-41db-791f-9e36-2d351ec2cbcc" xlink:href="cass-20260930.xsd#cass_CommercialAndIndustrialLoanMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_01a06d2f-41db-76c9-85cd-d8e066cb02f4" xlink:to="loc_cass_CommercialAndIndustrialLoanMember_01a06d2f-41db-791f-9e36-2d351ec2cbcc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_01a06d2f-41db-7d11-8556-65e4fb752976" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_01a06d2f-41db-786f-9003-2f191c71baa9" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_01a06d2f-41db-7d11-8556-65e4fb752976" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_FinancingReceivableExcludingAccruedInterestModifiedAfter12Months_01a06d2f-41db-7e44-99c4-ad826ac049df" xlink:href="cass-20260930.xsd#cass_FinancingReceivableExcludingAccruedInterestModifiedAfter12Months"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_01a06d2f-41db-7d11-8556-65e4fb752976" xlink:to="loc_cass_FinancingReceivableExcludingAccruedInterestModifiedAfter12Months_01a06d2f-41db-7e44-99c4-ad826ac049df" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/CommitmentsandContingenciesDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#CommitmentsandContingenciesDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/CommitmentsandContingenciesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_01a06d2f-41db-7b0d-bf7d-6bc6237ec434" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesTable_01a06d2f-41db-7277-9d24-1c69a105a041" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingenciesTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_01a06d2f-41db-7b0d-bf7d-6bc6237ec434" xlink:to="loc_us-gaap_LossContingenciesTable_01a06d2f-41db-7277-9d24-1c69a105a041" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_01a06d2f-41db-71d5-b468-6104cf3e95a4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingenciesByNatureOfContingencyAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesTable_01a06d2f-41db-7277-9d24-1c69a105a041" xlink:to="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_01a06d2f-41db-71d5-b468-6104cf3e95a4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNatureDomain_01a06d2f-41db-7517-abbf-3e158cd409ca" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingencyNatureDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_01a06d2f-41db-71d5-b468-6104cf3e95a4" xlink:to="loc_us-gaap_LossContingencyNatureDomain_01a06d2f-41db-7517-abbf-3e158cd409ca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialStandbyLetterOfCreditMember_01a06d2f-41db-71d3-911a-4f56690f0b2a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialStandbyLetterOfCreditMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingencyNatureDomain_01a06d2f-41db-7517-abbf-3e158cd409ca" xlink:to="loc_us-gaap_FinancialStandbyLetterOfCreditMember_01a06d2f-41db-71d3-911a-4f56690f0b2a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_StandByLettersOfCreditMemberMember_01a06d2f-41db-71cf-927f-a8e4c4bae0c9" xlink:href="cass-20260930.xsd#cass_StandByLettersOfCreditMemberMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingencyNatureDomain_01a06d2f-41db-7517-abbf-3e158cd409ca" xlink:to="loc_cass_StandByLettersOfCreditMemberMember_01a06d2f-41db-71cf-927f-a8e4c4bae0c9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesLineItems_01a06d2f-41db-704d-b646-56857acbdbd9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingenciesLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesTable_01a06d2f-41db-7277-9d24-1c69a105a041" xlink:to="loc_us-gaap_LossContingenciesLineItems_01a06d2f-41db-704d-b646-56857acbdbd9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments_01a06d2f-41db-74fa-b192-79989a5992b2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_01a06d2f-41db-704d-b646-56857acbdbd9" xlink:to="loc_us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments_01a06d2f-41db-74fa-b192-79989a5992b2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnusedCommitmentsToExtendCredit_01a06d2f-41db-7ea6-9eb5-657fb5460eb5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnusedCommitmentsToExtendCredit"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_01a06d2f-41db-704d-b646-56857acbdbd9" xlink:to="loc_us-gaap_UnusedCommitmentsToExtendCredit_01a06d2f-41db-7ea6-9eb5-657fb5460eb5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount_01a06d2f-41db-76e4-941d-99029a418c6d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LettersOfCreditOutstandingAmount"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_01a06d2f-41db-704d-b646-56857acbdbd9" xlink:to="loc_us-gaap_LettersOfCreditOutstandingAmount_01a06d2f-41db-76e4-941d-99029a418c6d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_InvoiceReimbursement_01a06d2f-41db-74d3-ba63-61d722131591" xlink:href="cass-20260930.xsd#cass_InvoiceReimbursement"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_01a06d2f-41db-704d-b646-56857acbdbd9" xlink:to="loc_cass_InvoiceReimbursement_01a06d2f-41db-74d3-ba63-61d722131591" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesPolicyTextBlock_01a06d2f-41db-776d-9363-461030087d18" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReceivablesPolicyTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_01a06d2f-41db-7b0d-bf7d-6bc6237ec434" xlink:to="loc_us-gaap_ReceivablesPolicyTextBlock_01a06d2f-41db-776d-9363-461030087d18" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/StockBasedCompensationNarrativeDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#StockBasedCompensationNarrativeDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/StockBasedCompensationNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_01a06d2f-41db-7033-8aeb-546dbc3c42c1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_01a06d2f-41db-7b23-8109-fb8cb09ca6e0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_01a06d2f-41db-7033-8aeb-546dbc3c42c1" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_01a06d2f-41db-7b23-8109-fb8cb09ca6e0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_01a06d2f-41db-7b2f-9163-eaf52f82a8b6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_01a06d2f-41db-7b23-8109-fb8cb09ca6e0" xlink:to="loc_us-gaap_AwardTypeAxis_01a06d2f-41db-7b2f-9163-eaf52f82a8b6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a06d2f-41db-72fe-b650-f9ee778d4723" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_01a06d2f-41db-7b2f-9163-eaf52f82a8b6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a06d2f-41db-72fe-b650-f9ee778d4723" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockMember_01a06d2f-41db-770a-9c1a-7e95632c2b72" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedStockMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a06d2f-41db-72fe-b650-f9ee778d4723" xlink:to="loc_us-gaap_RestrictedStockMember_01a06d2f-41db-770a-9c1a-7e95632c2b72" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PerformanceSharesMember_01a06d2f-41db-7554-a086-a2eb55708f1f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PerformanceSharesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a06d2f-41db-72fe-b650-f9ee778d4723" xlink:to="loc_us-gaap_PerformanceSharesMember_01a06d2f-41db-7554-a086-a2eb55708f1f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_01a06d2f-41db-7576-af05-c6deb481da17" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_01a06d2f-41db-7b23-8109-fb8cb09ca6e0" xlink:to="loc_srt_RangeAxis_01a06d2f-41db-7576-af05-c6deb481da17" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_01a06d2f-41db-7393-86aa-3a8e86a8584b" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_01a06d2f-41db-7576-af05-c6deb481da17" xlink:to="loc_srt_RangeMember_01a06d2f-41db-7393-86aa-3a8e86a8584b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_01a06d2f-41db-7bb3-b06d-a45e3cd22aa2" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_01a06d2f-41db-7393-86aa-3a8e86a8584b" xlink:to="loc_srt_MinimumMember_01a06d2f-41db-7bb3-b06d-a45e3cd22aa2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_01a06d2f-41db-7b21-8e2b-bb51f25e2f97" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_01a06d2f-41db-7393-86aa-3a8e86a8584b" xlink:to="loc_srt_MaximumMember_01a06d2f-41db-7b21-8e2b-bb51f25e2f97" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_01a06d2f-41db-780f-810e-7ad0097dc996" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PlanNameAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_01a06d2f-41db-7b23-8109-fb8cb09ca6e0" xlink:to="loc_us-gaap_PlanNameAxis_01a06d2f-41db-780f-810e-7ad0097dc996" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_01a06d2f-41db-7267-8e7c-293d12999e90" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PlanNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameAxis_01a06d2f-41db-780f-810e-7ad0097dc996" xlink:to="loc_us-gaap_PlanNameDomain_01a06d2f-41db-7267-8e7c-293d12999e90" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_OmnibusPlanMember_01a06d2f-41db-7e5a-a91f-2be4b9daa086" xlink:href="cass-20260930.xsd#cass_OmnibusPlanMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameDomain_01a06d2f-41db-7267-8e7c-293d12999e90" xlink:to="loc_cass_OmnibusPlanMember_01a06d2f-41db-7e5a-a91f-2be4b9daa086" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GranteeStatusAxis_01a06d2f-41db-7950-8ae2-1bd2a535d40b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GranteeStatusAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_01a06d2f-41db-7b23-8109-fb8cb09ca6e0" xlink:to="loc_us-gaap_GranteeStatusAxis_01a06d2f-41db-7950-8ae2-1bd2a535d40b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GranteeStatusDomain_01a06d2f-41db-7276-8358-d33810763403" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GranteeStatusDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GranteeStatusAxis_01a06d2f-41db-7950-8ae2-1bd2a535d40b" xlink:to="loc_us-gaap_GranteeStatusDomain_01a06d2f-41db-7276-8358-d33810763403" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedPaymentArrangementEmployeeMember_01a06d2f-41db-7022-bc62-60611d8c1fab" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedPaymentArrangementEmployeeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GranteeStatusDomain_01a06d2f-41db-7276-8358-d33810763403" xlink:to="loc_us-gaap_ShareBasedPaymentArrangementEmployeeMember_01a06d2f-41db-7022-bc62-60611d8c1fab" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedPaymentArrangementNonemployeeMember_01a06d2f-41db-757c-9b97-7dc54107fa91" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedPaymentArrangementNonemployeeMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GranteeStatusDomain_01a06d2f-41db-7276-8358-d33810763403" xlink:to="loc_us-gaap_ShareBasedPaymentArrangementNonemployeeMember_01a06d2f-41db-757c-9b97-7dc54107fa91" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_01a06d2f-41db-725e-b2cc-15dd15fa2351" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_01a06d2f-41db-7b23-8109-fb8cb09ca6e0" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_01a06d2f-41db-725e-b2cc-15dd15fa2351" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_01a06d2f-41db-7ee9-9831-a47e133dcf5f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_01a06d2f-41db-725e-b2cc-15dd15fa2351" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_01a06d2f-41db-7ee9-9831-a47e133dcf5f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_01a06d2f-41db-7ad1-9110-bfad74e1231f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensation"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_01a06d2f-41db-725e-b2cc-15dd15fa2351" xlink:to="loc_us-gaap_ShareBasedCompensation_01a06d2f-41db-7ad1-9110-bfad74e1231f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_01a06d2f-41db-7cc2-abf4-7bebe82de65d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_01a06d2f-41db-725e-b2cc-15dd15fa2351" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_01a06d2f-41db-7cc2-abf4-7bebe82de65d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_01a06d2f-41db-7a1b-a2e3-9d3f2cf29d53" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_01a06d2f-41db-725e-b2cc-15dd15fa2351" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_01a06d2f-41db-7a1b-a2e3-9d3f2cf29d53" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_01a06d2f-41db-7516-8276-3a09068bc99e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_01a06d2f-41db-725e-b2cc-15dd15fa2351" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_01a06d2f-41db-7516-8276-3a09068bc99e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_PercentageOfTargetOpportunityForAwardsToVest_01a06d2f-41db-757e-82d8-4346aa76b5af" xlink:href="cass-20260930.xsd#cass_PercentageOfTargetOpportunityForAwardsToVest"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_01a06d2f-41db-725e-b2cc-15dd15fa2351" xlink:to="loc_cass_PercentageOfTargetOpportunityForAwardsToVest_01a06d2f-41db-757e-82d8-4346aa76b5af" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod_01a06d2f-41db-7d9b-ab60-9306d4e39257" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_01a06d2f-41db-725e-b2cc-15dd15fa2351" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod_01a06d2f-41db-7d9b-ab60-9306d4e39257" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_01a06d2f-41db-795b-a8d1-deded3fc0b85" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_01a06d2f-41db-725e-b2cc-15dd15fa2351" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_01a06d2f-41db-795b-a8d1-deded3fc0b85" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/StockBasedCompensationSummaryofRestrictedStockActivityDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#StockBasedCompensationSummaryofRestrictedStockActivityDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/StockBasedCompensationSummaryofRestrictedStockActivityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_01a06d2f-41db-7f47-8c5e-a29baee38e90" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_01a06d2f-41db-7cb0-b927-3bbcd94d4b7d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_01a06d2f-41db-7f47-8c5e-a29baee38e90" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_01a06d2f-41db-7cb0-b927-3bbcd94d4b7d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_01a06d2f-41db-7c52-8cab-80f31189aaed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_01a06d2f-41db-7cb0-b927-3bbcd94d4b7d" xlink:to="loc_us-gaap_AwardTypeAxis_01a06d2f-41db-7c52-8cab-80f31189aaed" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a06d2f-41db-7dcc-93c8-ea7da22aec9f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_01a06d2f-41db-7c52-8cab-80f31189aaed" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a06d2f-41db-7dcc-93c8-ea7da22aec9f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockMember_01a06d2f-41db-73f7-aa00-bc2b6580c65e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedStockMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a06d2f-41db-7dcc-93c8-ea7da22aec9f" xlink:to="loc_us-gaap_RestrictedStockMember_01a06d2f-41db-73f7-aa00-bc2b6580c65e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_01a06d2f-41db-74e1-b6a7-b963f934281c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_01a06d2f-41db-7cb0-b927-3bbcd94d4b7d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_01a06d2f-41db-74e1-b6a7-b963f934281c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_01a06d2f-41db-7393-b9c3-f991a5f15eb3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_01a06d2f-41db-74e1-b6a7-b963f934281c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_01a06d2f-41db-7393-b9c3-f991a5f15eb3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_01a06d2f-41db-7093-bced-ab64a1224717" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_01a06d2f-41db-7393-b9c3-f991a5f15eb3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_01a06d2f-41db-7093-bced-ab64a1224717" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_01a06d2f-41db-7482-81f0-76878ac95de3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_01a06d2f-41db-7393-b9c3-f991a5f15eb3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_01a06d2f-41db-7482-81f0-76878ac95de3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_01a06d2f-41db-7bd1-9113-80946b959cec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_01a06d2f-41db-7393-b9c3-f991a5f15eb3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_01a06d2f-41db-7bd1-9113-80946b959cec" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_01a06d2f-41db-763d-83fb-d488381e2373" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_01a06d2f-41db-7393-b9c3-f991a5f15eb3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_01a06d2f-41db-763d-83fb-d488381e2373" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_01a06d2f-41db-73c9-89e3-d20a10407b39" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_01a06d2f-41db-7393-b9c3-f991a5f15eb3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_01a06d2f-41db-73c9-89e3-d20a10407b39" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_01a06d2f-41db-75fd-b61c-4f273cc555e6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_01a06d2f-41db-74e1-b6a7-b963f934281c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_01a06d2f-41db-75fd-b61c-4f273cc555e6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_01a06d2f-41db-7912-946d-c50df2636d31" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_01a06d2f-41db-75fd-b61c-4f273cc555e6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_01a06d2f-41db-7912-946d-c50df2636d31" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_01a06d2f-41db-78bb-84cb-819537fb6e08" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_01a06d2f-41db-75fd-b61c-4f273cc555e6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_01a06d2f-41db-78bb-84cb-819537fb6e08" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_01a06d2f-41db-7797-bac3-060c68b322f7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_01a06d2f-41db-75fd-b61c-4f273cc555e6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_01a06d2f-41db-7797-bac3-060c68b322f7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_01a06d2f-41db-7146-90c1-a8bf31d48d71" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_01a06d2f-41db-75fd-b61c-4f273cc555e6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_01a06d2f-41db-7146-90c1-a8bf31d48d71" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_01a06d2f-41db-748b-8dc4-a600e75d4cca" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_01a06d2f-41db-75fd-b61c-4f273cc555e6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_01a06d2f-41db-748b-8dc4-a600e75d4cca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/StockBasedCompensationSummaryofPBRSActivityDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#StockBasedCompensationSummaryofPBRSActivityDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/StockBasedCompensationSummaryofPBRSActivityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_01a06d2f-41db-78e9-b656-b9581f7ede36" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_01a06d2f-41db-7e4f-a5f0-b1a2e74fa7fc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_01a06d2f-41db-78e9-b656-b9581f7ede36" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_01a06d2f-41db-7e4f-a5f0-b1a2e74fa7fc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_01a06d2f-41db-79ed-a779-c99c83c97710" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_01a06d2f-41db-7e4f-a5f0-b1a2e74fa7fc" xlink:to="loc_us-gaap_AwardTypeAxis_01a06d2f-41db-79ed-a779-c99c83c97710" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a06d2f-41db-7646-888a-89ed65bfd952" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_01a06d2f-41db-79ed-a779-c99c83c97710" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a06d2f-41db-7646-888a-89ed65bfd952" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PerformanceSharesMember_01a06d2f-41db-7517-a813-27f1422c195c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PerformanceSharesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a06d2f-41db-7646-888a-89ed65bfd952" xlink:to="loc_us-gaap_PerformanceSharesMember_01a06d2f-41db-7517-a813-27f1422c195c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_01a06d2f-41db-7602-ac08-c7c285ce5e85" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_01a06d2f-41db-7e4f-a5f0-b1a2e74fa7fc" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_01a06d2f-41db-7602-ac08-c7c285ce5e85" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_01a06d2f-41db-7919-8d62-ba8598cc7479" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_01a06d2f-41db-7602-ac08-c7c285ce5e85" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_01a06d2f-41db-7919-8d62-ba8598cc7479" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_01a06d2f-41db-7bb0-a15d-2a07121c1f26" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_01a06d2f-41db-7919-8d62-ba8598cc7479" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_01a06d2f-41db-7bb0-a15d-2a07121c1f26" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_01a06d2f-41db-75a3-a4dd-c498dacbe84b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_01a06d2f-41db-7919-8d62-ba8598cc7479" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_01a06d2f-41db-75a3-a4dd-c498dacbe84b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_01a06d2f-41db-7081-8646-ef21be3d2900" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_01a06d2f-41db-7919-8d62-ba8598cc7479" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_01a06d2f-41db-7081-8646-ef21be3d2900" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_01a06d2f-41db-74db-bb72-238d3c19e459" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_01a06d2f-41db-7919-8d62-ba8598cc7479" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_01a06d2f-41db-74db-bb72-238d3c19e459" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_01a06d2f-41db-7bec-a27e-c8f5f8e089fa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_01a06d2f-41db-7919-8d62-ba8598cc7479" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_01a06d2f-41db-7bec-a27e-c8f5f8e089fa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_01a06d2f-41db-7cec-b7b6-8baf794854d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_01a06d2f-41db-7602-ac08-c7c285ce5e85" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_01a06d2f-41db-7cec-b7b6-8baf794854d6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_01a06d2f-41db-79b5-a7c9-5b511ccb267c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_01a06d2f-41db-7cec-b7b6-8baf794854d6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_01a06d2f-41db-79b5-a7c9-5b511ccb267c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_01a06d2f-41db-7952-b7b3-f81b937b67fe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_01a06d2f-41db-7cec-b7b6-8baf794854d6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_01a06d2f-41db-7952-b7b3-f81b937b67fe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_01a06d2f-41db-7fc2-82e4-1b983ec2a096" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_01a06d2f-41db-7cec-b7b6-8baf794854d6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_01a06d2f-41db-7fc2-82e4-1b983ec2a096" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_01a06d2f-41db-74e2-b6a3-61d80eee8bd3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_01a06d2f-41db-7cec-b7b6-8baf794854d6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_01a06d2f-41db-74e2-b6a3-61d80eee8bd3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_01a06d2f-41db-7ccf-821a-0b83f80cfb8c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_01a06d2f-41db-7cec-b7b6-8baf794854d6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_01a06d2f-41db-7ccf-821a-0b83f80cfb8c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/DefinedPensionPlansNarrativeDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#DefinedPensionPlansNarrativeDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/DefinedPensionPlansNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_01a06d2f-41db-7549-8ff0-e989f2913ef9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_01a06d2f-41db-77ee-9e0e-b68cacca2a3a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_01a06d2f-41db-7549-8ff0-e989f2913ef9" xlink:to="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_01a06d2f-41db-77ee-9e0e-b68cacca2a3a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanTypeAxis_01a06d2f-41db-7abc-ad38-dc1593954a83" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetirementPlanTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_01a06d2f-41db-77ee-9e0e-b68cacca2a3a" xlink:to="loc_us-gaap_RetirementPlanTypeAxis_01a06d2f-41db-7abc-ad38-dc1593954a83" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanTypeDomain_01a06d2f-41db-76e2-8a15-94534614c2cd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetirementPlanTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RetirementPlanTypeAxis_01a06d2f-41db-7abc-ad38-dc1593954a83" xlink:to="loc_us-gaap_RetirementPlanTypeDomain_01a06d2f-41db-76e2-8a15-94534614c2cd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionPlansDefinedBenefitMember_01a06d2f-41db-72e8-9e2f-cb0ee3d0ce68" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PensionPlansDefinedBenefitMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RetirementPlanTypeDomain_01a06d2f-41db-76e2-8a15-94534614c2cd" xlink:to="loc_us-gaap_PensionPlansDefinedBenefitMember_01a06d2f-41db-72e8-9e2f-cb0ee3d0ce68" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember_01a06d2f-41db-73a0-9412-ac80c65f3a6a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RetirementPlanTypeDomain_01a06d2f-41db-76e2-8a15-94534614c2cd" xlink:to="loc_us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember_01a06d2f-41db-73a0-9412-ac80c65f3a6a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_01a06d2f-41db-7f0c-9742-54679b2ceadd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_01a06d2f-41db-77ee-9e0e-b68cacca2a3a" xlink:to="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_01a06d2f-41db-7f0c-9742-54679b2ceadd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_01a06d2f-41db-792c-b997-2dda3fb2ae25" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_01a06d2f-41db-7f0c-9742-54679b2ceadd" xlink:to="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_01a06d2f-41db-792c-b997-2dda3fb2ae25" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_01a06d2f-41db-7dcb-a45b-40d7cf0d8a74" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_01a06d2f-41db-7f0c-9742-54679b2ceadd" xlink:to="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_01a06d2f-41db-7dcb-a45b-40d7cf0d8a74" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleRealizedGain_01a06d2f-41db-79dc-9cf0-b1bac1f655f3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleRealizedGain"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_01a06d2f-41db-7f0c-9742-54679b2ceadd" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleRealizedGain_01a06d2f-41db-79dc-9cf0-b1bac1f655f3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/DefinedPensionPlansScheduleofNetPeriodicPensionCostsDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#DefinedPensionPlansScheduleofNetPeriodicPensionCostsDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/DefinedPensionPlansScheduleofNetPeriodicPensionCostsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_01a06d2f-41db-7f86-8126-eac7cd43f381" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_01a06d2f-41db-7a6f-ab08-f0dd45e28547" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_01a06d2f-41db-7f86-8126-eac7cd43f381" xlink:to="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_01a06d2f-41db-7a6f-ab08-f0dd45e28547" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanTypeAxis_01a06d2f-41db-7429-b790-a87d0368e3a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetirementPlanTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_01a06d2f-41db-7a6f-ab08-f0dd45e28547" xlink:to="loc_us-gaap_RetirementPlanTypeAxis_01a06d2f-41db-7429-b790-a87d0368e3a5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanTypeDomain_01a06d2f-41db-7cc8-bd44-490f3152114f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetirementPlanTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RetirementPlanTypeAxis_01a06d2f-41db-7429-b790-a87d0368e3a5" xlink:to="loc_us-gaap_RetirementPlanTypeDomain_01a06d2f-41db-7cc8-bd44-490f3152114f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionPlansDefinedBenefitMember_01a06d2f-41db-7d52-85dc-885e2dfc5c1a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PensionPlansDefinedBenefitMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RetirementPlanTypeDomain_01a06d2f-41db-7cc8-bd44-490f3152114f" xlink:to="loc_us-gaap_PensionPlansDefinedBenefitMember_01a06d2f-41db-7d52-85dc-885e2dfc5c1a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember_01a06d2f-41db-7dd1-a55b-3ba6db29fb66" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RetirementPlanTypeDomain_01a06d2f-41db-7cc8-bd44-490f3152114f" xlink:to="loc_us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember_01a06d2f-41db-7dd1-a55b-3ba6db29fb66" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_01a06d2f-41db-7325-a383-d9d5fa747f36" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_StatementScenarioAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_01a06d2f-41db-7a6f-ab08-f0dd45e28547" xlink:to="loc_srt_StatementScenarioAxis_01a06d2f-41db-7325-a383-d9d5fa747f36" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_01a06d2f-41db-7467-b2dc-d248ca76e8ae" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_StatementScenarioAxis_01a06d2f-41db-7325-a383-d9d5fa747f36" xlink:to="loc_srt_ScenarioUnspecifiedDomain_01a06d2f-41db-7467-b2dc-d248ca76e8ae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember_01a06d2f-41db-78a5-bb9d-12942f0eb51d" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ScenarioForecastMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ScenarioUnspecifiedDomain_01a06d2f-41db-7467-b2dc-d248ca76e8ae" xlink:to="loc_srt_ScenarioForecastMember_01a06d2f-41db-78a5-bb9d-12942f0eb51d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_01a06d2f-41db-785f-b230-90ca20b1db51" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_01a06d2f-41db-7a6f-ab08-f0dd45e28547" xlink:to="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_01a06d2f-41db-785f-b230-90ca20b1db51" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_01a06d2f-41db-7b1e-938d-ff38688525b3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanInterestCost"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_01a06d2f-41db-785f-b230-90ca20b1db51" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_01a06d2f-41db-7b1e-938d-ff38688525b3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_01a06d2f-41db-7cd0-a65a-4f1cf7372e71" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_01a06d2f-41db-785f-b230-90ca20b1db51" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_01a06d2f-41db-7cd0-a65a-4f1cf7372e71" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_01a06d2f-41db-7dc7-8658-f6c806c8e5f2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_01a06d2f-41db-785f-b230-90ca20b1db51" xlink:to="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_01a06d2f-41db-7dc7-8658-f6c806c8e5f2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/IncomeTaxesDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#IncomeTaxesDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/IncomeTaxesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_01a06d2f-41db-7eb7-8450-407e194a9463" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_01a06d2f-41db-7010-98d4-0d4c6fcca358" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_01a06d2f-41db-7eb7-8450-407e194a9463" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_01a06d2f-41db-7010-98d4-0d4c6fcca358" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/InvestmentinSecuritiesScheduleofInvestmentSecuritiesDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#InvestmentinSecuritiesScheduleofInvestmentSecuritiesDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/InvestmentinSecuritiesScheduleofInvestmentSecuritiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_01a06d2f-41db-72b7-9285-c155734ffd1b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketableSecuritiesTable_01a06d2f-41db-750d-bfb4-548157c4c8f2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MarketableSecuritiesTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_01a06d2f-41db-72b7-9285-c155734ffd1b" xlink:to="loc_us-gaap_MarketableSecuritiesTable_01a06d2f-41db-750d-bfb4-548157c4c8f2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_01a06d2f-41db-77f2-a391-b68371e44340" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesTable_01a06d2f-41db-750d-bfb4-548157c4c8f2" xlink:to="loc_us-gaap_FinancialInstrumentAxis_01a06d2f-41db-77f2-a391-b68371e44340" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01a06d2f-41db-7b55-8832-338273ce5a35" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentAxis_01a06d2f-41db-77f2-a391-b68371e44340" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01a06d2f-41db-7b55-8832-338273ce5a35" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USStatesAndPoliticalSubdivisionsMember_01a06d2f-41db-7fcb-ae31-33ceb20a111c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_USStatesAndPoliticalSubdivisionsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01a06d2f-41db-7b55-8832-338273ce5a35" xlink:to="loc_us-gaap_USStatesAndPoliticalSubdivisionsMember_01a06d2f-41db-7fcb-ae31-33ceb20a111c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember_01a06d2f-41db-7aa8-adcc-575b3d211861" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01a06d2f-41db-7b55-8832-338273ce5a35" xlink:to="loc_us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember_01a06d2f-41db-7aa8-adcc-575b3d211861" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateDebtSecuritiesMember_01a06d2f-41db-7d14-8586-937e85d064cd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CorporateDebtSecuritiesMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01a06d2f-41db-7b55-8832-338273ce5a35" xlink:to="loc_us-gaap_CorporateDebtSecuritiesMember_01a06d2f-41db-7d14-8586-937e85d064cd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USTreasurySecuritiesMember_01a06d2f-41db-7e69-bd2e-9c93220996da" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_USTreasurySecuritiesMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01a06d2f-41db-7b55-8832-338273ce5a35" xlink:to="loc_us-gaap_USTreasurySecuritiesMember_01a06d2f-41db-7e69-bd2e-9c93220996da" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetBackedSecuritiesMember_01a06d2f-41db-749b-9416-0a3b8140ddbb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetBackedSecuritiesMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01a06d2f-41db-7b55-8832-338273ce5a35" xlink:to="loc_us-gaap_AssetBackedSecuritiesMember_01a06d2f-41db-749b-9416-0a3b8140ddbb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-7b90-a6fd-b16f03afb2cd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MarketableSecuritiesLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesTable_01a06d2f-41db-750d-bfb4-548157c4c8f2" xlink:to="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-7b90-a6fd-b16f03afb2cd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss_01a06d2f-41db-7b88-839f-a12ca13d6802" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-7b90-a6fd-b16f03afb2cd" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss_01a06d2f-41db-7b88-839f-a12ca13d6802" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_01a06d2f-41db-7dfe-894f-fe34277515a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-7b90-a6fd-b16f03afb2cd" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_01a06d2f-41db-7dfe-894f-fe34277515a5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_01a06d2f-41db-7e96-bde5-db32a3e86e69" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-7b90-a6fd-b16f03afb2cd" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_01a06d2f-41db-7e96-bde5-db32a3e86e69" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_01a06d2f-41db-7e26-84cd-23101083324f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-7b90-a6fd-b16f03afb2cd" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_01a06d2f-41db-7e26-84cd-23101083324f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months_01a06d2f-41db-7899-977f-aa4b389d9749" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-7b90-a6fd-b16f03afb2cd" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months_01a06d2f-41db-7899-977f-aa4b389d9749" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_01a06d2f-41db-75df-abb6-4a16768a0f64" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-7b90-a6fd-b16f03afb2cd" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_01a06d2f-41db-75df-abb6-4a16768a0f64" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger_01a06d2f-41db-7a26-b47d-bd58e1a1d226" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-7b90-a6fd-b16f03afb2cd" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger_01a06d2f-41db-7a26-b47d-bd58e1a1d226" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_01a06d2f-41db-79ec-9e5e-f7f4556243e2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-7b90-a6fd-b16f03afb2cd" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_01a06d2f-41db-79ec-9e5e-f7f4556243e2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition_01a06d2f-41db-7dac-a591-40151c469851" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-7b90-a6fd-b16f03afb2cd" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition_01a06d2f-41db-7dac-a591-40151c469851" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss_01a06d2f-41db-7af0-8d2d-3f47f0815d42" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-7b90-a6fd-b16f03afb2cd" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss_01a06d2f-41db-7af0-8d2d-3f47f0815d42" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/InvestmentinSecuritiesNarrativeDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#InvestmentinSecuritiesNarrativeDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/InvestmentinSecuritiesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_01a06d2f-41db-76b9-93d9-e7ddd8a219a8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions_01a06d2f-41db-7ba1-b8a9-2eb0a8acc263" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_01a06d2f-41db-76b9-93d9-e7ddd8a219a8" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions_01a06d2f-41db-7ba1-b8a9-2eb0a8acc263" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_AvailableForSaleSecuritiesInUnrealizedLossPositionsPercentageOfTotalSecurities_01a06d2f-41db-77be-880e-7947338080d7" xlink:href="cass-20260930.xsd#cass_AvailableForSaleSecuritiesInUnrealizedLossPositionsPercentageOfTotalSecurities"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_01a06d2f-41db-76b9-93d9-e7ddd8a219a8" xlink:to="loc_cass_AvailableForSaleSecuritiesInUnrealizedLossPositionsPercentageOfTotalSecurities_01a06d2f-41db-77be-880e-7947338080d7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions_01a06d2f-41db-7598-b2af-8f5fc8e9d8a9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_01a06d2f-41db-76b9-93d9-e7ddd8a219a8" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions_01a06d2f-41db-7598-b2af-8f5fc8e9d8a9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_01a06d2f-41db-7b27-aaf3-f5336b3650e7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_01a06d2f-41db-76b9-93d9-e7ddd8a219a8" xlink:to="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_01a06d2f-41db-7b27-aaf3-f5336b3650e7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleRealizedGain_01a06d2f-41db-7a07-9bf5-e9e012915e15" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleRealizedGain"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_01a06d2f-41db-76b9-93d9-e7ddd8a219a8" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleRealizedGain_01a06d2f-41db-7a07-9bf5-e9e012915e15" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleRealizedLoss_01a06d2f-41db-7edd-8323-69b08ce8f0ac" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleRealizedLoss"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_01a06d2f-41db-76b9-93d9-e7ddd8a219a8" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleRealizedLoss_01a06d2f-41db-7edd-8323-69b08ce8f0ac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketableSecuritiesTable_01a06d2f-41db-7cb6-b56e-d1e6d5a03e51" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MarketableSecuritiesTable"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_01a06d2f-41db-76b9-93d9-e7ddd8a219a8" xlink:to="loc_us-gaap_MarketableSecuritiesTable_01a06d2f-41db-7cb6-b56e-d1e6d5a03e51" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-7255-b274-f19da07a1b61" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MarketableSecuritiesLineItems"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesTable_01a06d2f-41db-7cb6-b56e-d1e6d5a03e51" xlink:to="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-7255-b274-f19da07a1b61" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleRealizedLoss_01a06d2f-41db-7b36-ae9e-7e164a9a978a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleRealizedLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-7255-b274-f19da07a1b61" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleRealizedLoss_01a06d2f-41db-7b36-ae9e-7e164a9a978a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleRealizedGain_01a06d2f-41db-7d1e-b1f6-5b27d455a498" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleRealizedGain"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-7255-b274-f19da07a1b61" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleRealizedGain_01a06d2f-41db-7d1e-b1f6-5b27d455a498" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/InvestmentinSecuritiesScheduleoftheFairValuesofSecuritieswithUnrealizedLossesDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#InvestmentinSecuritiesScheduleoftheFairValuesofSecuritieswithUnrealizedLossesDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/InvestmentinSecuritiesScheduleoftheFairValuesofSecuritieswithUnrealizedLossesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_01a06d2f-41db-7958-8624-7ef05047e098" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketableSecuritiesTable_01a06d2f-41db-75f6-88da-d55e6317bd42" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MarketableSecuritiesTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_01a06d2f-41db-7958-8624-7ef05047e098" xlink:to="loc_us-gaap_MarketableSecuritiesTable_01a06d2f-41db-75f6-88da-d55e6317bd42" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_01a06d2f-41db-7c1f-87b3-396f5a1e4a66" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesTable_01a06d2f-41db-75f6-88da-d55e6317bd42" xlink:to="loc_us-gaap_FinancialInstrumentAxis_01a06d2f-41db-7c1f-87b3-396f5a1e4a66" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01a06d2f-41db-71d4-8ba3-d1c3a83baf32" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentAxis_01a06d2f-41db-7c1f-87b3-396f5a1e4a66" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01a06d2f-41db-71d4-8ba3-d1c3a83baf32" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USStatesAndPoliticalSubdivisionsMember_01a06d2f-41db-7f38-b945-360b8deae256" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_USStatesAndPoliticalSubdivisionsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01a06d2f-41db-71d4-8ba3-d1c3a83baf32" xlink:to="loc_us-gaap_USStatesAndPoliticalSubdivisionsMember_01a06d2f-41db-7f38-b945-360b8deae256" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember_01a06d2f-41db-76e5-a37f-bcba2a7d91e4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01a06d2f-41db-71d4-8ba3-d1c3a83baf32" xlink:to="loc_us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember_01a06d2f-41db-76e5-a37f-bcba2a7d91e4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateDebtSecuritiesMember_01a06d2f-41db-7439-b9ed-c3142da721f6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CorporateDebtSecuritiesMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01a06d2f-41db-71d4-8ba3-d1c3a83baf32" xlink:to="loc_us-gaap_CorporateDebtSecuritiesMember_01a06d2f-41db-7439-b9ed-c3142da721f6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USTreasurySecuritiesMember_01a06d2f-41db-7b70-aa44-ec7bde49e9e3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_USTreasurySecuritiesMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01a06d2f-41db-71d4-8ba3-d1c3a83baf32" xlink:to="loc_us-gaap_USTreasurySecuritiesMember_01a06d2f-41db-7b70-aa44-ec7bde49e9e3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetBackedSecuritiesMember_01a06d2f-41db-7204-89ae-4f8604fc9e5b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetBackedSecuritiesMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01a06d2f-41db-71d4-8ba3-d1c3a83baf32" xlink:to="loc_us-gaap_AssetBackedSecuritiesMember_01a06d2f-41db-7204-89ae-4f8604fc9e5b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-72f3-8f65-c3d1a3950754" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MarketableSecuritiesLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesTable_01a06d2f-41db-75f6-88da-d55e6317bd42" xlink:to="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-72f3-8f65-c3d1a3950754" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months_01a06d2f-41db-7077-a7e3-251752868547" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-72f3-8f65-c3d1a3950754" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months_01a06d2f-41db-7077-a7e3-251752868547" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_01a06d2f-41db-783c-baf1-cc5d349a6fe1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-72f3-8f65-c3d1a3950754" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_01a06d2f-41db-783c-baf1-cc5d349a6fe1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger_01a06d2f-41db-7d86-ad37-2bb433f85fa2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-72f3-8f65-c3d1a3950754" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger_01a06d2f-41db-7d86-ad37-2bb433f85fa2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_01a06d2f-41db-7c85-99b4-ce0b39f09d97" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-72f3-8f65-c3d1a3950754" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_01a06d2f-41db-7c85-99b4-ce0b39f09d97" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition_01a06d2f-41db-7f20-aabd-7c6093763096" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-72f3-8f65-c3d1a3950754" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition_01a06d2f-41db-7f20-aabd-7c6093763096" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss_01a06d2f-41db-77f2-9c34-96d844f6a27f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketableSecuritiesLineItems_01a06d2f-41db-72f3-8f65-c3d1a3950754" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss_01a06d2f-41db-77f2-9c34-96d844f6a27f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/InvestmentinSecuritiesScheduleofAmortizedCostandFairValueofInvestmentSecuritiesDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#InvestmentinSecuritiesScheduleofAmortizedCostandFairValueofInvestmentSecuritiesDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/InvestmentinSecuritiesScheduleofAmortizedCostandFairValueofInvestmentSecuritiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_01a06d2f-41db-760e-ba5a-45951ffe3668" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract_01a06d2f-41db-756f-a432-11134ac6be8c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_01a06d2f-41db-760e-ba5a-45951ffe3668" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract_01a06d2f-41db-756f-a432-11134ac6be8c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_01a06d2f-41db-7953-9258-4655ed3d7bea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract_01a06d2f-41db-756f-a432-11134ac6be8c" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_01a06d2f-41db-7953-9258-4655ed3d7bea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost_01a06d2f-41db-7d5b-ad95-a3dbbfffb671" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract_01a06d2f-41db-756f-a432-11134ac6be8c" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost_01a06d2f-41db-7d5b-ad95-a3dbbfffb671" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost_01a06d2f-41db-75a5-b372-ef090d35f1a9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract_01a06d2f-41db-756f-a432-11134ac6be8c" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost_01a06d2f-41db-75a5-b372-ef090d35f1a9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost_01a06d2f-41db-7061-936a-77b9ce61a800" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract_01a06d2f-41db-756f-a432-11134ac6be8c" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost_01a06d2f-41db-7061-936a-77b9ce61a800" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss_01a06d2f-41db-7ac0-8237-e6454e87ea35" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract_01a06d2f-41db-756f-a432-11134ac6be8c" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss_01a06d2f-41db-7ac0-8237-e6454e87ea35" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueAbstract_01a06d2f-41db-75ef-b3eb-af626b54541e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_01a06d2f-41db-760e-ba5a-45951ffe3668" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueAbstract_01a06d2f-41db-75ef-b3eb-af626b54541e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_01a06d2f-41db-7a42-86af-133681dcfdb9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueAbstract_01a06d2f-41db-75ef-b3eb-af626b54541e" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_01a06d2f-41db-7a42-86af-133681dcfdb9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue_01a06d2f-41db-703b-aa3c-13401bad569f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueAbstract_01a06d2f-41db-75ef-b3eb-af626b54541e" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue_01a06d2f-41db-703b-aa3c-13401bad569f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue_01a06d2f-41db-75db-9294-c3af4bf87587" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueAbstract_01a06d2f-41db-75ef-b3eb-af626b54541e" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue_01a06d2f-41db-75db-9294-c3af4bf87587" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue_01a06d2f-41db-7247-9b4c-f6a0cf1d4966" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueAbstract_01a06d2f-41db-75ef-b3eb-af626b54541e" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue_01a06d2f-41db-7247-9b4c-f6a0cf1d4966" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_01a06d2f-41db-7e60-a2be-c7137f023925" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueAbstract_01a06d2f-41db-75ef-b3eb-af626b54541e" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_01a06d2f-41db-7e60-a2be-c7137f023925" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/FairValueofFinancialInstrumentsDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#FairValueofFinancialInstrumentsDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/FairValueofFinancialInstrumentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_01a06d2f-41db-750d-8a64-0384bad8fdd1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByBalanceSheetGroupingTable_01a06d2f-41db-7f24-bf9a-3d2d78658acb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByBalanceSheetGroupingTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_01a06d2f-41db-750d-8a64-0384bad8fdd1" xlink:to="loc_us-gaap_FairValueByBalanceSheetGroupingTable_01a06d2f-41db-7f24-bf9a-3d2d78658acb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementBasisAxis_01a06d2f-41db-71c8-9384-7e0076defe49" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByMeasurementBasisAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_01a06d2f-41db-7f24-bf9a-3d2d78658acb" xlink:to="loc_us-gaap_FairValueByMeasurementBasisAxis_01a06d2f-41db-71c8-9384-7e0076defe49" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain_01a06d2f-41db-7be4-982b-818563bf116b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueDisclosureItemAmountsDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_01a06d2f-41db-71c8-9384-7e0076defe49" xlink:to="loc_us-gaap_FairValueDisclosureItemAmountsDomain_01a06d2f-41db-7be4-982b-818563bf116b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_01a06d2f-41db-74a6-86e2-8f720e777d62" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_01a06d2f-41db-7be4-982b-818563bf116b" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_01a06d2f-41db-74a6-86e2-8f720e777d62" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_01a06d2f-41db-7b71-b0a2-da3a1a98d5bb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_01a06d2f-41db-7be4-982b-818563bf116b" xlink:to="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_01a06d2f-41db-7b71-b0a2-da3a1a98d5bb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_01a06d2f-41db-7f8b-a49a-89eb08eb37b7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EstimateOfFairValueFairValueDisclosureMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_01a06d2f-41db-7be4-982b-818563bf116b" xlink:to="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_01a06d2f-41db-7f8b-a49a-89eb08eb37b7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_01a06d2f-41db-7b18-8785-5fb73cddb723" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_01a06d2f-41db-7f24-bf9a-3d2d78658acb" xlink:to="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_01a06d2f-41db-7b18-8785-5fb73cddb723" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_01a06d2f-41db-798f-b33c-468699272759" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_01a06d2f-41db-7b18-8785-5fb73cddb723" xlink:to="loc_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_01a06d2f-41db-798f-b33c-468699272759" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_01a06d2f-41db-7d2e-b115-79eafe034769" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_01a06d2f-41db-798f-b33c-468699272759" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_01a06d2f-41db-7d2e-b115-79eafe034769" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_01a06d2f-41db-7ba8-b138-10b674bf5aa8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_01a06d2f-41db-798f-b33c-468699272759" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_01a06d2f-41db-7ba8-b138-10b674bf5aa8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/netLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansReceivableFairValueDisclosure_01a06d2f-41db-71c6-b694-e1de16500d2d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LoansReceivableFairValueDisclosure"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_01a06d2f-41db-798f-b33c-468699272759" xlink:to="loc_us-gaap_LoansReceivableFairValueDisclosure_01a06d2f-41db-71c6-b694-e1de16500d2d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_AccruedInterestReceivableFairValueDisclosure_01a06d2f-41db-744b-917c-5c42744812cb" xlink:href="cass-20260930.xsd#cass_AccruedInterestReceivableFairValueDisclosure"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_01a06d2f-41db-798f-b33c-468699272759" xlink:to="loc_cass_AccruedInterestReceivableFairValueDisclosure_01a06d2f-41db-744b-917c-5c42744812cb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_01a06d2f-41db-78d4-986a-498818e5cedd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_01a06d2f-41db-798f-b33c-468699272759" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_01a06d2f-41db-78d4-986a-498818e5cedd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_01a06d2f-41db-7a77-9d81-01a8a00bc7ae" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_01a06d2f-41db-7b18-8785-5fb73cddb723" xlink:to="loc_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_01a06d2f-41db-7a77-9d81-01a8a00bc7ae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepositsFairValueDisclosure_01a06d2f-41db-7cec-a952-54b7bafb723a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepositsFairValueDisclosure"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_01a06d2f-41db-7a77-9d81-01a8a00bc7ae" xlink:to="loc_us-gaap_DepositsFairValueDisclosure_01a06d2f-41db-7cec-a952-54b7bafb723a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableFairValueDisclosure_01a06d2f-41db-7e99-8a46-1afce05c31a0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsPayableFairValueDisclosure"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_01a06d2f-41db-7a77-9d81-01a8a00bc7ae" xlink:to="loc_us-gaap_AccountsPayableFairValueDisclosure_01a06d2f-41db-7e99-8a46-1afce05c31a0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesFairValueDisclosure_01a06d2f-41db-7096-82e5-a5a6f06e1b81" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccruedLiabilitiesFairValueDisclosure"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_01a06d2f-41db-7a77-9d81-01a8a00bc7ae" xlink:to="loc_us-gaap_AccruedLiabilitiesFairValueDisclosure_01a06d2f-41db-7096-82e5-a5a6f06e1b81" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherShortTermBorrowings_01a06d2f-41db-7a08-b1c4-af7de005b4c1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherShortTermBorrowings"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_01a06d2f-41db-7a77-9d81-01a8a00bc7ae" xlink:to="loc_us-gaap_OtherShortTermBorrowings_01a06d2f-41db-7a08-b1c4-af7de005b4c1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosure_01a06d2f-41db-776b-881a-302a288e3421" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesFairValueDisclosure"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_01a06d2f-41db-7a77-9d81-01a8a00bc7ae" xlink:to="loc_us-gaap_LiabilitiesFairValueDisclosure_01a06d2f-41db-776b-881a-302a288e3421" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/RevenuefromContractswithCustomersDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#RevenuefromContractswithCustomersDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/RevenuefromContractswithCustomersDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract_01a06d2f-41db-7026-bc54-fd59c9370b55" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_01a06d2f-41db-747d-a375-360449d12fa6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_01a06d2f-41db-7026-bc54-fd59c9370b55" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_01a06d2f-41db-747d-a375-360449d12fa6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_01a06d2f-41db-7655-ab3c-e8b5136eead1" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductOrServiceAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_01a06d2f-41db-747d-a375-360449d12fa6" xlink:to="loc_srt_ProductOrServiceAxis_01a06d2f-41db-7655-ab3c-e8b5136eead1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_01a06d2f-41db-79b6-b1f0-35b78fe95a50" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductOrServiceAxis_01a06d2f-41db-7655-ab3c-e8b5136eead1" xlink:to="loc_srt_ProductsAndServicesDomain_01a06d2f-41db-79b6-b1f0-35b78fe95a50" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_ProcessingFeesMember_01a06d2f-41db-73bc-b12d-b60488df3797" xlink:href="cass-20260930.xsd#cass_ProcessingFeesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductsAndServicesDomain_01a06d2f-41db-79b6-b1f0-35b78fe95a50" xlink:to="loc_cass_ProcessingFeesMember_01a06d2f-41db-73bc-b12d-b60488df3797" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_FinancialFeesMember_01a06d2f-41db-79eb-b28d-afb00f0a72f9" xlink:href="cass-20260930.xsd#cass_FinancialFeesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductsAndServicesDomain_01a06d2f-41db-79b6-b1f0-35b78fe95a50" xlink:to="loc_cass_FinancialFeesMember_01a06d2f-41db-79eb-b28d-afb00f0a72f9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_InformationServicesMember_01a06d2f-41db-795a-9d17-071b6d98c477" xlink:href="cass-20260930.xsd#cass_InformationServicesMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductsAndServicesDomain_01a06d2f-41db-79b6-b1f0-35b78fe95a50" xlink:to="loc_cass_InformationServicesMember_01a06d2f-41db-795a-9d17-071b6d98c477" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_BankServiceFeesMember_01a06d2f-41db-7dfa-839d-9c6bf187eb61" xlink:href="cass-20260930.xsd#cass_BankServiceFeesMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductsAndServicesDomain_01a06d2f-41db-79b6-b1f0-35b78fe95a50" xlink:to="loc_cass_BankServiceFeesMember_01a06d2f-41db-7dfa-839d-9c6bf187eb61" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_01a06d2f-41db-7ad8-9ef5-3235e25b1a0d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_01a06d2f-41db-747d-a375-360449d12fa6" xlink:to="loc_us-gaap_DisaggregationOfRevenueLineItems_01a06d2f-41db-7ad8-9ef5-3235e25b1a0d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuePerformanceObligationAbstract_01a06d2f-41db-788f-a527-1527cac0da17" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenuePerformanceObligationAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_01a06d2f-41db-7ad8-9ef5-3235e25b1a0d" xlink:to="loc_us-gaap_RevenuePerformanceObligationAbstract_01a06d2f-41db-788f-a527-1527cac0da17" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_01a06d2f-41db-7695-ae8b-f9b1e8572c8f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenuePerformanceObligationAbstract_01a06d2f-41db-788f-a527-1527cac0da17" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_01a06d2f-41db-7695-ae8b-f9b1e8572c8f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueNotFromContractWithCustomer_01a06d2f-41db-764c-96c7-1d253595ce26" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueNotFromContractWithCustomer"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenuePerformanceObligationAbstract_01a06d2f-41db-788f-a527-1527cac0da17" xlink:to="loc_us-gaap_RevenueNotFromContractWithCustomer_01a06d2f-41db-764c-96c7-1d253595ce26" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfInvestments_01a06d2f-41db-7e4c-962a-6c65ac711d55" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnSaleOfInvestments"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenuePerformanceObligationAbstract_01a06d2f-41db-788f-a527-1527cac0da17" xlink:to="loc_us-gaap_GainLossOnSaleOfInvestments_01a06d2f-41db-7e4c-962a-6c65ac711d55" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoninterestIncome_01a06d2f-41db-7e3c-bf45-f38cd2fd3662" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NoninterestIncome"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenuePerformanceObligationAbstract_01a06d2f-41db-788f-a527-1527cac0da17" xlink:to="loc_us-gaap_NoninterestIncome_01a06d2f-41db-7e3c-bf45-f38cd2fd3662" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/LeasesNarrativeDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#LeasesNarrativeDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/LeasesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesAbstract_01a06d2f-41db-7ffb-ab51-7823d3577535" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LeasesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_01a06d2f-41db-79b1-9415-f7b51c7cac8f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_01a06d2f-41db-7ffb-ab51-7823d3577535" xlink:to="loc_us-gaap_OperatingLeaseLiability_01a06d2f-41db-79b1-9415-f7b51c7cac8f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_01a06d2f-41db-7d91-bc5d-1b812e80d17f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_01a06d2f-41db-7ffb-ab51-7823d3577535" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_01a06d2f-41db-7d91-bc5d-1b812e80d17f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList_01a06d2f-41db-7987-984e-0b1ce801e007" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_01a06d2f-41db-7ffb-ab51-7823d3577535" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList_01a06d2f-41db-7987-984e-0b1ce801e007" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList_01a06d2f-41db-76e9-adf2-547785cf4bc6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_01a06d2f-41db-7ffb-ab51-7823d3577535" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList_01a06d2f-41db-76e9-adf2-547785cf4bc6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost_01a06d2f-41db-73ea-9798-3564b8b2a6f9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseCost"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_01a06d2f-41db-7ffb-ab51-7823d3577535" xlink:to="loc_us-gaap_OperatingLeaseCost_01a06d2f-41db-73ea-9798-3564b8b2a6f9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermLeaseCost_01a06d2f-41db-7781-aa5c-b83d16445027" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermLeaseCost"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_01a06d2f-41db-7ffb-ab51-7823d3577535" xlink:to="loc_us-gaap_ShortTermLeaseCost_01a06d2f-41db-7781-aa5c-b83d16445027" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableLeaseCost_01a06d2f-41db-7232-8ab3-e138b96f7a3c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableLeaseCost"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_01a06d2f-41db-7ffb-ab51-7823d3577535" xlink:to="loc_us-gaap_VariableLeaseCost_01a06d2f-41db-7232-8ab3-e138b96f7a3c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_01a06d2f-41db-7ea3-b36d-eb9eb7c4be08" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_01a06d2f-41db-7ffb-ab51-7823d3577535" xlink:to="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_01a06d2f-41db-7ea3-b36d-eb9eb7c4be08" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_01a06d2f-41db-75ee-b120-0fdcb905cd33" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_01a06d2f-41db-7ffb-ab51-7823d3577535" xlink:to="loc_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_01a06d2f-41db-75ee-b120-0fdcb905cd33" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/LeasesScheduleofOperatingLeaseMaturityDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#LeasesScheduleofOperatingLeaseMaturityDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/LeasesScheduleofOperatingLeaseMaturityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesAbstract_01a06d2f-41db-71d2-8d95-84b2fd649792" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LeasesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_01a06d2f-41db-723b-babe-41056f6940d4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_01a06d2f-41db-71d2-8d95-84b2fd649792" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_01a06d2f-41db-723b-babe-41056f6940d4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_01a06d2f-41db-78da-8c3f-a99b1ed03d1f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_01a06d2f-41db-71d2-8d95-84b2fd649792" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_01a06d2f-41db-78da-8c3f-a99b1ed03d1f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_01a06d2f-41db-7801-91f1-80d5f7507d26" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_01a06d2f-41db-71d2-8d95-84b2fd649792" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_01a06d2f-41db-7801-91f1-80d5f7507d26" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_01a06d2f-41db-7081-b9b6-b6377da5333e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_01a06d2f-41db-71d2-8d95-84b2fd649792" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_01a06d2f-41db-7081-b9b6-b6377da5333e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_01a06d2f-41db-70da-b511-2a190fd646aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_01a06d2f-41db-71d2-8d95-84b2fd649792" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_01a06d2f-41db-70da-b511-2a190fd646aa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_LesseeOperatingLeaseLiabilityToBePaidDueAfterYearFour_01a06d2f-41db-7ddf-a1b5-39afcda604a5" xlink:href="cass-20260930.xsd#cass_LesseeOperatingLeaseLiabilityToBePaidDueAfterYearFour"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_01a06d2f-41db-71d2-8d95-84b2fd649792" xlink:to="loc_cass_LesseeOperatingLeaseLiabilityToBePaidDueAfterYearFour_01a06d2f-41db-7ddf-a1b5-39afcda604a5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_01a06d2f-41db-7325-9c1e-c2ba751b11d8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_01a06d2f-41db-71d2-8d95-84b2fd649792" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_01a06d2f-41db-7325-9c1e-c2ba751b11d8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_01a06d2f-41db-785a-8ddf-46908d9b5754" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_01a06d2f-41db-71d2-8d95-84b2fd649792" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_01a06d2f-41db-785a-8ddf-46908d9b5754" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_01a06d2f-41db-7258-aacf-009112c47ed7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_01a06d2f-41db-71d2-8d95-84b2fd649792" xlink:to="loc_us-gaap_OperatingLeaseLiability_01a06d2f-41db-7258-aacf-009112c47ed7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/DiscontinuedOperationsandDisposalGroupsDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#DiscontinuedOperationsandDisposalGroupsDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/DiscontinuedOperationsandDisposalGroupsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwill1_01a06d2f-41db-70ee-bac7-97ab523a4610" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwill1"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwill1_01a06d2f-41db-70ee-bac7-97ab523a4610" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationIntangibleAssets_01a06d2f-41db-7be0-9264-e469cea03105" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationIntangibleAssets"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationIntangibleAssets_01a06d2f-41db-7be0-9264-e469cea03105" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherAssets_01a06d2f-41db-7a10-96c7-82ada135896e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherAssets"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherAssets_01a06d2f-41db-7a10-96c7-82ada135896e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_01a06d2f-41db-7b2c-928e-8d0a2d9a3ce2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_01a06d2f-41db-7b2c-928e-8d0a2d9a3ce2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_AccountsAndDraftsPayableDiscontinuedOperations_01a06d2f-41db-7e3c-b002-1166479f6e34" xlink:href="cass-20260930.xsd#cass_AccountsAndDraftsPayableDiscontinuedOperations"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_cass_AccountsAndDraftsPayableDiscontinuedOperations_01a06d2f-41db-7e3c-b002-1166479f6e34" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherLiabilities_01a06d2f-41db-7788-954d-e01f39b6806d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherLiabilities"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherLiabilities_01a06d2f-41db-7788-954d-e01f39b6806d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_01a06d2f-41db-75ab-a76a-cc1e16be993d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_01a06d2f-41db-75ab-a76a-cc1e16be993d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_AccountsAndDraftsPayable_01a06d2f-41db-785e-83f4-16e32516bff9" xlink:href="cass-20260930.xsd#cass_AccountsAndDraftsPayable"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_cass_AccountsAndDraftsPayable_01a06d2f-41db-785e-83f4-16e32516bff9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment_01a06d2f-41db-73e8-a702-1fe7ce1dba0e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment_01a06d2f-41db-73e8-a702-1fe7ce1dba0e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_ProcessingFeesDiscontinuedOperations_01a06d2f-41db-7d79-8f3e-baff00ad7cfc" xlink:href="cass-20260930.xsd#cass_ProcessingFeesDiscontinuedOperations"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_cass_ProcessingFeesDiscontinuedOperations_01a06d2f-41db-7d79-8f3e-baff00ad7cfc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_FinancialFeesDiscontinuedOpeartions_01a06d2f-41db-7ea2-afc1-991b8cee00eb" xlink:href="cass-20260930.xsd#cass_FinancialFeesDiscontinuedOpeartions"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_cass_FinancialFeesDiscontinuedOpeartions_01a06d2f-41db-7ea2-afc1-991b8cee00eb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_OtherFeesDiscontinuedOperations_01a06d2f-41db-7dec-88ca-85b64e4b1a40" xlink:href="cass-20260930.xsd#cass_OtherFeesDiscontinuedOperations"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_cass_OtherFeesDiscontinuedOperations_01a06d2f-41db-7dec-88ca-85b64e4b1a40" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfBusiness_01a06d2f-41db-765c-a0a8-f9cda75df8a6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnSaleOfBusiness"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_us-gaap_GainLossOnSaleOfBusiness_01a06d2f-41db-765c-a0a8-f9cda75df8a6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue_01a06d2f-41db-76b8-b105-c76a04f58cd5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue_01a06d2f-41db-76b8-b105-c76a04f58cd5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_SalariesAndCommissionsDiscontinuedOperations_01a06d2f-41db-7e6c-a480-63bb429023ac" xlink:href="cass-20260930.xsd#cass_SalariesAndCommissionsDiscontinuedOperations"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_cass_SalariesAndCommissionsDiscontinuedOperations_01a06d2f-41db-7e6c-a480-63bb429023ac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_SharedBasedPaymentArrangementNoncashExpenseDiscontinuedOperations_01a06d2f-41db-7a3c-ba5c-33201c1b164d" xlink:href="cass-20260930.xsd#cass_SharedBasedPaymentArrangementNoncashExpenseDiscontinuedOperations"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_cass_SharedBasedPaymentArrangementNoncashExpenseDiscontinuedOperations_01a06d2f-41db-7a3c-ba5c-33201c1b164d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_OtherBenefitsDiscontinuedOperations_01a06d2f-41db-7ca3-8396-237040af88e5" xlink:href="cass-20260930.xsd#cass_OtherBenefitsDiscontinuedOperations"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_cass_OtherBenefitsDiscontinuedOperations_01a06d2f-41db-7ca3-8396-237040af88e5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_TotalPersonnelExpensesDiscontinuedOperations_01a06d2f-41db-7c7a-a1a2-a1b9dbfdde18" xlink:href="cass-20260930.xsd#cass_TotalPersonnelExpensesDiscontinuedOperations"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_cass_TotalPersonnelExpensesDiscontinuedOperations_01a06d2f-41db-7c7a-a1a2-a1b9dbfdde18" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_OccupancyDiscontinuedOperations_01a06d2f-41db-7426-bbba-00c0170250c3" xlink:href="cass-20260930.xsd#cass_OccupancyDiscontinuedOperations"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_cass_OccupancyDiscontinuedOperations_01a06d2f-41db-7426-bbba-00c0170250c3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_EquipmentDiscontinuedOperations_01a06d2f-41db-75d2-bde4-2603f4ce045d" xlink:href="cass-20260930.xsd#cass_EquipmentDiscontinuedOperations"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_cass_EquipmentDiscontinuedOperations_01a06d2f-41db-75d2-bde4-2603f4ce045d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization_01a06d2f-41db-7d52-9022-90b761b77778" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization_01a06d2f-41db-7d52-9022-90b761b77778" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherExpense_01a06d2f-41db-798a-99cc-6ef460f7c7c9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherExpense"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherExpense_01a06d2f-41db-798a-99cc-6ef460f7c7c9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense_01a06d2f-41db-7eeb-93f7-227ab05a31b6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense_01a06d2f-41db-7eeb-93f7-227ab05a31b6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_01a06d2f-41db-7501-8a64-bb8dd24c3bb6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax"/>
    <link:presentationArc order="24" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_01a06d2f-41db-7501-8a64-bb8dd24c3bb6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation_01a06d2f-41db-714d-9a72-a5b5c8c9a63a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation"/>
    <link:presentationArc order="25" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation_01a06d2f-41db-714d-9a72-a5b5c8c9a63a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_01a06d2f-41db-7e61-9695-02f6426cdd16" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity"/>
    <link:presentationArc order="26" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_01a06d2f-41db-7a68-af71-03a830ec7571" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_01a06d2f-41db-7e61-9695-02f6426cdd16" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/DebtDetails" xlink:type="simple" xlink:href="cass-20260930.xsd#DebtDetails"/>
  <link:presentationLink xlink:role="http://cassinfo.com/role/DebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_01a06d2f-41db-7ebf-a877-cbcb3fd0c873" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherShortTermBorrowings_01a06d2f-41db-74f0-bb4f-d8025c35d14c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherShortTermBorrowings"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_01a06d2f-41db-7ebf-a877-cbcb3fd0c873" xlink:to="loc_us-gaap_OtherShortTermBorrowings_01a06d2f-41db-74f0-bb4f-d8025c35d14c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
