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

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2023 Workiva-->
<!--r:7b3b8876-b5d0-48c3-9a0f-226636e4d4da,g:b93d0a8b-1771-4495-84da-fe48c1b0886f-->
<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/CONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="cass-20230331.xsd#CONSOLIDATEDBALANCESHEETS"/>
  <link:calculationLink xlink:role="http://cassinfo.com/role/CONSOLIDATEDBALANCESHEETS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_d93bc462-6baf-4cf2-ad5a-5acadcdb4df0" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_a07a2d87-bc45-445e-a25c-1a559eca8ef7" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_d93bc462-6baf-4cf2-ad5a-5acadcdb4df0" xlink:to="loc_us-gaap_Liabilities_a07a2d87-bc45-445e-a25c-1a559eca8ef7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_c8f2b6ce-9b7a-4021-8cb7-0f71edc2794b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_d93bc462-6baf-4cf2-ad5a-5acadcdb4df0" xlink:to="loc_us-gaap_StockholdersEquity_c8f2b6ce-9b7a-4021-8cb7-0f71edc2794b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsAndShortTermInvestments_bd0c956b-105d-4b9e-8523-91f7a8bca4fd" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CashCashEquivalentsAndShortTermInvestments"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndDueFromBanks_c8f80ab5-87fd-4d94-8beb-0a6ac24061bb" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CashAndDueFromBanks"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsAndShortTermInvestments_bd0c956b-105d-4b9e-8523-91f7a8bca4fd" xlink:to="loc_us-gaap_CashAndDueFromBanks_c8f80ab5-87fd-4d94-8beb-0a6ac24061bb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestments_cb459769-0bbd-4c40-9fc9-b22be6c9216e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShortTermInvestments"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsAndShortTermInvestments_bd0c956b-105d-4b9e-8523-91f7a8bca4fd" xlink:to="loc_us-gaap_ShortTermInvestments_cb459769-0bbd-4c40-9fc9-b22be6c9216e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Deposits_29555367-2394-4d95-9eeb-4ce3196f8a42" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Deposits"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoninterestBearingDepositLiabilities_1b3e67dc-95d3-4479-9f1a-de6907278401" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NoninterestBearingDepositLiabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Deposits_29555367-2394-4d95-9eeb-4ce3196f8a42" xlink:to="loc_us-gaap_NoninterestBearingDepositLiabilities_1b3e67dc-95d3-4479-9f1a-de6907278401" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestBearingDepositLiabilities_90b18682-62c1-466d-8444-db54a72ab190" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestBearingDepositLiabilities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Deposits_29555367-2394-4d95-9eeb-4ce3196f8a42" xlink:to="loc_us-gaap_InterestBearingDepositLiabilities_90b18682-62c1-466d-8444-db54a72ab190" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_5c3746df-ca5d-4fa7-b6a2-b91da080e783" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss_f7dcc61f-5522-4224-9862-c34f45f563d2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_5c3746df-ca5d-4fa7-b6a2-b91da080e783" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss_f7dcc61f-5522-4224-9862-c34f45f563d2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest_dbba6397-e743-4808-92e2-423812ae5162" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_5c3746df-ca5d-4fa7-b6a2-b91da080e783" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest_dbba6397-e743-4808-92e2-423812ae5162" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_69dab718-7fb9-4d75-ad6d-30a0abaa6881" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Deposits_18aaead0-e86a-482d-82ea-de20b61ad7d5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Deposits"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_69dab718-7fb9-4d75-ad6d-30a0abaa6881" xlink:to="loc_us-gaap_Deposits_18aaead0-e86a-482d-82ea-de20b61ad7d5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_AccountsAndDraftsPayable_573ee706-4b84-4535-856f-2c1acd91f86c" xlink:href="cass-20230331.xsd#cass_AccountsAndDraftsPayable"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_69dab718-7fb9-4d75-ad6d-30a0abaa6881" xlink:to="loc_cass_AccountsAndDraftsPayable_573ee706-4b84-4535-856f-2c1acd91f86c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilities_52601562-e237-4d0f-971d-d54a5ffd1d5e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherLiabilities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_69dab718-7fb9-4d75-ad6d-30a0abaa6881" xlink:to="loc_us-gaap_OtherLiabilities_52601562-e237-4d0f-971d-d54a5ffd1d5e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_de303bec-b34e-4002-bc9b-5746f14bf3a5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsAndShortTermInvestments_bf850d0a-5bf6-40d3-ac5a-2da8e642e92f" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CashCashEquivalentsAndShortTermInvestments"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_de303bec-b34e-4002-bc9b-5746f14bf3a5" xlink:to="loc_us-gaap_CashCashEquivalentsAndShortTermInvestments_bf850d0a-5bf6-40d3-ac5a-2da8e642e92f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_c6fd5d95-73e0-4b2c-a6b6-c61c4ae9405a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_de303bec-b34e-4002-bc9b-5746f14bf3a5" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_c6fd5d95-73e0-4b2c-a6b6-c61c4ae9405a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_8fa26de9-9398-4d49-b023-b1b1d6d5a7c3" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_de303bec-b34e-4002-bc9b-5746f14bf3a5" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_8fa26de9-9398-4d49-b023-b1b1d6d5a7c3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_23a171db-4e4a-44e9-8201-91fa33a582df" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_de303bec-b34e-4002-bc9b-5746f14bf3a5" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_23a171db-4e4a-44e9-8201-91fa33a582df" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BankOwnedLifeInsurance_a297994a-70e2-4093-bf95-698122baed43" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_BankOwnedLifeInsurance"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_de303bec-b34e-4002-bc9b-5746f14bf3a5" xlink:to="loc_us-gaap_BankOwnedLifeInsurance_a297994a-70e2-4093-bf95-698122baed43" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_PaymentsInAdvanceOfFunding_bedcd829-f417-495a-97f7-6c71ae266462" xlink:href="cass-20230331.xsd#cass_PaymentsInAdvanceOfFunding"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_de303bec-b34e-4002-bc9b-5746f14bf3a5" xlink:to="loc_cass_PaymentsInAdvanceOfFunding_bedcd829-f417-495a-97f7-6c71ae266462" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_e77e58a3-4f3e-4695-8b1c-7ff587641c41" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_de303bec-b34e-4002-bc9b-5746f14bf3a5" xlink:to="loc_us-gaap_Goodwill_e77e58a3-4f3e-4695-8b1c-7ff587641c41" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_b4e00105-b590-40a2-8449-7f67a46e9f04" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_de303bec-b34e-4002-bc9b-5746f14bf3a5" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_b4e00105-b590-40a2-8449-7f67a46e9f04" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesFromCustomers_23a16f0e-7d4c-44cd-948a-1ae9e13ac76b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ReceivablesFromCustomers"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_de303bec-b34e-4002-bc9b-5746f14bf3a5" xlink:to="loc_us-gaap_ReceivablesFromCustomers_23a16f0e-7d4c-44cd-948a-1ae9e13ac76b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssets_faca3a23-e7de-4f8c-95e7-e7b5fd49daaa" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherAssets"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_de303bec-b34e-4002-bc9b-5746f14bf3a5" xlink:to="loc_us-gaap_OtherAssets_faca3a23-e7de-4f8c-95e7-e7b5fd49daaa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_3e930a4c-c8fb-477f-b98a-70faeddaf6fb" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_7648c357-977e-4330-9f17-5b2b0bdb53ea" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PreferredStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_3e930a4c-c8fb-477f-b98a-70faeddaf6fb" xlink:to="loc_us-gaap_PreferredStockValue_7648c357-977e-4330-9f17-5b2b0bdb53ea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValueOutstanding_a5f666fe-bcb8-4f6b-9ec2-a0db87e53808" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockValueOutstanding"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_3e930a4c-c8fb-477f-b98a-70faeddaf6fb" xlink:to="loc_us-gaap_CommonStockValueOutstanding_a5f666fe-bcb8-4f6b-9ec2-a0db87e53808" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_5a7cfbaf-b659-4a5d-81e4-0280e8f3095f" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_3e930a4c-c8fb-477f-b98a-70faeddaf6fb" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_5a7cfbaf-b659-4a5d-81e4-0280e8f3095f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_571f6bec-f0cb-4111-8143-4532d0882aa3" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_3e930a4c-c8fb-477f-b98a-70faeddaf6fb" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_571f6bec-f0cb-4111-8143-4532d0882aa3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonValue_b60c8e90-e731-4703-8bd6-13349937f663" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_TreasuryStockCommonValue"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_3e930a4c-c8fb-477f-b98a-70faeddaf6fb" xlink:to="loc_us-gaap_TreasuryStockCommonValue_b60c8e90-e731-4703-8bd6-13349937f663" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_d4bb7322-515c-4ca3-8bbb-4dc2a3d522fa" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_3e930a4c-c8fb-477f-b98a-70faeddaf6fb" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_d4bb7322-515c-4ca3-8bbb-4dc2a3d522fa" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/CONSOLIDATEDSTATEMENTSOFINCOME" xlink:type="simple" xlink:href="cass-20230331.xsd#CONSOLIDATEDSTATEMENTSOFINCOME"/>
  <link:calculationLink xlink:role="http://cassinfo.com/role/CONSOLIDATEDSTATEMENTSOFINCOME" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_30f748d6-8745-44ff-9303-1820d8fd849a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseShortTermBorrowings_b2c27b5e-b487-42ce-ab62-b8754e71d77b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestExpenseShortTermBorrowings"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpense_30f748d6-8745-44ff-9303-1820d8fd849a" xlink:to="loc_us-gaap_InterestExpenseShortTermBorrowings_b2c27b5e-b487-42ce-ab62-b8754e71d77b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDeposits_22f45ce2-38c8-4b06-9f7f-0496b51aa5b5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestExpenseDeposits"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpense_30f748d6-8745-44ff-9303-1820d8fd849a" xlink:to="loc_us-gaap_InterestExpenseDeposits_22f45ce2-38c8-4b06-9f7f-0496b51aa5b5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_0974c25e-f57d-425d-af66-afab1edaa40f" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_1b9d26a6-18b8-4a3b-96fc-d77dc5309048" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_0974c25e-f57d-425d-af66-afab1edaa40f" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_1b9d26a6-18b8-4a3b-96fc-d77dc5309048" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_a09e32c4-3b72-404f-a4ba-bd7f4b9806f0" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_0974c25e-f57d-425d-af66-afab1edaa40f" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_a09e32c4-3b72-404f-a4ba-bd7f4b9806f0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_ea065f69-6217-48cf-b7d0-e9320a6ab0df" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_7ed364a7-a0a8-4977-9c03-dace72d44157" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_ea065f69-6217-48cf-b7d0-e9320a6ab0df" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_7ed364a7-a0a8-4977-9c03-dace72d44157" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForLoanLossesExpensed_c7fb7899-fe2e-44d1-a9fc-8eef2f5863d8" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProvisionForLoanLossesExpensed"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_ea065f69-6217-48cf-b7d0-e9320a6ab0df" xlink:to="loc_us-gaap_ProvisionForLoanLossesExpensed_c7fb7899-fe2e-44d1-a9fc-8eef2f5863d8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_106ae4f1-aa2a-4685-a0a4-d6dc7ba770c2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_98c13310-11c1-4472-9512-147b0eff94ba" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Revenues"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_106ae4f1-aa2a-4685-a0a4-d6dc7ba770c2" xlink:to="loc_us-gaap_Revenues_98c13310-11c1-4472-9512-147b0eff94ba" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoninterestExpense_95de551f-458b-4260-bc93-b160ae2af70c" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NoninterestExpense"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_106ae4f1-aa2a-4685-a0a4-d6dc7ba770c2" xlink:to="loc_us-gaap_NoninterestExpense_95de551f-458b-4260-bc93-b160ae2af70c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestAndDividendIncomeOperating_28ad823f-ab4c-4ab4-9694-128390aae794" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestAndDividendIncomeOperating"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestAndFeeIncomeLoansAndLeases_b6ace1ba-4489-40b5-b265-bd6a54fccbab" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestAndFeeIncomeLoansAndLeases"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestAndDividendIncomeOperating_28ad823f-ab4c-4ab4-9694-128390aae794" xlink:to="loc_us-gaap_InterestAndFeeIncomeLoansAndLeases_b6ace1ba-4489-40b5-b265-bd6a54fccbab" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeSecuritiesTaxable_eea0b930-e3fa-4903-8f0b-dac593774d34" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestIncomeSecuritiesTaxable"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestAndDividendIncomeOperating_28ad823f-ab4c-4ab4-9694-128390aae794" xlink:to="loc_us-gaap_InterestIncomeSecuritiesTaxable_eea0b930-e3fa-4903-8f0b-dac593774d34" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeSecuritiesTaxExempt_b74d5df9-d780-4e66-89b2-e5a73d1e2973" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestIncomeSecuritiesTaxExempt"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestAndDividendIncomeOperating_28ad823f-ab4c-4ab4-9694-128390aae794" xlink:to="loc_us-gaap_InterestIncomeSecuritiesTaxExempt_b74d5df9-d780-4e66-89b2-e5a73d1e2973" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_InterestOnFederalFundsSoldAndOtherShortTermInvestments_e906adf4-e7a1-4fc1-a656-1844a05d9cd3" xlink:href="cass-20230331.xsd#cass_InterestOnFederalFundsSoldAndOtherShortTermInvestments"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestAndDividendIncomeOperating_28ad823f-ab4c-4ab4-9694-128390aae794" xlink:to="loc_cass_InterestOnFederalFundsSoldAndOtherShortTermInvestments_e906adf4-e7a1-4fc1-a656-1844a05d9cd3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoninterestExpense_276208ad-14d7-4ffd-ab1e-4e86a82edc38" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NoninterestExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LaborAndRelatedExpense_24a25a8d-c290-4f18-8584-22d6484f2a85" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LaborAndRelatedExpense"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NoninterestExpense_276208ad-14d7-4ffd-ab1e-4e86a82edc38" xlink:to="loc_us-gaap_LaborAndRelatedExpense_24a25a8d-c290-4f18-8584-22d6484f2a85" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OccupancyNet_9f6be1be-afb9-4a88-87c7-cdda3f474e30" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OccupancyNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NoninterestExpense_276208ad-14d7-4ffd-ab1e-4e86a82edc38" xlink:to="loc_us-gaap_OccupancyNet_9f6be1be-afb9-4a88-87c7-cdda3f474e30" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquipmentExpense_634b5726-6a5d-4103-a6e7-c62da05d3b2d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EquipmentExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NoninterestExpense_276208ad-14d7-4ffd-ab1e-4e86a82edc38" xlink:to="loc_us-gaap_EquipmentExpense_634b5726-6a5d-4103-a6e7-c62da05d3b2d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_71cceda4-abea-4016-806e-ef986060a4fb" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NoninterestExpense_276208ad-14d7-4ffd-ab1e-4e86a82edc38" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_71cceda4-abea-4016-806e-ef986060a4fb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoninterestExpense_3e322dc0-f98d-4d9e-bce9-9318a1300061" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherNoninterestExpense"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NoninterestExpense_276208ad-14d7-4ffd-ab1e-4e86a82edc38" xlink:to="loc_us-gaap_OtherNoninterestExpense_3e322dc0-f98d-4d9e-bce9-9318a1300061" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_67622fad-ee69-4666-be31-4948170f77fa" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_da1a9ebe-5b64-454c-bae5-9168884d116e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestExpense"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestIncomeExpenseNet_67622fad-ee69-4666-be31-4948170f77fa" xlink:to="loc_us-gaap_InterestExpense_da1a9ebe-5b64-454c-bae5-9168884d116e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestAndDividendIncomeOperating_17c268d3-38d3-4648-b663-7d9a2b18b183" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestAndDividendIncomeOperating"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestIncomeExpenseNet_67622fad-ee69-4666-be31-4948170f77fa" xlink:to="loc_us-gaap_InterestAndDividendIncomeOperating_17c268d3-38d3-4648-b663-7d9a2b18b183" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_f4f4e1f0-1be9-4b53-a75c-d35cfca0f8e5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Revenues"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoninterestIncome_3c4ecdd4-bcbd-4e0f-96b5-10ba4254cf6a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NoninterestIncome"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_f4f4e1f0-1be9-4b53-a75c-d35cfca0f8e5" xlink:to="loc_us-gaap_NoninterestIncome_3c4ecdd4-bcbd-4e0f-96b5-10ba4254cf6a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_248f0494-453d-4622-ba85-e0cef7dab269" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_f4f4e1f0-1be9-4b53-a75c-d35cfca0f8e5" xlink:to="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_248f0494-453d-4622-ba85-e0cef7dab269" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoninterestIncome_0ff28526-f868-4b18-bc94-c82e01437267" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NoninterestIncome"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_337bf3c8-1f14-4e40-a9f5-689b418c1bed" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NoninterestIncome_0ff28526-f868-4b18-bc94-c82e01437267" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_337bf3c8-1f14-4e40-a9f5-689b418c1bed" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueNotFromContractWithCustomerOther_7d48f7f5-8ac6-4ccc-ac28-c5a1ae3e0421" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RevenueNotFromContractWithCustomerOther"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NoninterestIncome_0ff28526-f868-4b18-bc94-c82e01437267" xlink:to="loc_us-gaap_RevenueNotFromContractWithCustomerOther_7d48f7f5-8ac6-4ccc-ac28-c5a1ae3e0421" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME" xlink:type="simple" xlink:href="cass-20230331.xsd#CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME"/>
  <link:calculationLink xlink:role="http://cassinfo.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_575643d5-3fe1-4d7b-81af-f121f75dec22" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_c8e274c5-0bc1-4bfd-a23c-92e44038c45c" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_575643d5-3fe1-4d7b-81af-f121f75dec22" xlink:to="loc_us-gaap_NetIncomeLoss_c8e274c5-0bc1-4bfd-a23c-92e44038c45c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax_1954d5f7-b23e-47e9-b3d0-d2ca9c0472fb" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_575643d5-3fe1-4d7b-81af-f121f75dec22" xlink:to="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax_1954d5f7-b23e-47e9-b3d0-d2ca9c0472fb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax_59416502-1f0f-4c07-bc12-8c537e361373" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_575643d5-3fe1-4d7b-81af-f121f75dec22" xlink:to="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax_59416502-1f0f-4c07-bc12-8c537e361373" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax_40dcace7-a16f-4b7e-97be-4c6e9d330dff" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_575643d5-3fe1-4d7b-81af-f121f75dec22" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax_40dcace7-a16f-4b7e-97be-4c6e9d330dff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax_851cc09b-5a10-4798-b256-ef223967c486" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_575643d5-3fe1-4d7b-81af-f121f75dec22" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax_851cc09b-5a10-4798-b256-ef223967c486" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_b3fd78ef-fc7a-454b-a92c-fa14ff2e3248" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_575643d5-3fe1-4d7b-81af-f121f75dec22" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_b3fd78ef-fc7a-454b-a92c-fa14ff2e3248" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="cass-20230331.xsd#CONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:calculationLink xlink:role="http://cassinfo.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_515f9344-752b-4d7c-9ba7-09382c565269" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_e0de51cf-b205-4ea5-96e7-91a0d2c0b507" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_515f9344-752b-4d7c-9ba7-09382c565269" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_e0de51cf-b205-4ea5-96e7-91a0d2c0b507" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_cd9ac642-37fb-4699-ab75-ddc92ea78e93" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_515f9344-752b-4d7c-9ba7-09382c565269" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_cd9ac642-37fb-4699-ab75-ddc92ea78e93" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_e52f7eb2-1b67-4ecf-807a-4d0a9623320e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_515f9344-752b-4d7c-9ba7-09382c565269" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_e52f7eb2-1b67-4ecf-807a-4d0a9623320e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_08f95566-5863-4dd0-8585-b7ae3a8bbc17" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_2f7761b4-d8a4-4747-8d73-ee46d3c97a02" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_08f95566-5863-4dd0-8585-b7ae3a8bbc17" xlink:to="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_2f7761b4-d8a4-4747-8d73-ee46d3c97a02" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_049dc9cf-ecdb-4adf-bba9-f70e0c6169f1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_08f95566-5863-4dd0-8585-b7ae3a8bbc17" xlink:to="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_049dc9cf-ecdb-4adf-bba9-f70e0c6169f1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_610e0e9f-abde-4ca1-8437-1be03c0431ee" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_08f95566-5863-4dd0-8585-b7ae3a8bbc17" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_610e0e9f-abde-4ca1-8437-1be03c0431ee" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_DecreaseIncreaseInPaymentsInAdvanceOfFunding_87f3a86f-c327-4726-a344-f24776e914db" xlink:href="cass-20230331.xsd#cass_DecreaseIncreaseInPaymentsInAdvanceOfFunding"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_08f95566-5863-4dd0-8585-b7ae3a8bbc17" xlink:to="loc_cass_DecreaseIncreaseInPaymentsInAdvanceOfFunding_87f3a86f-c327-4726-a344-f24776e914db" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromLoansAndLeases_b6a4ee44-f728-4472-a682-ac60a0e818b5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsForProceedsFromLoansAndLeases"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_08f95566-5863-4dd0-8585-b7ae3a8bbc17" xlink:to="loc_us-gaap_PaymentsForProceedsFromLoansAndLeases_b6a4ee44-f728-4472-a682-ac60a0e818b5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireLifeInsurancePolicies_dd3c0006-fae1-4e7f-879f-11081c041b27" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsToAcquireLifeInsurancePolicies"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_08f95566-5863-4dd0-8585-b7ae3a8bbc17" xlink:to="loc_us-gaap_PaymentsToAcquireLifeInsurancePolicies_dd3c0006-fae1-4e7f-879f-11081c041b27" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_494fb270-ff33-44d5-950f-2f708b6d31ac" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_08f95566-5863-4dd0-8585-b7ae3a8bbc17" xlink:to="loc_us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_494fb270-ff33-44d5-950f-2f708b6d31ac" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_22602b96-b9cd-4d3b-89b1-b0a5df8928ab" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_b3e8e025-7b50-4c1e-89e2-4c120131fe3d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_22602b96-b9cd-4d3b-89b1-b0a5df8928ab" xlink:to="loc_us-gaap_NetIncomeLoss_b3e8e025-7b50-4c1e-89e2-4c120131fe3d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_57d78e47-38a0-4092-b706-396d52ba2f24" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_22602b96-b9cd-4d3b-89b1-b0a5df8928ab" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_57d78e47-38a0-4092-b706-396d52ba2f24" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_4d425fa6-0338-4827-a563-646447361167" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_22602b96-b9cd-4d3b-89b1-b0a5df8928ab" xlink:to="loc_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_4d425fa6-0338-4827-a563-646447361167" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Depreciation_20a4cf37-67b4-4232-8599-1b0d3d839d54" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Depreciation"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_22602b96-b9cd-4d3b-89b1-b0a5df8928ab" xlink:to="loc_us-gaap_Depreciation_20a4cf37-67b4-4232-8599-1b0d3d839d54" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtAndEquitySecuritiesGainLoss_75a28a29-74ae-407e-bc64-935b646e1872" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtAndEquitySecuritiesGainLoss"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_22602b96-b9cd-4d3b-89b1-b0a5df8928ab" xlink:to="loc_us-gaap_DebtAndEquitySecuritiesGainLoss_75a28a29-74ae-407e-bc64-935b646e1872" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForLoanLossesExpensed_78451836-1ca4-4faf-9ff8-fa80db10a499" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProvisionForLoanLossesExpensed"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_22602b96-b9cd-4d3b-89b1-b0a5df8928ab" xlink:to="loc_us-gaap_ProvisionForLoanLossesExpensed_78451836-1ca4-4faf-9ff8-fa80db10a499" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_c1442baa-0baa-4e65-82d0-02bd4ccfdb80" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherOperatingActivitiesCashFlowStatement"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_22602b96-b9cd-4d3b-89b1-b0a5df8928ab" xlink:to="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_c1442baa-0baa-4e65-82d0-02bd4ccfdb80" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPensionPlanObligations_62e92467-2284-4f55-b426-4e3696de28ee" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInPensionPlanObligations"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_22602b96-b9cd-4d3b-89b1-b0a5df8928ab" xlink:to="loc_us-gaap_IncreaseDecreaseInPensionPlanObligations_62e92467-2284-4f55-b426-4e3696de28ee" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_dad641ca-1432-4a54-bf07-3b0236c82a76" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_22602b96-b9cd-4d3b-89b1-b0a5df8928ab" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_dad641ca-1432-4a54-bf07-3b0236c82a76" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_183c1c62-3467-4b73-a87f-169fba9c76fb" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_22602b96-b9cd-4d3b-89b1-b0a5df8928ab" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_183c1c62-3467-4b73-a87f-169fba9c76fb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_0f7f1ee8-3620-44e4-9dc0-a4156ef864ea" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_22602b96-b9cd-4d3b-89b1-b0a5df8928ab" xlink:to="loc_us-gaap_ShareBasedCompensation_0f7f1ee8-3620-44e4-9dc0-a4156ef864ea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_565f3724-bbb2-414b-ac70-13de2dcd568c" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_NetDecreaseInNoninterestBearingDemandDeposits_dc340a4e-489d-4ed0-b8f4-b1c91bcbcaa1" xlink:href="cass-20230331.xsd#cass_NetDecreaseInNoninterestBearingDemandDeposits"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_565f3724-bbb2-414b-ac70-13de2dcd568c" xlink:to="loc_cass_NetDecreaseInNoninterestBearingDemandDeposits_dc340a4e-489d-4ed0-b8f4-b1c91bcbcaa1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_IncreaseDecreaseInInterestBearingDemandAndSavingsDeposits_42d6af92-7fca-4be8-98fb-26fe74bbd450" xlink:href="cass-20230331.xsd#cass_IncreaseDecreaseInInterestBearingDemandAndSavingsDeposits"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_565f3724-bbb2-414b-ac70-13de2dcd568c" xlink:to="loc_cass_IncreaseDecreaseInInterestBearingDemandAndSavingsDeposits_42d6af92-7fca-4be8-98fb-26fe74bbd450" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInTimeDeposits_58eb5960-67f6-4244-854c-726f76779021" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInTimeDeposits"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_565f3724-bbb2-414b-ac70-13de2dcd568c" xlink:to="loc_us-gaap_IncreaseDecreaseInTimeDeposits_58eb5960-67f6-4244-854c-726f76779021" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_NetIncreaseDecreaseInAccountsAndDraftsReceivableFromCustomers_7694f00d-4a21-4a9c-a443-1f5160a85f32" xlink:href="cass-20230331.xsd#cass_NetIncreaseDecreaseInAccountsAndDraftsReceivableFromCustomers"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_565f3724-bbb2-414b-ac70-13de2dcd568c" xlink:to="loc_cass_NetIncreaseDecreaseInAccountsAndDraftsReceivableFromCustomers_7694f00d-4a21-4a9c-a443-1f5160a85f32" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_IncreaseInAccountsAndDraftsPayable_4fb667f2-c9ef-440d-a157-e2387dd148f0" xlink:href="cass-20230331.xsd#cass_IncreaseInAccountsAndDraftsPayable"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_565f3724-bbb2-414b-ac70-13de2dcd568c" xlink:to="loc_cass_IncreaseInAccountsAndDraftsPayable_4fb667f2-c9ef-440d-a157-e2387dd148f0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_173940fb-c24f-4dba-9852-ebf030eb35e4" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_565f3724-bbb2-414b-ac70-13de2dcd568c" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_173940fb-c24f-4dba-9852-ebf030eb35e4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_7d3b251f-9239-4e0b-9222-7304443459bb" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_565f3724-bbb2-414b-ac70-13de2dcd568c" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_7d3b251f-9239-4e0b-9222-7304443459bb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_e18e0871-1b02-412d-8ca5-eaadb8bca19f" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_565f3724-bbb2-414b-ac70-13de2dcd568c" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_e18e0871-1b02-412d-8ca5-eaadb8bca19f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/IntangibleAssetsScheduleofIntangibleAssetsandGoodwillDetails" xlink:type="simple" xlink:href="cass-20230331.xsd#IntangibleAssetsScheduleofIntangibleAssetsandGoodwillDetails"/>
  <link:calculationLink xlink:role="http://cassinfo.com/role/IntangibleAssetsScheduleofIntangibleAssetsandGoodwillDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetIncludingGoodwill_d29cc027-c184-4616-87cc-58099956c389" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IntangibleAssetsNetIncludingGoodwill"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillGross_80ceb9d2-1e79-4377-a7a2-db255aa3ed84" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_GoodwillGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetIncludingGoodwill_d29cc027-c184-4616-87cc-58099956c389" xlink:to="loc_us-gaap_GoodwillGross_80ceb9d2-1e79-4377-a7a2-db255aa3ed84" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_6b9205b6-8c0b-4bd3-8030-d3f82905d50e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetIncludingGoodwill_d29cc027-c184-4616-87cc-58099956c389" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_6b9205b6-8c0b-4bd3-8030-d3f82905d50e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/EarningsPerShareDetails" xlink:type="simple" xlink:href="cass-20230331.xsd#EarningsPerShareDetails"/>
  <link:calculationLink xlink:role="http://cassinfo.com/role/EarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_af0e851d-7b6b-4fc4-9c60-45847efa6444" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_2b1850d3-7bae-4526-af0f-da1a0b279233" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_af0e851d-7b6b-4fc4-9c60-45847efa6444" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_2b1850d3-7bae-4526-af0f-da1a0b279233" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_b7952886-9a38-4b47-b524-307230ab7770" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_af0e851d-7b6b-4fc4-9c60-45847efa6444" xlink:to="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_b7952886-9a38-4b47-b524-307230ab7770" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/DefinedPensionPlansScheduleofNetPeriodicPensionCostsDetails" xlink:type="simple" xlink:href="cass-20230331.xsd#DefinedPensionPlansScheduleofNetPeriodicPensionCostsDetails"/>
  <link:calculationLink xlink:role="http://cassinfo.com/role/DefinedPensionPlansScheduleofNetPeriodicPensionCostsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_d693a129-56db-43a4-954b-bf88cd9fec09" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_19da8510-8f64-4d78-b237-711898af92d5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DefinedBenefitPlanInterestCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_d693a129-56db-43a4-954b-bf88cd9fec09" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_19da8510-8f64-4d78-b237-711898af92d5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_e269e9f2-46a7-43bb-8de0-2b9a58f0b58b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_d693a129-56db-43a4-954b-bf88cd9fec09" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_e269e9f2-46a7-43bb-8de0-2b9a58f0b58b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_e08ee229-f51b-499f-996b-51ac4483e0c1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_d693a129-56db-43a4-954b-bf88cd9fec09" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_e08ee229-f51b-499f-996b-51ac4483e0c1" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/InvestmentinSecuritiesScheduleofInvestmentSecuritiesDetails" xlink:type="simple" xlink:href="cass-20230331.xsd#InvestmentinSecuritiesScheduleofInvestmentSecuritiesDetails"/>
  <link:calculationLink xlink:role="http://cassinfo.com/role/InvestmentinSecuritiesScheduleofInvestmentSecuritiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss_4fb3e230-261b-4964-b498-4b309a42ace3" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_c3d27d95-af52-4238-9743-8f1a9df455f8" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss_4fb3e230-261b-4964-b498-4b309a42ace3" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_c3d27d95-af52-4238-9743-8f1a9df455f8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_1eeda1e4-51d0-4b78-bc99-e6cbc4459371" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss_4fb3e230-261b-4964-b498-4b309a42ace3" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_1eeda1e4-51d0-4b78-bc99-e6cbc4459371" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_447592d2-357c-4ec6-b4f0-089e8e674110" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss_4fb3e230-261b-4964-b498-4b309a42ace3" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_447592d2-357c-4ec6-b4f0-089e8e674110" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/InvestmentinSecuritiesScheduleoftheFairValuesofSecuritieswithUnrealizedLossesDetails" xlink:type="simple" xlink:href="cass-20230331.xsd#InvestmentinSecuritiesScheduleoftheFairValuesofSecuritieswithUnrealizedLossesDetails"/>
  <link:calculationLink xlink:role="http://cassinfo.com/role/InvestmentinSecuritiesScheduleoftheFairValuesofSecuritieswithUnrealizedLossesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss_9009c589-3d9f-4cc9-b823-273c7c26fef0" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_fdc6e93d-cd28-4fb8-a20b-0f018550f2f2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss_9009c589-3d9f-4cc9-b823-273c7c26fef0" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_fdc6e93d-cd28-4fb8-a20b-0f018550f2f2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_2c2b84d6-2b73-4632-a58e-f10c90779817" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss_9009c589-3d9f-4cc9-b823-273c7c26fef0" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_2c2b84d6-2b73-4632-a58e-f10c90779817" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition_5806f3c0-c632-4955-a556-e126d2d2412d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months_801fda6a-6748-4cc8-addf-f66c4261d644" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition_5806f3c0-c632-4955-a556-e126d2d2412d" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months_801fda6a-6748-4cc8-addf-f66c4261d644" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger_670966ab-31cd-44f7-ac49-513f5f1e14ca" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition_5806f3c0-c632-4955-a556-e126d2d2412d" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger_670966ab-31cd-44f7-ac49-513f5f1e14ca" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/InvestmentinSecuritiesScheduleofAmortizedCostandFairValueofInvestmentSecuritiesDetails" xlink:type="simple" xlink:href="cass-20230331.xsd#InvestmentinSecuritiesScheduleofAmortizedCostandFairValueofInvestmentSecuritiesDetails"/>
  <link:calculationLink xlink:role="http://cassinfo.com/role/InvestmentinSecuritiesScheduleofAmortizedCostandFairValueofInvestmentSecuritiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_f1a5cfec-e802-4fdb-bc65-33366b35baf6" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_00abb92d-c4ce-4602-aa07-e690c2f204a4" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_f1a5cfec-e802-4fdb-bc65-33366b35baf6" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_00abb92d-c4ce-4602-aa07-e690c2f204a4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue_16b8669d-42ac-4ded-8e12-4f6fea9dc389" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_f1a5cfec-e802-4fdb-bc65-33366b35baf6" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue_16b8669d-42ac-4ded-8e12-4f6fea9dc389" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue_642b2f49-37b1-461b-985f-06ded5adcd97" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_f1a5cfec-e802-4fdb-bc65-33366b35baf6" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue_642b2f49-37b1-461b-985f-06ded5adcd97" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue_15cc607e-be7d-45d8-891a-47015f9a3451" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_f1a5cfec-e802-4fdb-bc65-33366b35baf6" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue_15cc607e-be7d-45d8-891a-47015f9a3451" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss_9ec8b998-6f05-49d9-8a6d-276adbf3232d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost_195079e1-8c7b-4286-9016-1463ae0d51d9" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss_9ec8b998-6f05-49d9-8a6d-276adbf3232d" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost_195079e1-8c7b-4286-9016-1463ae0d51d9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost_54c2a674-b711-437d-9441-d60af1c773d5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss_9ec8b998-6f05-49d9-8a6d-276adbf3232d" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost_54c2a674-b711-437d-9441-d60af1c773d5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_b72667c9-1565-4847-97ef-f640c723c898" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss_9ec8b998-6f05-49d9-8a6d-276adbf3232d" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_b72667c9-1565-4847-97ef-f640c723c898" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost_693cdf85-1d9f-45e5-981f-95a7c988b6d6" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss_9ec8b998-6f05-49d9-8a6d-276adbf3232d" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost_693cdf85-1d9f-45e5-981f-95a7c988b6d6" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/FairValueofFinancialInstrumentsDetails" xlink:type="simple" xlink:href="cass-20230331.xsd#FairValueofFinancialInstrumentsDetails"/>
  <link:calculationLink xlink:role="http://cassinfo.com/role/FairValueofFinancialInstrumentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosure_28e4feac-4cdd-4da1-a536-78c9a20c6ed3" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepositsFairValueDisclosure_8ac9ea95-cc83-4d23-b962-8315914e2475" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DepositsFairValueDisclosure"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosure_28e4feac-4cdd-4da1-a536-78c9a20c6ed3" xlink:to="loc_us-gaap_DepositsFairValueDisclosure_8ac9ea95-cc83-4d23-b962-8315914e2475" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableFairValueDisclosure_abd2bd36-e47f-439b-bfcd-bb35f7bc024b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccountsPayableFairValueDisclosure"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosure_28e4feac-4cdd-4da1-a536-78c9a20c6ed3" xlink:to="loc_us-gaap_AccountsPayableFairValueDisclosure_abd2bd36-e47f-439b-bfcd-bb35f7bc024b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesFairValueDisclosure_ec0328ab-204a-4370-8e28-8ca7b2d44683" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccruedLiabilitiesFairValueDisclosure"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosure_28e4feac-4cdd-4da1-a536-78c9a20c6ed3" xlink:to="loc_us-gaap_AccruedLiabilitiesFairValueDisclosure_ec0328ab-204a-4370-8e28-8ca7b2d44683" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_d635a341-ffd1-4dbe-a2b8-6a367ed013e5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_981d96dc-f29d-4c64-99cd-6e0645daf996" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_d635a341-ffd1-4dbe-a2b8-6a367ed013e5" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_981d96dc-f29d-4c64-99cd-6e0645daf996" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_48ca8868-59ad-4f7b-b8b8-b473d813c0fb" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_d635a341-ffd1-4dbe-a2b8-6a367ed013e5" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_48ca8868-59ad-4f7b-b8b8-b473d813c0fb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansReceivableFairValueDisclosure_a93c5d5c-69be-4d57-bb63-e40f0cab8d17" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LoansReceivableFairValueDisclosure"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_d635a341-ffd1-4dbe-a2b8-6a367ed013e5" xlink:to="loc_us-gaap_LoansReceivableFairValueDisclosure_a93c5d5c-69be-4d57-bb63-e40f0cab8d17" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_AccruedInterestReceivableFairValueDisclosure_45ac0f6f-0641-4fad-a28a-035c706174a6" xlink:href="cass-20230331.xsd#cass_AccruedInterestReceivableFairValueDisclosure"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_d635a341-ffd1-4dbe-a2b8-6a367ed013e5" xlink:to="loc_cass_AccruedInterestReceivableFairValueDisclosure_45ac0f6f-0641-4fad-a28a-035c706174a6" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/RevenuefromContractswithCustomersDetails" xlink:type="simple" xlink:href="cass-20230331.xsd#RevenuefromContractswithCustomersDetails"/>
  <link:calculationLink xlink:role="http://cassinfo.com/role/RevenuefromContractswithCustomersDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoninterestIncome_c4836dd9-a50a-4899-b271-958b322914c2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NoninterestIncome"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueNotFromContractWithCustomer_60c0de57-76b3-4353-936c-e8c4054cfdaa" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RevenueNotFromContractWithCustomer"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NoninterestIncome_c4836dd9-a50a-4899-b271-958b322914c2" xlink:to="loc_us-gaap_RevenueNotFromContractWithCustomer_60c0de57-76b3-4353-936c-e8c4054cfdaa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_39ce803d-ad57-44aa-b371-717957994759" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NoninterestIncome_c4836dd9-a50a-4899-b271-958b322914c2" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_39ce803d-ad57-44aa-b371-717957994759" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/LeasesScheduleofOperatingLeaseMaturityDetails" xlink:type="simple" xlink:href="cass-20230331.xsd#LeasesScheduleofOperatingLeaseMaturityDetails"/>
  <link:calculationLink xlink:role="http://cassinfo.com/role/LeasesScheduleofOperatingLeaseMaturityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_3594fdd3-7bd2-47c7-b997-dc4aa26774d6" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_50b1bd93-92e9-42ed-9738-b02a19d7ea8f" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_3594fdd3-7bd2-47c7-b997-dc4aa26774d6" xlink:to="loc_us-gaap_OperatingLeaseLiability_50b1bd93-92e9-42ed-9738-b02a19d7ea8f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_88a78dae-8bd9-439a-9223-6831eeecf54b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_3594fdd3-7bd2-47c7-b997-dc4aa26774d6" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_88a78dae-8bd9-439a-9223-6831eeecf54b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cassinfo.com/role/LeasesScheduleofOperatingLeaseMaturityDetails_1" xlink:type="simple" xlink:href="cass-20230331.xsd#LeasesScheduleofOperatingLeaseMaturityDetails_1"/>
  <link:calculationLink xlink:role="http://cassinfo.com/role/LeasesScheduleofOperatingLeaseMaturityDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_43aa33be-efd0-418c-a305-7bed0b0eaf89" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_bf6b38af-3bf9-49e3-bcf8-b24ce083f0ae" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_43aa33be-efd0-418c-a305-7bed0b0eaf89" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_bf6b38af-3bf9-49e3-bcf8-b24ce083f0ae" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_07ef85d3-c17b-4d0e-861e-98d2d27ceff1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_43aa33be-efd0-418c-a305-7bed0b0eaf89" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_07ef85d3-c17b-4d0e-861e-98d2d27ceff1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_8b9f88c3-1c63-4a23-95be-e6660bc3aac2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_43aa33be-efd0-418c-a305-7bed0b0eaf89" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_8b9f88c3-1c63-4a23-95be-e6660bc3aac2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_c94e15a5-7211-4029-ad6d-8b53231ad3de" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_43aa33be-efd0-418c-a305-7bed0b0eaf89" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_c94e15a5-7211-4029-ad6d-8b53231ad3de" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_013aedc5-f987-43da-82e3-e6fee7988eae" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_43aa33be-efd0-418c-a305-7bed0b0eaf89" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_013aedc5-f987-43da-82e3-e6fee7988eae" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cass_LesseeOperatingLeaseLiabilityToBePaidDueAfterYearFour_7437e4c2-4445-4b77-b84d-4249dc19be89" xlink:href="cass-20230331.xsd#cass_LesseeOperatingLeaseLiabilityToBePaidDueAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_43aa33be-efd0-418c-a305-7bed0b0eaf89" xlink:to="loc_cass_LesseeOperatingLeaseLiabilityToBePaidDueAfterYearFour_7437e4c2-4445-4b77-b84d-4249dc19be89" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
