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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2024 Workiva-->
<!--r:b9adb089-8792-42fb-869d-07605289357e,g:079553c0-d4a4-41d4-8237-a2d3d491838b-->
<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://www.cbiz.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUnaudited" xlink:type="simple" xlink:href="cbz-20240630.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETSUnaudited"/>
  <link:calculationLink xlink:role="http://www.cbiz.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsNoncurrent_84600e57-3784-41d1-9a53-d79301dcdd2b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_a38ee733-6293-4ed0-ab86-e2ee7894c6ef" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_84600e57-3784-41d1-9a53-d79301dcdd2b" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_a38ee733-6293-4ed0-ab86-e2ee7894c6ef" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetIncludingGoodwill_b8b9a9e2-4731-4ef2-a427-998018fb0fda" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IntangibleAssetsNetIncludingGoodwill"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_84600e57-3784-41d1-9a53-d79301dcdd2b" xlink:to="loc_us-gaap_IntangibleAssetsNetIncludingGoodwill_b8b9a9e2-4731-4ef2-a427-998018fb0fda" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationPlanAssets_56949be4-2547-4c12-979f-4c8cf797ff76" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredCompensationPlanAssets"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_84600e57-3784-41d1-9a53-d79301dcdd2b" xlink:to="loc_us-gaap_DeferredCompensationPlanAssets_56949be4-2547-4c12-979f-4c8cf797ff76" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_6ac03c4e-ad95-40b4-9bd7-9aa41575c1d1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_84600e57-3784-41d1-9a53-d79301dcdd2b" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_6ac03c4e-ad95-40b4-9bd7-9aa41575c1d1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_af065d7f-6ec0-4261-87bb-8e4a3601b192" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_84600e57-3784-41d1-9a53-d79301dcdd2b" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_af065d7f-6ec0-4261-87bb-8e4a3601b192" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_3221f50e-cb8c-4fc5-b4d0-fe37d5e1269d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_3cce94a0-c425-41ca-bd9c-50a0b7c9e8b9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_3221f50e-cb8c-4fc5-b4d0-fe37d5e1269d" xlink:to="loc_us-gaap_Liabilities_3cce94a0-c425-41ca-bd9c-50a0b7c9e8b9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_e575e3a1-af46-4a54-bffd-610d406d1dfd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_3221f50e-cb8c-4fc5-b4d0-fe37d5e1269d" xlink:to="loc_us-gaap_StockholdersEquity_e575e3a1-af46-4a54-bffd-610d406d1dfd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrent_91f792d8-f750-4610-bfec-58ee41ef3f0e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_6bab0948-6a3e-4df4-8ba8-04cf3f704245" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_91f792d8-f750-4610-bfec-58ee41ef3f0e" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_6bab0948-6a3e-4df4-8ba8-04cf3f704245" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedIncomeTaxesNoncurrent_d3ae4a12-b094-4c83-99f3-62a5b49f8673" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccruedIncomeTaxesNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_91f792d8-f750-4610-bfec-58ee41ef3f0e" xlink:to="loc_us-gaap_AccruedIncomeTaxesNoncurrent_d3ae4a12-b094-4c83-99f3-62a5b49f8673" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_d3174734-e874-4bfe-9199-2e8ff6b8ecc4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_91f792d8-f750-4610-bfec-58ee41ef3f0e" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_d3174734-e874-4bfe-9199-2e8ff6b8ecc4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent_f37ab238-ceb8-495c-8bb3-36298592340c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_91f792d8-f750-4610-bfec-58ee41ef3f0e" xlink:to="loc_us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent_f37ab238-ceb8-495c-8bb3-36298592340c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent_307fc0dd-3088-4d9c-acea-9f656105f3be" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_91f792d8-f750-4610-bfec-58ee41ef3f0e" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent_307fc0dd-3088-4d9c-acea-9f656105f3be" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_c8dcee51-282b-4372-abe5-7fbb0a69c7d1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_91f792d8-f750-4610-bfec-58ee41ef3f0e" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_c8dcee51-282b-4372-abe5-7fbb0a69c7d1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_18f69633-f6fa-4ff7-8949-ba1ccc38dccd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_91f792d8-f750-4610-bfec-58ee41ef3f0e" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_18f69633-f6fa-4ff7-8949-ba1ccc38dccd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_71d461f4-32d7-4550-b2d9-c0065774c6de" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermLineOfCredit_d3d765ae-891c-4ef2-a319-e8786c385557" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermLineOfCredit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebtNoncurrent_71d461f4-32d7-4550-b2d9-c0065774c6de" xlink:to="loc_us-gaap_LongTermLineOfCredit_d3d765ae-891c-4ef2-a319-e8786c385557" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnamortizedDebtIssuanceExpense_296bc2fc-0e52-4d87-9fb0-8c9af03f898d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_UnamortizedDebtIssuanceExpense"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebtNoncurrent_71d461f4-32d7-4550-b2d9-c0065774c6de" xlink:to="loc_us-gaap_UnamortizedDebtIssuanceExpense_296bc2fc-0e52-4d87-9fb0-8c9af03f898d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbz_CurrentLiabilitiesBeforeClientFundObligations_317c4735-f09f-4fd1-9a21-2f813a44a391" xlink:href="cbz-20240630.xsd#cbz_CurrentLiabilitiesBeforeClientFundObligations"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_ad926f7b-ba6f-470c-a793-3a6c0091fda3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cbz_CurrentLiabilitiesBeforeClientFundObligations_317c4735-f09f-4fd1-9a21-2f813a44a391" xlink:to="loc_us-gaap_AccountsPayableCurrent_ad926f7b-ba6f-470c-a793-3a6c0091fda3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_f6a6b919-eaed-4cef-b3a2-aa92c10024b5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccruedIncomeTaxesCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cbz_CurrentLiabilitiesBeforeClientFundObligations_317c4735-f09f-4fd1-9a21-2f813a44a391" xlink:to="loc_us-gaap_AccruedIncomeTaxesCurrent_f6a6b919-eaed-4cef-b3a2-aa92c10024b5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_789c38f1-6966-485d-bcca-eec0d8509f6c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cbz_CurrentLiabilitiesBeforeClientFundObligations_317c4735-f09f-4fd1-9a21-2f813a44a391" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_789c38f1-6966-485d-bcca-eec0d8509f6c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_a5185d49-8eeb-4708-8880-daf67da54e05" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cbz_CurrentLiabilitiesBeforeClientFundObligations_317c4735-f09f-4fd1-9a21-2f813a44a391" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_a5185d49-8eeb-4708-8880-daf67da54e05" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_5130dd86-52fe-4c8a-908b-dd0a459a05e1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cbz_CurrentLiabilitiesBeforeClientFundObligations_317c4735-f09f-4fd1-9a21-2f813a44a391" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_5130dd86-52fe-4c8a-908b-dd0a459a05e1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_e953a1cb-b0e8-416f-bce4-5663d0e40fa5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cbz_CurrentLiabilitiesBeforeClientFundObligations_317c4735-f09f-4fd1-9a21-2f813a44a391" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_e953a1cb-b0e8-416f-bce4-5663d0e40fa5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbz_CurrentAssetsBeforeFundsHeldForClients_7e305b76-acd9-485e-9f6c-20a8d1234e28" xlink:href="cbz-20240630.xsd#cbz_CurrentAssetsBeforeFundsHeldForClients"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_d5260366-c20b-4df9-9f1c-ec8c5e8c6318" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cbz_CurrentAssetsBeforeFundsHeldForClients_7e305b76-acd9-485e-9f6c-20a8d1234e28" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_d5260366-c20b-4df9-9f1c-ec8c5e8c6318" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashCurrent_df87b42f-5853-4695-8a7c-642f9a0034cd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestrictedCashCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cbz_CurrentAssetsBeforeFundsHeldForClients_7e305b76-acd9-485e-9f6c-20a8d1234e28" xlink:to="loc_us-gaap_RestrictedCashCurrent_df87b42f-5853-4695-8a7c-642f9a0034cd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_aa7c0b17-7bba-4c42-acf8-49729889e2bb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cbz_CurrentAssetsBeforeFundsHeldForClients_7e305b76-acd9-485e-9f6c-20a8d1234e28" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_aa7c0b17-7bba-4c42-acf8-49729889e2bb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_2db4d4d0-d8f5-45e2-8202-926045684cbe" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cbz_CurrentAssetsBeforeFundsHeldForClients_7e305b76-acd9-485e-9f6c-20a8d1234e28" xlink:to="loc_us-gaap_OtherAssetsCurrent_2db4d4d0-d8f5-45e2-8202-926045684cbe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_bdbd51a7-391a-47a2-9c39-693e64f02b69" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbz_CurrentLiabilitiesBeforeClientFundObligations_48102666-87f3-42ec-bae3-a524c68d83a2" xlink:href="cbz-20240630.xsd#cbz_CurrentLiabilitiesBeforeClientFundObligations"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_bdbd51a7-391a-47a2-9c39-693e64f02b69" xlink:to="loc_cbz_CurrentLiabilitiesBeforeClientFundObligations_48102666-87f3-42ec-bae3-a524c68d83a2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbz_ClientFundObligations_20a3ffde-ffde-433a-99f2-8a79443ee20e" xlink:href="cbz-20240630.xsd#cbz_ClientFundObligations"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_bdbd51a7-391a-47a2-9c39-693e64f02b69" xlink:to="loc_cbz_ClientFundObligations_20a3ffde-ffde-433a-99f2-8a79443ee20e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_3f96d604-205d-4daa-a58d-cb54581e272a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_076a0c6d-b7ec-436d-98f3-e5ff5e09c46b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_3f96d604-205d-4daa-a58d-cb54581e272a" xlink:to="loc_us-gaap_LiabilitiesCurrent_076a0c6d-b7ec-436d-98f3-e5ff5e09c46b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrent_5e5da9c6-ebba-41ff-a2d4-8b192eb63805" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_3f96d604-205d-4daa-a58d-cb54581e272a" xlink:to="loc_us-gaap_LiabilitiesNoncurrent_5e5da9c6-ebba-41ff-a2d4-8b192eb63805" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_9c243031-ae8a-42ef-9383-8e9c5f47a5a3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_4bedade5-5555-4546-9cb1-61c99bd94929" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_9c243031-ae8a-42ef-9383-8e9c5f47a5a3" xlink:to="loc_us-gaap_CommonStockValue_4bedade5-5555-4546-9cb1-61c99bd94929" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_a03b095a-7702-4479-aedf-d3e338e2e88c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_9c243031-ae8a-42ef-9383-8e9c5f47a5a3" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_a03b095a-7702-4479-aedf-d3e338e2e88c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_0ed6c00f-edb8-4235-92fe-9762efe445e7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_9c243031-ae8a-42ef-9383-8e9c5f47a5a3" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_0ed6c00f-edb8-4235-92fe-9762efe445e7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonValue_12f2ebf6-527a-4863-bc03-403e4c0a4acb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TreasuryStockCommonValue"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_9c243031-ae8a-42ef-9383-8e9c5f47a5a3" xlink:to="loc_us-gaap_TreasuryStockCommonValue_12f2ebf6-527a-4863-bc03-403e4c0a4acb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_ad28135f-4f4a-4e7f-b3e5-2d0bba190ee5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_9c243031-ae8a-42ef-9383-8e9c5f47a5a3" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_ad28135f-4f4a-4e7f-b3e5-2d0bba190ee5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_a45eb712-c5dc-4d09-9fa6-b7fec186c1b3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_4045be96-ec3d-4316-b8b1-a8ac246d1307" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_a45eb712-c5dc-4d09-9fa6-b7fec186c1b3" xlink:to="loc_us-gaap_AssetsCurrent_4045be96-ec3d-4316-b8b1-a8ac246d1307" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsNoncurrent_628c28ed-4bd4-4780-9da5-ee4082e9e5fa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_a45eb712-c5dc-4d09-9fa6-b7fec186c1b3" xlink:to="loc_us-gaap_AssetsNoncurrent_628c28ed-4bd4-4780-9da5-ee4082e9e5fa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_3c643bf6-5ea2-46ab-a254-8b8ebd7a679c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbz_CurrentAssetsBeforeFundsHeldForClients_3311b3b7-bdea-480a-a1f0-fe510e702405" xlink:href="cbz-20240630.xsd#cbz_CurrentAssetsBeforeFundsHeldForClients"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_3c643bf6-5ea2-46ab-a254-8b8ebd7a679c" xlink:to="loc_cbz_CurrentAssetsBeforeFundsHeldForClients_3311b3b7-bdea-480a-a1f0-fe510e702405" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FundsHeldForClients_271200b3-8342-4493-9093-90132f46cc48" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FundsHeldForClients"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_3c643bf6-5ea2-46ab-a254-8b8ebd7a679c" xlink:to="loc_us-gaap_FundsHeldForClients_271200b3-8342-4493-9093-90132f46cc48" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.cbiz.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited" xlink:type="simple" xlink:href="cbz-20240630.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited"/>
  <link:calculationLink xlink:role="http://www.cbiz.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_40cfcfb3-eb8e-40c7-97d7-91a3d360a2be" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_2496a57c-8ab0-4fa4-bd38-0d5acaf741c2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_40cfcfb3-eb8e-40c7-97d7-91a3d360a2be" xlink:to="loc_us-gaap_NetIncomeLoss_2496a57c-8ab0-4fa4-bd38-0d5acaf741c2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_d1474cd4-7bae-4c5d-ab49-bf0228c2e7ce" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_40cfcfb3-eb8e-40c7-97d7-91a3d360a2be" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_d1474cd4-7bae-4c5d-ab49-bf0228c2e7ce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_ca3bb191-158b-467e-965c-330da6e9573d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GrossProfit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_c3425f89-0757-47c1-b0dd-72145bb3a764" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_GrossProfit_ca3bb191-158b-467e-965c-330da6e9573d" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_c3425f89-0757-47c1-b0dd-72145bb3a764" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_34888338-7168-4ceb-92f0-795ffdf596b0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CostOfRevenue"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_ca3bb191-158b-467e-965c-330da6e9573d" xlink:to="loc_us-gaap_CostOfRevenue_34888338-7168-4ceb-92f0-795ffdf596b0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_921bc9e0-8f9a-4ab4-a93f-49aada12bc93" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_f5d3afa3-b694-45b4-b70d-8e83b981adba" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_921bc9e0-8f9a-4ab4-a93f-49aada12bc93" xlink:to="loc_us-gaap_InterestExpenseNonoperating_f5d3afa3-b694-45b4-b70d-8e83b981adba" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal_622378f1-121d-42d8-88a3-d820f0225926" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_921bc9e0-8f9a-4ab4-a93f-49aada12bc93" xlink:to="loc_us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal_622378f1-121d-42d8-88a3-d820f0225926" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_90454ec7-5aa3-410f-a479-fb73c4131fb0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_921bc9e0-8f9a-4ab4-a93f-49aada12bc93" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_90454ec7-5aa3-410f-a479-fb73c4131fb0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_c7438f7c-844f-4ebc-b7ac-575fa5b5b7a0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_5ff60aaf-ceb1-4d2b-92b5-0e36a80a2a24" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_c7438f7c-844f-4ebc-b7ac-575fa5b5b7a0" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_5ff60aaf-ceb1-4d2b-92b5-0e36a80a2a24" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_517a263c-910a-4a98-b3d2-34e61ab27b80" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_c7438f7c-844f-4ebc-b7ac-575fa5b5b7a0" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_517a263c-910a-4a98-b3d2-34e61ab27b80" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_6882dbc1-3ff4-4008-98db-f0cc58ccb04e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_f8b46820-de39-4272-9573-613b7c71adac" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_6882dbc1-3ff4-4008-98db-f0cc58ccb04e" xlink:to="loc_us-gaap_OperatingIncomeLoss_f8b46820-de39-4272-9573-613b7c71adac" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_b004e75e-aba5-48e8-b49b-2c9ea7b6388a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_6882dbc1-3ff4-4008-98db-f0cc58ccb04e" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_b004e75e-aba5-48e8-b49b-2c9ea7b6388a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_17b85ed3-d58b-4412-8f1e-1887da307d6d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_8a08fc0d-ed6f-404d-bd79-620b43c23191" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_17b85ed3-d58b-4412-8f1e-1887da307d6d" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_8a08fc0d-ed6f-404d-bd79-620b43c23191" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_675b6cca-2016-48ad-93cf-bf4bb26bd64c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GrossProfit"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_17b85ed3-d58b-4412-8f1e-1887da307d6d" xlink:to="loc_us-gaap_GrossProfit_675b6cca-2016-48ad-93cf-bf4bb26bd64c" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.cbiz.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited" xlink:type="simple" xlink:href="cbz-20240630.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"/>
  <link:calculationLink xlink:role="http://www.cbiz.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_721c571f-668e-4806-8fc4-83ca770f6280" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCash_75ef644a-2edb-47e7-973b-8dabb19ec154" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestrictedCash"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_721c571f-668e-4806-8fc4-83ca770f6280" xlink:to="loc_us-gaap_RestrictedCash_75ef644a-2edb-47e7-973b-8dabb19ec154" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbz_CashEquivalentsIncludedInFundsHeldForClients_2e6c1c06-39da-4774-be40-7a813048ae34" xlink:href="cbz-20240630.xsd#cbz_CashEquivalentsIncludedInFundsHeldForClients"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_721c571f-668e-4806-8fc4-83ca770f6280" xlink:to="loc_cbz_CashEquivalentsIncludedInFundsHeldForClients_2e6c1c06-39da-4774-be40-7a813048ae34" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_5f50cb08-1a05-47d5-be8c-768b733e5c09" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_721c571f-668e-4806-8fc4-83ca770f6280" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_5f50cb08-1a05-47d5-be8c-768b733e5c09" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a210603b-dc42-4d9c-9228-775819088b16" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLongTermLinesOfCredit_5903602f-145d-4ac8-8bda-aba0adef5ede" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromLongTermLinesOfCredit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a210603b-dc42-4d9c-9228-775819088b16" xlink:to="loc_us-gaap_ProceedsFromLongTermLinesOfCredit_5903602f-145d-4ac8-8bda-aba0adef5ede" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermLinesOfCredit_38faaa4a-404e-4f04-811f-f5d0a8c19c92" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RepaymentsOfLongTermLinesOfCredit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a210603b-dc42-4d9c-9228-775819088b16" xlink:to="loc_us-gaap_RepaymentsOfLongTermLinesOfCredit_38faaa4a-404e-4f04-811f-f5d0a8c19c92" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_004a6560-43b9-4b7d-bd2b-72cbd740ec51" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a210603b-dc42-4d9c-9228-775819088b16" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_004a6560-43b9-4b7d-bd2b-72cbd740ec51" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbz_NetIncreaseDecreaseInClientFundsObligations_e311e387-942c-49c8-9d8f-5a64a0d840f6" xlink:href="cbz-20240630.xsd#cbz_NetIncreaseDecreaseInClientFundsObligations"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a210603b-dc42-4d9c-9228-775819088b16" xlink:to="loc_cbz_NetIncreaseDecreaseInClientFundsObligations_e311e387-942c-49c8-9d8f-5a64a0d840f6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_fe733ccc-6554-4b2e-a712-7d8f5f3f5237" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromStockOptionsExercised"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a210603b-dc42-4d9c-9228-775819088b16" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_fe733ccc-6554-4b2e-a712-7d8f5f3f5237" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbz_PaymentOfContingentConsiderationOfAcquisitions_657b9f5c-78b8-4e45-bb99-52980c72a8c4" xlink:href="cbz-20240630.xsd#cbz_PaymentOfContingentConsiderationOfAcquisitions"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a210603b-dc42-4d9c-9228-775819088b16" xlink:to="loc_cbz_PaymentOfContingentConsiderationOfAcquisitions_657b9f5c-78b8-4e45-bb99-52980c72a8c4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_052e79b8-9655-486b-a631-e853752bdade" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a210603b-dc42-4d9c-9228-775819088b16" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_052e79b8-9655-486b-a631-e853752bdade" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_d15068fc-95a9-4a2b-9f5e-ab89ca561e9f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b95bb647-29ff-46be-8e82-310c74ecc424" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_d15068fc-95a9-4a2b-9f5e-ab89ca561e9f" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b95bb647-29ff-46be-8e82-310c74ecc424" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_2f8cf1ab-dc52-40f7-aac9-88e9680cfc2d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_d15068fc-95a9-4a2b-9f5e-ab89ca561e9f" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_2f8cf1ab-dc52-40f7-aac9-88e9680cfc2d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_9decb863-3acc-4b4c-b73c-5fd0d46bb57b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_d15068fc-95a9-4a2b-9f5e-ab89ca561e9f" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_9decb863-3acc-4b4c-b73c-5fd0d46bb57b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d86db8f2-cfc9-4c8e-9753-2963ea993a4c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_eb361442-00e3-4ae4-b6b6-1ac2e82a7b3b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d86db8f2-cfc9-4c8e-9753-2963ea993a4c" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_eb361442-00e3-4ae4-b6b6-1ac2e82a7b3b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxesAndTaxCredits_4a9bcb1a-d972-4115-bec6-6461162091c4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredIncomeTaxesAndTaxCredits"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d86db8f2-cfc9-4c8e-9753-2963ea993a4c" xlink:to="loc_us-gaap_DeferredIncomeTaxesAndTaxCredits_4a9bcb1a-d972-4115-bec6-6461162091c4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbz_ProvisionForDoubtfulAccountsNetOfRecoveries_135c59ee-5eee-4a67-be04-d1d872cd11e7" xlink:href="cbz-20240630.xsd#cbz_ProvisionForDoubtfulAccountsNetOfRecoveries"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d86db8f2-cfc9-4c8e-9753-2963ea993a4c" xlink:to="loc_cbz_ProvisionForDoubtfulAccountsNetOfRecoveries_135c59ee-5eee-4a67-be04-d1d872cd11e7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_49bafe82-a199-4fb7-9e13-264a90bc4a58" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d86db8f2-cfc9-4c8e-9753-2963ea993a4c" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_49bafe82-a199-4fb7-9e13-264a90bc4a58" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_1110feb3-3c8f-4ba7-a37c-db1e45c6c715" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d86db8f2-cfc9-4c8e-9753-2963ea993a4c" xlink:to="loc_us-gaap_NetIncomeLoss_1110feb3-3c8f-4ba7-a37c-db1e45c6c715" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_ebcddd63-5192-49fc-a484-266a9733c78b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d86db8f2-cfc9-4c8e-9753-2963ea993a4c" xlink:to="loc_us-gaap_ShareBasedCompensation_ebcddd63-5192-49fc-a484-266a9733c78b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_e5094ec7-c67b-4aa3-b1c0-66a653739623" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d86db8f2-cfc9-4c8e-9753-2963ea993a4c" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_e5094ec7-c67b-4aa3-b1c0-66a653739623" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_684a35ab-7412-490e-80af-cd9d0bd8f6fc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d86db8f2-cfc9-4c8e-9753-2963ea993a4c" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_684a35ab-7412-490e-80af-cd9d0bd8f6fc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities_ed3082e0-7759-431c-ba78-b3a8fc76cd8b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d86db8f2-cfc9-4c8e-9753-2963ea993a4c" xlink:to="loc_us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities_ed3082e0-7759-431c-ba78-b3a8fc76cd8b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_3bbad0f2-5165-4dc3-9c38-6077bc3a2ed4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherOperatingActivitiesCashFlowStatement"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d86db8f2-cfc9-4c8e-9753-2963ea993a4c" xlink:to="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_3bbad0f2-5165-4dc3-9c38-6077bc3a2ed4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_979bf0c3-79e0-4817-8903-9fad375392ca" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d86db8f2-cfc9-4c8e-9753-2963ea993a4c" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_979bf0c3-79e0-4817-8903-9fad375392ca" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_62d55412-9671-4286-ba1a-d8811e9f0b9d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d86db8f2-cfc9-4c8e-9753-2963ea993a4c" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_62d55412-9671-4286-ba1a-d8811e9f0b9d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_c7254c46-6f9e-40eb-b356-93481d0ea366" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d86db8f2-cfc9-4c8e-9753-2963ea993a4c" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_c7254c46-6f9e-40eb-b356-93481d0ea366" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal_241edd0e-ccab-41da-91be-2af51188abfe" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal"/>
    <link:calculationArc order="14" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d86db8f2-cfc9-4c8e-9753-2963ea993a4c" xlink:to="loc_us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal_241edd0e-ccab-41da-91be-2af51188abfe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_332556e3-87cd-4e27-ab3d-18557c6062cc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments_f585cede-7751-40bf-9d11-652d7383d5fd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_332556e3-87cd-4e27-ab3d-18557c6062cc" xlink:to="loc_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments_f585cede-7751-40bf-9d11-652d7383d5fd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_67ea76da-6ce8-4196-acde-dd614f753ad7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_332556e3-87cd-4e27-ab3d-18557c6062cc" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_67ea76da-6ce8-4196-acde-dd614f753ad7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireInvestments_e71da6a9-1782-42e1-9ca8-08df97c8a207" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToAcquireInvestments"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_332556e3-87cd-4e27-ab3d-18557c6062cc" xlink:to="loc_us-gaap_PaymentsToAcquireInvestments_e71da6a9-1782-42e1-9ca8-08df97c8a207" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDivestitureOfBusinesses_5e1c321b-8d55-40b4-8f49-e4f71b5f0cb7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromDivestitureOfBusinesses"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_332556e3-87cd-4e27-ab3d-18557c6062cc" xlink:to="loc_us-gaap_ProceedsFromDivestitureOfBusinesses_5e1c321b-8d55-40b4-8f49-e4f71b5f0cb7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_c4f012d1-f428-42bb-9b34-5c44eae31199" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_332556e3-87cd-4e27-ab3d-18557c6062cc" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_c4f012d1-f428-42bb-9b34-5c44eae31199" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_2817ffb7-c27c-46f3-ba4a-c88b6096e6c5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_332556e3-87cd-4e27-ab3d-18557c6062cc" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_2817ffb7-c27c-46f3-ba4a-c88b6096e6c5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbz_IncreaseDecreaseInFundsHeldForClientInvestingActivities_12c08d0b-f4f4-4bea-b188-66e8da4c8b50" xlink:href="cbz-20240630.xsd#cbz_IncreaseDecreaseInFundsHeldForClientInvestingActivities"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_332556e3-87cd-4e27-ab3d-18557c6062cc" xlink:to="loc_cbz_IncreaseDecreaseInFundsHeldForClientInvestingActivities_12c08d0b-f4f4-4bea-b188-66e8da4c8b50" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.cbiz.com/role/ACCOUNTSRECEIVABLENETScheduleofAccountsReceivableNetDetails" xlink:type="simple" xlink:href="cbz-20240630.xsd#ACCOUNTSRECEIVABLENETScheduleofAccountsReceivableNetDetails"/>
  <link:calculationLink xlink:role="http://www.cbiz.com/role/ACCOUNTSRECEIVABLENETScheduleofAccountsReceivableNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableGrossCurrent_3b99ce28-23dd-4da2-9cef-697703c75349" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsReceivableGrossCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BilledContractReceivables_cd752b3a-54c7-46b9-8bb0-da2d9fd69e13" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BilledContractReceivables"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsReceivableGrossCurrent_3b99ce28-23dd-4da2-9cef-697703c75349" xlink:to="loc_us-gaap_BilledContractReceivables_cd752b3a-54c7-46b9-8bb0-da2d9fd69e13" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnbilledReceivablesCurrent_e0e876db-7e85-4f38-85e6-c1f486b4c515" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_UnbilledReceivablesCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsReceivableGrossCurrent_3b99ce28-23dd-4da2-9cef-697703c75349" xlink:to="loc_us-gaap_UnbilledReceivablesCurrent_e0e876db-7e85-4f38-85e6-c1f486b4c515" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_e6fbc40a-30d8-487b-989a-4fe5ff26f175" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableGrossCurrent_bfd14a0d-3126-45d7-afce-15f854957788" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsReceivableGrossCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsReceivableNetCurrent_e6fbc40a-30d8-487b-989a-4fe5ff26f175" xlink:to="loc_us-gaap_AccountsReceivableGrossCurrent_bfd14a0d-3126-45d7-afce-15f854957788" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_0312d7fd-d546-48ee-825e-587ae125380d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsReceivableNetCurrent_e6fbc40a-30d8-487b-989a-4fe5ff26f175" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_0312d7fd-d546-48ee-825e-587ae125380d" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.cbiz.com/role/OTHERCOMPREHENSIVEINCOMEDetails" xlink:type="simple" xlink:href="cbz-20240630.xsd#OTHERCOMPREHENSIVEINCOMEDetails"/>
  <link:calculationLink xlink:role="http://www.cbiz.com/role/OTHERCOMPREHENSIVEINCOMEDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_3d76d677-5fd4-4e14-8ee6-1b9c1e9ff275" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent_29ee2f68-4301-44cf-a7fd-9dc53639d519" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_3d76d677-5fd4-4e14-8ee6-1b9c1e9ff275" xlink:to="loc_us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent_29ee2f68-4301-44cf-a7fd-9dc53639d519" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent_6bc888a2-6586-47c3-8c79-6a4c8effd502" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_3d76d677-5fd4-4e14-8ee6-1b9c1e9ff275" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent_6bc888a2-6586-47c3-8c79-6a4c8effd502" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_956acceb-ad0d-4841-9cdb-a12fc1c58aed" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_3d76d677-5fd4-4e14-8ee6-1b9c1e9ff275" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_956acceb-ad0d-4841-9cdb-a12fc1c58aed" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.cbiz.com/role/EMPLOYEESTOCKPLANSScheduleofCompensationExpenseforStockBasedAwardsDetails" xlink:type="simple" xlink:href="cbz-20240630.xsd#EMPLOYEESTOCKPLANSScheduleofCompensationExpenseforStockBasedAwardsDetails"/>
  <link:calculationLink xlink:role="http://www.cbiz.com/role/EMPLOYEESTOCKPLANSScheduleofCompensationExpenseforStockBasedAwardsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_e3c5e5e5-e28d-4abc-994f-0c83a199b414" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockOptionPlanExpense_f306fe7a-050c-4922-b3e1-4ec44e5fa7d7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockOptionPlanExpense"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AllocatedShareBasedCompensationExpense_e3c5e5e5-e28d-4abc-994f-0c83a199b414" xlink:to="loc_us-gaap_StockOptionPlanExpense_f306fe7a-050c-4922-b3e1-4ec44e5fa7d7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockExpense_52e9078c-443a-4259-9305-75c7e63cad4c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestrictedStockExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AllocatedShareBasedCompensationExpense_e3c5e5e5-e28d-4abc-994f-0c83a199b414" xlink:to="loc_us-gaap_RestrictedStockExpense_52e9078c-443a-4259-9305-75c7e63cad4c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbz_PerformanceShareUnits_83c8fe63-151b-49a0-9d21-7b49660cd8be" xlink:href="cbz-20240630.xsd#cbz_PerformanceShareUnits"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AllocatedShareBasedCompensationExpense_e3c5e5e5-e28d-4abc-994f-0c83a199b414" xlink:to="loc_cbz_PerformanceShareUnits_83c8fe63-151b-49a0-9d21-7b49660cd8be" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.cbiz.com/role/EARNINGSPERSHAREDetails" xlink:type="simple" xlink:href="cbz-20240630.xsd#EARNINGSPERSHAREDetails"/>
  <link:calculationLink xlink:role="http://www.cbiz.com/role/EARNINGSPERSHAREDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_a7e79543-18f5-49a2-bd1f-73715626f14a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbz_IncrementalCommonSharesAttributableToStockOptions_3c52df84-388c-4104-918d-d72b07185fb2" xlink:href="cbz-20240630.xsd#cbz_IncrementalCommonSharesAttributableToStockOptions"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_a7e79543-18f5-49a2-bd1f-73715626f14a" xlink:to="loc_cbz_IncrementalCommonSharesAttributableToStockOptions_3c52df84-388c-4104-918d-d72b07185fb2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_f8e3d38c-0d57-44ba-9228-17375ea396f0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_a7e79543-18f5-49a2-bd1f-73715626f14a" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_f8e3d38c-0d57-44ba-9228-17375ea396f0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToContingentlyIssuableShares_03635402-a131-460b-ba75-bc8694dbe4bd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncrementalCommonSharesAttributableToContingentlyIssuableShares"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_a7e79543-18f5-49a2-bd1f-73715626f14a" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToContingentlyIssuableShares_03635402-a131-460b-ba75-bc8694dbe4bd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbz_IncrementalCommonSharesAttributableToRestrictedStockUnitsAndAwards_f9f7f80d-ad4c-43a2-b846-5f1567d05965" xlink:href="cbz-20240630.xsd#cbz_IncrementalCommonSharesAttributableToRestrictedStockUnitsAndAwards"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_a7e79543-18f5-49a2-bd1f-73715626f14a" xlink:to="loc_cbz_IncrementalCommonSharesAttributableToRestrictedStockUnitsAndAwards_f9f7f80d-ad4c-43a2-b846-5f1567d05965" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbz_IncrementalCommonSharesAttributableToPerformanceShare_c6bc1c81-12ef-470e-8438-7a98265cbacf" xlink:href="cbz-20240630.xsd#cbz_IncrementalCommonSharesAttributableToPerformanceShare"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_a7e79543-18f5-49a2-bd1f-73715626f14a" xlink:to="loc_cbz_IncrementalCommonSharesAttributableToPerformanceShare_c6bc1c81-12ef-470e-8438-7a98265cbacf" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
