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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2024 Workiva-->
<!--r:a1dc3fdf-6748-4123-846a-64efd9b512ea,g:98f7cb34-5d0c-4f6b-ad2b-c796e4960e10-->
<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.insperity.com/role/CONSOLIDATEDBALANCESHEETSUnaudited" xlink:type="simple" xlink:href="nsp-20240930.xsd#CONSOLIDATEDBALANCESHEETSUnaudited"/>
  <link:calculationLink xlink:role="http://www.insperity.com/role/CONSOLIDATEDBALANCESHEETSUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_b0061def-0d8c-4972-90e2-752db88ddba4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_c70f1897-70c7-40ee-9bdb-0f66b8821b7d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.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_b0061def-0d8c-4972-90e2-752db88ddba4" xlink:to="loc_us-gaap_CommonStockValue_c70f1897-70c7-40ee-9bdb-0f66b8821b7d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_7d6a9dd8-0a3d-472c-a314-dbff0f2ab488" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.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_b0061def-0d8c-4972-90e2-752db88ddba4" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_7d6a9dd8-0a3d-472c-a314-dbff0f2ab488" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValue_a66241e2-d5ab-481f-9c82-de0860f65c84" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockValue"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_b0061def-0d8c-4972-90e2-752db88ddba4" xlink:to="loc_us-gaap_TreasuryStockValue_a66241e2-d5ab-481f-9c82-de0860f65c84" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_38e4889d-bbff-49e7-a1ee-d8fbc76d1157" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.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_b0061def-0d8c-4972-90e2-752db88ddba4" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_38e4889d-bbff-49e7-a1ee-d8fbc76d1157" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_76d881e7-1d75-4479-b9de-21fad4b03961" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_acb3d895-b7a7-466f-a83d-d8568d1e8a7a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_76d881e7-1d75-4479-b9de-21fad4b03961" xlink:to="loc_us-gaap_AccountsPayableCurrent_acb3d895-b7a7-466f-a83d-d8568d1e8a7a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedPayrollTaxesCurrent_58c19841-6b77-4795-ad8e-c92ffcb3371b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccruedPayrollTaxesCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_76d881e7-1d75-4479-b9de-21fad4b03961" xlink:to="loc_us-gaap_AccruedPayrollTaxesCurrent_58c19841-6b77-4795-ad8e-c92ffcb3371b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_nsp_AccruedWorksiteEmployeePayrollCosts_cfe61216-b61a-4f97-ba96-3ac60b827ec8" xlink:href="nsp-20240930.xsd#nsp_AccruedWorksiteEmployeePayrollCosts"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_76d881e7-1d75-4479-b9de-21fad4b03961" xlink:to="loc_nsp_AccruedWorksiteEmployeePayrollCosts_cfe61216-b61a-4f97-ba96-3ac60b827ec8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_nsp_AccruedHealthInsuranceCosts_f4e291ae-7e65-4f2e-8483-d6e95457d251" xlink:href="nsp-20240930.xsd#nsp_AccruedHealthInsuranceCosts"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_76d881e7-1d75-4479-b9de-21fad4b03961" xlink:to="loc_nsp_AccruedHealthInsuranceCosts_f4e291ae-7e65-4f2e-8483-d6e95457d251" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WorkersCompensationLiabilityCurrent_6c20ba37-b125-4bb1-95d7-cbaa4f705e5d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WorkersCompensationLiabilityCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_76d881e7-1d75-4479-b9de-21fad4b03961" xlink:to="loc_us-gaap_WorkersCompensationLiabilityCurrent_6c20ba37-b125-4bb1-95d7-cbaa4f705e5d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedSalariesCurrentAndNoncurrent_1ff49e93-9dd5-491b-bb8f-40e52cc9ba54" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccruedSalariesCurrentAndNoncurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_76d881e7-1d75-4479-b9de-21fad4b03961" xlink:to="loc_us-gaap_AccruedSalariesCurrentAndNoncurrent_1ff49e93-9dd5-491b-bb8f-40e52cc9ba54" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxesPayableCurrent_a481ae3c-5ced-4bbc-93dd-0ff8cf063396" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TaxesPayableCurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_76d881e7-1d75-4479-b9de-21fad4b03961" xlink:to="loc_us-gaap_TaxesPayableCurrent_a481ae3c-5ced-4bbc-93dd-0ff8cf063396" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_91c876ec-14cf-4425-b282-0b4e08cd9452" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_76d881e7-1d75-4479-b9de-21fad4b03961" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_91c876ec-14cf-4425-b282-0b4e08cd9452" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_eb3f6654-0a87-4001-85fd-a11b3a280f3d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_4bd7bce8-dc29-4b75-9993-978001ece612" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_eb3f6654-0a87-4001-85fd-a11b3a280f3d" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_4bd7bce8-dc29-4b75-9993-978001ece612" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_a6ad0e74-c31e-4e9f-99f9-35866b78545a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_eb3f6654-0a87-4001-85fd-a11b3a280f3d" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_a6ad0e74-c31e-4e9f-99f9-35866b78545a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketableSecuritiesCurrent_9678892c-72ae-49b9-a3f3-519f9299445a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MarketableSecuritiesCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_eb3f6654-0a87-4001-85fd-a11b3a280f3d" xlink:to="loc_us-gaap_MarketableSecuritiesCurrent_9678892c-72ae-49b9-a3f3-519f9299445a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsAndOtherReceivablesNetCurrent_cea3e961-89f8-4d5f-bb47-893af174a84f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsAndOtherReceivablesNetCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_eb3f6654-0a87-4001-85fd-a11b3a280f3d" xlink:to="loc_us-gaap_AccountsAndOtherReceivablesNetCurrent_cea3e961-89f8-4d5f-bb47-893af174a84f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidInsurance_d30dbf6e-b30d-42c1-aef2-abe7b2a160f9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PrepaidInsurance"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_eb3f6654-0a87-4001-85fd-a11b3a280f3d" xlink:to="loc_us-gaap_PrepaidInsurance_d30dbf6e-b30d-42c1-aef2-abe7b2a160f9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_379451c9-933e-44f4-a8f3-f18257e4d357" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_eb3f6654-0a87-4001-85fd-a11b3a280f3d" xlink:to="loc_us-gaap_OtherAssetsCurrent_379451c9-933e-44f4-a8f3-f18257e4d357" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrent_093884ab-36b0-47e3-84df-78033272670c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WorkersCompensationLiabilityNoncurrent_6340ac1a-6ad8-412a-b6c4-8e01002807b0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WorkersCompensationLiabilityNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_093884ab-36b0-47e3-84df-78033272670c" xlink:to="loc_us-gaap_WorkersCompensationLiabilityNoncurrent_6340ac1a-6ad8-412a-b6c4-8e01002807b0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_bfa40192-b75f-4401-aa43-567f6e2b95a4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_093884ab-36b0-47e3-84df-78033272670c" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_bfa40192-b75f-4401-aa43-567f6e2b95a4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_f0e9ab73-dc3b-4f0f-9590-4cf5d73dfe4d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_093884ab-36b0-47e3-84df-78033272670c" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_f0e9ab73-dc3b-4f0f-9590-4cf5d73dfe4d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_0a34f644-8a30-4df3-8c69-6591105d8915" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_c89c2cb6-d4ed-4faa-a4d0-8b89a74c198b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.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_0a34f644-8a30-4df3-8c69-6591105d8915" xlink:to="loc_us-gaap_AssetsCurrent_c89c2cb6-d4ed-4faa-a4d0-8b89a74c198b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_aeaf9d67-b951-4627-83d1-65b6ad7992bb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_0a34f644-8a30-4df3-8c69-6591105d8915" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_aeaf9d67-b951-4627-83d1-65b6ad7992bb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_13edf4c3-b9eb-4c74-a453-ee14832d9e5a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_0a34f644-8a30-4df3-8c69-6591105d8915" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_13edf4c3-b9eb-4c74-a453-ee14832d9e5a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_nsp_PrepaidHealthInsuranceNoncurrent_3d287cca-4578-4d34-b112-f73c220eebf5" xlink:href="nsp-20240930.xsd#nsp_PrepaidHealthInsuranceNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_0a34f644-8a30-4df3-8c69-6591105d8915" xlink:to="loc_nsp_PrepaidHealthInsuranceNoncurrent_3d287cca-4578-4d34-b112-f73c220eebf5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_nsp_DepositsHealthInsurance_d83f10e0-d8f3-4680-86d6-c4ebea27e087" xlink:href="nsp-20240930.xsd#nsp_DepositsHealthInsurance"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_0a34f644-8a30-4df3-8c69-6591105d8915" xlink:to="loc_nsp_DepositsHealthInsurance_d83f10e0-d8f3-4680-86d6-c4ebea27e087" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_nsp_DepositsWorkersCompensation_1eac76b1-1340-490a-806a-69b95e689b5a" xlink:href="nsp-20240930.xsd#nsp_DepositsWorkersCompensation"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_0a34f644-8a30-4df3-8c69-6591105d8915" xlink:to="loc_nsp_DepositsWorkersCompensation_1eac76b1-1340-490a-806a-69b95e689b5a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetIncludingGoodwill_97c8de47-e0fa-494d-bdb4-a0802c82b5af" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IntangibleAssetsNetIncludingGoodwill"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_0a34f644-8a30-4df3-8c69-6591105d8915" xlink:to="loc_us-gaap_IntangibleAssetsNetIncludingGoodwill_97c8de47-e0fa-494d-bdb4-a0802c82b5af" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_9ce2e137-ed17-4037-a7ed-849a80aa2931" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredIncomeTaxAssetsNet"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_0a34f644-8a30-4df3-8c69-6591105d8915" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_9ce2e137-ed17-4037-a7ed-849a80aa2931" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_23d4e5d3-2c91-4c5b-8127-32399a52210b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_0a34f644-8a30-4df3-8c69-6591105d8915" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_23d4e5d3-2c91-4c5b-8127-32399a52210b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_8faf1d67-82ea-43aa-8e3d-584cf4a784e5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_786e6b5b-68cf-428e-999f-d3937c8325ff" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.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_LiabilitiesAndStockholdersEquity_8faf1d67-82ea-43aa-8e3d-584cf4a784e5" xlink:to="loc_us-gaap_LiabilitiesCurrent_786e6b5b-68cf-428e-999f-d3937c8325ff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrent_c78afe42-b13b-40db-8b24-821be36533d4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.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_LiabilitiesAndStockholdersEquity_8faf1d67-82ea-43aa-8e3d-584cf4a784e5" xlink:to="loc_us-gaap_LiabilitiesNoncurrent_c78afe42-b13b-40db-8b24-821be36533d4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_af7c3bc4-2537-4675-9f12-72ee7849b26b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_8faf1d67-82ea-43aa-8e3d-584cf4a784e5" xlink:to="loc_us-gaap_StockholdersEquity_af7c3bc4-2537-4675-9f12-72ee7849b26b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.insperity.com/role/CONSOLIDATEDSTATEMENTSOFOPERATIONSUnaudited" xlink:type="simple" xlink:href="nsp-20240930.xsd#CONSOLIDATEDSTATEMENTSOFOPERATIONSUnaudited"/>
  <link:calculationLink xlink:role="http://www.insperity.com/role/CONSOLIDATEDSTATEMENTSOFOPERATIONSUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_1e2ed45c-7b35-475f-8626-bc5234c88942" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_c481d898-0045-4267-af01-720d0f424f70" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.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_1e2ed45c-7b35-475f-8626-bc5234c88942" xlink:to="loc_us-gaap_OperatingIncomeLoss_c481d898-0045-4267-af01-720d0f424f70" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeOther_9a589462-1dd2-4415-86b3-8dbcc28be1a0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestIncomeOther"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_1e2ed45c-7b35-475f-8626-bc5234c88942" xlink:to="loc_us-gaap_InterestIncomeOther_9a589462-1dd2-4415-86b3-8dbcc28be1a0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_3779c8d3-0759-4c91-b5b3-46b68fdee952" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestExpense"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_1e2ed45c-7b35-475f-8626-bc5234c88942" xlink:to="loc_us-gaap_InterestExpense_3779c8d3-0759-4c91-b5b3-46b68fdee952" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_31f45165-db00-4356-9261-9507b0a3dc57" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_607bdcb4-d652-4921-b65b-fefc031d4899" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.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_31f45165-db00-4356-9261-9507b0a3dc57" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_607bdcb4-d652-4921-b65b-fefc031d4899" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_4fe198b4-c568-4bf1-8d76-376fe8ef2f34" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.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_31f45165-db00-4356-9261-9507b0a3dc57" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_4fe198b4-c568-4bf1-8d76-376fe8ef2f34" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_483d2bc7-b225-4472-8d0a-37f61c8e36db" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_nsp_SalariesWagesAndPayrollTaxes_fec9ce00-cfb7-44f1-b295-a7ff68f12f40" xlink:href="nsp-20240930.xsd#nsp_SalariesWagesAndPayrollTaxes"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_483d2bc7-b225-4472-8d0a-37f61c8e36db" xlink:to="loc_nsp_SalariesWagesAndPayrollTaxes_fec9ce00-cfb7-44f1-b295-a7ff68f12f40" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_0d822596-35d4-4e38-af82-e83f6b7dc6f7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_483d2bc7-b225-4472-8d0a-37f61c8e36db" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_0d822596-35d4-4e38-af82-e83f6b7dc6f7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesCommissionsAndFees_07168501-4bd2-4255-b7c7-bcca72bce8c9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SalesCommissionsAndFees"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_483d2bc7-b225-4472-8d0a-37f61c8e36db" xlink:to="loc_us-gaap_SalesCommissionsAndFees_07168501-4bd2-4255-b7c7-bcca72bce8c9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdvertisingExpense_d904131b-a7f1-4128-81f3-8d435e577421" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdvertisingExpense"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_483d2bc7-b225-4472-8d0a-37f61c8e36db" xlink:to="loc_us-gaap_AdvertisingExpense_d904131b-a7f1-4128-81f3-8d435e577421" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_55913248-c4dc-4ade-8d85-184320ea11ce" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DepreciationAndAmortization"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_483d2bc7-b225-4472-8d0a-37f61c8e36db" xlink:to="loc_us-gaap_DepreciationAndAmortization_55913248-c4dc-4ade-8d85-184320ea11ce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_cdfc4628-8aa2-49a0-bfa7-4970004a0e02" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_483d2bc7-b225-4472-8d0a-37f61c8e36db" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_cdfc4628-8aa2-49a0-bfa7-4970004a0e02" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_53f37964-ca5b-49f5-a3ab-cdc98e3d83ed" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_f6b3e88d-6196-4da8-b4d7-d03f7a3a6d69" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GrossProfit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_53f37964-ca5b-49f5-a3ab-cdc98e3d83ed" xlink:to="loc_us-gaap_GrossProfit_f6b3e88d-6196-4da8-b4d7-d03f7a3a6d69" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_11b063fd-12e6-4142-b3be-88b11cc9d458" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingExpenses"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_53f37964-ca5b-49f5-a3ab-cdc98e3d83ed" xlink:to="loc_us-gaap_OperatingExpenses_11b063fd-12e6-4142-b3be-88b11cc9d458" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_8376d213-2d2b-4326-b08a-f5ea5d4fb6ef" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GrossProfit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_5df9be68-bcc5-476c-a588-1d81ece610ee" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.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_8376d213-2d2b-4326-b08a-f5ea5d4fb6ef" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_5df9be68-bcc5-476c-a588-1d81ece610ee" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_nsp_PayrollTaxesBenefitsAndWorkersCompensationCosts_54480d29-9355-4f8c-837e-55d3be654c61" xlink:href="nsp-20240930.xsd#nsp_PayrollTaxesBenefitsAndWorkersCompensationCosts"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_8376d213-2d2b-4326-b08a-f5ea5d4fb6ef" xlink:to="loc_nsp_PayrollTaxesBenefitsAndWorkersCompensationCosts_54480d29-9355-4f8c-837e-55d3be654c61" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.insperity.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited" xlink:type="simple" xlink:href="nsp-20240930.xsd#CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"/>
  <link:calculationLink xlink:role="http://www.insperity.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2ee41c5a-affa-4936-83a0-859d437ac79d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_0e7cf600-3c69-42e3-8cd1-6c54e00359fb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2ee41c5a-affa-4936-83a0-859d437ac79d" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_0e7cf600-3c69-42e3-8cd1-6c54e00359fb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_000db502-bde8-4b35-95af-0c1f50b0b88e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2ee41c5a-affa-4936-83a0-859d437ac79d" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_000db502-bde8-4b35-95af-0c1f50b0b88e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_c27c5e45-cf9f-4ea0-ac32-5888e0f406eb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2ee41c5a-affa-4936-83a0-859d437ac79d" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_c27c5e45-cf9f-4ea0-ac32-5888e0f406eb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_310a7f72-b67f-45ab-a8fa-c570fd29b3de" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireMarketableSecurities_f77aee70-7913-43a0-8086-4683130a2ac0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquireMarketableSecurities"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_310a7f72-b67f-45ab-a8fa-c570fd29b3de" xlink:to="loc_us-gaap_PaymentsToAcquireMarketableSecurities_f77aee70-7913-43a0-8086-4683130a2ac0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_eaedd907-b7e8-4070-805b-55630f5093f2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_310a7f72-b67f-45ab-a8fa-c570fd29b3de" xlink:to="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_eaedd907-b7e8-4070-805b-55630f5093f2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_9cf96e25-0be5-4695-9f81-1c4b28a26c92" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_310a7f72-b67f-45ab-a8fa-c570fd29b3de" xlink:to="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_9cf96e25-0be5-4695-9f81-1c4b28a26c92" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_26310535-49ad-4a67-a710-0dcd6bc1e0d8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_310a7f72-b67f-45ab-a8fa-c570fd29b3de" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_26310535-49ad-4a67-a710-0dcd6bc1e0d8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_e3080a0f-4299-42db-b958-5f1e398bdacf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_5aa72b76-7b2d-4074-9beb-f802ab812ece" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_e3080a0f-4299-42db-b958-5f1e398bdacf" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_5aa72b76-7b2d-4074-9beb-f802ab812ece" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_5785de57-62e9-49cb-973d-308cae18d41f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_e3080a0f-4299-42db-b958-5f1e398bdacf" xlink:to="loc_us-gaap_NetIncomeLoss_5785de57-62e9-49cb-973d-308cae18d41f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_235b2707-88d6-4d2c-88e9-574b05592959" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_0e17f7d5-ff3c-464d-bf34-7b76f34cb82e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_235b2707-88d6-4d2c-88e9-574b05592959" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_0e17f7d5-ff3c-464d-bf34-7b76f34cb82e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_159bbe3f-8c07-4925-8c16-f1a480b66c9e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_235b2707-88d6-4d2c-88e9-574b05592959" xlink:to="loc_us-gaap_ShareBasedCompensation_159bbe3f-8c07-4925-8c16-f1a480b66c9e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_a77b1074-5307-45d0-92d0-9ab05ead89dc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_235b2707-88d6-4d2c-88e9-574b05592959" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_a77b1074-5307-45d0-92d0-9ab05ead89dc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_79b4f52e-9ff4-4dea-b8b7-20f699c45af3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_235b2707-88d6-4d2c-88e9-574b05592959" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_79b4f52e-9ff4-4dea-b8b7-20f699c45af3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidExpense_8f91d59a-10b8-45f2-ae3d-6222b2afa64e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInPrepaidExpense"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_235b2707-88d6-4d2c-88e9-574b05592959" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidExpense_8f91d59a-10b8-45f2-ae3d-6222b2afa64e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_65ce5c08-d28d-4909-92e2-a9cfb69733d9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInOtherCurrentAssets"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_235b2707-88d6-4d2c-88e9-574b05592959" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_65ce5c08-d28d-4909-92e2-a9cfb69733d9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_ae77701f-a651-4757-8d4c-173bf76b8c65" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentAssets"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_235b2707-88d6-4d2c-88e9-574b05592959" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_ae77701f-a651-4757-8d4c-173bf76b8c65" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableTrade_de0d0d99-8b42-42a8-8b7f-b223c71a1707" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInAccountsPayableTrade"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_235b2707-88d6-4d2c-88e9-574b05592959" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableTrade_de0d0d99-8b42-42a8-8b7f-b223c71a1707" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherEmployeeRelatedLiabilities_3047b62c-334e-439f-95ee-dac22534b30f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInOtherEmployeeRelatedLiabilities"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_235b2707-88d6-4d2c-88e9-574b05592959" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherEmployeeRelatedLiabilities_3047b62c-334e-439f-95ee-dac22534b30f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_nsp_IncreaseDecreaseinWSEEpayrollexpense_86a90120-08ce-4625-bcf4-80f0a6605152" xlink:href="nsp-20240930.xsd#nsp_IncreaseDecreaseinWSEEpayrollexpense"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_235b2707-88d6-4d2c-88e9-574b05592959" xlink:to="loc_nsp_IncreaseDecreaseinWSEEpayrollexpense_86a90120-08ce-4625-bcf4-80f0a6605152" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInHealthCareInsuranceLiabilities_4586d9a2-7176-48df-a52b-f729e7247b0c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInHealthCareInsuranceLiabilities"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_235b2707-88d6-4d2c-88e9-574b05592959" xlink:to="loc_us-gaap_IncreaseDecreaseInHealthCareInsuranceLiabilities_4586d9a2-7176-48df-a52b-f729e7247b0c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInWorkersCompensationLiabilities_e4f1ad4d-acb2-478f-9fd7-0ccb4f080bf6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInWorkersCompensationLiabilities"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_235b2707-88d6-4d2c-88e9-574b05592959" xlink:to="loc_us-gaap_IncreaseDecreaseInWorkersCompensationLiabilities_e4f1ad4d-acb2-478f-9fd7-0ccb4f080bf6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedSalaries_deaac447-138c-4293-ad91-f1e8251ccc62" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInAccruedSalaries"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_235b2707-88d6-4d2c-88e9-574b05592959" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedSalaries_deaac447-138c-4293-ad91-f1e8251ccc62" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInIncomeTaxes_08c986e9-ba1f-46de-a2db-1ab19f779f38" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInIncomeTaxes"/>
    <link:calculationArc order="14" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_235b2707-88d6-4d2c-88e9-574b05592959" xlink:to="loc_us-gaap_IncreaseDecreaseInIncomeTaxes_08c986e9-ba1f-46de-a2db-1ab19f779f38" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_2879956f-b7f6-485e-a754-0585536cd24c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_9b4a7096-4a93-4ab5-8f8e-58431f1f4c07" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_2879956f-b7f6-485e-a754-0585536cd24c" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_9b4a7096-4a93-4ab5-8f8e-58431f1f4c07" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_78984180-6b73-4e4d-968d-49886c8da14e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.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_2879956f-b7f6-485e-a754-0585536cd24c" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_78984180-6b73-4e4d-968d-49886c8da14e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_8c5d2700-ae5a-4c7e-967a-a33cd9df748e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_2879956f-b7f6-485e-a754-0585536cd24c" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_8c5d2700-ae5a-4c7e-967a-a33cd9df748e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.insperity.com/role/AccountingPoliciesDetails" xlink:type="simple" xlink:href="nsp-20240930.xsd#AccountingPoliciesDetails"/>
  <link:calculationLink xlink:role="http://www.insperity.com/role/AccountingPoliciesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_182a40e7-b912-48eb-bf9a-d73d3f77ffef" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_nsp_GrossBillings_24799bda-f417-482b-87eb-094b1e51929a" xlink:href="nsp-20240930.xsd#nsp_GrossBillings"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_182a40e7-b912-48eb-bf9a-d73d3f77ffef" xlink:to="loc_nsp_GrossBillings_24799bda-f417-482b-87eb-094b1e51929a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_nsp_WorksiteEmployeePayrollCost_51a2f5da-db2b-453b-9f15-7d275149bd87" xlink:href="nsp-20240930.xsd#nsp_WorksiteEmployeePayrollCost"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_182a40e7-b912-48eb-bf9a-d73d3f77ffef" xlink:to="loc_nsp_WorksiteEmployeePayrollCost_51a2f5da-db2b-453b-9f15-7d275149bd87" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WorkersCompensationLiabilityCurrentAndNoncurrent_bcc5a08d-ef4c-4bdb-854b-380a2aa67fe8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WorkersCompensationLiabilityCurrentAndNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_nsp_WorkersCompensationLiabilityNetOfAdminFeesCurrent_5e9e4a30-1413-4182-bae2-5bf0a691b222" xlink:href="nsp-20240930.xsd#nsp_WorkersCompensationLiabilityNetOfAdminFeesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WorkersCompensationLiabilityCurrentAndNoncurrent_bcc5a08d-ef4c-4bdb-854b-380a2aa67fe8" xlink:to="loc_nsp_WorkersCompensationLiabilityNetOfAdminFeesCurrent_5e9e4a30-1413-4182-bae2-5bf0a691b222" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WorkersCompensationLiabilityNoncurrent_9c74a098-f126-465a-a756-91c634a79107" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WorkersCompensationLiabilityNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WorkersCompensationLiabilityCurrentAndNoncurrent_bcc5a08d-ef4c-4bdb-854b-380a2aa67fe8" xlink:to="loc_us-gaap_WorkersCompensationLiabilityNoncurrent_9c74a098-f126-465a-a756-91c634a79107" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.insperity.com/role/OtherBalanceSheetInformationDetails" xlink:type="simple" xlink:href="nsp-20240930.xsd#OtherBalanceSheetInformationDetails"/>
  <link:calculationLink xlink:role="http://www.insperity.com/role/OtherBalanceSheetInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsAndShortTermInvestments_c22ff0e9-3477-4992-9ebb-8c21f1d2a7e4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsAndShortTermInvestments"/>
    <link:loc xlink:type="locator" xlink:label="loc_nsp_MoneyMarketFundsOvernightHoldingsAtCarryingValue_712d36e1-e611-43c9-ad7c-963b31fd7217" xlink:href="nsp-20240930.xsd#nsp_MoneyMarketFundsOvernightHoldingsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsAndShortTermInvestments_c22ff0e9-3477-4992-9ebb-8c21f1d2a7e4" xlink:to="loc_nsp_MoneyMarketFundsOvernightHoldingsAtCarryingValue_712d36e1-e611-43c9-ad7c-963b31fd7217" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestments_5b683075-51f1-4115-833c-46aa9267022f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.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_c22ff0e9-3477-4992-9ebb-8c21f1d2a7e4" xlink:to="loc_us-gaap_ShortTermInvestments_5b683075-51f1-4115-833c-46aa9267022f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Cash_b5691f6a-7baa-415d-a452-63e901aad595" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Cash"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsAndShortTermInvestments_c22ff0e9-3477-4992-9ebb-8c21f1d2a7e4" xlink:to="loc_us-gaap_Cash_b5691f6a-7baa-415d-a452-63e901aad595" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_DraftsPayable_7f867759-dc61-466e-ae5e-016f4e5cc92e" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_DraftsPayable"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsAndShortTermInvestments_c22ff0e9-3477-4992-9ebb-8c21f1d2a7e4" xlink:to="loc_srt_DraftsPayable_7f867759-dc61-466e-ae5e-016f4e5cc92e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_5ef82662-074c-42cc-b4ef-a5bfd8b72b44" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_edc2fd1e-60a0-4bae-9708-e9995dda4f02" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_5ef82662-074c-42cc-b4ef-a5bfd8b72b44" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_edc2fd1e-60a0-4bae-9708-e9995dda4f02" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_b9fce897-6ecf-494d-ab32-106271af2b4a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_5ef82662-074c-42cc-b4ef-a5bfd8b72b44" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_b9fce897-6ecf-494d-ab32-106271af2b4a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FundsHeldForClients_c0ce6dff-c453-4672-a0a0-ad6e5bc65565" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FundsHeldForClients"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_5ef82662-074c-42cc-b4ef-a5bfd8b72b44" xlink:to="loc_us-gaap_FundsHeldForClients_c0ce6dff-c453-4672-a0a0-ad6e5bc65565" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_nsp_DepositsWorkersCompensation_02b8e58b-6fc4-4d78-ae46-b8dcdd7d2a92" xlink:href="nsp-20240930.xsd#nsp_DepositsWorkersCompensation"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_5ef82662-074c-42cc-b4ef-a5bfd8b72b44" xlink:to="loc_nsp_DepositsWorkersCompensation_02b8e58b-6fc4-4d78-ae46-b8dcdd7d2a92" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.insperity.com/role/EarningsperShareDetails" xlink:type="simple" xlink:href="nsp-20240930.xsd#EarningsperShareDetails"/>
  <link:calculationLink xlink:role="http://www.insperity.com/role/EarningsperShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_ee5cd321-16f6-48c9-9b1d-5d05db43c4a5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_d3f85e07-b9f4-4505-beae-b5565af31f79" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.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_ee5cd321-16f6-48c9-9b1d-5d05db43c4a5" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_d3f85e07-b9f4-4505-beae-b5565af31f79" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_25c3902e-a470-4928-9231-bd755f3cb6f8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_ee5cd321-16f6-48c9-9b1d-5d05db43c4a5" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_25c3902e-a470-4928-9231-bd755f3cb6f8" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
