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        <link:definition>11201 - Disclosure - INCOME TAXES</link:definition>
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        <link:definition>30703 - Disclosure - DEBT (Tables)</link:definition>
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        <link:definition>40205 - Disclosure - REVENUE RECOGNITION - Changes to deferred revenue (Details)</link:definition>
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        <link:definition>40206 - Disclosure - REVENUE RECOGNITION - Contract cost balances (Details)</link:definition>
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  <xsd:element id="verx_LcrDixonCorporationMember" name="LcrDixonCorporationMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="verx_BusinessCombinationDeferredPurchaseConsiderationLiabilityCurrent" name="BusinessCombinationDeferredPurchaseConsiderationLiabilityCurrent" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <xsd:element id="verx_ScheduleOfOtherAcquiredIntangibleAssetsTableTextBlock" name="ScheduleOfOtherAcquiredIntangibleAssetsTableTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="verx_FairMarketValueOfCommonStock" name="FairMarketValueOfCommonStock" nillable="true" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="verx_ConversionOfSharesDuringPeriod" name="ConversionOfSharesDuringPeriod" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="verx_PriceRangeElevenMember" name="PriceRangeElevenMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="verx_BusinessCombinationDeferredPurchaseConsideration" name="BusinessCombinationDeferredPurchaseConsideration" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <xsd:element id="verx_BusinessCombinationPurchaseCommitmentLiability" name="BusinessCombinationPurchaseCommitmentLiability" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element name="ScheduleOfSupplementalBalanceSheetInformationTableTextBlock" id="verx_ScheduleOfSupplementalBalanceSheetInformationTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SupplementalBalanceSheetInformationPolicyPolicyTextBlock" id="verx_SupplementalBalanceSheetInformationPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="OutOfMoneyOptionsMember" id="verx_OutOfMoneyOptionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NewTermLoanMember" id="verx_NewTermLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ShareBasedCompensationAmountsWithheldFromParticipants" id="verx_ShareBasedCompensationAmountsWithheldFromParticipants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ProceedsFromTermLoan" id="verx_ProceedsFromTermLoan" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="TermLoanMember" id="verx_TermLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PaymentsForDeferredPurchaseCommitments" id="verx_PaymentsForDeferredPurchaseCommitments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="InvestmentSecuritiesAvailableForSaleCurrentExcludingAmountsIncludedInCashEquivalents" id="verx_InvestmentSecuritiesAvailableForSaleCurrentExcludingAmountsIncludedInCashEquivalents" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="InvestmentInDebtSecuritiesExcludingThoseClassifiedAsCashEquivalentsAmortizedCost" id="verx_InvestmentInDebtSecuritiesExcludingThoseClassifiedAsCashEquivalentsAmortizedCost" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="LongTermDebtNoncurrentGross" id="verx_LongTermDebtNoncurrentGross" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ShareBasedCompensationArrangementNumberOfOfferingPeriods" id="verx_ShareBasedCompensationArrangementNumberOfOfferingPeriods" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="UnamortizedCloudComputingImplementationCostsPrepaidExpenseCurrent" id="verx_UnamortizedCloudComputingImplementationCostsPrepaidExpenseCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PrepaidLicensesAndSupportCurrent" id="verx_PrepaidLicensesAndSupportCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="UnamortizedCloudComputingImplementationCostsNonCurrent" id="verx_UnamortizedCloudComputingImplementationCostsNonCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="RevisionOfPreviouslyIssuedFinancialStatementsPolicyTextBlock" id="verx_RevisionOfPreviouslyIssuedFinancialStatementsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CapitalizedSoftwareDevelopmentCostAmortizationExtensionTerm" id="verx_CapitalizedSoftwareDevelopmentCostAmortizationExtensionTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AmortizationExpenseCapitalizedCloudComputingImplementationCosts" id="verx_AmortizationExpenseCapitalizedCloudComputingImplementationCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="HostingArrangementServiceContractImplementationCostPolicyTextBlock" id="verx_HostingArrangementServiceContractImplementationCostPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="JohnSchwabMember" id="verx_JohnSchwabMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TrdArrExpirationDate" id="verx_TrdArrExpirationDate" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="EricAndersenMember" id="verx_EricAndersenMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
</xsd:schema>
