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    <link:label id="lab_tyl_SubscriptionRevenues_8F74B99FC588FC48BCE99A3A9EBC5DFB_documentation_en-US" xlink:label="lab_tyl_SubscriptionRevenues_8F74B99FC588FC48BCE99A3A9EBC5DFB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Subscription revenue comprised of fees from application service provider arrangements and other hosted service offerings, software subscriptions, electronic filing solutions, and disaster recovery services. These services also include professional services and maintenance support.</link:label>
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    <link:label id="lab_tyl_BrazosTechnologyCorporationMember_DC320844378324100B8A2E73599B656C_terseLabel_en-US" xlink:label="lab_tyl_BrazosTechnologyCorporationMember_DC320844378324100B8A2E73599B656C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Brazos Technology Corporation</link:label>
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    <link:label id="lab_tyl_BrazosTechnologyCorporationMember_DC320844378324100B8A2E73599B656C_documentation_en-US" xlink:label="lab_tyl_BrazosTechnologyCorporationMember_DC320844378324100B8A2E73599B656C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Brazos technology corporation.</link:label>
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    <link:label id="lab_us-gaap_BusinessAcquisitionLineItems_0F049E7B6AF23C45C1772E73599BADCE_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionLineItems_0F049E7B6AF23C45C1772E73599BADCE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Acquisition [Line Items]</link:label>
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    <link:label id="lab_us-gaap_BusinessCombinationConsiderationTransferred1_50A3FCA06E9936B3AEC82E73599BDF7B_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationConsiderationTransferred1_50A3FCA06E9936B3AEC82E73599BDF7B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total purchase price to acquire business</link:label>
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    <link:label id="lab_us-gaap_PaymentsToAcquireBusinessesGross_9B674A174D505512F1902E73599BF5BF_terseLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBusinessesGross_9B674A174D505512F1902E73599BF5BF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash to acquire business</link:label>
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    <link:label id="lab_us-gaap_CashAcquiredFromAcquisition_2E8BE748B23FEFA96BF32E73599B465B_terseLabel_en-US" xlink:label="lab_us-gaap_CashAcquiredFromAcquisition_2E8BE748B23FEFA96BF32E73599B465B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash acquired from acquisition</link:label>
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    <link:loc xlink:href="tyl-20171231.xsd#tyl_AccruedAcquisitionPurchasePrice" xlink:label="loc_tyl_AccruedAcquisitionPurchasePrice_D46459484A0FA27733152E73599B6F2D" xlink:type="locator" />
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    <link:label id="lab_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued_5488FE287BC2AEB10BB72E73599BC9D0_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued_5488FE287BC2AEB10BB72E73599BC9D0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of shares of equity interests issued to acquire entity</link:label>
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    <link:label id="lab_us-gaap_BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned_CA404E4FF8B4E08558932E73599BC44E_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned_CA404E4FF8B4E08558932E73599BC44E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Value of shares of equity interests issued to acquire entity</link:label>
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    <link:label id="lab_us-gaap_PaymentsForPreviousAcquisition_15D1BC0034317C8BCA792E73599B6257_terseLabel_en-US" xlink:label="lab_us-gaap_PaymentsForPreviousAcquisition_15D1BC0034317C8BCA792E73599B6257" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Payment for previous acquisition</link:label>
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    <link:label id="lab_tyl_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesPaidCurrentLiabilitiesLongTermDebt_A9063D331C3E5F6338552E73599CE6B0_terseLabel_en-US" xlink:label="lab_tyl_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesPaidCurrentLiabilitiesLongTermDebt_A9063D331C3E5F6338552E73599CE6B0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt assumed in acquisition</link:label>
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    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentAbstract_D4F9E18BB61183DA86BB2E735981644E_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentAbstract_D4F9E18BB61183DA86BB2E735981644E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment [Abstract]</link:label>
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    <link:label id="lab_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_B3A87AB654E5996187FB2E735981018F_label_en-US" xlink:label="lab_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_B3A87AB654E5996187FB2E735981018F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_B3A87AB654E5996187FB2E735981018F" xlink:type="locator" />
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    <link:label id="lab_us-gaap_StatementGeographicalAxis_EC8ECC4B435BCB3B15662E7359814C25_terseLabel_en-US" xlink:label="lab_us-gaap_StatementGeographicalAxis_EC8ECC4B435BCB3B15662E7359814C25" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Geographical [Axis]</link:label>
    <link:label id="lab_us-gaap_StatementGeographicalAxis_EC8ECC4B435BCB3B15662E7359814C25_label_en-US" xlink:label="lab_us-gaap_StatementGeographicalAxis_EC8ECC4B435BCB3B15662E7359814C25" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geographical [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementGeographicalAxis" xlink:label="loc_us-gaap_StatementGeographicalAxis_EC8ECC4B435BCB3B15662E7359814C25" xlink:type="locator" />
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    <link:label id="lab_us-gaap_SegmentGeographicalDomain_C8E81FA7E3D5B31FEF582E73598109CF_terseLabel_en-US" xlink:label="lab_us-gaap_SegmentGeographicalDomain_C8E81FA7E3D5B31FEF582E73598109CF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Geographical [Domain]</link:label>
    <link:label id="lab_us-gaap_SegmentGeographicalDomain_C8E81FA7E3D5B31FEF582E73598109CF_label_en-US" xlink:label="lab_us-gaap_SegmentGeographicalDomain_C8E81FA7E3D5B31FEF582E73598109CF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geographical [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain_C8E81FA7E3D5B31FEF582E73598109CF" xlink:type="locator" />
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    <link:label id="lab_tyl_LathamNewYorkMember_3023F1EC906C5749D4D02E735981A466_terseLabel_en-US" xlink:label="lab_tyl_LathamNewYorkMember_3023F1EC906C5749D4D02E735981A466" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Latham, New York</link:label>
    <link:label id="lab_tyl_LathamNewYorkMember_3023F1EC906C5749D4D02E735981A466_label_en-US" xlink:label="lab_tyl_LathamNewYorkMember_3023F1EC906C5749D4D02E735981A466" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Latham, New York [Member]</link:label>
    <link:label id="lab_tyl_LathamNewYorkMember_3023F1EC906C5749D4D02E735981A466_documentation_en-US" xlink:label="lab_tyl_LathamNewYorkMember_3023F1EC906C5749D4D02E735981A466" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Latham, New York [Member]</link:label>
    <link:loc xlink:href="tyl-20171231.xsd#tyl_LathamNewYorkMember" xlink:label="loc_tyl_LathamNewYorkMember_3023F1EC906C5749D4D02E735981A466" xlink:type="locator" />
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    <link:label id="lab_tyl_YarmouthMaineMember_236365C83BFDF892B8472E74BA111A98_terseLabel_en-US" xlink:label="lab_tyl_YarmouthMaineMember_236365C83BFDF892B8472E74BA111A98" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Yarmouth, Maine</link:label>
    <link:label id="lab_tyl_YarmouthMaineMember_236365C83BFDF892B8472E74BA111A98_label_en-US" xlink:label="lab_tyl_YarmouthMaineMember_236365C83BFDF892B8472E74BA111A98" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Yarmouth, Maine [Member]</link:label>
    <link:label id="lab_tyl_YarmouthMaineMember_236365C83BFDF892B8472E74BA111A98_documentation_en-US" xlink:label="lab_tyl_YarmouthMaineMember_236365C83BFDF892B8472E74BA111A98" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Yarmouth, Maine [Member]</link:label>
    <link:loc xlink:href="tyl-20171231.xsd#tyl_YarmouthMaineMember" xlink:label="loc_tyl_YarmouthMaineMember_236365C83BFDF892B8472E74BA111A98" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentLineItems_80A7C7D00842279F9DD02E7359814B00_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentLineItems_80A7C7D00842279F9DD02E7359814B00" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment [Line Items]</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentLineItems_80A7C7D00842279F9DD02E7359814B00_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentLineItems_80A7C7D00842279F9DD02E7359814B00" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_80A7C7D00842279F9DD02E7359814B00" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_80A7C7D00842279F9DD02E7359814B00" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentLineItems_80A7C7D00842279F9DD02E7359814B00" xlink:type="arc" />
    <link:label id="lab_us-gaap_Depreciation_D3EC361EE234C8BE9EF12E735981C8B7_terseLabel_en-US" xlink:label="lab_us-gaap_Depreciation_D3EC361EE234C8BE9EF12E735981C8B7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Depreciation expense</link:label>
    <link:label id="lab_us-gaap_Depreciation_D3EC361EE234C8BE9EF12E735981C8B7_label_en-US" xlink:label="lab_us-gaap_Depreciation_D3EC361EE234C8BE9EF12E735981C8B7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depreciation</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Depreciation" xlink:label="loc_us-gaap_Depreciation_D3EC361EE234C8BE9EF12E735981C8B7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Depreciation_D3EC361EE234C8BE9EF12E735981C8B7" xlink:to="lab_us-gaap_Depreciation_D3EC361EE234C8BE9EF12E735981C8B7" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsToAcquireBuildings_EBFFB35E174B13E14BBE2E735981AB29_terseLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBuildings_EBFFB35E174B13E14BBE2E735981AB29" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Payment to acquire building</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquireBuildings_EBFFB35E174B13E14BBE2E735981AB29_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBuildings_EBFFB35E174B13E14BBE2E735981AB29" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments to Acquire Buildings</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireBuildings" xlink:label="loc_us-gaap_PaymentsToAcquireBuildings_EBFFB35E174B13E14BBE2E735981AB29" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireBuildings_EBFFB35E174B13E14BBE2E735981AB29" xlink:to="lab_us-gaap_PaymentsToAcquireBuildings_EBFFB35E174B13E14BBE2E735981AB29" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsForCapitalImprovements_64690FF2EEA7DB689F372E735981175B_terseLabel_en-US" xlink:label="lab_us-gaap_PaymentsForCapitalImprovements_64690FF2EEA7DB689F372E735981175B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Payment for construction to expand building</link:label>
    <link:label id="lab_us-gaap_PaymentsForCapitalImprovements_64690FF2EEA7DB689F372E735981175B_label_en-US" xlink:label="lab_us-gaap_PaymentsForCapitalImprovements_64690FF2EEA7DB689F372E735981175B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments for Capital Improvements</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsForCapitalImprovements" xlink:label="loc_us-gaap_PaymentsForCapitalImprovements_64690FF2EEA7DB689F372E735981175B" xlink:type="locator" />
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    <link:label id="lab_tyl_EarliestLeaseExpirationYear_F43AFB1314E38BCBC9932E7359813D1E_terseLabel_en-US" xlink:label="lab_tyl_EarliestLeaseExpirationYear_F43AFB1314E38BCBC9932E7359813D1E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Lease expiration year, earliest</link:label>
    <link:label id="lab_tyl_EarliestLeaseExpirationYear_F43AFB1314E38BCBC9932E7359813D1E_label_en-US" xlink:label="lab_tyl_EarliestLeaseExpirationYear_F43AFB1314E38BCBC9932E7359813D1E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earliest Lease Expiration Year</link:label>
    <link:label id="lab_tyl_EarliestLeaseExpirationYear_F43AFB1314E38BCBC9932E7359813D1E_documentation_en-US" xlink:label="lab_tyl_EarliestLeaseExpirationYear_F43AFB1314E38BCBC9932E7359813D1E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Earliest lease expiration year.</link:label>
    <link:loc xlink:href="tyl-20171231.xsd#tyl_EarliestLeaseExpirationYear" xlink:label="loc_tyl_EarliestLeaseExpirationYear_F43AFB1314E38BCBC9932E7359813D1E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_tyl_EarliestLeaseExpirationYear_F43AFB1314E38BCBC9932E7359813D1E" xlink:to="lab_tyl_EarliestLeaseExpirationYear_F43AFB1314E38BCBC9932E7359813D1E" xlink:type="arc" />
    <link:label id="lab_tyl_LatestLeaseExpirationYear_87A5A264CE99AC6F6E502E7359816ACA_terseLabel_en-US" xlink:label="lab_tyl_LatestLeaseExpirationYear_87A5A264CE99AC6F6E502E7359816ACA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Lease expiration year, latest</link:label>
    <link:label id="lab_tyl_LatestLeaseExpirationYear_87A5A264CE99AC6F6E502E7359816ACA_label_en-US" xlink:label="lab_tyl_LatestLeaseExpirationYear_87A5A264CE99AC6F6E502E7359816ACA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Latest Lease Expiration Year</link:label>
    <link:label id="lab_tyl_LatestLeaseExpirationYear_87A5A264CE99AC6F6E502E7359816ACA_documentation_en-US" xlink:label="lab_tyl_LatestLeaseExpirationYear_87A5A264CE99AC6F6E502E7359816ACA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Latest lease expiration year.</link:label>
    <link:loc xlink:href="tyl-20171231.xsd#tyl_LatestLeaseExpirationYear" xlink:label="loc_tyl_LatestLeaseExpirationYear_87A5A264CE99AC6F6E502E7359816ACA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_tyl_LatestLeaseExpirationYear_87A5A264CE99AC6F6E502E7359816ACA" xlink:to="lab_tyl_LatestLeaseExpirationYear_87A5A264CE99AC6F6E502E7359816ACA" xlink:type="arc" />
    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent_66FF549B9682C88E1DFF2E735981AB6C_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent_66FF549B9682C88E1DFF2E735981AB6C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expected rental income, during 2018</link:label>
    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent_66FF549B9682C88E1DFF2E735981AB6C_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent_66FF549B9682C88E1DFF2E735981AB6C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Leases, Future Minimum Payments Receivable, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent_66FF549B9682C88E1DFF2E735981AB6C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent_66FF549B9682C88E1DFF2E735981AB6C" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent_66FF549B9682C88E1DFF2E735981AB6C" xlink:type="arc" />
    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears_FEBCD5D7DCA6DD2DA3452E735981700B_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears_FEBCD5D7DCA6DD2DA3452E735981700B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expected rental income, during 2019</link:label>
    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears_FEBCD5D7DCA6DD2DA3452E735981700B_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears_FEBCD5D7DCA6DD2DA3452E735981700B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Leases, Future Minimum Payments Receivable, in Two Years</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears_FEBCD5D7DCA6DD2DA3452E735981700B" xlink:type="locator" />
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    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter_A8B87B7FDE37C52BE26A2E7359825182_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter_A8B87B7FDE37C52BE26A2E7359825182" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expected rental income, thereafter</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter_A8B87B7FDE37C52BE26A2E7359825182" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetsByMajorClassTextBlock_5AAAF5A17D2DECD2E25FDFC2764E63D0_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetsByMajorClassTextBlock_5AAAF5A17D2DECD2E25FDFC2764E63D0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of Allocation of Acquisition Intangible Assets</link:label>
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    <link:label id="lab_us-gaap_ScheduleOfGoodwillTextBlock_251E2ECF7F23354CA319DFC2764E3EFF_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfGoodwillTextBlock_251E2ECF7F23354CA319DFC2764E3EFF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of Changes in Carrying Amount of Goodwill</link:label>
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    <link:label id="lab_us-gaap_LandMember_AE205038503AE1548350DFC275C12EC6_label_en-US" xlink:label="lab_us-gaap_LandMember_AE205038503AE1548350DFC275C12EC6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Land [Member]</link:label>
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    <link:label id="lab_tyl_BuildingAndLeaseholdImprovementsMember_302E4A9E3141815738A3DFC275C1C0F0_terseLabel_en-US" xlink:label="lab_tyl_BuildingAndLeaseholdImprovementsMember_302E4A9E3141815738A3DFC275C1C0F0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Building and leasehold improvements</link:label>
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    <link:label id="lab_tyl_ComputerEquipmentAndPurchasedSoftwareMember_55AB32BA5C866508ADB5DFC275C1FDF4_terseLabel_en-US" xlink:label="lab_tyl_ComputerEquipmentAndPurchasedSoftwareMember_55AB32BA5C866508ADB5DFC275C1FDF4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Computer equipment and purchased software</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:label="loc_us-gaap_IncreaseDecreaseInDeferredRevenue_C5FE2F30A36A38026BFA68091FB89F7D" xlink:type="locator" />
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    <link:label id="lab_us-gaap_LondonInterbankOfferedRateLIBORMember_D315263F2D8143C3C8984E2FDC4039B4_terseLabel_en-US" xlink:label="lab_us-gaap_LondonInterbankOfferedRateLIBORMember_D315263F2D8143C3C8984E2FDC4039B4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">LIBOR Rate</link:label>
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    <link:label id="lab_us-gaap_LineOfCreditFacilityExpirationDate1_490872FC71D6F0D97A674E2FDC40BACA_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityExpirationDate1_490872FC71D6F0D97A674E2FDC40BACA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revolving line of credit maturity date</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_AC8893E3AAD95AF9D25B9E49483D8505" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_82554547E947E8F116519E494840822B" xlink:type="locator" />
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