﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.irs.gov/efile" returnVersion="2025v4.2">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2026-09-14T14:05:29-05:00</ReturnTs>
    <TaxPeriodEndDt>2025-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>391628949</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>JOHNSON BLOCK &amp; CO INC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>9701 BRADER WAY SUITE 202</AddressLine1Txt>
        <CityNm>MIDDLETON</CityNm>
        <StateAbbreviationCd>WI</StateAbbreviationCd>
        <ZIPCd>53562</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2025-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>454808363</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>UNDERDOG PET RESCUE OF WISCONSIN INC</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>UNDE</BusinessNameControlTxt>
      <PhoneNum>6082240018</PhoneNum>
      <USAddress>
        <AddressLine1Txt>2508 S STOUGHTON ROAD</AddressLine1Txt>
        <CityNm>MADISON</CityNm>
        <StateAbbreviationCd>WI</StateAbbreviationCd>
        <ZIPCd>53716</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>LAUREN BRINKMAN</PersonNm>
      <PersonTitleTxt>EXECUTIVE DIRECTOR</PersonTitleTxt>
      <PhoneNum>6082240018</PhoneNum>
      <SignatureDt>2026-09-11</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <PreparerPersonGrp>
      <PreparerPersonNm>ELIZABETH COULSON</PreparerPersonNm>
      <PTIN>P02271575</PTIN>
      <PhoneNum>6082742002</PhoneNum>
      <PreparationDt>2026-09-11</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2025</TaxYr>
  </ReturnHeader>
  <ReturnData documentCnt="7">
    <IRS990 documentId="RetDoc1038000001" referenceDocumentId="RetDoc1044400001">
      <AddressChangeInd>X</AddressChangeInd>
      <PrincipalOfficerNm>LAUREN BRINKMAN</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>2508 S STOUGHTON ROAD</AddressLine1Txt>
        <CityNm>MADISON</CityNm>
        <StateAbbreviationCd>WI</StateAbbreviationCd>
        <ZIPCd>53716</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>1892619</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>0</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>WWW.UNDERDOGPETRESCUE.ORG</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>2012</FormationYr>
      <LegalDomicileStateCd>WI</LegalDomicileStateCd>
      <ActivityOrMissionDesc>TO FIND PERMANENT HOMES FOR ANIMALS IN NEED, AND TO ENRICH THE LIVES BY STRENGTHENING THE CONNECTION BETWEEN ANIMALS AND PEOPLE THROUGH COMMUNITY SERVICES AND OUTREACH.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>10</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>10</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>28</TotalEmployeeCnt>
      <TotalVolunteersCnt>400</TotalVolunteersCnt>
      <TotalGrossUBIAmt>0</TotalGrossUBIAmt>
      <NetUnrelatedBusTxblIncmAmt>0</NetUnrelatedBusTxblIncmAmt>
      <PYContributionsGrantsAmt>472921</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>857231</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>921211</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>1004599</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>180</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>1024</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>-8148</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>-5218</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>1386164</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>1857636</CYTotalRevenueAmt>
      <PYGrantsAndSimilarPaidAmt>0</PYGrantsAndSimilarPaidAmt>
      <CYGrantsAndSimilarPaidAmt>0</CYGrantsAndSimilarPaidAmt>
      <PYBenefitsPaidToMembersAmt>0</PYBenefitsPaidToMembersAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>898265</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>870181</CYSalariesCompEmpBnftPaidAmt>
      <PYTotalProfFndrsngExpnsAmt>0</PYTotalProfFndrsngExpnsAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>1888</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>630467</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>662961</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>1528732</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>1533142</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>-142568</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>324494</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>799512</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>978343</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>803603</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>657940</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>-4091</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>320403</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <MissionDesc>UNDERDOG PET RESCUE IS AN ALL-BREED COMPANION ANIMAL RESCUE AND AFFORDABLE VETERINARY CLINIC BASED IN MADISON, WISCONSIN. WE BRING MOBILE VETERINARY SERVICES THROUGHOUT THE STATE TO HELP SHELTERS AND INDIVIDUALS WITH OUR SPAY AND NEUTER SERVICES. OUR MISSION IS TO FIND PERMANENT HOMES FOR ANIMALS IN NEED, AND TO ENRICH LIVES BY STRENGTHENING THE CONNECTION BETWEEN ANIMALS AND PEOPLE THROUGH COMMUNITY SERVICES AND OUTREACH.</MissionDesc>
      <SignificantNewProgramSrvcInd>0</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>0</SignificantChangeInd>
      <ExpenseAmt>962139</ExpenseAmt>
      <RevenueAmt>767442</RevenueAmt>
      <Desc>VET SERVICES PROVIDED TO RESCUE ANIMALS AND PUBLICLY OWNED ANIMALS, WITH SPECIAL FOCUS ON HELPING LOW INCOME FAMILIES AND THOSE EXPERIENCING OR AT RISK OF HOMELESSNESS.</Desc>
      <ProgSrvcAccomActy2Grp>
        <ExpenseAmt>320713</ExpenseAmt>
        <RevenueAmt>237157</RevenueAmt>
        <Desc>RESCUE AND ADOPTION SERVICES OF MAINLY CATS AND DOGS. DURING 2025, OUR ORGANIZATION REHOMED APPROXIMATELY 1100 DOMESTICATED ANIMALS FROM HIGH VOLUME SHELTERS ACROSS THE UNITED STATES, WHERE PETS FACE EUTHANASIA WHEN SPACE RUNS OUT.</Desc>
      </ProgSrvcAccomActy2Grp>
      <TotalProgramServiceExpensesAmt>1282852</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="RetDoc1039100001">1</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd referenceDocumentId="RetDoc1234500001">1</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>0</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>0</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd>0</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="RetDoc1040000001">0</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="RetDoc1040000001">0</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="RetDoc1040000001">0</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="RetDoc1040000001">0</CreditCounselingInd>
      <DonorRstrOrQuasiEndowmentsInd>0</DonorRstrOrQuasiEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="RetDoc1040000001">1</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="RetDoc1040000001">0</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="RetDoc1040000001">0</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="RetDoc1040000001">0</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="RetDoc1040000001">1</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="RetDoc1040000001">1</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">1</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">0</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>0</SchoolOperatingInd>
      <ForeignOfficeInd>0</ForeignOfficeInd>
      <ForeignActivitiesInd>0</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd>0</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd>0</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd referenceDocumentId="RetDoc1041300001">0</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd referenceDocumentId="RetDoc1041300001">1</FundraisingActivitiesInd>
      <GamingActivitiesInd referenceDocumentId="RetDoc1041300001">0</GamingActivitiesInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <GrantsToOrganizationsInd>0</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd>0</GrantsToIndividualsInd>
      <ScheduleJRequiredInd>0</ScheduleJRequiredInd>
      <TaxExemptBondsInd>0</TaxExemptBondsInd>
      <EngagedInExcessBenefitTransInd>0</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd>0</PYExcessBenefitTransInd>
      <LoanOutstandingInd>0</LoanOutstandingInd>
      <GrantToRelatedPersonInd>0</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>0</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>0</BusinessRlnWithFamMemInd>
      <BusinessRlnWith35CtrlEntInd>0</BusinessRlnWith35CtrlEntInd>
      <DeductibleNonCashContriInd referenceDocumentId="RetDoc1042900001">1</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd referenceDocumentId="RetDoc1042900001">0</DeductibleArtContributionInd>
      <TerminateOperationsInd>0</TerminateOperationsInd>
      <PartialLiquidationInd>0</PartialLiquidationInd>
      <DisregardedEntityInd>0</DisregardedEntityInd>
      <RelatedEntityInd>0</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>0</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd>0</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>1</ScheduleORequiredInd>
      <IRPDocumentCnt>2</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <EmployeeCnt>28</EmployeeCnt>
      <EmploymentTaxReturnsFiledInd>1</EmploymentTaxReturnsFiledInd>
      <UnrelatedBusIncmOverLimitInd>0</UnrelatedBusIncmOverLimitInd>
      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>0</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>0</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>0</NondeductibleContributionsInd>
      <QuidProQuoContributionsInd>0</QuidProQuoContributionsInd>
      <Form8282PropertyDisposedOfInd>0</Form8282PropertyDisposedOfInd>
      <IndoorTanningServicesInd>0</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>0</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>0</SubjectToExcsTaxNetInvstIncInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>10</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>10</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>0</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>0</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>0</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>0</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>0</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>0</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>0</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>1</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>1</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>0</OfficerMailingAddressInd>
      <LocalChaptersInd>0</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>0</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>1</ConflictOfInterestPolicyInd>
      <AnnualDisclosureCoveredPrsnInd>1</AnnualDisclosureCoveredPrsnInd>
      <RegularMonitoringEnfrcInd>1</RegularMonitoringEnfrcInd>
      <WhistleblowerPolicyInd>0</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>0</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>1</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>1</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>0</InvestmentInJointVentureInd>
      <StatesWhereCopyOfReturnIsFldCd>WI</StatesWhereCopyOfReturnIsFldCd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <BusinessName>
          <BusinessNameLine1Txt>UNDERDOG PET RESCUE</BusinessNameLine1Txt>
        </BusinessName>
        <PhoneNum>6082240018</PhoneNum>
        <USAddress>
          <AddressLine1Txt>2508 S STOUGHTON ROAD</AddressLine1Txt>
          <CityNm>MADISON</CityNm>
          <StateAbbreviationCd>WI</StateAbbreviationCd>
          <ZIPCd>53716</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <Form990PartVIISectionAGrp>
        <PersonNm>MELISSA BURCHELL-DOGRA</PersonNm>
        <TitleTxt>CHAIR</TitleTxt>
        <AverageHoursPerWeekRt>10.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>TRACY BUGLASS</PersonNm>
        <TitleTxt>VICE CHAIR</TitleTxt>
        <AverageHoursPerWeekRt>5.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>STEVE TICKNOR</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DIANE FREMGEN</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHoursPerWeekRt>5.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>AUTUMN NERO</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>RAVEN STORM</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SIGRID FANALE</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LAUREN TOLER SR</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>AMY CALLAHAN</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>NATALEE CRUSE</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>5.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LAUREN BRINKMAN</PersonNm>
        <TitleTxt>EXECUTIVE DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>68941</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>18667</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>68941</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>18667</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>0</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>0</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <CntrctRcvdGreaterThan100KCnt>0</CntrctRcvdGreaterThan100KCnt>
      <FundraisingAmt>43059</FundraisingAmt>
      <AllOtherContributionsAmt>814172</AllOtherContributionsAmt>
      <NoncashContributionsAmt>49017</NoncashContributionsAmt>
      <TotalContributionsAmt>857231</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>VETERINARY SERVICES</Desc>
        <BusinessCd>541900</BusinessCd>
        <TotalRevenueColumnAmt>767442</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>767442</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>ADOPTIONS</Desc>
        <BusinessCd>812900</BusinessCd>
        <TotalRevenueColumnAmt>237157</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>237157</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>1004599</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>1024</TotalRevenueColumnAmt>
        <ExclusionAmt>1024</ExclusionAmt>
      </InvestmentIncomeGrp>
      <FundraisingGrossIncomeAmt>14718</FundraisingGrossIncomeAmt>
      <ContriRptFundraisingEventAmt>43059</ContriRptFundraisingEventAmt>
      <FundraisingDirectExpensesAmt>30178</FundraisingDirectExpensesAmt>
      <NetIncmFromFundraisingEvtGrp>
        <TotalRevenueColumnAmt>-15460</TotalRevenueColumnAmt>
        <ExclusionAmt>-15460</ExclusionAmt>
      </NetIncmFromFundraisingEvtGrp>
      <GrossSalesOfInventoryAmt>14922</GrossSalesOfInventoryAmt>
      <CostOfGoodsSoldAmt>4805</CostOfGoodsSoldAmt>
      <NetIncomeOrLossGrp>
        <TotalRevenueColumnAmt>10117</TotalRevenueColumnAmt>
        <ExclusionAmt>10117</ExclusionAmt>
      </NetIncomeOrLossGrp>
      <OtherRevenueMiscGrp>
        <Desc>MISCELLANEOUS</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>125</TotalRevenueColumnAmt>
        <ExclusionAmt>125</ExclusionAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueTotalAmt>125</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>1857636</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1004599</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>-4194</ExclusionAmt>
      </TotalRevenueGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>87610</TotalAmt>
        <ProgramServicesAmt>64621</ProgramServicesAmt>
        <ManagementAndGeneralAmt>22989</ManagementAndGeneralAmt>
      </CompCurrentOfcrDirectorsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>663072</TotalAmt>
        <ProgramServicesAmt>624868</ProgramServicesAmt>
        <ManagementAndGeneralAmt>38204</ManagementAndGeneralAmt>
      </OtherSalariesAndWagesGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>58673</TotalAmt>
        <ProgramServicesAmt>58673</ProgramServicesAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>60826</TotalAmt>
        <ProgramServicesAmt>57785</ProgramServicesAmt>
        <ManagementAndGeneralAmt>3041</ManagementAndGeneralAmt>
      </PayrollTaxesGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>36500</TotalAmt>
        <ProgramServicesAmt>27375</ProgramServicesAmt>
        <ManagementAndGeneralAmt>9125</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>3981</TotalAmt>
        <ManagementAndGeneralAmt>3981</ManagementAndGeneralAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
        <TotalAmt>7244</TotalAmt>
        <ProgramServicesAmt>5356</ProgramServicesAmt>
        <FundraisingAmt>1888</FundraisingAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>10992</TotalAmt>
        <ProgramServicesAmt>5966</ProgramServicesAmt>
        <ManagementAndGeneralAmt>5026</ManagementAndGeneralAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>19018</TotalAmt>
        <ProgramServicesAmt>14264</ProgramServicesAmt>
        <ManagementAndGeneralAmt>4754</ManagementAndGeneralAmt>
      </InformationTechnologyGrp>
      <OccupancyGrp>
        <TotalAmt>45606</TotalAmt>
        <ProgramServicesAmt>43326</ProgramServicesAmt>
        <ManagementAndGeneralAmt>2280</ManagementAndGeneralAmt>
      </OccupancyGrp>
      <TravelGrp>
        <TotalAmt>15826</TotalAmt>
        <ProgramServicesAmt>14110</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1716</ManagementAndGeneralAmt>
      </TravelGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>22375</TotalAmt>
        <ProgramServicesAmt>22375</ProgramServicesAmt>
      </ConferencesMeetingsGrp>
      <InterestGrp>
        <TotalAmt>70372</TotalAmt>
        <ManagementAndGeneralAmt>70372</ManagementAndGeneralAmt>
      </InterestGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>52926</TotalAmt>
        <ManagementAndGeneralAmt>52926</ManagementAndGeneralAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>16156</TotalAmt>
        <ProgramServicesAmt>12925</ProgramServicesAmt>
        <ManagementAndGeneralAmt>3231</ManagementAndGeneralAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>VETERINARY SUPPLIES &amp; E</Desc>
        <TotalAmt>327201</TotalAmt>
        <ProgramServicesAmt>327201</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>BANK &amp; CREDIT CARD FEES</Desc>
        <TotalAmt>29663</TotalAmt>
        <ManagementAndGeneralAmt>29663</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>DUES &amp; SUBSCRIPTIONS</Desc>
        <TotalAmt>3928</TotalAmt>
        <ProgramServicesAmt>3928</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>MISCELLANEOUS</Desc>
        <TotalAmt>758</TotalAmt>
        <ManagementAndGeneralAmt>758</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>415</TotalAmt>
        <ProgramServicesAmt>79</ProgramServicesAmt>
        <ManagementAndGeneralAmt>336</ManagementAndGeneralAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>1533142</TotalAmt>
        <ProgramServicesAmt>1282852</ProgramServicesAmt>
        <ManagementAndGeneralAmt>248402</ManagementAndGeneralAmt>
        <FundraisingAmt>1888</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>53881</BOYAmt>
        <EOYAmt>56199</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>509</BOYAmt>
        <EOYAmt>117894</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <InventoriesForSaleOrUseGrp>
        <EOYAmt>14116</EOYAmt>
      </InventoriesForSaleOrUseGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>21789</BOYAmt>
        <EOYAmt>10264</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>911896</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>132026</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>723333</BOYAmt>
        <EOYAmt>779870</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <TotalAssetsGrp>
        <BOYAmt>799512</BOYAmt>
        <EOYAmt>978343</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>147206</BOYAmt>
        <EOYAmt>60893</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <LoansFromOfficersDirectorsGrp>
        <BOYAmt>44000</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </LoansFromOfficersDirectorsGrp>
      <MortgNotesPyblScrdInvstPropGrp>
        <BOYAmt>576570</BOYAmt>
        <EOYAmt>565198</EOYAmt>
      </MortgNotesPyblScrdInvstPropGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>35827</BOYAmt>
        <EOYAmt>31849</EOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>803603</BOYAmt>
        <EOYAmt>657940</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>-4091</BOYAmt>
        <EOYAmt>176900</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <DonorRestrictionNetAssetsGrp>
        <EOYAmt>143503</EOYAmt>
      </DonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>-4091</BOYAmt>
        <EOYAmt>320403</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>799512</BOYAmt>
        <EOYAmt>978343</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>324494</ReconcilationRevenueExpnssAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>258396</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>390910</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>380969</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>472921</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>857231</CurrentTaxYearAmt>
        <TotalAmt>2360427</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus4YearsAmt>760548</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>708728</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>864822</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>931769</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1019521</CurrentTaxYearAmt>
        <TotalAmt>4285388</TotalAmt>
      </GrossReceiptsAdmissionsGrp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>1018944</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>1099638</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1245791</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1404690</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1876752</CurrentTaxYearAmt>
        <TotalAmt>6645815</TotalAmt>
      </Total509Grp>
      <AmountsRcvdDsqlfyPersonGrp>
        <CurrentTaxYearMinus3YearsAmt>11782</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>5000</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearAmt>12974</CurrentTaxYearAmt>
        <TotalAmt>29756</TotalAmt>
      </AmountsRcvdDsqlfyPersonGrp>
      <SubstantialContributorsAmtGrp>
        <CurrentTaxYearMinus3YearsAmt>47050</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus1YearAmt>45950</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>345963</CurrentTaxYearAmt>
        <TotalAmt>438963</TotalAmt>
      </SubstantialContributorsAmtGrp>
      <SubstAndDsqlfyPrsnsTotGrp>
        <CurrentTaxYearMinus3YearsAmt>58832</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>5000</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>45950</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>358937</CurrentTaxYearAmt>
        <TotalAmt>468719</TotalAmt>
      </SubstAndDsqlfyPrsnsTotGrp>
      <PublicSupportTotal509Amt>6177096</PublicSupportTotal509Amt>
      <GrossInvestmentIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>21</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>200</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1406</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>180</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1024</CurrentTaxYearAmt>
        <TotalAmt>2831</TotalAmt>
      </GrossInvestmentIncome509Grp>
      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearMinus4YearsAmt>21</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>200</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1406</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>180</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1024</CurrentTaxYearAmt>
        <TotalAmt>2831</TotalAmt>
      </InvestmentIncomeAndUBTIGrp>
      <OtherIncome509Grp>
        <CurrentTaxYearMinus3YearsAmt>124</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>128</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>146</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>126</CurrentTaxYearAmt>
        <TotalAmt>524</TotalAmt>
      </OtherIncome509Grp>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>1018965</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>1099962</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1247325</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1405016</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1877902</CurrentTaxYearAmt>
        <TotalAmt>6649170</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>0.92900</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.98010</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.00040</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.00030</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>SCHEDULE A, PART III, LINE 12, EXPLANATION OF OTHER INCOME:</FormAndLineReferenceDesc>
        <ExplanationTxt>MISCELLANEOUS - 2022 AMOUNT: $ 124. 2023 AMOUNT: $ 128. 2024 AMOUNT: $ 146. 2025 AMOUNT: $ 126.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1234500001">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <BuildingsGrp>
        <OtherCostOrOtherBasisAmt>744635</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>56698</DepreciationAmt>
        <BookValueAmt>687937</BookValueAmt>
      </BuildingsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>167261</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>75328</DepreciationAmt>
        <BookValueAmt>91933</BookValueAmt>
      </EquipmentGrp>
      <TotalBookValueLandBuildingsAmt>779870</TotalBookValueLandBuildingsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>REFUNDABLE ADVANCE</Desc>
        <Amt>31849</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>31849</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>1862441</TotalRevEtcAuditedFinclStmtAmt>
      <OtherRevenueAmt>4805</OtherRevenueAmt>
      <RevenueNotReportedAmt>4805</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>1857636</RevenueSubtotalAmt>
      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>1857636</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>1537947</TotExpnsEtcAuditedFinclStmtAmt>
      <OtherExpensesIncludedAmt>4805</OtherExpensesIncludedAmt>
      <ExpensesNotReportedAmt>4805</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>1533142</ExpensesSubtotalAmt>
      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>1533142</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>UNDERDOG IS A NONPROFIT ORGANIZATION EXEMPT FROM INCOME TAXES UNDER SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE. IN ADDITION, UNDERDOG HAS BEEN CLASSIFIED AS AN ORGANIZATION THAT IS NOT A PRIVATE FOUNDATION UNDER SECTION 509(A)(2) AND IS EXEMPT FROM WISCONSIN INCOME AND FRANCHISE TAXES. UNDERDOG HAS ADOPTED ACCOUNTING GUIDANCE FOR RECOGNIZING AND MEASURING UNCERTAIN TAX POSITIONS. UNDERDOG FOLLOWS THE STATUTORY REQUIREMENTS FOR THEIR INCOME TAX ACCOUNTING AND GENERALLY AVOID RISKS ASSOCIATED WITH POTENTIALLY PROBLEMATIC TAX POSITIONS THAT MAY BE CHALLENGED UPON EXAMINATION. MANAGEMENT BELIEVES ANY LIABILITY RESULTING FROM TAXING AUTHORITIES IMPOSING ADDITIONAL INCOME TAXES FROM ACTIVITIES DEEMED TO BE UNRELATED TO UNDERDOG'S TAX-EXEMPT STATUS WOULD NOT HAVE A MATERIAL EFFECT ON THE ACCOMPANYING FINANCIAL STATEMENTS. UNDERDOG'S FEDERAL EXEMPT ORGANIZATION TAX RETURNS ARE SUBJECT TO EXAMINATION BY THE INTERNAL REVENUE SERVICE, GENERALLY FOR THREE YEARS AFTER THEY ARE FILED. WITH FEW EXCEPTIONS, UNDERDOG IS NO LONGER SUBJECT TO SUCH EXAMINATIONS FOR YEARS BEFORE 2022.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XI, LINE 2D - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>COST OF GOODS SOLD 4,805.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XII, LINE 2D - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>COST OF GOODS SOLD 4,805.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleG documentId="RetDoc1041300001">
      <FundraisingEventInformationGrp>
        <Event1Nm>WAGS &amp; WHISKERS</Event1Nm>
        <GrossReceiptsEvent1Amt>57777</GrossReceiptsEvent1Amt>
        <CharitableContriEvent1Amt>43059</CharitableContriEvent1Amt>
        <GrossRevenueEvent1Amt>14718</GrossRevenueEvent1Amt>
        <NonCashPrizesEvent1Amt>8838</NonCashPrizesEvent1Amt>
        <RentFacilityCostsEvent1Amt>2700</RentFacilityCostsEvent1Amt>
        <FoodAndBeverageEvent1Amt>9590</FoodAndBeverageEvent1Amt>
        <EntertainmentEvent1Amt>450</EntertainmentEvent1Amt>
        <OtherDirectExpensesEvent1Amt>8600</OtherDirectExpensesEvent1Amt>
        <GrossReceiptsTotalAmt>57777</GrossReceiptsTotalAmt>
        <CharitableContributionsTotAmt>43059</CharitableContributionsTotAmt>
        <GrossRevenueTotalEventsAmt>14718</GrossRevenueTotalEventsAmt>
        <NonCashPrizesTotalEventsAmt>8838</NonCashPrizesTotalEventsAmt>
        <RentFcltyCostsTotalEventsAmt>2700</RentFcltyCostsTotalEventsAmt>
        <FoodAndBeverageTotalEventsAmt>9590</FoodAndBeverageTotalEventsAmt>
        <EntertainmentTotalEventsAmt>450</EntertainmentTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>8600</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>30178</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>-15460</NetIncomeSummaryAmt>
      </FundraisingEventInformationGrp>
    </IRS990ScheduleG>
    <IRS990ScheduleM documentId="RetDoc1042900001">
      <CarsAndOtherVehiclesGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>3977</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FAIR MARKET VALUE</MethodOfDeterminingRevenuesTxt>
      </CarsAndOtherVehiclesGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>PET SUPPLIES</Desc>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>24500</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FAIR MARKET VALUE</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>FUNDRASING AUCTION ITEMS</Desc>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>8838</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FAIR MARKET VALUE</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>FUNDRASING ADVERTISING</Desc>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>8000</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FAIR MARKET VALUE</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>VET SERVICES</Desc>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>3702</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FAIR MARKET VALUE</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <AnyPropertyThatMustBeHeldInd>0</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>0</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>0</ThirdPartiesUsedInd>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>UPON FILING, ALL BOARD MEMBERS WILL RECEIVE A FINAL DIGITAL COPY OF THE RETURN.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>BUSINESS IS NOT CONDUCTED WITH BOARD MEMBERS; ADOPTIONS OR VET SERVICES WOULD BE PROCESSED AS ORDINARY BUSINESS THROUGH THE ORDINARY PROCESSING PROCEDURES AS WITH ANY NON-MEMBER SERVICE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>WAGES ARE DETERMINED BY THE EXECUTIVE DIRECTOR BASED ON MARKET SURVEY. UPON DETERMINATION, WAGES ARE SUBMITTED TO THE BOARD OF DIRECTORS FOR APPROVAL PRIOR TO BECOMING EFFECTIVE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>GOVERNING DOCUMENTS, POLICIES, AND FINANCIAL STATEMENTS ARE PROVIDED TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>