﻿<?xml version="1.0" encoding="utf-8"?>
<Return returnVersion="2023v5.1" xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.irs.gov/efile">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-10-15T11:50:41-07:00</ReturnTs>
    <TaxPeriodEndDt>2024-06-30</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmName>
        <BusinessNameLine1Txt>B &amp; K Tax Service</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>1000 Texas St Suite I</AddressLine1Txt>
        <CityNm>Fairfield</CityNm>
        <StateAbbreviationCd>CA</StateAbbreviationCd>
        <ZIPCd>94533</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-07-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>680466694</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>Markham Parent Teacher Organization</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>MARK</BusinessNameControlTxt>
      <PhoneNum>7074536230</PhoneNum>
      <USAddress>
        <AddressLine1Txt>101 Markham Avenue</AddressLine1Txt>
        <CityNm>Vacaville</CityNm>
        <StateAbbreviationCd>CA</StateAbbreviationCd>
        <ZIPCd>95688</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Erin Lazaro</PersonNm>
      <PersonTitleTxt>Markham PTO Treasurer</PersonTitleTxt>
      <PhoneNum>7074536230</PhoneNum>
      <SignatureDt>2024-10-14</SignatureDt>
      <DiscussWithPaidPreparerInd>false</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <PreparerPersonGrp>
      <PreparerPersonNm>Kristie Shields</PreparerPersonNm>
      <PTIN>P00766764</PTIN>
      <PhoneNum>7074195637</PhoneNum>
      <SelfEmployedInd>X</SelfEmployedInd>
    </PreparerPersonGrp>
    <TaxYr>2023</TaxYr>
    <BuildTS>2024-10-15 13:58:12Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="4">
    <IRS990EZ accountingPeriodChangeApprvCd="FORM 1128 WAS APPROVED" accountingPeriodChangeCd="CHANGE OF ACCOUNTING PERIOD" documentId="000000000000000000000000000001" referenceDocumentId="000000000000000000000000000004">
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <Organization501c3Ind referenceDocumentId="000000000000000000000000000002">X</Organization501c3Ind>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>109125</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>0</ContributionsGiftsGrantsEtcAmt>
      <ProgramServiceRevenueAmt>5000</ProgramServiceRevenueAmt>
      <GainOrLossFromSaleOfAssetsAmt>0</GainOrLossFromSaleOfAssetsAmt>
      <GamingGrossIncomeAmt referenceDocumentId="000000000000000000000000000003">0</GamingGrossIncomeAmt>
      <FundraisingGrossIncomeAmt referenceDocumentId="000000000000000000000000000003">51379</FundraisingGrossIncomeAmt>
      <SpecialEventsNetIncomeLossAmt>51379</SpecialEventsNetIncomeLossAmt>
      <GrossProfitLossSlsOfInvntryAmt>0</GrossProfitLossSlsOfInvntryAmt>
      <OtherRevenueTotalAmt>52746</OtherRevenueTotalAmt>
      <TotalRevenueAmt>109125</TotalRevenueAmt>
      <OtherExpensesTotalAmt>152419</OtherExpensesTotalAmt>
      <TotalExpensesAmt>152419</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>-43294</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>79376</NetAssetsOrFundBalancesBOYAmt>
      <OtherChangesInNetAssetsAmt>1410</OtherChangesInNetAssetsAmt>
      <NetAssetsOrFundBalancesEOYAmt>37492</NetAssetsOrFundBalancesEOYAmt>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>79376</BOYAmt>
        <EOYAmt>37492</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <Form990TotalAssetsGrp>
        <BOYAmt>79376</BOYAmt>
        <EOYAmt>37492</EOYAmt>
      </Form990TotalAssetsGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>79376</BOYAmt>
        <EOYAmt>37492</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <PrimaryExemptPurposeTxt>Provide assistance with field trips, transportation, school equipment and enrichment.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>Enrichment Opportunities Field trips, Reading programs, winter events</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>0</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>Fundraising General donations</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>0</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>Fundraising by event Color Run, Festivals, vendor sponsored events</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>0</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>Fundraising by teacher and pep groups</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>0</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>0</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Mara Sammartino</PersonNm>
        <TitleTxt>President</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>20</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Anureet Johl</PersonNm>
        <TitleTxt>Vice President</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>15</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Erin Lazaro</PersonNm>
        <TitleTxt>Treasurer</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>15</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Michel Pichardo</PersonNm>
        <TitleTxt>Co Secretary</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>10</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Lori Kelly</PersonNm>
        <TitleTxt>Co Secretary</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>10</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>false</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>false</OrganizationHadUBIInd>
      <OrganizationFiled990TInd>false</OrganizationFiled990TInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>false</OrganizationDissolvedEtcInd>
      <Form1120PolFiledInd>false</Form1120PolFiledInd>
      <MadeLoansToFromOfficersInd>false</MadeLoansToFromOfficersInd>
      <EngagedInExcessBenefitTransInd>false</EngagedInExcessBenefitTransInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <BooksInCareOfDetail>
        <PersonNm>Erin Lazaro PTO Treasurer</PersonNm>
        <USAddress>
          <AddressLine1Txt>101 Markham Avenue</AddressLine1Txt>
          <CityNm>Vacaville</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>95688</ZIPCd>
        </USAddress>
        <PhoneNum>7074536230</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <DonorAdvisedFndsInd>false</DonorAdvisedFndsInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <TanningServicesProvidedInd>false</TanningServicesProvidedInd>
      <Form720FiledInd>false</Form720FiledInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd>false</TransactionWithControlEntInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>false</LobbyingActivitiesInd>
      <SchoolOperatingInd>false</SchoolOperatingInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>false</TrnsfrExmptNonChrtblRltdOrgInd>
      <RelatedOrgSect527OrgInd>false</RelatedOrgSect527OrgInd>
      <PartVIOfCompOfHghstPdEmplTxt>NONE</PartVIOfCompOfHghstPdEmplTxt>
      <PartVIHghstPdCntrctProfSrvcTxt>NONE</PartVIHghstPdCntrctProfSrvcTxt>
      <FiledScheduleAInd>false</FiledScheduleAInd>
    </IRS990EZ>
    <IRS990ScheduleA documentId="000000000000000000000000000002">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearAmt>3704</CurrentTaxYearAmt>
        <TotalAmt>3704</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TaxRevLeviedOrgnztnlBnft170Grp>
        <TotalAmt>0</TotalAmt>
      </TaxRevLeviedOrgnztnlBnft170Grp>
      <GovtFurnSrvcFcltsVl170Grp>
        <TotalAmt>0</TotalAmt>
      </GovtFurnSrvcFcltsVl170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>0</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>0</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>0</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>0</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>3704</CurrentTaxYearAmt>
        <TotalAmt>3704</TotalAmt>
      </TotalCalendarYear170Grp>
      <PublicSupportTotal170Amt>3704</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <TotalAmt>0</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <UnrelatedBusinessNetIncm170Grp>
        <TotalAmt>0</TotalAmt>
      </UnrelatedBusinessNetIncm170Grp>
      <OtherIncome170Grp>
        <TotalAmt>0</TotalAmt>
      </OtherIncome170Grp>
      <TotalSupportAmt>3704</TotalSupportAmt>
      <PublicSupportCY170Pct>1.00000</PublicSupportCY170Pct>
      <MinimumAssetAmountGrp>
        <AverageMonthlyFMVOfSecGrp>
          <PriorYearAmt>0</PriorYearAmt>
        </AverageMonthlyFMVOfSecGrp>
        <AverageMonthlyCashBalancesGrp>
          <PriorYearAmt>0</PriorYearAmt>
        </AverageMonthlyCashBalancesGrp>
        <FMVOtherNonExemptUseAssetGrp>
          <PriorYearAmt>0</PriorYearAmt>
        </FMVOtherNonExemptUseAssetGrp>
        <TotalFMVOfNonExemptUseAssetGrp>
          <PriorYearAmt>0</PriorYearAmt>
          <CurrentYearAmt>0</CurrentYearAmt>
        </TotalFMVOfNonExemptUseAssetGrp>
        <DiscountClaimedAmt>0</DiscountClaimedAmt>
        <AcquisitionIndebtednessGrp>
          <PriorYearAmt>0</PriorYearAmt>
        </AcquisitionIndebtednessGrp>
        <AdjustedFMVLessIndebtednessGrp>
          <PriorYearAmt>0</PriorYearAmt>
        </AdjustedFMVLessIndebtednessGrp>
        <CashDeemedCharitableGrp>
          <PriorYearAmt>0</PriorYearAmt>
        </CashDeemedCharitableGrp>
        <NetVlNonExemptUseAssetsGrp>
          <PriorYearAmt>0</PriorYearAmt>
        </NetVlNonExemptUseAssetsGrp>
        <PctOfNetVlNonExemptUseAstGrp>
          <PriorYearAmt>0</PriorYearAmt>
        </PctOfNetVlNonExemptUseAstGrp>
        <RecoveriesPYDistriMinAssetGrp>
          <PriorYearAmt>0</PriorYearAmt>
        </RecoveriesPYDistriMinAssetGrp>
        <TotalMinimumAssetGrp>
          <PriorYearAmt>0</PriorYearAmt>
        </TotalMinimumAssetGrp>
      </MinimumAssetAmountGrp>
      <DistributableAmountGrp>
        <CYAdjNetIncomeDistributableAmt>0</CYAdjNetIncomeDistributableAmt>
        <CYPct85AdjustedNetIncomeAmt>0</CYPct85AdjustedNetIncomeAmt>
        <CYTotalMinAstDistributableAmt>0</CYTotalMinAstDistributableAmt>
        <CYGreaterAdjustedMinimumAmt>0</CYGreaterAdjustedMinimumAmt>
        <CYIncomeTaxImposedPYAmt>0</CYIncomeTaxImposedPYAmt>
        <CYDistributableAsAdjustedAmt>0</CYDistributableAsAdjustedAmt>
      </DistributableAmountGrp>
      <DistributionsGrp>
        <CYPaidAccomplishExemptPrpsAmt>0</CYPaidAccomplishExemptPrpsAmt>
        <CYPdInExcessIncomeActivityAmt>0</CYPdInExcessIncomeActivityAmt>
        <CYAdministrativeExpensePaidAmt>0</CYAdministrativeExpensePaidAmt>
        <ExemptUseAssetsAcquisPaidAmt>0</ExemptUseAssetsAcquisPaidAmt>
        <QualifiedSetAsideAmt>0</QualifiedSetAsideAmt>
        <CYOtherDistributionsAmt>0</CYOtherDistributionsAmt>
        <CYTotalAnnualDistributionsAmt>0</CYTotalAnnualDistributionsAmt>
        <CYDistriAttentiveSuprtOrgAmt>0</CYDistriAttentiveSuprtOrgAmt>
        <CYDistributableAsAdjustedAmt>0</CYDistributableAsAdjustedAmt>
        <CYDistributionYrRt>0</CYDistributionYrRt>
      </DistributionsGrp>
      <DistributionAllocationsGrp>
        <CYDistributableAsAdjustedAmt>0</CYDistributableAsAdjustedAmt>
        <UnderdistributionsAmt>0</UnderdistributionsAmt>
        <ExcessDistributionCyovYr5Amt>0</ExcessDistributionCyovYr5Amt>
        <ExcessDistributionCyovYr4Amt>0</ExcessDistributionCyovYr4Amt>
        <ExcessDistributionCyovYr3Amt>0</ExcessDistributionCyovYr3Amt>
        <ExcessDistributionCyovYr2Amt>0</ExcessDistributionCyovYr2Amt>
        <ExcessDistributionCyovYr1Amt>0</ExcessDistributionCyovYr1Amt>
        <TotalExcessDistributionCyovAmt>0</TotalExcessDistributionCyovAmt>
        <CyovAppliedUnderdistriPYAmt>0</CyovAppliedUnderdistriPYAmt>
        <CyovAppliedUnderdistrCPYAmt>0</CyovAppliedUnderdistrCPYAmt>
        <CarryoverPYNotAppliedAmt>0</CarryoverPYNotAppliedAmt>
        <ExcessDistributionCyovAmt>0</ExcessDistributionCyovAmt>
        <CYTotalAnnualDistributionsAmt>0</CYTotalAnnualDistributionsAmt>
        <CYDistribAppUnderdistriPYAmt>0</CYDistribAppUnderdistriPYAmt>
        <CYDistriAppDistributableAmt>0</CYDistriAppDistributableAmt>
        <ExcessDistributionAmt>0</ExcessDistributionAmt>
        <RemainingUnderdistriPYAmt>0</RemainingUnderdistriPYAmt>
        <RemainingUnderdistriCYAmt>0</RemainingUnderdistriCYAmt>
        <ExcessDistriCyovToNextYrAmt>0</ExcessDistriCyovToNextYrAmt>
        <ExcessFromYear5Amt>0</ExcessFromYear5Amt>
        <ExcessFromYear4Amt>0</ExcessFromYear4Amt>
        <ExcessFromYear3Amt>0</ExcessFromYear3Amt>
        <ExcessFromYear2Amt>0</ExcessFromYear2Amt>
        <ExcessFromYear1Amt>0</ExcessFromYear1Amt>
      </DistributionAllocationsGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleG documentId="000000000000000000000000000003">
      <InPersonSolicitationsInd>X</InPersonSolicitationsInd>
      <SpecialFundraisingEventsInd>X</SpecialFundraisingEventsInd>
      <AgrmtProfFundraisingActyInd>false</AgrmtProfFundraisingActyInd>
      <TotalGrossReceiptsAmt>0</TotalGrossReceiptsAmt>
      <TotalRetainedByContractorsAmt>0</TotalRetainedByContractorsAmt>
      <TotalNetToOrganizationAmt>0</TotalNetToOrganizationAmt>
      <FundraisingEventInformationGrp>
        <GrossReceiptsEvent1Amt>51379</GrossReceiptsEvent1Amt>
        <GrossRevenueEvent1Amt>51379</GrossRevenueEvent1Amt>
        <GrossRevenueEvent2Amt>0</GrossRevenueEvent2Amt>
        <GrossRevenueOtherEventsAmt>0</GrossRevenueOtherEventsAmt>
        <GrossReceiptsTotalAmt>51379</GrossReceiptsTotalAmt>
        <CharitableContributionsTotAmt>0</CharitableContributionsTotAmt>
        <GrossRevenueTotalEventsAmt>51379</GrossRevenueTotalEventsAmt>
        <CashPrizesTotalEventsAmt>0</CashPrizesTotalEventsAmt>
        <NonCashPrizesTotalEventsAmt>0</NonCashPrizesTotalEventsAmt>
        <RentFcltyCostsTotalEventsAmt>0</RentFcltyCostsTotalEventsAmt>
        <FoodAndBeverageTotalEventsAmt>0</FoodAndBeverageTotalEventsAmt>
        <EntertainmentTotalEventsAmt>0</EntertainmentTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>0</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>0</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>51379</NetIncomeSummaryAmt>
      </FundraisingEventInformationGrp>
      <GamingInformationGrp>
        <VolunteerLaborBingoInd>false</VolunteerLaborBingoInd>
        <VolunteerLaborPullTabsInd>false</VolunteerLaborPullTabsInd>
        <VolunteerLaborOtherGamingInd>false</VolunteerLaborOtherGamingInd>
      </GamingInformationGrp>
      <LicensedInd>false</LicensedInd>
      <LicenseSuspendedEtcInd>false</LicenseSuspendedEtcInd>
      <GamingWithNonmembersInd>false</GamingWithNonmembersInd>
      <MemberOfOtherEntityInd>false</MemberOfOtherEntityInd>
      <CntrctWith3rdPrtyForGameRevInd>false</CntrctWith3rdPrtyForGameRevInd>
      <CharitableDistributionRqrInd>false</CharitableDistributionRqrInd>
    </IRS990ScheduleG>
    <IRS990ScheduleO documentId="000000000000000000000000000004">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part 1 line 8</FormAndLineReferenceDesc>
        <ExplanationTxt>Carryover of funds from prior year</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part 1 line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>Description of event expenses</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part 1 line 20</FormAndLineReferenceDesc>
        <ExplanationTxt>Amount included after close of books</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>