﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" returnVersion="2023v5.1">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-10-29T16:06:13-04:00</ReturnTs>
    <TaxPeriodEndDt>2023-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmName>
        <BusinessNameLine1Txt>QUIMBAYO INCOME TAX SERVICE</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>2013 W BEVERLY BLVD SUITE B</AddressLine1Txt>
        <CityNm>Montebello</CityNm>
        <StateAbbreviationCd>CA</StateAbbreviationCd>
        <ZIPCd>90640</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>330684912</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>COSTANOAN RUMSEN CARMEL TRIBE</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>COST</BusinessNameControlTxt>
      <USAddress>
        <AddressLine1Txt>602 W FERNLEAF AVE</AddressLine1Txt>
        <CityNm>POMONA</CityNm>
        <StateAbbreviationCd>CA</StateAbbreviationCd>
        <ZIPCd>91766</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>CARLA OPPOLITI</PersonNm>
      <PersonTitleTxt>TREASURER</PersonTitleTxt>
      <PhoneNum>9513127752</PhoneNum>
      <SignatureDt>2024-09-23</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>true</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>MIKE QUIMBAYO</PreparerPersonNm>
      <PTIN>P00914605</PTIN>
      <PhoneNum>3238329457</PhoneNum>
      <PreparationDt>2024-10-29</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2023</TaxYr>
    <BuildTS>2024-10-15 13:58:12Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="3">
    <IRS990EZ documentId="IRS990EZ">
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <Organization501c3Ind referenceDocumentId="990A">X</Organization501c3Ind>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>25135</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>25135</ContributionsGiftsGrantsEtcAmt>
      <TotalRevenueAmt>25135</TotalRevenueAmt>
      <OtherExpensesTotalAmt>31102</OtherExpensesTotalAmt>
      <TotalExpensesAmt>31102</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>-5967</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>12513</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>6546</NetAssetsOrFundBalancesEOYAmt>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>12513</BOYAmt>
        <EOYAmt>6546</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <LandAndBuildingsGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </LandAndBuildingsGrp>
      <OtherAssetsTotalDetail>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </OtherAssetsTotalDetail>
      <Form990TotalAssetsGrp>
        <BOYAmt>12513</BOYAmt>
        <EOYAmt>6546</EOYAmt>
      </Form990TotalAssetsGrp>
      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </SumOfTotalLiabilitiesGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>12513</BOYAmt>
        <EOYAmt>6546</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <PrimaryExemptPurposeTxt>TRIBE EDUCATION OF HERITAGE</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>TO PROVIDE EDUCATION OF RUMSEN OHLONE LANGUAGE, CULTURE AND TRADITIONSTO PROVIDE OPPORTUNITIES FOR TRIBAL MEMBERS TO ENGAGE IN CULTURAL KNOWLEDGE AND PRACTICE</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>31104</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>31104</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>CARLA ELIZABETH IPPOLITI</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>false</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>false</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>false</OrganizationDissolvedEtcInd>
      <Form1120PolFiledInd>false</Form1120PolFiledInd>
      <MadeLoansToFromOfficersInd>false</MadeLoansToFromOfficersInd>
      <EngagedInExcessBenefitTransInd>false</EngagedInExcessBenefitTransInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <StatesWhereCopyOfReturnIsFldCd>CA</StatesWhereCopyOfReturnIsFldCd>
      <BooksInCareOfDetail>
        <PersonNm>CARLA ELIZABETH RAMONA IPPOLITI</PersonNm>
        <USAddress>
          <AddressLine1Txt>244 E 1ST STREET</AddressLine1Txt>
          <CityNm>POMONA</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>91766</ZIPCd>
        </USAddress>
        <PhoneNum>9513517752</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <DonorAdvisedFndsInd>false</DonorAdvisedFndsInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <TanningServicesProvidedInd>false</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd>false</TransactionWithControlEntInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>false</LobbyingActivitiesInd>
      <SchoolOperatingInd>false</SchoolOperatingInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>false</TrnsfrExmptNonChrtblRltdOrgInd>
      <PartVIOfCompOfHghstPdEmplTxt>NONE</PartVIOfCompOfHghstPdEmplTxt>
      <PartVIHghstPdCntrctProfSrvcTxt>NONE</PartVIHghstPdCntrctProfSrvcTxt>
      <FiledScheduleAInd>true</FiledScheduleAInd>
    </IRS990EZ>
    <IRS990ScheduleA documentId="990A">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>18348</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>8056</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>3534</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>31106</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>25135</CurrentTaxYearAmt>
        <TotalAmt>86179</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>18348</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>8056</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>3534</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>31106</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>25135</CurrentTaxYearAmt>
        <TotalAmt>86179</TotalAmt>
      </Total509Grp>
      <PublicSupportTotal509Amt>86179</PublicSupportTotal509Amt>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>18348</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>8056</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>3534</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>31106</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>25135</CurrentTaxYearAmt>
        <TotalAmt>86179</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>1.00000</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>1.00000</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.00000</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.00000</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleO documentId="990O">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Description of other expenses Part I line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION AMOUNTRENT 9,015BANK FEES 60CAR RENTAL TRAVEL TO EVENT 1,870TRAVEL LODGING FOR EVENTS 2,075EVENT SUPPLIES 2,226TRAVEL 2,159MEALS 2,211TRIBAL INSURANCE 1,562CITY LICENSE FEES 188ACCOUNTING 1,000EXPENSES FOR TRIP 1,503PRESERVING CULTURAL SITE 1,500PATENT LOGO 1,000GAS FOR EVENTS 1,426SUPPLIES 842MISC EXPENSES 695UTILITIES 645FOOD REIMBURSEMENT 627SWEATSHIRTS PRINTING 250OFFICE SOFTWARE 163PARKING 25POSTAGE 60</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>