<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2021v4.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2022-11-15T20:07:28-05:00</ReturnTs>
    <TaxPeriodEndDt>2021-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>223447596</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>LEVINE JACOBS &amp; COMPANY LLC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>333 EISENHOWER PARKWAY</AddressLine1Txt>
        <CityNm>LIVINGSTON</CityNm>
        <StateAbbreviationCd>NJ</StateAbbreviationCd>
        <ZIPCd>07039</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2021-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>800596984</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>AMSTERDOG</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>AMST</BusinessNameControlTxt>
      <PhoneNum>9176898414</PhoneNum>
      <USAddress>
        <AddressLine1Txt>PO BOX 1062</AddressLine1Txt>
        <CityNm>NEW YORK</CityNm>
        <StateAbbreviationCd>NY</StateAbbreviationCd>
        <ZIPCd>10274</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>DEBORAH DIIORIO</PersonNm>
      <PersonTitleTxt>PRESIDENT</PersonTitleTxt>
      <PhoneNum>9176898414</PhoneNum>
      <SignatureDt>2022-11-15</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <SigningOfficerGrp>
      <PersonFullName>
        <PersonFirstNm>DEBORAH</PersonFirstNm>
        <PersonLastNm>DIIORIO</PersonLastNm>
      </PersonFullName>
      <SSN>XXX-XX-XXXX</SSN>
    </SigningOfficerGrp>
    <PreparerPersonGrp>
      <PreparerPersonNm>KIM FORRESTER</PreparerPersonNm>
      <PTIN>P00734023</PTIN>
      <PhoneNum>9739929400</PhoneNum>
      <PreparationDt>2022-11-15</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2021</TaxYr>
    <BuildTS>2022-09-23 18:48:47Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="3">
    <IRS990EZ documentId="RetDoc1" referenceDocumentId="RetDoc2">
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>WWW.AMSTERDOG.ORG</WebsiteAddressTxt>
      <Organization501c3Ind referenceDocumentId="RetDoc3">X</Organization501c3Ind>
      <TypeOfOrganizationTrustInd>X</TypeOfOrganizationTrustInd>
      <GrossReceiptsAmt>189391</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>189391</ContributionsGiftsGrantsEtcAmt>
      <TotalRevenueAmt>189391</TotalRevenueAmt>
      <FeesAndOtherPymtToIndCntrctAmt>6000</FeesAndOtherPymtToIndCntrctAmt>
      <OtherExpensesTotalAmt>179617</OtherExpensesTotalAmt>
      <TotalExpensesAmt>185617</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>3774</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>22101</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>25875</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIInd>X</InfoInScheduleOPartIIInd>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>26730</BOYAmt>
        <EOYAmt>33350</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <Form990TotalAssetsGrp>
        <BOYAmt>26730</BOYAmt>
        <EOYAmt>33350</EOYAmt>
      </Form990TotalAssetsGrp>
      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>4629</BOYAmt>
        <EOYAmt>7475</EOYAmt>
      </SumOfTotalLiabilitiesGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>22101</BOYAmt>
        <EOYAmt>25875</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <PrimaryExemptPurposeTxt>WE ARE DEDICATED TO THE PLIGHT OF ABANDONED ANIMALS, FINDING LOVING, RESPONSIBLE FOSTER AND ADOPTIVE HOMES, WITH SPECIAL FOCUS ON ABUSED ANIMALS, ALL OF WHOM FIND THEMSELVES AT-RISK IN CITY SHELTERS THROUGH NO FAULT OF THEIR OWN.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>TO HELP SAVE AT-RISK SHELTER ANIMALS BY PROVIDING NECESSITIES FOR PLACEMENT SUCH AS VETERIANARY CARE, REHABILITATIVE TRAINING, SUPPLIES, TRANSPORTATION AND OTHER RELATED EXPENSES.</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>167986</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>167986</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>DEBORAH DIIORIO</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>35.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>DARLENE O'SULLIVAN</PersonNm>
        <TitleTxt>VICE PRESIDE</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>25.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>MATT COOPER</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>30.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>PAMELA BABCOCK</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>30.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </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>NY</StatesWhereCopyOfReturnIsFldCd>
      <BooksInCareOfDetail>
        <PersonNm>DEBORAH DIIORIO</PersonNm>
        <USAddress>
          <AddressLine1Txt>C/O PO BOX 1062</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10274</ZIPCd>
        </USAddress>
        <PhoneNum>9176898414</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="RetDoc3">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>121573</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>223677</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>106582</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>189682</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>189391</CurrentTaxYearAmt>
        <TotalAmt>830905</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <GrossReceiptsNonUnrltBusGrp>
        <CurrentTaxYearMinus3YearsAmt>11377</CurrentTaxYearMinus3YearsAmt>
        <TotalAmt>11377</TotalAmt>
      </GrossReceiptsNonUnrltBusGrp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>121573</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>235054</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>106582</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>189682</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>189391</CurrentTaxYearAmt>
        <TotalAmt>842282</TotalAmt>
      </Total509Grp>
      <PublicSupportTotal509Amt>842282</PublicSupportTotal509Amt>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>121573</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>235054</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>106582</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>189682</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>189391</CurrentTaxYearAmt>
        <TotalAmt>842282</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>1.00000</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>1.00000</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.00000</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.00000</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleO documentId="RetDoc2">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 16</FormAndLineReferenceDesc>
        <ExplanationTxt>EXPENSES ADVERTISING 3,557 TELEPHONE 2,372 BANK FEES 2,788 OFFICE 2,914 VETERINARY AND GROOMING 74,081 TRAINING 22,040 BOARDING 21,489 TRANSPORTATION 34,260 SUPPLIES 16,116 TOTAL 179,617</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART II, LINE 26</FormAndLineReferenceDesc>
        <ExplanationTxt>CREDIT CARD PAYABLE 4,629 7,475</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART III</FormAndLineReferenceDesc>
        <ExplanationTxt>WE ARE DEDICATED TO THE PLIGHT OF ABANDONED ANIMALS, FINDING LOVING, RESPONSIBLE FOSTER AND ADOPTIVE HOMES, WITH SPECIAL FOCUS ON ABUSED ANIMALS, ALL OF WHOM FIND THEMSELVES AT-RISK IN CITY SHELTERS THROUGH NO FAULT OF THEIR OWN.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>
