﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2024v5.1" xsi:schemaLocation="http://www.irs.gov/efile">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2025-05-29T05:55:11-07:00</ReturnTs>
    <TaxPeriodEndDt>2024-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>371321363</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>TROY A WASHKO CPA PC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>1924 E SANGAMON AVE</AddressLine1Txt>
        <CityNm>SPRINGFIELD</CityNm>
        <StateAbbreviationCd>IL</StateAbbreviationCd>
        <ZIPCd>62702</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2024-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>364203100</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>ILLINOIS ASSOCIATION OF PUBLIC PROCUREMENT OFFICIALS</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>ILLI</BusinessNameControlTxt>
      <PhoneNum>2175582156</PhoneNum>
      <USAddress>
        <AddressLine1Txt>PO BOX 231</AddressLine1Txt>
        <CityNm>SPRINGFIELD</CityNm>
        <StateAbbreviationCd>IL</StateAbbreviationCd>
        <ZIPCd>62705</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>ANDY HENNIG</PersonNm>
      <PersonTitleTxt>TREASURER</PersonTitleTxt>
      <PhoneNum>2175582156</PhoneNum>
      <SignatureDt>2025-05-29</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>true</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>TROY WASHKO CPA</PreparerPersonNm>
      <PTIN>P00981113</PTIN>
      <PhoneNum>2175223300</PhoneNum>
      <PreparationDt>2025-05-29</PreparationDt>
      <SelfEmployedInd>X</SelfEmployedInd>
    </PreparerPersonGrp>
    <TaxYr>2024</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="3">
    <IRS990EZ documentId="IRS990EZ-01" referenceDocumentId="IRS990ScheduleO-01">
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>WWW.IAPPO.ORG</WebsiteAddressTxt>
      <Organization501c3Ind referenceDocumentId="IRS990ScheduleA-01" referenceDocumentName="IRS990ScheduleA">X</Organization501c3Ind>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>104134</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>0</ContributionsGiftsGrantsEtcAmt>
      <ProgramServiceRevenueAmt>27838</ProgramServiceRevenueAmt>
      <MembershipDuesAmt>21906</MembershipDuesAmt>
      <InvestmentIncomeAmt>3106</InvestmentIncomeAmt>
      <CostOrOtherBasisExpenseSaleAmt>0</CostOrOtherBasisExpenseSaleAmt>
      <GainOrLossFromSaleOfAssetsAmt>0</GainOrLossFromSaleOfAssetsAmt>
      <FundraisingGrossIncomeAmt>1878</FundraisingGrossIncomeAmt>
      <SpecialEventsDirectExpensesAmt>0</SpecialEventsDirectExpensesAmt>
      <SpecialEventsNetIncomeLossAmt>1878</SpecialEventsNetIncomeLossAmt>
      <CostOfGoodsSoldAmt>0</CostOfGoodsSoldAmt>
      <GrossProfitLossSlsOfInvntryAmt>0</GrossProfitLossSlsOfInvntryAmt>
      <OtherRevenueTotalAmt>49406</OtherRevenueTotalAmt>
      <TotalRevenueAmt>104134</TotalRevenueAmt>
      <FeesAndOtherPymtToIndCntrctAmt>8573</FeesAndOtherPymtToIndCntrctAmt>
      <PrintingPublicationsPostageAmt>3614</PrintingPublicationsPostageAmt>
      <OtherExpensesTotalAmt>61217</OtherExpensesTotalAmt>
      <TotalExpensesAmt>73404</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>30730</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>137795</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>168525</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIInd>X</InfoInScheduleOPartIIInd>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>76819</BOYAmt>
        <EOYAmt>94453</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <OtherAssetsTotalDetail>
        <BOYAmt>60976</BOYAmt>
        <EOYAmt>74072</EOYAmt>
      </OtherAssetsTotalDetail>
      <Form990TotalAssetsGrp>
        <BOYAmt>137795</BOYAmt>
        <EOYAmt>168525</EOYAmt>
      </Form990TotalAssetsGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>137795</BOYAmt>
        <EOYAmt>168525</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <PrimaryExemptPurposeTxt>EDUCATION FOR GOVERNMENTAL PURCHASING AGENTS THROUGH TRAINING, INFORMATION SHARING, CERTIFICATION AND PROMOTING PROFESSIONALISM.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>CHAPTER CONFERENCES - TRAINING TO PROMOTE KNOWLEDGE AND ADVANCES IN PURCHASING TECHNIQUES</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>0</GrantsAndAllocationsAmt>
        <ProgramServiceExpensesAmt>47475</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>NIGP (NATIONAL AFFILIATED ORG) SEMINARS TO PROVIDE EDUCATIONFOR GOVERNMENTAL PURCHASING AGENTS</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>0</GrantsAndAllocationsAmt>
        <ProgramServiceExpensesAmt>6224</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>53699</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>ARTHUR MOORE</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>10.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>KATHERINE TOPLE</PersonNm>
        <TitleTxt>VICE PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>10.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>KASSANDRA WILKIN</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>10.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>ANDY HENNIG</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>10.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <InfoInScheduleOPartVInd>X</InfoInScheduleOPartVInd>
      <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>false</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>false</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>false</OrganizationDissolvedEtcInd>
      <Form1120PolFiledInd>false</Form1120PolFiledInd>
      <MadeLoansToFromOfficersInd>false</MadeLoansToFromOfficersInd>
      <InitiationFeesAndCapContriAmt>0</InitiationFeesAndCapContriAmt>
      <GrossReceiptsForPublicUseAmt>0</GrossReceiptsForPublicUseAmt>
      <EngagedInExcessBenefitTransInd>false</EngagedInExcessBenefitTransInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <StatesWhereCopyOfReturnIsFldCd>IL</StatesWhereCopyOfReturnIsFldCd>
      <BooksInCareOfDetail>
        <PersonNm>ANDY HENNIG</PersonNm>
        <USAddress>
          <AddressLine1Txt>1729 E GRIFFITHS AVE</AddressLine1Txt>
          <CityNm>SPRINGFIELD</CityNm>
          <StateAbbreviationCd>IL</StateAbbreviationCd>
          <ZIPCd>62702</ZIPCd>
        </USAddress>
        <PhoneNum>2174949036</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="IRS990ScheduleA-01" softwareId="24020153">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <OtherSupportSumAmt>0</OtherSupportSumAmt>
      <PublicSupportCY170Pct>0</PublicSupportCY170Pct>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>10609</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>4066</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>19803</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>18233</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>21906</CurrentTaxYearAmt>
        <TotalAmt>74617</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus4YearsAmt>16330</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>5997</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>40403</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>23959</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>27956</CurrentTaxYearAmt>
        <TotalAmt>114645</TotalAmt>
      </GrossReceiptsAdmissionsGrp>
      <GrossReceiptsNonUnrltBusGrp>
        <CurrentTaxYearMinus1YearAmt>15627</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>49288</CurrentTaxYearAmt>
        <TotalAmt>64915</TotalAmt>
      </GrossReceiptsNonUnrltBusGrp>
      <TaxRevLeviedOrgnztnlBnft509Grp>
        <TotalAmt>0</TotalAmt>
      </TaxRevLeviedOrgnztnlBnft509Grp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>26939</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>10063</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>60206</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>57819</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>99150</CurrentTaxYearAmt>
        <TotalAmt>254177</TotalAmt>
      </Total509Grp>
      <AmountsRcvdDsqlfyPersonGrp>
        <TotalAmt>0</TotalAmt>
      </AmountsRcvdDsqlfyPersonGrp>
      <SubstantialContributorsAmtGrp>
        <TotalAmt>0</TotalAmt>
      </SubstantialContributorsAmtGrp>
      <SubstAndDsqlfyPrsnsTotGrp>
        <TotalAmt>0</TotalAmt>
      </SubstAndDsqlfyPrsnsTotGrp>
      <PublicSupportTotal509Amt>254177</PublicSupportTotal509Amt>
      <GrossInvestmentIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>6</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>6</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>6</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>991</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>3106</CurrentTaxYearAmt>
        <TotalAmt>4115</TotalAmt>
      </GrossInvestmentIncome509Grp>
      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearMinus4YearsAmt>6</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>6</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>6</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>991</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>3106</CurrentTaxYearAmt>
        <TotalAmt>4115</TotalAmt>
      </InvestmentIncomeAndUBTIGrp>
      <TotalSupportCalendarYearGrp>
        <TotalAmt>258292</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>0.98410</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.99510</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.01590</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.00490</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleO documentId="IRS990ScheduleO-01" softwareId="24020153">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt V, PBC</FormAndLineReferenceDesc>
        <ExplanationTxt>A) DID THE ORGANIZATION RECEIVE ANY FUNDS, DIRECTLY OR INDIRECTLY, TO PAY PREMIUMS ON A PERSONAL BENEFIT CONTRACT? NO</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt V, PBC</FormAndLineReferenceDesc>
        <ExplanationTxt>B) DID THE ORGANIZATION PAY PREMIUMS, DIRECTLY OR INDIRECTLY, ON A PERSONAL BENEFIT CONTRACT? NO</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990EZ, Part I, Line 8</FormAndLineReferenceDesc>
        <ExplanationTxt>REIMBURSEMENTS FOR EXPENSES 118.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990EZ, Part I, Line 8</FormAndLineReferenceDesc>
        <ExplanationTxt>VENDOR EXPO 49288.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990EZ, Part I, Line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>CONFERENCE EXPENSES 47475.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990EZ, Part I, Line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>NIGP FORUM EXPENSES 6224.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990EZ, Part I, Line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>COMPANY/ORGANIZATION FEES 688.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990EZ, Part I, Line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>BANK FEES 38.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990EZ, Part I, Line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>SCHOLARSHIPS/AWARDS/PLAQUES 176.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990EZ, Part I, Line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>REFUNDS 0.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990EZ, Part I, Line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>WEBSITE DEVELOPMENT/MAINTENANCE 160.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990EZ, Part I, Line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>FUNCTIONS 375.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990EZ, Part I, Line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>MARKETING 0.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990EZ, Part I, Line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>OFFICE SUPPLIES 558.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990EZ, Part I, Line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>PRINTING 1406.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990EZ, Part I, Line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>WEBINARS 1000.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990EZ, Part I, Line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>TRAVEL FOR SPEAKERS 3117.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990EZ, Part II, Line 24</FormAndLineReferenceDesc>
        <ExplanationTxt>COD 60976. 74072.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990EZ, Part II, Line 26</FormAndLineReferenceDesc>
        <ExplanationTxt>OUTSTANDING CHECKS</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>