﻿<?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="2024v5.2">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2025-09-09T12:46:12-05:00</ReturnTs>
    <TaxPeriodEndDt>2024-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>232846715</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>STAMBAUGH NESS INC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>220 ST CHARLES WAY STE 150</AddressLine1Txt>
        <CityNm>YORK</CityNm>
        <StateAbbreviationCd>PA</StateAbbreviationCd>
        <ZIPCd>174024663</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2024-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>201947169</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>INTERNATIONAL WAGR SYNDROME ASSOCIATION</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>INTE</BusinessNameControlTxt>
      <PhoneNum>7179687703</PhoneNum>
      <USAddress>
        <AddressLine1Txt>PO BOX 2875</AddressLine1Txt>
        <CityNm>MONTGOMERY VILLAGE</CityNm>
        <StateAbbreviationCd>MD</StateAbbreviationCd>
        <ZIPCd>20886</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>NIKKI HOFFMAN</PersonNm>
      <PersonTitleTxt>TREASURER</PersonTitleTxt>
      <PhoneNum>7179687703</PhoneNum>
      <SignatureDt>2025-08-26</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>0</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>NIKKI L BARDIN CPA</PreparerPersonNm>
      <PTIN>P01256649</PTIN>
      <PhoneNum>7177576999</PhoneNum>
      <PreparationDt>2025-08-26</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2024</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="5">
    <IRS990EZ documentId="RetDoc1234200001" referenceDocumentId="RetDoc1051800001 RetDoc2278000001">
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <WebsiteAddressTxt>WWW.WAGR.ORG</WebsiteAddressTxt>
      <Organization501c3Ind referenceDocumentId="RetDoc1039100001">X</Organization501c3Ind>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>70419</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>69789</ContributionsGiftsGrantsEtcAmt>
      <InvestmentIncomeAmt>5</InvestmentIncomeAmt>
      <FundraisingGrossIncomeAmt>100</FundraisingGrossIncomeAmt>
      <SpecialEventsDirectExpensesAmt>59</SpecialEventsDirectExpensesAmt>
      <SpecialEventsNetIncomeLossAmt>41</SpecialEventsNetIncomeLossAmt>
      <OtherRevenueTotalAmt>525</OtherRevenueTotalAmt>
      <TotalRevenueAmt>70360</TotalRevenueAmt>
      <SalariesOtherCompEmplBnftAmt>24670</SalariesOtherCompEmplBnftAmt>
      <FeesAndOtherPymtToIndCntrctAmt>3680</FeesAndOtherPymtToIndCntrctAmt>
      <OtherExpensesTotalAmt>48768</OtherExpensesTotalAmt>
      <TotalExpensesAmt>77118</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>-6758</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>83579</NetAssetsOrFundBalancesBOYAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <NetAssetsOrFundBalancesEOYAmt>76821</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIInd>X</InfoInScheduleOPartIIInd>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>81058</BOYAmt>
        <EOYAmt>74206</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <OtherAssetsTotalDetail>
        <BOYAmt>3499</BOYAmt>
        <EOYAmt>3499</EOYAmt>
      </OtherAssetsTotalDetail>
      <Form990TotalAssetsGrp>
        <BOYAmt>84557</BOYAmt>
        <EOYAmt>77705</EOYAmt>
      </Form990TotalAssetsGrp>
      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>978</BOYAmt>
        <EOYAmt>884</EOYAmt>
      </SumOfTotalLiabilitiesGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>83579</BOYAmt>
        <EOYAmt>76821</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <PrimaryExemptPurposeTxt>THE INTERNATIONAL WAGR SYNDROME ASSOCIATION (IWSA) IS A PATIENT ADVOCACY ORGANIZATION WITH APPROXIMATELY 225 MEMBER FAMILIES, ENGAGED VIA A VARIETY OF SUPPORT AND INFORMATION-SHARING ACTIVITIES. THE MISSION OF THE IWSA IS TO PROMOTE AWARENESS, STIMULATE RESEARCH, AND SUPPORT FAMILIES AFFECTED BY WAGR SYNDROME. THE IWSA BELIEVES IN PLACING PATIENTS AND FAMILIES IN THE FOREFRONT OF ALL ACTIVITIES OF THE ORGANIZATION. THE IWSA HOSTS GATHERINGS OF FAMILIES TO SHARE GENERAL INFORMATION ABOUT WAGR SYNDROME AND TO PROVIDE EMOTIONAL SUPPORT. BOARD MEMBERS AND OTHER LEADERS OF THE ORGANIZATION ATTEND CONFERENCES PERTAINING TO RARE DISEASE RESEARCH AND PATIENT ADVOCACY.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>TO PROMOTE AWARENESS, STIMULATE RESEARCH AND SUPPORT FAMILIES AFFECTED BY WAGR SYNDROME.</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>0</GrantsAndAllocationsAmt>
        <ProgramServiceExpensesAmt>58667</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>58667</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>JOHN MORRIS</PersonNm>
        <TitleTxt>CHAIRMAN</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>5.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>KELLY TROUT</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>NIKKI HOFFMAN</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>LINDA VAN DE SANDE</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>ANDREA HARRIS</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>AARON CALHOUN</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>SHARI KRANTZ</PersonNm>
        <TitleTxt>EXECUTIVE DIRECTOR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>17.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>21470</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <InfoInScheduleOPartVInd>X</InfoInScheduleOPartVInd>
      <ActivitiesNotPreviouslyRptInd>0</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>0</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>0</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd>0</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>0</OrganizationDissolvedEtcInd>
      <DirectIndirectPltclExpendAmt>0</DirectIndirectPltclExpendAmt>
      <MadeLoansToFromOfficersInd>0</MadeLoansToFromOfficersInd>
      <TaxImposedUnderIRC4911Amt>0</TaxImposedUnderIRC4911Amt>
      <TaxImposedUnderIRC4912Amt>0</TaxImposedUnderIRC4912Amt>
      <TaxImposedUnderIRC4955Amt>0</TaxImposedUnderIRC4955Amt>
      <EngagedInExcessBenefitTransInd>0</EngagedInExcessBenefitTransInd>
      <TaxImposedOnOrganizationMgrAmt>0</TaxImposedOnOrganizationMgrAmt>
      <TaxReimbursedByOrganizationAmt>0</TaxReimbursedByOrganizationAmt>
      <ProhibitedTaxShelterTransInd>0</ProhibitedTaxShelterTransInd>
      <StatesWhereCopyOfReturnIsFldCd>PA</StatesWhereCopyOfReturnIsFldCd>
      <StatesWhereCopyOfReturnIsFldCd>VA</StatesWhereCopyOfReturnIsFldCd>
      <StatesWhereCopyOfReturnIsFldCd>SC</StatesWhereCopyOfReturnIsFldCd>
      <BooksInCareOfDetail>
        <PersonNm>NIKKI HOFFMAN</PersonNm>
        <USAddress>
          <AddressLine1Txt>PO BOX 2875</AddressLine1Txt>
          <CityNm>MONTGOMERY VILLAGE</CityNm>
          <StateAbbreviationCd>MD</StateAbbreviationCd>
          <ZIPCd>20886</ZIPCd>
        </USAddress>
        <PhoneNum>7179687703</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
      <ForeignOfficeInd>0</ForeignOfficeInd>
      <DonorAdvisedFndsInd>0</DonorAdvisedFndsInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <TanningServicesProvidedInd>0</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <PoliticalCampaignActyInd>0</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>0</LobbyingActivitiesInd>
      <SchoolOperatingInd>0</SchoolOperatingInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>0</TrnsfrExmptNonChrtblRltdOrgInd>
      <PartVIOfCompOfHghstPdEmplTxt>NONE</PartVIOfCompOfHghstPdEmplTxt>
      <PartVIHghstPdCntrctProfSrvcTxt>NONE</PartVIHghstPdCntrctProfSrvcTxt>
      <FiledScheduleAInd>1</FiledScheduleAInd>
    </IRS990EZ>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>57273</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>74018</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>53769</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>63256</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>69789</CurrentTaxYearAmt>
        <TotalAmt>318105</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>57273</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>74018</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>53769</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>63256</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>69789</CurrentTaxYearAmt>
        <TotalAmt>318105</TotalAmt>
      </TotalCalendarYear170Grp>
      <SubstantialContributorsTotAmt>36780</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>281325</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>17</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>66</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>48</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>8</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>5</CurrentTaxYearAmt>
        <TotalAmt>144</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <OtherIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>6109</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>16514</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1535</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1292</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>525</CurrentTaxYearAmt>
        <TotalAmt>25975</TotalAmt>
      </OtherIncome170Grp>
      <TotalSupportAmt>344224</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>8852</GrossReceiptsRltdActivitiesAmt>
      <PublicSupportCY170Pct>0.81730</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.82620</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
    </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>
    <IRS990ScheduleO documentId="RetDoc1051800001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 4 - OTHER INVESTMENT INCOME</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: INTEREST INCOME. AMOUNT: 5.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 8 - OTHER REVENUE</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: OTHER INCOME. AMOUNT: 525.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 16 - OTHER EXPENSES</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: ADVERTISING. AMOUNT: 639. DESCRIPTION: COMMISSIONS AND FEES. AMOUNT: 2,331. DESCRIPTION: CONFERENCES AND MEETINGS. AMOUNT: 32,523. DESCRIPTION: DUES AND SUBSCRIPTIONS. AMOUNT: 260. DESCRIPTION: FAMILY SUPPORT EXPENSES. AMOUNT: 720. DESCRIPTION: INSURANCE. AMOUNT: 1,866. DESCRIPTION: OFFICE EXPENSES. AMOUNT: 9,182. DESCRIPTION: ORGANIZATIONAL EXPENSES. AMOUNT: 175. DESCRIPTION: TRAVEL AND MEALS. AMOUNT: 1,072. TOTAL TO FORM 990-EZ, LINE 16: 48,768.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART II, LINE 24 - OTHER ASSETS</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: ERTC RECEIVABLE. BEG. OF YEAR AMOUNT: 3,499. END OF YEAR AMOUNT: 3,499.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART II, LINE 26 - OTHER LIABILITIES</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: CREDIT CARD PAYABLE. BEG. OF YEAR AMOUNT: 978. END OF YEAR AMOUNT: 884.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <TransferPrsnlBnftContractsDecl documentId="RetDoc2278000001">
      <DeclarationDesc>THE ORGANIZATION DID NOT, DURING THE YEAR, RECEIVE ANY FUNDS, DIRECTLY,OR INDIRECTLY, TO PAY PREMIUMS ON A PERSONAL BENEFIT CONTRACT.THE ORGANIZATION, DID NOT, DURING THE YEAR, PAY ANY PREMIUMS, DIRECTLY,OR INDIRECTLY, ON A PERSONAL BENEFIT CONTRACT.</DeclarationDesc>
    </TransferPrsnlBnftContractsDecl>
  </ReturnData>
</Return>