﻿<?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="2024v5.5">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2026-02-20T10:36:21-06:00</ReturnTs>
    <TaxPeriodEndDt>2025-07-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>310800053</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>CLARK SCHAEFER HACKETT &amp; CO</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>1 EAST 4TH STREET</AddressLine1Txt>
        <CityNm>CINCINNATI</CityNm>
        <StateAbbreviationCd>OH</StateAbbreviationCd>
        <ZIPCd>45202</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2024-08-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>311590999</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>CLARK MONTESSORI SCHOOL FOUNDATION INC</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>CLAR</BusinessNameControlTxt>
      <PhoneNum>5133637100</PhoneNum>
      <USAddress>
        <AddressLine1Txt>3030 ERIE AVE</AddressLine1Txt>
        <CityNm>CINCINNATI</CityNm>
        <StateAbbreviationCd>OH</StateAbbreviationCd>
        <ZIPCd>45208</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>ANDI SAYLOR</PersonNm>
      <PersonTitleTxt>TREASURER</PersonTitleTxt>
      <PhoneNum>5133637100</PhoneNum>
      <SignatureDt>2026-02-19</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>0</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>ESTHER DANIEL</PreparerPersonNm>
      <PTIN>P01285343</PTIN>
      <PhoneNum>5132413111</PhoneNum>
      <PreparationDt>2026-02-10</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2024</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="4">
    <IRS990EZ documentId="RetDoc1234200001" referenceDocumentId="RetDoc1051800001 RetDoc2278000001">
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>HTTPS://CLARKMONTESSORIFOUNDATION.ORG/</WebsiteAddressTxt>
      <Organization501c3Ind referenceDocumentId="RetDoc1039100001">X</Organization501c3Ind>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>86932</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>14567</ContributionsGiftsGrantsEtcAmt>
      <ProgramServiceRevenueAmt>72365</ProgramServiceRevenueAmt>
      <TotalRevenueAmt>86932</TotalRevenueAmt>
      <GrantsAndSimilarAmountsPaidAmt>11100</GrantsAndSimilarAmountsPaidAmt>
      <FeesAndOtherPymtToIndCntrctAmt>400</FeesAndOtherPymtToIndCntrctAmt>
      <OtherExpensesTotalAmt>72553</OtherExpensesTotalAmt>
      <TotalExpensesAmt>84053</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>2879</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>265684</NetAssetsOrFundBalancesBOYAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <NetAssetsOrFundBalancesEOYAmt>268563</NetAssetsOrFundBalancesEOYAmt>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>265684</BOYAmt>
        <EOYAmt>268563</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <Form990TotalAssetsGrp>
        <BOYAmt>265684</BOYAmt>
        <EOYAmt>268563</EOYAmt>
      </Form990TotalAssetsGrp>
      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </SumOfTotalLiabilitiesGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>265684</BOYAmt>
        <EOYAmt>268563</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <PrimaryExemptPurposeTxt>TO PROVIDE SUPPORT FOR THE CLARK MONTESSORI SCHOOL, INCLUDING PROMOTION OF THE EDUCATION OF ITS STUDENTS, STUDENT ACTIVITIES AND ATHLETIC OPPORTUNITIES.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>DURING THE YEAR, THE FOUNDATION SUPPORTED AND PROMOTED STUDENT ACADEMIC PERFORMANCE AND ACTIVITIES. THESE INCLUDE EXTRACURRICULAR ACTIVITIES AND CLUBS. IT ALSO CONTRIBUTES TO OTHER ADVANCEMENTS FOR CLARK MONTESSORI STUDENTS WITH ITEMS SUCH AS EQUIPMENT, TEXTBOOKS, ART, SUPPLIES, SCIENCE MATERIALS, MUSIC, YEARBOOK AND PROM.</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>11100</GrantsAndAllocationsAmt>
        <ProgramServiceExpensesAmt>74570</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>74570</TotalProgramServiceExpensesAmt>
      <InfoInScheduleOPartIVInd>X</InfoInScheduleOPartIVInd>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>TRACEY BRESNAHAN</PersonNm>
        <TitleTxt>BOARD MEMEBER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>COREY DYKE</PersonNm>
        <TitleTxt>BOARD MEMEBER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>ERIC HIGGINS</PersonNm>
        <TitleTxt>BOARD MEMEBER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>STACEY HUXEL</PersonNm>
        <TitleTxt>BOARD MEMEBER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>MICHELLE LIGHTFOOT</PersonNm>
        <TitleTxt>BOARD MEMEBER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>DANIELLE NATH</PersonNm>
        <TitleTxt>BOARD MEMEBER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>SARAH KLAYER</PersonNm>
        <TitleTxt>BOARD MEMEBER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>KELLY CRANTFORD</PersonNm>
        <TitleTxt>BOARD MEMEBER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>ANGELA BUSTAMANTE</PersonNm>
        <TitleTxt>BOARD MEMEBER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>SKYLAR COAKLEY</PersonNm>
        <TitleTxt>BOARD MEMEBER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>HEATHER GERKER</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>5.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>ANDI SAYLOR</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>5.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</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>
      <BooksInCareOfDetail>
        <PersonNm>ANDI SAYLOR</PersonNm>
        <USAddress>
          <AddressLine1Txt>3030 ERIE AVE</AddressLine1Txt>
          <CityNm>CINCINNATI</CityNm>
          <StateAbbreviationCd>OH</StateAbbreviationCd>
          <ZIPCd>45208</ZIPCd>
        </USAddress>
        <PhoneNum>5133637100</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>98216</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>38463</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>24716</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>15807</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>14567</CurrentTaxYearAmt>
        <TotalAmt>191769</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>98216</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>38463</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>24716</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>15807</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>14567</CurrentTaxYearAmt>
        <TotalAmt>191769</TotalAmt>
      </TotalCalendarYear170Grp>
      <PublicSupportTotal170Amt>191769</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>1218</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>673</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>739</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>5196</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>0</CurrentTaxYearAmt>
        <TotalAmt>7826</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <TotalSupportAmt>199595</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>326026</GrossReceiptsRltdActivitiesAmt>
      <PublicSupportCY170Pct>0.96080</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.96460</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleO documentId="RetDoc1051800001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 10 - GRANTS AND SIMILAR AMOUNTS PAID</FormAndLineReferenceDesc>
        <ExplanationTxt>ACTIVITY CLASSIFICATION: EDUCATIONAL. GRANTEE NAME: CLARK MONTESSORI HIGH SCHOOL. GRANTEE ADDRESS: 3030 ERIE AVE CINCINNATI, OH 45208. GRANTEE RELATIONSHIP: NONE. AMOUNT GIVEN: 11,100.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 16 - OTHER EXPENSES</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: OFFICE EXPENSE. AMOUNT: 5,354. DESCRIPTION: CONTRACTORS FEES. AMOUNT: 2,600. DESCRIPTION: EQUIPMENT RENTAL AND MAINTENANCE. AMOUNT: 1,030. DESCRIPTION: OTHER PROGRAM EXPENSES. AMOUNT: 63,469. DESCRIPTION: OHIO ANNUAL FILING. AMOUNT: 100. TOTAL TO FORM 990-EZ, LINE 16: 72,553.</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>