﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.irs.gov/efile" returnVersion="2023v5.1">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-11-14T04:43:15-05:00</ReturnTs>
    <TaxPeriodEndDt>2024-06-30</TaxPeriodEndDt>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-07-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>364935871</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>SAINT LOUIS SUDBURY SCHOOL</BusinessNameLine1Txt>
      </BusinessName>
      <InCareOfNm>% Jennifer Lin</InCareOfNm>
      <BusinessNameControlTxt>SAIN</BusinessNameControlTxt>
      <ForeignPhoneNum>3142702488</ForeignPhoneNum>
      <USAddress>
        <AddressLine1Txt>3636 Texas Ave</AddressLine1Txt>
        <CityNm>SAINT LOUIS</CityNm>
        <StateAbbreviationCd>MO</StateAbbreviationCd>
        <ZIPCd>63118</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Thomas Osborn</PersonNm>
      <PersonTitleTxt>Treasurer Board of Directors</PersonTitleTxt>
      <SignatureDt>2024-11-14</SignatureDt>
      <DiscussWithPaidPreparerInd>false</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <TaxYr>2023</TaxYr>
    <BuildTS>2024-10-15 13:58:12Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="5">
    <IRS990EZ documentId="IRS990EZ" softwareId="23017649" softwareVersionNum="V2.0" documentName="IRS990EZ" referenceDocumentName="IRS990ScheduleO ReasonableCauseExplanation TransfersPersonalBenefitsContractsDeclaration BinaryAttachment">
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <Organization501c3Ind referenceDocumentId="IRS990ScheduleA1" referenceDocumentName="IRS990ScheduleA">X</Organization501c3Ind>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>118389</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>19894</ContributionsGiftsGrantsEtcAmt>
      <ProgramServiceRevenueAmt>97912</ProgramServiceRevenueAmt>
      <InvestmentIncomeAmt>583</InvestmentIncomeAmt>
      <GrossSalesOfInventoryAmt>0</GrossSalesOfInventoryAmt>
      <CostOfGoodsSoldAmt>0</CostOfGoodsSoldAmt>
      <GrossProfitLossSlsOfInvntryAmt>0</GrossProfitLossSlsOfInvntryAmt>
      <TotalRevenueAmt>118389</TotalRevenueAmt>
      <SalariesOtherCompEmplBnftAmt>22350</SalariesOtherCompEmplBnftAmt>
      <FeesAndOtherPymtToIndCntrctAmt>3960</FeesAndOtherPymtToIndCntrctAmt>
      <OccupancyRentUtltsAndMaintAmt>20700</OccupancyRentUtltsAndMaintAmt>
      <PrintingPublicationsPostageAmt>294</PrintingPublicationsPostageAmt>
      <OtherExpensesTotalAmt>17077</OtherExpensesTotalAmt>
      <TotalExpensesAmt>64381</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>54008</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>4918</NetAssetsOrFundBalancesBOYAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <NetAssetsOrFundBalancesEOYAmt>58926</NetAssetsOrFundBalancesEOYAmt>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>4918</BOYAmt>
        <EOYAmt>58926</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <Form990TotalAssetsGrp>
        <BOYAmt>4918</BOYAmt>
        <EOYAmt>58926</EOYAmt>
      </Form990TotalAssetsGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>4918</BOYAmt>
        <EOYAmt>58926</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <PrimaryExemptPurposeTxt>Saint Louis Sudbury School offers self-directed education for ages 5-18. Our mission: "We believe that children are born with the drive and skills to create a meaningful and successful life and learn best when given the opportunity to initiate and develop learning on their own. Within a self-governing democracy our school community protects respects and trusts the autonomy of young people."</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>Saint Louis Sudbury School offers fully Self-Directed Education in a self-governing democratic community for students age 5-18. Students have the freedom space and time to pursue their interests practice life skills such as responsibility for oneself and a shared community discover who they are connect with people of all ages and help run the school with staff and volunteers. Average enrollment was about 20 students and over half received a tuition discount based on economic need. The school runs year round.</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>0</GrantsAndAllocationsAmt>
      </ProgramSrvcAccomplishmentGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">Aurora Schmidt</PersonNm>
        <TitleTxt>Staff</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>35</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>17277</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">Jennifer Lin</PersonNm>
        <TitleTxt>Board President</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>40</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">Britni Wige</PersonNm>
        <TitleTxt>Board of Directors &amp; Tuition Clerk</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>4</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>2520</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">Kathryn Belcher</PersonNm>
        <TitleTxt>Secretary Board of Directors</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>6</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">Thomas Osborn</PersonNm>
        <TitleTxt>Treasurer Board of Directors</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>false</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>false</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd referenceDocumentName="IRS990ScheduleC">false</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd referenceDocumentName="IRS990ScheduleN BinaryAttachment">false</OrganizationDissolvedEtcInd>
      <Form1120PolFiledInd>false</Form1120PolFiledInd>
      <MadeLoansToFromOfficersInd>false</MadeLoansToFromOfficersInd>
      <EngagedInExcessBenefitTransInd referenceDocumentName="IRS990ScheduleL">false</EngagedInExcessBenefitTransInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <StatesWhereCopyOfReturnIsFldCd>MO</StatesWhereCopyOfReturnIsFldCd>
      <BooksInCareOfDetail>
        <PersonNm>Thomas Osborn</PersonNm>
        <USAddress>
          <AddressLine1Txt>3636 Texas Ave</AddressLine1Txt>
          <CityNm>Saint Louis</CityNm>
          <StateAbbreviationCd>MO</StateAbbreviationCd>
          <ZIPCd>63118</ZIPCd>
        </USAddress>
        <PhoneNum>3142702488</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <DonorAdvisedFndsInd>false</DonorAdvisedFndsInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <TanningServicesProvidedInd>false</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd>false</TransactionWithControlEntInd>
      <PoliticalCampaignActyInd referenceDocumentName="IRS990ScheduleC">false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd referenceDocumentName="IRS990ScheduleC">false</LobbyingActivitiesInd>
      <SchoolOperatingInd referenceDocumentName="IRS990ScheduleE">true</SchoolOperatingInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>false</TrnsfrExmptNonChrtblRltdOrgInd>
      <PartVIOfCompOfHghstPdEmplTxt>NONE</PartVIOfCompOfHghstPdEmplTxt>
      <PartVIHghstPdCntrctProfSrvcTxt>NONE</PartVIHghstPdCntrctProfSrvcTxt>
      <FiledScheduleAInd>true</FiledScheduleAInd>
    </IRS990EZ>
    <IRS990ScheduleA documentId="IRS990ScheduleA1" documentName="IRS990ScheduleA">
      <SchoolInd>X</SchoolInd>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="IRS990ScheduleB1" documentName="IRS990ScheduleB">
      <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>
    <IRS990ScheduleE documentId="IRS990ScheduleE1" documentName="IRS990ScheduleE">
      <NondiscriminatoryPolicyStmtInd>true</NondiscriminatoryPolicyStmtInd>
      <PolicyStmtInBrochuresEtcInd>true</PolicyStmtInBrochuresEtcInd>
      <PlcyPblczdViaBroadcastMediaInd>true</PlcyPblczdViaBroadcastMediaInd>
      <MaintainRacialCompRecsInd>true</MaintainRacialCompRecsInd>
      <MaintainScholarshipsRecsInd>true</MaintainScholarshipsRecsInd>
      <MaintainCpyOfBrochuresEtcInd>true</MaintainCpyOfBrochuresEtcInd>
      <MaintainCpyOfAllSolInd>true</MaintainCpyOfAllSolInd>
      <DiscriminateRaceStdntsRghtsInd>false</DiscriminateRaceStdntsRghtsInd>
      <DiscriminateRaceAdmissPlcyInd>false</DiscriminateRaceAdmissPlcyInd>
      <DiscriminateRaceEmplmFcultyInd>false</DiscriminateRaceEmplmFcultyInd>
      <DiscriminateRaceSchsInd>false</DiscriminateRaceSchsInd>
      <DiscriminateRaceEducPlcyInd>false</DiscriminateRaceEducPlcyInd>
      <DiscriminateRaceUseOfFcltsInd>false</DiscriminateRaceUseOfFcltsInd>
      <DiscriminateRaceAthltProgInd>false</DiscriminateRaceAthltProgInd>
      <DiscriminateRaceOtherActyInd>false</DiscriminateRaceOtherActyInd>
      <GovernmentFinancialAidRcvdInd>false</GovernmentFinancialAidRcvdInd>
      <GovernmentFinancialAidRvkdInd>false</GovernmentFinancialAidRvkdInd>
      <ComplianceWithRevProc7550Ind>true</ComplianceWithRevProc7550Ind>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part 1, line 3</FormAndLineReferenceDesc>
        <ExplanationTxt>Saint Louis Sudbury School admits students of any gender, gender expression, sexual orientation, race, color, religion, creed, national and ethnic origin to all the rights, privileges, programs, and activities generally accorded or made available to students at the school. Saint Louis Sudbury School does not discriminate on the basis of gender, gender expression, sexual orientation, race, color, national and ethnic origin, religion, or creed in administration of its educational policies...</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleE>
    <IRS990ScheduleO documentId="IRS990ScheduleO1" documentName="IRS990ScheduleO">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>| Other Expenses:, Amount:| Student Educational Activities, $3494.00| Tuition Refunds, $1370.00| Marketing, $1161.00| Insurance, $8608.00| Staff professional development, $1140.00| Administration costs, $1304.00|</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>