﻿<?xml version="1.0" encoding="utf-8"?>
<Return returnVersion="2023v5.0" xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-11-04T19:34:01-07:00</ReturnTs>
    <TaxPeriodEndDt>2024-06-30</TaxPeriodEndDt>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-07-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>752411946</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>LAMAR HIGH SCHOOL INSTRUMENTAL BOOSTER CLUB</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>LAMA</BusinessNameControlTxt>
      <PhoneNum>6828678300</PhoneNum>
      <USAddress>
        <AddressLine1Txt>1400 W Lamar Blvd</AddressLine1Txt>
        <CityNm>Arlington</CityNm>
        <StateAbbreviationCd>TX</StateAbbreviationCd>
        <ZIPCd>76012</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Bryan Stein</PersonNm>
      <PersonTitleTxt>LIBC President</PersonTitleTxt>
      <PhoneNum>8175975933</PhoneNum>
      <SignatureDt>2024-11-04</SignatureDt>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>1</IRSResponsiblePrtyInfoCurrInd>
    <TaxYr>2023</TaxYr>
    <BuildTS>2024-10-15 13:58:12Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="4">
    <IRS990EZ documentId="R000001" referenceDocumentId="R000004" softwareId="23018249" softwareVersionNum="v1.00">
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>Lamarmusic.org</WebsiteAddressTxt>
      <Organization501c3Ind referenceDocumentId="R000002">X</Organization501c3Ind>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>65232</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>11161</ContributionsGiftsGrantsEtcAmt>
      <ProgramServiceRevenueAmt>11253</ProgramServiceRevenueAmt>
      <MembershipDuesAmt>3637</MembershipDuesAmt>
      <InvestmentIncomeAmt>0</InvestmentIncomeAmt>
      <SaleOfAssetsGrossAmt>0</SaleOfAssetsGrossAmt>
      <CostOrOtherBasisExpenseSaleAmt>0</CostOrOtherBasisExpenseSaleAmt>
      <GainOrLossFromSaleOfAssetsAmt>0</GainOrLossFromSaleOfAssetsAmt>
      <GamingGrossIncomeAmt referenceDocumentId="R000003">0</GamingGrossIncomeAmt>
      <FundraisingGrossIncomeAmt fndrsngEventContriPrevRptAmt="0" referenceDocumentId="R000003">34493</FundraisingGrossIncomeAmt>
      <SpecialEventsDirectExpensesAmt>1524</SpecialEventsDirectExpensesAmt>
      <SpecialEventsNetIncomeLossAmt>32969</SpecialEventsNetIncomeLossAmt>
      <GrossSalesOfInventoryAmt>4285</GrossSalesOfInventoryAmt>
      <CostOfGoodsSoldAmt>5257</CostOfGoodsSoldAmt>
      <GrossProfitLossSlsOfInvntryAmt>-972</GrossProfitLossSlsOfInvntryAmt>
      <OtherRevenueTotalAmt>403</OtherRevenueTotalAmt>
      <TotalRevenueAmt>58451</TotalRevenueAmt>
      <GrantsAndSimilarAmountsPaidAmt>0</GrantsAndSimilarAmountsPaidAmt>
      <BenefitsPaidToOrForMembersAmt>0</BenefitsPaidToOrForMembersAmt>
      <SalariesOtherCompEmplBnftAmt>0</SalariesOtherCompEmplBnftAmt>
      <FeesAndOtherPymtToIndCntrctAmt>0</FeesAndOtherPymtToIndCntrctAmt>
      <OccupancyRentUtltsAndMaintAmt>0</OccupancyRentUtltsAndMaintAmt>
      <PrintingPublicationsPostageAmt>1671</PrintingPublicationsPostageAmt>
      <OtherExpensesTotalAmt>38278</OtherExpensesTotalAmt>
      <TotalExpensesAmt>39949</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>18502</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>31482</NetAssetsOrFundBalancesBOYAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <NetAssetsOrFundBalancesEOYAmt>49984</NetAssetsOrFundBalancesEOYAmt>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>31482</BOYAmt>
        <EOYAmt>49984</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <LandAndBuildingsGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </LandAndBuildingsGrp>
      <OtherAssetsTotalDetail>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </OtherAssetsTotalDetail>
      <Form990TotalAssetsGrp>
        <BOYAmt>31482</BOYAmt>
        <EOYAmt>49984</EOYAmt>
      </Form990TotalAssetsGrp>
      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </SumOfTotalLiabilitiesGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>31482</BOYAmt>
        <EOYAmt>49984</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <PrimaryExemptPurposeTxt>Provide support for the Arlington Independent School District specifically for the Lamar High School Instrumental music program of Band and Orchestra. Support provided through attendance, helping students and directors, and providing monetary support.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>Form 990-EZ, Par III, Line 28 - First Accomplishment: Provide program and logistical support to the Band and Orchestra through payment of travel expenses, some meals, costumes, decorations, and other miscellaneous expenses in support of the music program. Activity benefits approximately 300 students.</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>0</GrantsAndAllocationsAmt>
        <ProgramServiceExpensesAmt>15039</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>Form 990-EZ, Par III, Line 29 - Second Accomplishment: Provide instructional support through private lessons and educational specialists for the individual and group performance improvement. Support includes private lesson teachers, group instructors, and leadership camp/training. Activity benefits approximately 300 students.</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>0</GrantsAndAllocationsAmt>
        <ProgramServiceExpensesAmt>12856</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>Form 990-EZ, Par III, Line 31 - All Other Accomplishment: Copier rental for the Band and Orchestra directors to use for program purposes. Concert program printing. Activity benefits approximately 300 students and six faculty.</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>0</GrantsAndAllocationsAmt>
        <ProgramServiceExpensesAmt>10583</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>38478</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Bryan Stein</PersonNm>
        <TitleTxt>LIBC President</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Kirsti Hazelwood</PersonNm>
        <TitleTxt>LIBC Vice President</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Tracy Burger</PersonNm>
        <TitleTxt>LIBC Secretary</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Robert Howard</PersonNm>
        <TitleTxt>LIBC Treasurer</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <ActivitiesNotPreviouslyRptInd>0</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>0</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>0</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd>0</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>0</OrganizationDissolvedEtcInd>
      <DirectIndirectPltclExpendAmt>0</DirectIndirectPltclExpendAmt>
      <Form1120PolFiledInd>0</Form1120PolFiledInd>
      <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>TX</StatesWhereCopyOfReturnIsFldCd>
      <BooksInCareOfDetail>
        <PersonNm>Robert Howard</PersonNm>
        <USAddress>
          <AddressLine1Txt>1400 W Lamar Blvd</AddressLine1Txt>
          <CityNm>Arlington</CityNm>
          <StateAbbreviationCd>TX</StateAbbreviationCd>
          <ZIPCd>76012</ZIPCd>
        </USAddress>
        <PhoneNum>6828678300</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
      <ForeignOfficeInd>0</ForeignOfficeInd>
      <DonorAdvisedFndsInd>0</DonorAdvisedFndsInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <TanningServicesProvidedInd>0</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd>0</TransactionWithControlEntInd>
      <PoliticalCampaignActyInd>0</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>0</LobbyingActivitiesInd>
      <SchoolOperatingInd>0</SchoolOperatingInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>0</TrnsfrExmptNonChrtblRltdOrgInd>
      <PartVIOfCompOfHghstPdEmplTxt>NONE</PartVIOfCompOfHghstPdEmplTxt>
      <PartVIHghstPdCntrctProfSrvcTxt>NONE</PartVIHghstPdCntrctProfSrvcTxt>
      <FiledScheduleAInd>1</FiledScheduleAInd>
    </IRS990EZ>
    <IRS990ScheduleA documentId="R000002" softwareId="23018249" softwareVersionNum="v1.00">
      <SupportingOrganization509a3Ind>X</SupportingOrganization509a3Ind>
      <SupportingOrgType1Ind>X</SupportingOrgType1Ind>
      <SupportedOrganizationsCnt>1</SupportedOrganizationsCnt>
      <SupportedOrgInformationGrp>
        <SupportedOrganizationName>
          <BusinessNameLine1Txt>Arlington Independent School District (AISD)</BusinessNameLine1Txt>
        </SupportedOrganizationName>
        <EIN>756000119</EIN>
        <OrganizationTypeCd>2</OrganizationTypeCd>
        <GoverningDocumentListedInd>1</GoverningDocumentListedInd>
        <SupportAmt>0</SupportAmt>
        <OtherSupportAmt>0</OtherSupportAmt>
      </SupportedOrgInformationGrp>
      <SupportedOrganizationsTotalCnt>1</SupportedOrganizationsTotalCnt>
      <SupportSumAmt>0</SupportSumAmt>
      <OtherSupportSumAmt>0</OtherSupportSumAmt>
      <Form990SchASupportingOrgGrp>
        <ListedByNameGoverningDocInd>1</ListedByNameGoverningDocInd>
        <SuprtOrgNoIRSDeterminationInd>0</SuprtOrgNoIRSDeterminationInd>
        <SupportedOrgSectionC456Ind>0</SupportedOrgSectionC456Ind>
        <SupportedOrgNotOrganizedUSInd>0</SupportedOrgNotOrganizedUSInd>
        <OrganizationChangeSuprtOrgInd>0</OrganizationChangeSuprtOrgInd>
        <SupportNonSupportedOrgInd>0</SupportNonSupportedOrgInd>
        <PaymentSubstantialContribtrInd>0</PaymentSubstantialContribtrInd>
        <LoanDisqualifiedPersonInd>0</LoanDisqualifiedPersonInd>
        <ControlledDisqualifiedPrsnInd>0</ControlledDisqualifiedPrsnInd>
        <DisqualifiedPrsnControllIntInd>0</DisqualifiedPrsnControllIntInd>
        <DisqualifiedPrsnOwnrIntInd>0</DisqualifiedPrsnOwnrIntInd>
        <ExcessBusinessHoldingsRulesInd>0</ExcessBusinessHoldingsRulesInd>
        <ContributionControllerInd>0</ContributionControllerInd>
        <ContributionFamilyInd>0</ContributionFamilyInd>
        <Contribution35ControlledInd>0</Contribution35ControlledInd>
      </Form990SchASupportingOrgGrp>
      <Form990SchAType1SuprtOrgGrp>
        <PowerAppointMajorityDirTrstInd>1</PowerAppointMajorityDirTrstInd>
        <OperateBenefitNonSuprtOrgInd>0</OperateBenefitNonSuprtOrgInd>
      </Form990SchAType1SuprtOrgGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleG documentId="R000003" softwareId="23018249" softwareVersionNum="v1.00">
      <FundraisingEventInformationGrp>
        <Event1Nm>Fundraiser</Event1Nm>
        <GrossReceiptsEvent1Amt>20365</GrossReceiptsEvent1Amt>
        <CharitableContriEvent1Amt>0</CharitableContriEvent1Amt>
        <GrossRevenueEvent1Amt>20365</GrossRevenueEvent1Amt>
        <CashPrizesEvent1Amt>0</CashPrizesEvent1Amt>
        <NonCashPrizesEvent1Amt>0</NonCashPrizesEvent1Amt>
        <RentFacilityCostsEvent1Amt>0</RentFacilityCostsEvent1Amt>
        <FoodAndBeverageEvent1Amt>0</FoodAndBeverageEvent1Amt>
        <EntertainmentEvent1Amt>0</EntertainmentEvent1Amt>
        <OtherDirectExpensesEvent1Amt>0</OtherDirectExpensesEvent1Amt>
        <FoodAndBeverageOtherEventsAmt>0</FoodAndBeverageOtherEventsAmt>
        <EntertainmentOtherEventsAmt>0</EntertainmentOtherEventsAmt>
        <GrossReceiptsTotalAmt>20365</GrossReceiptsTotalAmt>
        <CharitableContributionsTotAmt>0</CharitableContributionsTotAmt>
        <GrossRevenueTotalEventsAmt>20365</GrossRevenueTotalEventsAmt>
        <CashPrizesTotalEventsAmt>0</CashPrizesTotalEventsAmt>
        <NonCashPrizesTotalEventsAmt>0</NonCashPrizesTotalEventsAmt>
        <RentFcltyCostsTotalEventsAmt>0</RentFcltyCostsTotalEventsAmt>
        <FoodAndBeverageTotalEventsAmt>0</FoodAndBeverageTotalEventsAmt>
        <EntertainmentTotalEventsAmt>0</EntertainmentTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>0</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>0</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>20365</NetIncomeSummaryAmt>
      </FundraisingEventInformationGrp>
    </IRS990ScheduleG>
    <IRS990ScheduleO documentId="R000004" softwareId="23018249" softwareVersionNum="v1.00">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990-EZ, Part I, Line 8</FormAndLineReferenceDesc>
        <ExplanationTxt>Office</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990-EZ, Part I, Line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>Expenses</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>