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        <PersonNm>DAVID NICHOLSON</PersonNm>
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        <PersonNm>JOSEPH HENCHMAN</PersonNm>
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        <PersonNm>MICHAEL VOGLER VICE PRESIDENT</PersonNm>
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        <PersonNm>NICOLE KAEDING</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>KYLE POMERLEAU VICE PRESIDENT</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>MICHAEL LUCCI VICE PRESIDENT</PersonNm>
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            <BusinessNameLine1Txt>V STUDIOS</BusinessNameLine1Txt>
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        <ContractorAddress>
          <USAddress>
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      <CompCurrentOfcrDirectorsGrp>
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      <FeesForServicesAccountingGrp>
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      <OtherExpensesGrp>
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        <FormAndLineReferenceDesc>SCHEDULE A, PART II, LINE 10, EXPLANATION OF OTHER INCOME:</FormAndLineReferenceDesc>
        <ExplanationTxt>OTHER INCOME - 2015 AMOUNT: $ 10,082. 2016 AMOUNT: $ 56,245. 2017 AMOUNT: $ 4,112. HONORARIA - 2017 AMOUNT: $ 15,016. 2018 AMOUNT: $ 29,068. 2019 AMOUNT: $ 19,334.</ExplanationTxt>
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          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
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        <BookValueAmt>107443</BookValueAmt>
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        <Amt>848524</Amt>
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      <OtherLiabilitiesOrgGrp>
        <Desc>CAPITAL LEASE LIABILITY</Desc>
        <Amt>9843</Amt>
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      <TotalLiabilityAmt>858367</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
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      <RevenueNotReportedAmt>172227</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>5363389</RevenueSubtotalAmt>
      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>5363389</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>5810689</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>5810689</ExpensesSubtotalAmt>
      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>5810689</TotalExpensesPerForm990Amt>
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        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FOUNDATION BELIEVES THAT IT HAS APPROPRIATE SUPPORT FOR ANY TAX POSITIONS TAKEN, AND AS SUCH, DOES NOT HAVE ANY UNCERTAIN TAX POSITIONS THAT ARE MATERIAL TO THE FINANCIAL STATEMENTS OR THAT WOULD HAVE AN EFFECT ON ITS TAX-EXEMPT STATUS. THERE ARE NO UNRECOGNIZED TAX BENEFITS OR LIABILITIES THAT NEED TO BE RECORDED.</ExplanationTxt>
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      <SubtotalEmployeesCnt>0</SubtotalEmployeesCnt>
      <ContinuationTotalOfficeCnt>0</ContinuationTotalOfficeCnt>
      <ContinuationTotalEmployeeCnt>0</ContinuationTotalEmployeeCnt>
      <TotalOfficeCnt>0</TotalOfficeCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
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      <ContinuationSpentAmt>0</ContinuationSpentAmt>
      <TotalSpentAmt>0</TotalSpentAmt>
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        <RegionTxt>EUROPE (INCLUDING ICELAND &amp; GREENLAND) - ALBANIA, ANDORRA, AUSTRIA, BELGIUM</RegionTxt>
        <PurposeOfGrantTxt>TO HELP WITH THE RESEARCH, PREPARATION, AND PUBLICATION OF THE REGIONAL TAX COMPETITIVENESS INDEX.</PurposeOfGrantTxt>
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      <InterestInForeignTrustInd>0</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>0</ForeignCorpOwnershipInd>
      <PassiveForeignInvestmestCoInd>0</PassiveForeignInvestmestCoInd>
      <ForeignPartnershipInd>0</ForeignPartnershipInd>
      <BoycottCountriesInd>0</BoycottCountriesInd>
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        <FormAndLineReferenceDesc>PART III ACCOUNTING METHOD:</FormAndLineReferenceDesc>
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      <EmailSolicitationsInd>X</EmailSolicitationsInd>
      <PhoneSolicitationsInd>X</PhoneSolicitationsInd>
      <InPersonSolicitationsInd>X</InPersonSolicitationsInd>
      <SolicitationOfNonGovtGrantsInd>X</SolicitationOfNonGovtGrantsInd>
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          <CityNm>WASHINGTON</CityNm>
          <StateAbbreviationCd>DC</StateAbbreviationCd>
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      <FundraiserActivityInfoGrp>
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      <LicensedStatesCd>CA</LicensedStatesCd>
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      <LicensedStatesCd>CT</LicensedStatesCd>
      <LicensedStatesCd>DC</LicensedStatesCd>
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      <LicensedStatesCd>GA</LicensedStatesCd>
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      <LicensedStatesCd>KY</LicensedStatesCd>
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      <LicensedStatesCd>MA</LicensedStatesCd>
      <LicensedStatesCd>MI</LicensedStatesCd>
      <LicensedStatesCd>MN</LicensedStatesCd>
      <LicensedStatesCd>MS</LicensedStatesCd>
      <LicensedStatesCd>NV</LicensedStatesCd>
      <LicensedStatesCd>NH</LicensedStatesCd>
      <LicensedStatesCd>NJ</LicensedStatesCd>
      <LicensedStatesCd>NM</LicensedStatesCd>
      <LicensedStatesCd>NY</LicensedStatesCd>
      <LicensedStatesCd>NC</LicensedStatesCd>
      <LicensedStatesCd>ND</LicensedStatesCd>
      <LicensedStatesCd>OH</LicensedStatesCd>
      <LicensedStatesCd>OK</LicensedStatesCd>
      <LicensedStatesCd>OR</LicensedStatesCd>
      <LicensedStatesCd>PA</LicensedStatesCd>
      <LicensedStatesCd>RI</LicensedStatesCd>
      <LicensedStatesCd>SC</LicensedStatesCd>
      <LicensedStatesCd>TN</LicensedStatesCd>
      <LicensedStatesCd>UT</LicensedStatesCd>
      <LicensedStatesCd>VA</LicensedStatesCd>
      <LicensedStatesCd>WA</LicensedStatesCd>
      <LicensedStatesCd>WV</LicensedStatesCd>
      <LicensedStatesCd>WI</LicensedStatesCd>
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        <Event1Nm>ANNUAL DINNER</Event1Nm>
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        <CharitableContriEvent1Amt>645378</CharitableContriEvent1Amt>
        <GrossRevenueEvent1Amt>149261</GrossRevenueEvent1Amt>
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        <FoodAndBeverageEvent1Amt>119794</FoodAndBeverageEvent1Amt>
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        <CharitableContributionsTotAmt>645378</CharitableContributionsTotAmt>
        <GrossRevenueTotalEventsAmt>149261</GrossRevenueTotalEventsAmt>
        <RentFcltyCostsTotalEventsAmt>28500</RentFcltyCostsTotalEventsAmt>
        <FoodAndBeverageTotalEventsAmt>119794</FoodAndBeverageTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>224770</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>373064</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>-223803</NetIncomeSummaryAmt>
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    </IRS990ScheduleG>
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      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>1</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>0</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>0</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>0</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>0</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>0</CompBsdNetEarnsRltdOrgsInd>
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        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
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        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
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        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>311855</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JOSEPH HENCHMAN</PersonNm>
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        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
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        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>MICHAEL VOGLER VICE PRESIDENT</PersonNm>
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        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
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        <DeferredCompensationFlngOrgAmt>8025</DeferredCompensationFlngOrgAmt>
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        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>170615</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>NICOLE KAEDING</PersonNm>
        <TitleTxt>DIR. OF FEDERAL PROJECTS</TitleTxt>
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        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>67500</OtherCompensationFilingOrgAmt>
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        <DeferredCompensationFlngOrgAmt>4084</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
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        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>156092</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>THE TAX FOUNDATION PARTICIPATES IN THE ANNUAL THINK TANK COMPENSATION STUDY WHICH COLLECTS COMPENSATION AND BENEFITS DATA RELEVANT TO THINK TANKS AND OTHER RESEARCH ORGANIZATIONS IN THE UNITED STATES THAT CONDUCT RESEARCH IN THE PUBLIC POLICY, FOREIGN POLICY, AND INTERNATIONAL RELATIONS ARENAS. THE BOARD OF DIRECTORS UTILIZES ITS EXPERIENCE AND EXPERTISE IN CONJUNCTION WITH THE STUDY RESULTS IN DETERMINING THE APPROPRIATE SALARY LEVEL ANNUALLY. THE CHAIRPERSON OF THE BOARD OF DIRECTORS COMMUNICATES IN WRITING THE SALARY APPROVED BY THE BOARD TO THE APPROPRIATE ACCOUNTING PERSONNEL.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 4A</FormAndLineReferenceDesc>
        <ExplanationTxt>JOE HENCHMAN, EXECUTIVE VICE PRESIDENT, IS NO LONGER EMPLOYED BY THE TAX FOUNDATION AND RECEIVED A SEVERANCE PACKAGE TOTALING $220,000. NICOLE KEADING, DIR. OF FEDERAL PROJECTS, IS NO LONGER EMPLOYED BY THE TAX FOUNDATION AND RECEIVED A SEVERANCE PACKAGE TOTALING $67,500.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 7</FormAndLineReferenceDesc>
        <ExplanationTxt>THE TAX FOUNDATION AWARDED PERFORMANCE BASED BONUSES TO SEVERAL EMPLOYEES, INCLUDING ALL OF THE HIGHEST COMPENSATED EMPLOYEES LISTED ON FORM 990, PART VII. THESE BONUSES ARE INCLUDED IN THE AMOUNTS REPORTED ON FORM 990, PART VII, SECTION A, COLUMN D - REPORTABLE COMPENSATION. THE PRESIDENT DECLINED A BONUS FOR 2019.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
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        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>3</ContributionCnt>
        <NoncashContributionsRptF990Amt>39404</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>SALE PRICE</MethodOfDeterminingRevenuesTxt>
      </SecuritiesPubliclyTradedGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>WINE FOR ANNUAL EVENT</Desc>
        <ContributionCnt>2</ContributionCnt>
        <NoncashContributionsRptF990Amt>5382</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FMV</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>30 CASES LIQUOR</Desc>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>4000</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FMV</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>20 CASES OF BEER</Desc>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>3000</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FMV</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>RIDE SHARE CREDITS</Desc>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>3000</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FMV</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <AnyPropertyThatMustBeHeldInd>0</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>0</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>0</ThirdPartiesUsedInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, COLUMN (B):</FormAndLineReferenceDesc>
        <ExplanationTxt>TAX FOUNDATION REPORTS THE NUMBER OF CONTRIBUTIONS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleM>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 4</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FOUNDATION AMENDED ITS BY-LAWS AT THE END OF 2019. SIGNIFICANT CHANGES WERE MADE TO THE NUMBER OF BOARD OF DIRECTORS FROM 11 TO 13, AND INCREASING BOARD TERMS FROM 1 YEAR TO 3 YEARS, WITH UP TO 2 CONSECUTIVE TERMS, WITH STAGGERED TERMS BEGINNING IN 2020.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FEDERAL FORM 990 IS REVIEWED BY THE ACCOUNTING PERSONNEL AND THE PRESIDENT OF THE TAX FOUNDATION BEFORE BEING SIGNED BY THE PRESIDENT. A COPY OF THE 990 IS PROVIDED TO ALL MEMBERS OF THE BOARD OF DIRECTORS ELECTRONICALLY PRIOR TO BEING FILED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>AS A GENERAL POLICY MATTER THE TAX FOUNDATION DOES NOT PERMIT MEMBERS OF THE BOARD OF DIRECTORS TO ENTER INTO FINANCIAL ARRANGEMENTS, PROVIDE SERVICES, OR OTHERWISE BE COMPENSATED IN ANY MANNER, INCLUDING ANY COMPANY WITH WHICH SUCH BOARD MEMBER MAY BE ASSOCIATED. BIANNUALLY, ALL OFFICERS AND MEMBERS OF THE BOARD OF DIRECTORS MUST REVIEW AND SIGN A CONFLICT OF INTEREST POLICY STATEMENT. THE MONITORING OF COMPLIANCE IS HANDLED INFORMALLY AT REGULARLY SCHEDULED BOARD MEETINGS. FOR EMPLOYEES, THE CONFLICT OF INTEREST POLICY IS CONTAINED WITHIN THEIR EMPLOYEE MANUAL. THEY SIGN THE MANUAL WHEN THEY ARE HIRED OR WHEN CHANGES ARE MADE TO THE MANUAL.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE TAX FOUNDATION PARTICIPATES IN THE ANNUAL THINK TANK COMPENSATION STUDY WHICH COLLECTS COMPENSATION AND BENEFITS DATA RELEVANT TO THINK TANKS AND OTHER RESEARCH ORGANIZATIONS IN THE U.S. THAT CONDUCT RESEARCH IN THE PUBLIC POLICY, FOREIGN POLICY, AND INTERNATIONAL RELATIONS ARENAS. THE BOARD OF DIRECTORS UTILIZES ITS EXPERIENCE AND EXPERTISE IN CONJUNCTION WITH THE STUDY TO DETERMINE THE APPROPRIATE SALARY LEVEL FOR THE PRESIDENT AND ALL STAFF MEMBERS. THE ORGANIZATION CURRENTLY HAS NO OTHER PAID OFFICERS OR STAFF MEMBERS CLASSIFIED AS "KEY EMPLOYEES" AS DEFINED BY THE IRS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION PROVIDES GOVERNING DOCUMENTS, THE FEDERAL FORM 990 AND APPLICATION FOR EXEMPTION (FEDERAL FORM 1023) TO INTERESTED PARTIES UPON REQUEST. COPIES OF THE AUDITED FINANCIAL STATEMENTS AND FORM 990 ARE AVAILABLE ON THE WEBSITE. THE ORGANIZATION HAS NOT BEEN ASKED TO AND CURRENTLY DOES NOT HAVE A POLICY OF PROVIDING A COPY OF THE CONFLICT OF INTEREST POLICY.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION HAS NOT CHANGED ITS OVERSIGHT PROCESS OR SELECTION OF AN INDEPENDENT AUDITOR PROCESS DURING THE YEAR.</ExplanationTxt>
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    </IRS990ScheduleO>
  </ReturnData>
</Return>