Liabilities / Assets
59th percentile
Tied with the lowest-debt nonprofits in its peer group.
EIN 84-2588220 • 501(c)3 • Winthrop, MA
Profile
The winthrop foundation is a volunteer board of trustees whose mission is to offer grant funding to a range of programs and organizations in winthrop to improve the quality of life of our community. The foundation offers grant funding to local charitable organizations and programs that serve the public. Grant support and coordination is provided by the administrator.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
59th percentile
Tied with the lowest-debt nonprofits in its peer group.
Liabilities / Revenue
61st percentile
Tied with the lowest-debt nonprofits in its peer group.
Net Margin
1st percentile
Higher net margin than 1% of similar nonprofits.
Top Officer Pay
Score unavailable
No filing with officer rows is available for this organization yet.
Asset Growth
28th percentile
Faster asset growth than 28% of similar nonprofits.
Revenue Growth
Score unavailable
A valid growth rate could not be computed from the available filing history.
Assets
Up$895,967
Up $418,660 (+88%) from 2023
Liabilities
Flat$0
Flat from 2023
Net Assets
Up$895,967
Up $418,660 (+88%) from 2023
Revenue
Up$509,795
Up $509,738 (+894277%) from 2023
Expenses
Down$91,135
Down $90,419 (-50%) from 2023
Net Income
Up$418,660
Up $600,157 (+331%) from 2023
Most recent year
2024 • Form 990Detailed filing. Detailed filing data is available for this year.
The winthrop foundation is a volunteer board of trustees whose mission is to offer grant funding to a range of programs and organizations in winthrop to improve the quality of life of our community. The foundation offers grant funding to local charitable organizations and programs that serve the public. Grant support and coordination is provided by the administrator.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Cash and Non-Interest-Bearing Accounts | $477,307 | $642,241 | ▲ $164,934 |
| Savings and Temporary Cash Investments | - | $253,726 | - |
| Total Assets | $477,307 | $895,967 | ▲ $418,660 |
| Liabilities | |||
| Total Liabilities | $0 | $0 | → $0 |
| Net Assets / Fund Balance | |||
| Net Assets With Donor Restrictions | $422,783 | $787,464 | ▲ $364,681 |
| Net Assets Without Donor Restrictions | $54,524 | $108,503 | ▲ $53,979 |
| Total Net Assets Fund Balance | $477,307 | $895,967 | ▲ $418,660 |
| Total Liabilities and Net Assets / Fund Balance | $477,307 | $895,967 | ▲ $418,660 |
| Name | Title |
|---|---|
| Russell Sanford | Chairman |
| CHRISSY D'AMBROSIO | Board Member |
| Gus Martucci | Board Member |
| Terence Delehanty | Board Member |
| Vasili Mallios | Board Member |
| Vincent Crossman | Secretary |
| Brian Leslie | Treasurer |
| Line Item | Amount |
|---|---|
| Grants and Similar Amounts Paid | $71,956 |
| Other Expenses | $19,179 |
| Professional Fundraising Fees | $0 |
| Salaries, Compensation, and Employee Benefits | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Grants to Domestic Orgs | $71,956 | - | - | $71,956 |
| Fees for Services Accounting | - | $7,100 | - | $7,100 |
| Office Expenses | $2,906 | $726 | - | $3,632 |
| Other Expenses | $447 | $4,000 | - | $447 |
| Total Functional Expenses | $79,309 | $11,826 | $0 | $91,135 |
| Line Item | Amount |
|---|---|
| Expenses per Audited Statements | $91,135 |
| Total Expenses per Audited Statements | $91,135 |
| Total Expenses per Form 990 | $91,135 |
| Expenses Not Reported on Financial Statements | $0 |
| Expenses Not Reported on Form 990 | $0 |
| Recipient | Location | Category | Purpose | Amount |
|---|---|---|---|---|
| Town of Winthrop | Winthrop, MA | - | Support for Fire Victims | $27,956 |
| Winthrop Parks and Recreation | Winthrop, MA | - | Court Installation and Repairs | $15,000 |
| Winthrop Chamber of Commerce | Winthrop, MA | - | Field Renovation | $13,500 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
“A copy of the form 990 was provided to the organization's governing body before it was filed. The governing body had a meeting to review the form 990, then approved it, and then the accountant filed the return.”
“UPON REQUEST”
“The organization will make these documents available upon request.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | THE WINTHROP FOUNDATION IS A VOLUNTEER BOARD OF TRUSTEES WHOSE MISSION IS TO OFFER GRANT FUNDING TO A RANGE OF PROGRAMS AND ORGANIZATIONS IN WINTHROP TO IMPROVE THE QUALITY OF LIFE OF OUR COMMUNITY. THE FOUNDATION OFFERS GRANT FUNDING TO LOCAL CHARITABLE ORGANIZATIONS AND PROGRAMS THAT SERVE THE PUBLIC. GRANT SUPPORT AND COORDINATION IS PROVIDED BY THE ADMINISTRATOR. |
| IRS990/AllOtherContributionsAmt | 0 | 506000 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | BRIAN LESLIE |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 6175681024 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | PO BOX 520305 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | WINTHROP |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 02152 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 477307 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 642241 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 0 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 0 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 506000 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 71956 |
| IRS990/CYInvestmentIncomeAmt | 0 | 3795 |
| IRS990/CYOtherExpensesAmt | 0 | 19179 |
| IRS990/CYOtherRevenueAmt | 0 | 0 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 418660 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/CYTotalExpensesAmt | 0 | 91135 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 509795 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/Desc | 0 | THE WINTHROP FOUNDATION WAS ESTABLISHED TO PROVIDE FUNDING OF PROGRAMS OR PROJECTS IN OR BENEFITTING THE TOWN OF WINTHROP TO AVOID, LIMIT, OR MITIGATE ANY ENVIRONMENTAL OR SOCIOECONOMIC IMPACTS OR EFFECTS OF WORKS, PROJECTS, OR ACTIVITIES AT LOGAN AIRPORT, AND/OR FUNDING OF ANY PROJECTS FOR PUBLIC OR CHARITABLE PURPOSES THAT BENEFIT OF THE TOWN OF WINTHROP AND OFFSET OR MITIGATE AGAINST SUCH IMPACTS OR EFFECTS, INCLUDING, WITHOUT LIMITATION, PROJECTS ACQUIRING, CREATING, PRESERVING AND/OR REHABILITATING OPEN SPACE, ACTIVE AND PASSIVE RECREATION, AND/OR CONSERVATION. IT ALSO PROVIDES EXPENDITURES FOR RESEARCH AND EDUCATION, INCLUDING CONFERENCES AND SEMINARS, TO PROMOTE LOCAL BUSINESS INITIATIVES IN THE TOWN OF WINTHROP THAT RELATE TO AIRPORT FUNCTIONS AND NEEDS. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 0 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 422783 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 787464 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 79309 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 7100 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 7100 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | RUSSELL SANFORD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | VINCENT CROSSMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | BRIAN LESLIE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | TERENCE DELEHANTY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | GUS MARTUCCI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | VASILI MALLIOS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | CHRISSY D'AMBROSIO |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | CHAIRMAN |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | BOARD MEMBER |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 2019 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 7 |
| IRS990/GrantAmt | 0 | 71956 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 71956 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 71956 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 1 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 509795 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 7 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 3795 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 3795 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/IRPDocumentCnt | 0 | 1 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LegalDomicileStateCd | 0 | MA |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingCashInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | THE WINTHROP FOUNDATION IS A VOLUNTEER BOARD OF TRUSTEES WHOSE MISSION IS TO OFFER GRANT FUNDING TO A RANGE OF PROGRAMS AND ORGANIZATIONS IN WINTHROP TO IMPROVE THE QUALITY OF LIFE OF OUR COMMUNITY. THE FOUNDATION OFFERS GRANT FUNDING TO LOCAL CHARITABLE ORGANIZATIONS AND PROGRAMS THAT SERVE THE PUBLIC. GRANT SUPPORT AND COORDINATION IS PROVIDED BY THE ADMINISTRATOR. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 477307 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 895967 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 54524 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 108503 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 726 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 2906 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 3632 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/Desc | 0 | CONTRACTORS |
| IRS990/OtherExpensesGrp/Desc | 1 | SUBSCRIPTIONS |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 4000 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 4000 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 447 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 8000 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 447 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrincipalOfficerNm | 0 | RUSSELL SANFORD |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 0 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 169656 |
| IRS990/PYInvestmentIncomeAmt | 0 | 57 |
| IRS990/PYOtherExpensesAmt | 0 | 11898 |
| IRS990/PYOtherRevenueAmt | 0 | 0 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | -181497 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/PYTotalExpensesAmt | 0 | 181554 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 57 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 418660 |
| IRS990/RelatedEntityInd | 0 | 0 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 0 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 0 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 253726 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 506000 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 500000 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 500000 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 1506000 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 3795 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus1YearAmt | 0 | 57 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 67 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 42 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 90 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 4051 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.99730 |
| IRS990ScheduleA/PublicSupportPY170Pct | 0 | 0.99970 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 1506000 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind | 0 | X |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 506000 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 500000 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 500000 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 1506000 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 1510051 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine2 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | RESTRICTED |
| IRS990/ScheduleBRequiredInd | 0 | 1 |
| IRS990ScheduleD/ExpensesNotReportedAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesNotRptFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 91135 |
| IRS990ScheduleD/RevenueNotReportedAmt | 0 | 0 |
| IRS990ScheduleD/RevenueNotReportedFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/RevenueSubtotalAmt | 0 | 509795 |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 0 |
| IRS990ScheduleD/TotalExpensesPerForm990Amt | 0 | 91135 |
| IRS990ScheduleD/TotalRevenuePerForm990Amt | 0 | 509795 |
| IRS990ScheduleD/TotalRevEtcAuditedFinclStmtAmt | 0 | 509795 |
| IRS990ScheduleD/TotExpnsEtcAuditedFinclStmtAmt | 0 | 91135 |
| IRS990ScheduleI/GrantRecordsMaintainedInd | 0 | 0 |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 0 | 27956 |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 1 | 13500 |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 2 | 15000 |
| IRS990ScheduleI/RecipientTable/NonCashAssistanceAmt | 0 | 0 |
| IRS990ScheduleI/RecipientTable/NonCashAssistanceAmt | 1 | 0 |
| IRS990ScheduleI/RecipientTable/NonCashAssistanceAmt | 2 | 0 |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 0 | SUPPORT FOR FIRE VICTIMS |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 1 | FIELD RENOVATION |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 2 | COURT INSTALLATION AND REPAIRS |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 0 | TOWN OF WINTHROP |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 1 | WINTHROP CHAMBER OF COMMERCE |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 2 | WINTHROP PARKS AND RECREATION |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 0 | 046001372 |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 1 | 042807677 |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 0 | 1 METCALF SQUARE |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 1 | 207 HAGMAN ROAD 04 |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 2 | 151 PAULINE STREET |
| IRS990ScheduleI/RecipientTable/USAddress/CityNm | 0 | WINTHROP |
| IRS990ScheduleI/RecipientTable/USAddress/CityNm | 1 | WINTHROP |
| IRS990ScheduleI/RecipientTable/USAddress/CityNm | 2 | WINTHROP |
| IRS990ScheduleI/RecipientTable/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990ScheduleI/RecipientTable/USAddress/StateAbbreviationCd | 1 | MA |
| IRS990ScheduleI/RecipientTable/USAddress/StateAbbreviationCd | 2 | MA |
| IRS990ScheduleI/RecipientTable/USAddress/ZIPCd | 0 | 02152 |
| IRS990ScheduleI/RecipientTable/USAddress/ZIPCd | 1 | 02152 |
| IRS990ScheduleI/RecipientTable/USAddress/ZIPCd | 2 | 02152 |
| IRS990/ScheduleJRequiredInd | 0 | 0 |
| IRS990/ScheduleORequiredInd | 0 | 1 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | A COPY OF THE FORM 990 WAS PROVIDED TO THE ORGANIZATION'S GOVERNING BODY BEFORE IT WAS FILED. THE GOVERNING BODY HAD A MEETING TO REVIEW THE FORM 990, THEN APPROVED IT, AND THEN THE ACCOUNTANT FILED THE RETURN. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | UPON REQUEST |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | THE ORGANIZATION WILL MAKE THESE DOCUMENTS AVAILABLE UPON REQUEST. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | FORM 990, PART VI, SECTION B, LINE 11B |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | FORM 990, PART VI, SECTION C, LINE 18 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | FORM 990, PART VI, SECTION C, LINE 19 |
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| ReturnHeader/BuildTS | 0 | 2024-10-15 13:58:12Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | 1 |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | RUSSELL SANFORD |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | PRESIDENT |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 6175681024 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2025-01-17 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | THE WINTHROP FOUNDATION |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | WINT |
| ReturnHeader/Filer/EIN | 0 | 842588220 |
| ReturnHeader/Filer/PhoneNum | 0 | 6173291462 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | PO BOX 520305 |
| ReturnHeader/Filer/USAddress/CityNm | 0 | WINTHROP |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | MA |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 02152 |
| ReturnHeader/IRSResponsiblePrtyInfoCurrInd | 0 | 1 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 475208450 |
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| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 501 PROVIDENCE HWY |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | NORWOOD |
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| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 02062 |
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| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2025-01-17 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | CHRISTOPHER NASH |
| ReturnHeader/ReturnTs | 0 | 2025-01-17T10:10:34-06:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990 |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2023-07-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2024-06-30 |
| ReturnHeader/TaxYr | 0 | 2023 |
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