Civic Intelligence

The Mcmahon Foundation

EIN 45-4616291 • Naples, FL

Pub. 78 Eligible
4423 7th Ave SWNaples, FL 34119
Siviq Scores

Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.

Liabilities / Assets

63rd percentile

0.00x

Tied with the lowest-debt nonprofits in its peer group.

<$500k nonprofits • Source year 2024

Liabilities / Revenue

Score unavailable

No value available

Liabilities-to-revenue requires both liabilities and revenue on the latest valid filing.

Source year 2024

Net Margin

99th percentile

124%

Higher net margin than 99% of similar nonprofits.

<$500k nonprofits • Source year 2024

Top Officer Pay

81st percentile

$0

Higher top officer pay than 81% of similar nonprofits.

<$500k nonprofits • Source year 2024

Asset Growth

22nd percentile

-43%

Faster asset growth than 22% of similar nonprofits.

<$500k nonprofits • Annualized from 2023 to 2024

Revenue Growth

Score unavailable

No value available

A valid growth rate could not be computed from the available filing history.

Annualized from 2023 to 2024

Assets

Down

$301,805

Down $225,777 (-43%) from 2023

Liabilities

Down

$0

Down $121,959 (-100%) from 2023

Net Assets

Down

$301,805

Down $103,818 (-26%) from 2023

Revenue

Up

-$83,775

Up $21,465 (+20%) from 2023

Expenses

Down

$20,043

Down $53,656 (-73%) from 2023

Net Income

Up

-$103,818

Up $75,121 (+42%) from 2023

Trend Graphs

Balance Sheet Trend

Grouped bars show assets, liabilities, and net assets across loaded filings.

$800K$600K$400K$200K$0Assets 2012: $5,000Liabilities 2012: $02012Assets 2013: $30,970Liabilities 2013: $02013Assets 2014: $37,352Liabilities 2014: $0Net Assets 2014: $37,3522014Assets 2015: $29,834Liabilities 2015: $0Net Assets 2015: $29,8342015Assets 2016: $25,994Liabilities 2016: $0Net Assets 2016: $25,9942016Assets 2017: $53,091Liabilities 2017: $0Net Assets 2017: $53,0912017Assets 2018: $186,563Liabilities 2018: $81,533Net Assets 2018: $105,0302018Assets 2019: $200,227Liabilities 2019: $82,547Net Assets 2019: $117,6802019Assets 2020: $281,104Liabilities 2020: $83,290Net Assets 2020: $197,8142020Assets 2021: $700,396Liabilities 2021: $127,008Net Assets 2021: $573,3882021Assets 2022: $662,818Liabilities 2022: $78,256Net Assets 2022: $584,5622022Assets 2023: $527,582Liabilities 2023: $121,959Net Assets 2023: $405,6232023Assets 2024: $301,805Liabilities 2024: $0Net Assets 2024: $301,8052024

Highlighted filing

2024

Assets$301,805
Liabilities$0
Net Assets$301,805

Operations Trend

Revenue, expenses, and net income by year, with the latest filing highlighted.

$600K$400K$200K$0-$200KRevenue 2012: $5,000Expenses 2012: $0Net Income 2012: $5,0002012Revenue 2013: $31,578Expenses 2013: $5,608Net Income 2013: $25,9702013Revenue 2014: $12,722Expenses 2014: $6,340Net Income 2014: $6,3822014Revenue 2015: $9,519Expenses 2015: $17,037Net Income 2015: -$7,5182015Revenue 2016: $5,411Expenses 2016: $9,251Net Income 2016: -$3,8402016Revenue 2017: $33,945Expenses 2017: $6,848Net Income 2017: $27,0972017Revenue 2018: $62,738Expenses 2018: $10,799Net Income 2018: $51,9392018Revenue 2019: $33,186Expenses 2019: $20,536Net Income 2019: $12,6502019Revenue 2020: $113,988Expenses 2020: $33,854Net Income 2020: $80,1342020Revenue 2021: $422,409Expenses 2021: $46,835Net Income 2021: $375,5742021Revenue 2022: $30,000Expenses 2022: $18,826Net Income 2022: $11,1742022Revenue 2023: -$105,240Expenses 2023: $73,699Net Income 2023: -$178,9392023Revenue 2024: -$83,775Expenses 2024: $20,043Net Income 2024: -$103,8182024

Highlighted filing

2024

Revenue-$83,775
Expenses$20,043
Net Income-$103,818

Filings

Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jan 1, 2024 to Dec 31, 2024
Signed
Jun 13, 2025
Return Version
2024v5.1
Compensation and Service Providers

Employees

NameTitleFull / Part TimeBaseOtherTotal
TIM MCMAHONPresident, Director-$0--
FRANK SHINNICKSecretary/Treasurer, Direc-$0--
Filing and Contact Details

Filer

Filer Name
The Mcmahon Foundation
EIN
45-4616291
Phone
6306051429
Address
4423 7TH AVE SW, NAPLES, FL 34119

Signing Officer

Name
Tim Mcmahon
Title
President
Phone
6306051429
Signed
2025-06-13
Discuss with paid preparer
Yes

Preparer

Firm
Markham Norton Mosteller Wright & Co
Address
8961 CONFERENCE DRIVE SUITE 1, FORT MYERS, FL 33919
Preparer
Karen Mosteller
Phone
2394335554
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This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.

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IRS990PF/StatementsRegardingActy4720Grp/FurnGoodsDisqualifiedPrsnInd00
IRS990PF/StatementsRegardingActy4720Grp/GrantsToIndividualsInd00
IRS990PF/StatementsRegardingActy4720Grp/GrantsToOrganizationsInd00
IRS990PF/StatementsRegardingActy4720Grp/InfluenceElectionInd00
IRS990PF/StatementsRegardingActy4720Grp/InfluenceLegislationInd00
IRS990PF/StatementsRegardingActy4720Grp/JeopardyInvestmentsInd00
IRS990PF/StatementsRegardingActy4720Grp/NoncharitablePurposeInd00
IRS990PF/StatementsRegardingActy4720Grp/PayCompDisqualifiedPrsnInd00
IRS990PF/StatementsRegardingActy4720Grp/PaymentToGovernmentOfficialInd00
IRS990PF/StatementsRegardingActy4720Grp/PayPremiumsPrsnlBnftCntrctInd00
IRS990PF/StatementsRegardingActy4720Grp/ProhibitedTaxShelterTransInd00
IRS990PF/StatementsRegardingActy4720Grp/RcvFndsToPayPrsnlBnftCntrctInd00
IRS990PF/StatementsRegardingActy4720Grp/SaleOrExchDisqualifiedPrsnInd00
IRS990PF/StatementsRegardingActy4720Grp/SubjToTaxRmnrtnExPrchtPymtInd00
IRS990PF/StatementsRegardingActy4720Grp/TransferAstDisqualifiedPrsnInd00
IRS990PF/StatementsRegardingActy4720Grp/UncorrectedPriorActsInd00
IRS990PF/StatementsRegardingActy4720Grp/UncorrectedPYJeopardyInvstInd00
IRS990PF/StatementsRegardingActy4720Grp/UndistributedIncomePYInd00
IRS990PF/StatementsRegardingActyGrp/ActivitiesNotPreviouslyRptInd00
IRS990PF/StatementsRegardingActyGrp/AtLeast5000InAssetsInd01
IRS990PF/StatementsRegardingActyGrp/ChangesToArticlesOrBylawsInd00
IRS990PF/StatementsRegardingActyGrp/ComplyWithPublicInspRqrInd01
IRS990PF/StatementsRegardingActyGrp/DonorAdvisedFundInd00
IRS990PF/StatementsRegardingActyGrp/ForeignAccountsQuestionInd00
IRS990PF/StatementsRegardingActyGrp/Form1120POLFiledInd00
IRS990PF/StatementsRegardingActyGrp/Form990PFFiledWithAttyGenInd01
IRS990PF/StatementsRegardingActyGrp/IndividualWithBooksNm0TIM MCMAHON
IRS990PF/StatementsRegardingActyGrp/LegislativePoliticalActyInd00
IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/AddressLine1Txt04423 7TH AVENUE SW
IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/CityNm0NAPLES
IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/StateAbbreviationCd0FL
IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/ZIPCd034119
IRS990PF/StatementsRegardingActyGrp/MoreThan100SpentInd00
IRS990PF/StatementsRegardingActyGrp/NewSubstantialContributorsInd00
IRS990PF/StatementsRegardingActyGrp/OrganizationDissolvedEtcInd00
IRS990PF/StatementsRegardingActyGrp/OrgReportOrRegisterStateCd0IL
IRS990PF/StatementsRegardingActyGrp/OwnControlledEntityInd00
IRS990PF/StatementsRegardingActyGrp/PhoneNum06306051429
IRS990PF/StatementsRegardingActyGrp/PrivateOperatingFoundationInd00
IRS990PF/StatementsRegardingActyGrp/Section4955ManagersTaxAmt00
IRS990PF/StatementsRegardingActyGrp/Section4955OrganizationTaxAmt00
IRS990PF/StatementsRegardingActyGrp/Section508eRqrSatisfiedInd01
IRS990PF/StatementsRegardingActyGrp/TaxReimbursedAmt00
IRS990PF/StatementsRegardingActyGrp/UnrelatedBusIncmOverLimitInd00
IRS990PF/StatementsRegardingActyGrp/WebsiteAddressTxt0N/A
IRS990PF/SumOfProgramRelatedInvstGrp/TotalAmt00
IRS990PF/SupplementaryInformationGrp/ApplicationSubmissionInfoGrp/FormAndInfoAndMaterialsTxt0WRITTEN AND STATE NATURE OF FUNDS USE AND THE BENEFITS TO THE PARTICIPANTS, COMMUNITY, ETC.
IRS990PF/SupplementaryInformationGrp/ApplicationSubmissionInfoGrp/RecipientEmailAddressTxt0[email protected]
IRS990PF/SupplementaryInformationGrp/ApplicationSubmissionInfoGrp/RecipientPersonNm0TIM MCMAHON
IRS990PF/SupplementaryInformationGrp/ApplicationSubmissionInfoGrp/RecipientPhoneNum06306051429
IRS990PF/SupplementaryInformationGrp/ApplicationSubmissionInfoGrp/RecipientUSAddress/AddressLine1Txt04423 7TH AVENUE SW
IRS990PF/SupplementaryInformationGrp/ApplicationSubmissionInfoGrp/RecipientUSAddress/CityNm0NAPLES
IRS990PF/SupplementaryInformationGrp/ApplicationSubmissionInfoGrp/RecipientUSAddress/StateAbbreviationCd0FL
IRS990PF/SupplementaryInformationGrp/ApplicationSubmissionInfoGrp/RecipientUSAddress/ZIPCd034119
IRS990PF/SupplementaryInformationGrp/ApplicationSubmissionInfoGrp/RestrictionsOnAwardsTxt0NONE
IRS990PF/SupplementaryInformationGrp/ApplicationSubmissionInfoGrp/SubmissionDeadlinesTxt0NONE
IRS990PF/SupplementaryInformationGrp/ContributingManagerNm0TIM MCMAHON
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt02500
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt0CHARITABLE PURPOSES
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt0THE LEUKEMIA & LYMPHOMA SOCIETY
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt0PC
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt0NONE
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt0PO BOX 22324
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm0NEW YORK
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd0NY
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd010087
IRS990PF/SupplementaryInformationGrp/TotalGrantOrContriApprvFutAmt00
IRS990PF/SupplementaryInformationGrp/TotalGrantOrContriPdDurYrAmt02500
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/LoansOrLoanGuaranteesInd00
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/PerformanceOfServicesEtcInd00
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/PurchaseOfAssetsNonchrtblEOInd00
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/ReimbursementArrangementsInd00
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/RelationshipsNonchrtblEOInd00
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/RentalOfFacilitiesOthAssetsInd00
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/SalesOrExchangesOfAssetsInd00
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/SharingOfFacilitiesEtcInd00
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/TrnsfrOfCashToNonchrtblEOInd00
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/TrnsfrOtherAssetNonchrtblEOInd00
IRS990PF/UndistributedIncomeGrp/AppliedToCurrentYearAmt02500
IRS990PF/UndistributedIncomeGrp/AppliedToPriorYearsAmt00
IRS990PF/UndistributedIncomeGrp/AppliedToYear1Amt00
IRS990PF/UndistributedIncomeGrp/CorpusDistri170b1EOr4942g3Amt00
IRS990PF/UndistributedIncomeGrp/DistributableAsAdjustedAmt013375
IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovAppCYAmt010875
IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr1Amt036947
IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr3Amt025546
IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr4Amt014765
IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovAppCYCorpusAmt010875
IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovFromYr5Amt00
IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovToNextYrAmt066383
IRS990PF/UndistributedIncomeGrp/ExcessFromYear1Amt036947
IRS990PF/UndistributedIncomeGrp/ExcessFromYear3Amt025546
IRS990PF/UndistributedIncomeGrp/ExcessFromYear4Amt03890
IRS990PF/UndistributedIncomeGrp/PriorYearDeficiencyOrTaxAmt00
IRS990PF/UndistributedIncomeGrp/PriorYearUndistributedIncmAmt00
IRS990PF/UndistributedIncomeGrp/QualifyingDistributionsAmt02500
IRS990PF/UndistributedIncomeGrp/RemainingDistriFromCorpusAmt00
IRS990PF/UndistributedIncomeGrp/Taxable1Amt00
IRS990PF/UndistributedIncomeGrp/Taxable2Amt00
IRS990PF/UndistributedIncomeGrp/TotalCorpusAmt066383
IRS990PF/UndistributedIncomeGrp/TotalExcessDistributionCyovAmt077258
IRS990PF/UndistributedIncomeGrp/TotalForPriorYearsAmt00
IRS990PF/UndistributedIncomeGrp/TreatedAsDistriFromCorpusAmt00
IRS990PF/UndistributedIncomeGrp/UndistributedIncomeCYAmt00
IRS990PF/UndistributedIncomeGrp/UndistributedIncomePYAmt00
OtherAssetsSchedule/OtherAssetsScheduleGrp/BOYBookValueAmt0832
OtherAssetsSchedule/OtherAssetsScheduleGrp/Desc0DUE FROM TSM MANAGEMENT
OtherLiabilitiesSchedule/OtherLiabilitiesDetail/BOYBookValueAmt0116959
OtherLiabilitiesSchedule/OtherLiabilitiesDetail/BOYBookValueAmt15000
OtherLiabilitiesSchedule/OtherLiabilitiesDetail/Desc0MARGIN LOAN - TD AMERITRADE
OtherLiabilitiesSchedule/OtherLiabilitiesDetail/Desc1CREDIT CARD PAYABLE
OtherLiabilitiesSchedule/OtherLiabilitiesDetail/EOYBookValueAmt00
OtherLiabilitiesSchedule/OtherLiabilitiesDetail/EOYBookValueAmt10
TaxesSchedule/TaxesDetail/AdjustedNetIncomeAmt00
TaxesSchedule/TaxesDetail/AdjustedNetIncomeAmt10
TaxesSchedule/TaxesDetail/Amt015
TaxesSchedule/TaxesDetail/Amt199
TaxesSchedule/TaxesDetail/CategoryTxt0LICENSES & TAXES
TaxesSchedule/TaxesDetail/CategoryTxt1FEES
TaxesSchedule/TaxesDetail/DisbursementsCharitablePrpsAmt00
TaxesSchedule/TaxesDetail/DisbursementsCharitablePrpsAmt10
TaxesSchedule/TaxesDetail/NetInvestmentIncomeAmt00
TaxesSchedule/TaxesDetail/NetInvestmentIncomeAmt10
ReturnHeader/BuildTS02025-03-06 01:10:19Z
ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd01
ReturnHeader/BusinessOfficerGrp/PersonNm0TIM MCMAHON
ReturnHeader/BusinessOfficerGrp/PersonTitleTxt0PRESIDENT
ReturnHeader/BusinessOfficerGrp/PhoneNum06306051429
ReturnHeader/BusinessOfficerGrp/SignatureDt02025-06-13
ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt0THE MCMAHON FOUNDATION
ReturnHeader/Filer/BusinessNameControlTxt0MCMA
ReturnHeader/Filer/EIN0454616291
ReturnHeader/Filer/PhoneNum06306051429
ReturnHeader/Filer/USAddress/AddressLine1Txt04423 7TH AVE SW
ReturnHeader/Filer/USAddress/CityNm0NAPLES
ReturnHeader/Filer/USAddress/StateAbbreviationCd0FL
ReturnHeader/Filer/USAddress/ZIPCd034119
ReturnHeader/IRSResponsiblePrtyInfoCurrInd01
ReturnHeader/PreparerFirmGrp/PreparerFirmEIN0331068007
ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt0MARKHAM NORTON MOSTELLER WRIGHT & CO
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt08961 CONFERENCE DRIVE SUITE 1
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm0FORT MYERS
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd0FL
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd033919
ReturnHeader/PreparerPersonGrp/PhoneNum02394335554
ReturnHeader/PreparerPersonGrp/PreparerPersonNm0KAREN MOSTELLER
ReturnHeader/ReturnTs02025-06-17T15:00:21-05:00
ReturnHeader/ReturnTypeCd0990PF
ReturnHeader/TaxPeriodBeginDt02024-01-01
ReturnHeader/TaxPeriodEndDt02024-12-31
ReturnHeader/TaxYr02024

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