Nonprofit · EIN 45-4616291
MCMAHON FOUNDATION
Tax-exempt · NAPLES, FL 34119
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $5,138 | $18,199 | -$13,061 | $286,843 | $0 | $286,843 |
| December 31, 2024 | 990-PF | -$83,775 | $20,043 | -$103,818 | $301,805 | $0 | $301,805 |
| December 31, 2023 | 990-PF | -$105,240 | $73,699 | -$178,939 | $527,582 | $121,959 | $405,623 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Dividends
- $24,987
- Interest
- $10
- Net gain from sales of assets
- -$19,859
Expenses
- Grants and similar amounts paid
- $15,000
- Compensation of officers, directors and key employees
- $0
- Disbursements for charitable purposes
- $18,198
- Excise tax on investment income
- $237
Balance sheet and other
- Total assets, start of year
- $301,805
- Total assets, end of year
- $286,843
- Total liabilities, end of year
- $0
- Net assets, end of year
- $286,843
- Fair market value of assets
- $264,007
- Qualifying distributions
- $18,198
- Net investment income
- $17,072
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990-PF for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| TIM MCMAHON 4423 7TH AVENUE SW, NAPLES, FL 34119 | PRESIDENT, DIRECTOR | 4 | $0 |
| FRANK SHINNICK 4423 7TH AVENUE SW, NAPLES, FL 34119 | SECRETARY/TREASURER, DIREC | 1 | $0 |
| JEANNINE STETSON 4423 7TH AVENUE SW, NAPLES, FL 34119 | DIRECTOR | 1 | $0 |
990-PF for the year ended December 31, 2024: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| TIM MCMAHON 4423 7TH AVENUE SW, NAPLES, FL 34119 | PRESIDENT, DIRECTOR | 4 | $0 |
| FRANK SHINNICK 4423 7TH AVENUE SW, NAPLES, FL 34119 | SECRETARY/TREASURER, DIREC | 1 | $0 |
990-PF for the year ended December 31, 2023: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| TIM MCMAHON 4423 7TH AVENUE SW, NAPLES, FL 34119 | PRESIDENT, DIRECTOR | 4 | $0 |
| FRANK SHINNICK 4423 7TH AVENUE SW, NAPLES, FL 34119 | SECRETARY/TREASURER, DIREC | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 4423 7TH AVE SW, NAPLES, FL 34119-4033
- In care of
- % TIM MCMAHON
- Signed the 990-PF
- TIM MCMAHON, PRESIDENT
- Phone
- (630) 605-1429
- Return prepared by
- MARKHAM NORTON MOSTELLER WRIGHT & CO
What it must file and when
IRS records say it files Form 990-PF. Private foundations file every year. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990-PF on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990-PF on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990-PF on file |
IRS record
- EIN
- 45-4616291
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Private non-operating foundation
- Donations deductible (Pub 78)
- Private foundation, 30% limit
- Exempt since
- 2013
- Accounting year ends
- December
- Files
- Form 990-PF
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T20)
- Assets (IRS master file)
- $286,843
- Income (IRS master file)
- $518,787
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $5,138 | $18,199 | $286,843 | XML |
| 990-PF | December 2024 | -$83,775 | $20,043 | $301,805 | XML |
| 990-PF | December 2023 | -$105,240 | $73,699 | $527,582 | XML |
| 990-PF | December 2022 | – | – | – | IRS |
| 990-PF | December 2021 | – | – | – | IRS |
| 990-PF | December 2020 | – | – | – | IRS |
| 990-PF | December 2018 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 45-4616291).
Questions about MCMAHON FOUNDATION
- What is the EIN of MCMAHON FOUNDATION?
- The employer identification number (EIN) of MCMAHON FOUNDATION is 45-4616291.
- Is MCMAHON FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2013.
- Are donations to MCMAHON FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does MCMAHON FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of MCMAHON FOUNDATION due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did MCMAHON FOUNDATION last file with the IRS?
- The latest return in the IRS public files is the 990-PF for the year ended December 2025.
- Who are the officers and directors of MCMAHON FOUNDATION?
- The 990-PF for the year ended December 31, 2025 lists 3 people; 0 received compensation from the organization.
- How much revenue does MCMAHON FOUNDATION have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $5,138, expenses of $18,199 and total assets of $286,843 at year end.
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