Nonprofit · EIN 38-3317749
MARILYN MASON FOUNDATION
Tax-exempt · LINCOLN, MA 01773
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $8,986 | $27,121 | -$18,135 | $30,820 | $0 | $30,820 |
| December 31, 2024 | 990-PF | $32,108 | $20,953 | $11,155 | $48,955 | $0 | $48,955 |
| December 31, 2023 | 990-PF | $22,617 | $18,820 | $3,797 | $37,800 | $0 | $37,800 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Dividends
- $4,117
- Net gain from sales of assets
- $4,869
Expenses
- Grants and similar amounts paid
- $20,012
- Compensation of officers, directors and key employees
- $4,000
- Disbursements for charitable purposes
- $20,012
- Excise tax on investment income
- $26
Balance sheet and other
- Total assets, start of year
- $48,955
- Total assets, end of year
- $30,820
- Total liabilities, end of year
- $0
- Net assets, end of year
- $30,820
- Fair market value of assets
- $424,145
- Qualifying distributions
- $20,012
- Net investment income
- $8,986
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 |
|---|---|---|---|
| MERRITT C BROWN 79 OLD SUDBURY RD, LINCOLN, MA 01773 | DIRECTOR | 1 | $2,000 |
| EDWARD A BROWN 2108 SCOTTWOOD, ANN ARBOR, MI 481044444 | DIRECTOR | 1 | $2,000 |
990-PF for the year ended December 31, 2024: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| MERRITT C BROWN 79 OLD SUDBURY RD, LINCOLN, MA 01773 | DIRECTOR | 1 | $2,000 |
| EDWARD A BROWN 2108 SCOTTWOOD, ANN ARBOR, MI 481044444 | DIRECTOR | 1 | $2,000 |
990-PF for the year ended December 31, 2023: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| MERRITT C BROWN 79 OLD SUDBURY RD, LINCOLN, MA 01773 | DIRECTOR | 1 | $2,000 |
| EDWARD A BROWN 2108 SCOTTWOOD, ANN ARBOR, MI 481044444 | DIRECTOR | 1 | $2,000 |
Address and contacts
- Address (IRS master file)
- 79 OLD SUDBURY RD, LINCOLN, MA 01773-4806
- In care of
- % MERRITT C BROWN
- Signed the 990-PF
- MERRITT C BROWN, DIRECTOR
- Return prepared by
- PEMBERTON TAX & ACCOUNTING
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
- 38-3317749
- 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
- 1997
- Accounting year ends
- December
- Files
- Form 990-PF
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T20Z)
- Assets (IRS master file)
- $30,820
- Income (IRS master file)
- $9,137
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $8,986 | $27,121 | $30,820 | IRS |
| 990-PF | December 2024 | $32,108 | $20,953 | $48,955 | IRS |
| 990-PF | December 2023 | $22,617 | $18,820 | $37,800 | 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 38-3317749).
Questions about MARILYN MASON FOUNDATION
- What is the EIN of MARILYN MASON FOUNDATION?
- The employer identification number (EIN) of MARILYN MASON FOUNDATION is 38-3317749.
- Is MARILYN MASON FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1997.
- Are donations to MARILYN MASON FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does MARILYN MASON FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of MARILYN MASON 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 MARILYN MASON 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 MARILYN MASON FOUNDATION?
- The 990-PF for the year ended December 31, 2025 lists 2 people; 2 received compensation from the organization, the highest $2,000 (MERRITT C BROWN, DIRECTOR).
- How much revenue does MARILYN MASON FOUNDATION have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $8,986, expenses of $27,121 and total assets of $30,820 at year end.
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