Nonprofit · EIN 13-3531984
MAYER FAMILY FOUNDATION
Tax-exempt · GREENWICH, CT 06831
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $381,046 | $376,960 | $4,086 | $3,584,429 | $0 | $3,584,429 |
| December 31, 2024 | 990-PF | $277,208 | $883,210 | -$606,002 | $3,580,343 | $0 | $3,580,343 |
| December 31, 2023 | 990-PF | $1,568,505 | $811,220 | $757,285 | $4,186,345 | $0 | $4,186,345 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $0
- Dividends
- $122,755
- Interest
- $15,111
- Net gain from sales of assets
- $243,180
Expenses
- Grants and similar amounts paid
- $367,729
- Compensation of officers, directors and key employees
- $0
- Disbursements for charitable purposes
- $372,289
- Excise tax on investment income
- $5,232
Balance sheet and other
- Total assets, start of year
- $3,580,343
- Total assets, end of year
- $3,584,429
- Total liabilities, end of year
- $0
- Net assets, end of year
- $3,584,429
- Fair market value of assets
- $9,930,520
- Qualifying distributions
- $372,289
- Net investment income
- $381,046
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 |
|---|---|---|---|
| CHARLES B MAYER JR 10 Creamer Hill Road, GREENWICH, CT 06831 | TRUSTEE | 1 | $0 |
| CHARLES B MAYER 10 Creamer Hill Road, GREENWICH, CT 06831 | TRUSTEE | 1 | $0 |
990-PF for the year ended December 31, 2024: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| CHARLES B MAYER JR 10 Creamer Hill Road, GREENWICH, CT 06831 | TRUSTEE | 1 | $0 |
| CHARLES B MAYER 10 Creamer Hill Road, GREENWICH, CT 06831 | TRUSTEE | 1 | $0 |
990-PF for the year ended December 31, 2023: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| CHARLES B MAYER JR 10 Creamer Hill Road, GREENWICH, CT 06831 | TRUSTEE | 1 | $0 |
| CHARLES B MAYER 10 Creamer Hill Road, GREENWICH, CT 06831 | TRUSTEE | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 10 CREAMER HILL RD, GREENWICH, CT 06831-2743
- In care of
- % EY US LLP
- Signed the 990-PF
- Charles Mayer, TRUSTEE
- Phone
- (212) 773-3000
- Return prepared by
- ERNST & YOUNG US LLP
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
- 13-3531984
- 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
- 1990
- Accounting year ends
- December
- Files
- Form 990-PF
- Assets (IRS master file)
- $3,584,429
- Income (IRS master file)
- $5,489,536
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $381,046 | $376,960 | $3,584,429 | XML |
| 990-PF | December 2024 | $277,208 | $883,210 | $3,580,343 | IRS |
| 990-PF | December 2023 | $1,568,505 | $811,220 | $4,186,345 | XML |
| 990-PF | December 2022 | – | – | – | IRS |
| 990-PF | March 2022 | – | – | – | IRS |
| 990-PF | March 2021 | – | – | – | IRS |
| 990-PF | March 2020 | – | – | – | 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 13-3531984).
Questions about MAYER FAMILY FOUNDATION
- What is the EIN of MAYER FAMILY FOUNDATION?
- The employer identification number (EIN) of MAYER FAMILY FOUNDATION is 13-3531984.
- Is MAYER FAMILY FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1990.
- Are donations to MAYER FAMILY FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does MAYER FAMILY FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of MAYER FAMILY 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 MAYER FAMILY 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 MAYER FAMILY FOUNDATION?
- The 990-PF for the year ended December 31, 2025 lists 2 people; 0 received compensation from the organization.
- How much revenue does MAYER FAMILY FOUNDATION have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $381,046, expenses of $376,960 and total assets of $3,584,429 at year end.
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