Nonprofit · EIN 13-4078024
KLINGENSTEIN-MARTELL FOUNDATION
Tax-exempt · NEW YORK, NY 10006
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $1,595,193 | $4,947,160 | -$3,351,967 | $77,192,464 | $0 | $77,192,463 |
| December 31, 2024 | 990-PF | $96,218,720 | $2,214,292 | $94,004,428 | $80,477,051 | $0 | $80,477,051 |
| December 31, 2023 | 990-PF | $1,091,039 | $1,358,214 | -$267,175 | $8,699,060 | $0 | $8,699,060 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $42,931
- Dividends
- $838,309
- Net gain from sales of assets
- $709,136
- Other income
- $4,817
Expenses
- Grants and similar amounts paid
- $4,368,338
- Compensation of officers, directors and key employees
- $0
- Disbursements for charitable purposes
- $4,493,024
- Excise tax on investment income
- $19,992
Balance sheet and other
- Total assets, start of year
- $80,477,051
- Total assets, end of year
- $77,192,464
- Total liabilities, end of year
- $0
- Net assets, end of year
- $77,192,463
- Fair market value of assets
- $92,125,929
- Qualifying distributions
- $4,493,024
- Net investment income
- $1,547,445
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 |
|---|---|---|---|
| SARAH K MARTELL 61 BROADWAY 1601, NEW YORK, NY 10006 | PRESIDENT, TRUSTEE | 0 | $0 |
| LAUREN BRESLOW 61 BROADWAY 1601, NEW YORK, NY 10006 | TREASURER & SECRETARY | 0 | $0 |
990-PF for the year ended December 31, 2024: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| SARAH K MARTELL 61 BROADWAY 1601, NEW YORK, NY 10006 | PRESIDENT, TRUSTEE | 0 | $0 |
| LAUREN BRESLOW 61 BROADWAY 1601, NEW YORK, NY 10006 | TREASURER & SECRETARY | 0 | $0 |
990-PF for the year ended December 31, 2023: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| SARAH K MARTELL C/0 HM 61 BROADWAY, NEW YORK, NY 10006 | PRESIDENT, TRUSTEE | 0 | $0 |
| LAUREN BRESLOW C/0 HM 61 BROADWAY, NEW YORK, NY 10006 | TREASURER & SECRETARY | 0 | $0 |
Address and contacts
- Address (IRS master file)
- 61 BROADWAY RM 1601, NEW YORK, NY 10006-2756
- In care of
- % JANET L MULLIGAN
- Signed the 990-PF
- SARAH MARTELL, DIRECTOR
- Return prepared by
- HOFFMAN MULLIGAN CPAS 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
- 13-4078024
- 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
- 1999
- Accounting year ends
- December
- Files
- Form 990-PF
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T12)
- Assets (IRS master file)
- $77,192,464
- Income (IRS master file)
- $3,797,543
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $1,595,193 | $4,947,160 | $77,192,464 | IRS |
| 990-PF | December 2024 | $96,218,720 | $2,214,292 | $80,477,051 | XML |
| 990-PF | December 2023 | $1,091,039 | $1,358,214 | $8,699,060 | 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 13-4078024).
Questions about KLINGENSTEIN-MARTELL FOUNDATION
- What is the EIN of KLINGENSTEIN-MARTELL FOUNDATION?
- The employer identification number (EIN) of KLINGENSTEIN-MARTELL FOUNDATION is 13-4078024.
- Is KLINGENSTEIN-MARTELL FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1999.
- Are donations to KLINGENSTEIN-MARTELL FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does KLINGENSTEIN-MARTELL FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of KLINGENSTEIN-MARTELL 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 KLINGENSTEIN-MARTELL 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 KLINGENSTEIN-MARTELL FOUNDATION?
- The 990-PF for the year ended December 31, 2025 lists 2 people; 0 received compensation from the organization.
- How much revenue does KLINGENSTEIN-MARTELL FOUNDATION have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $1,595,193, expenses of $4,947,160 and total assets of $77,192,464 at year end.
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