Nonprofit · EIN 13-6075586
LOEWENBERG FOUNDATION INC
Tax-exempt · NEW YORK, NY 10022
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| October 31, 2025 | 990-PF | $4,973,446 | $3,302,351 | $1,671,095 | $74,675,167 | $0 | $74,675,167 |
Financial details: 990-PF for the year ended October 31, 2025
Revenue
- Contributions, gifts and grants
- $793,384
- Dividends
- $1,882,554
- Interest
- $107,522
- Net gain from sales of assets
- $1,893,657
- Other income
- $296,329
Expenses
- Grants and similar amounts paid
- $3,000,000
- Compensation of officers, directors and key employees
- $0
- Disbursements for charitable purposes
- $3,001,500
- Excise tax on investment income
- $54,413
Balance sheet and other
- Total assets, start of year
- $73,004,072
- Total assets, end of year
- $74,675,167
- Total liabilities, end of year
- $0
- Net assets, end of year
- $74,675,167
- Fair market value of assets
- $94,453,227
- Qualifying distributions
- $3,001,500
- Net investment income
- $4,180,062
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 October 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| DIANA LOEWENBERG 1400 FIFTH AVENUE 7B, NEW YORK, NY 10026 | TREASURER/DIRECTOR | 1 | $0 |
| ELIZABETH LOEWENBERG 34 UNION STREET, CAMBRIDGE, MA 02141 | PRESIDENT/SECR/DIR | 1 | $0 |
| JONATHAN TANNENHAUSER 34 UNION STREET, CAMBRIDGE, MA 02141 | DIRECTOR | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 800 THIRD AVENUE FRNT A 1348, NEW YORK, NY 10022-7649
- In care of
- % DIANA LOEWENBERG
- Signed the 990-PF
- ELIZABETH LOEWENBERG, PRESIDENT
- Phone
- (917) 699-0100
- Return prepared by
- CBIZ ADVISORS LLC
What it must file and when
IRS records say it files Form 990-PF. Private foundations file every year. Its accounting year ends in October, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2024 | October 31, 2025 | March 16, 2026 | 990-PF on file |
| 2023 | October 31, 2024 | March 17, 2025 | 990-PF on file |
| 2022 | October 31, 2023 | March 15, 2024 | 990-PF on file |
IRS record
- EIN
- 13-6075586
- 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
- 1961
- Accounting year ends
- October
- Files
- Form 990-PF
- Assets (IRS master file)
- $74,675,167
- Income (IRS master file)
- $20,069,725
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | October 2025 | – | – | – | IRS |
| 990-T | October 2025 | – | – | – | IRS |
| 990-PF | October 2024 | – | – | – | IRS |
| 990-T | October 2024 | – | – | – | IRS |
| 990-PF | October 2023 | $30,475,475 | $1,175,945 | $45,853,131 | IRS |
| 990-T | October 2023 | – | – | – | IRS |
| 990-PF | October 2022 | – | – | – | IRS |
| 990-T | October 2022 | – | – | – | IRS |
| 990-PF | October 2021 | – | – | – | IRS |
| 990-T | October 2021 | – | – | – | IRS |
| 990-PF | October 2020 | – | – | – | IRS |
| 990-PF | October 2018 | – | – | – | IRS |
990-N: the IRS publishes only the latest e-Postcard per organization; earlier years appear here as 990.tax collects the monthly files. 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.
Questions about LOEWENBERG FOUNDATION INC
- What is the EIN of LOEWENBERG FOUNDATION INC?
- The employer identification number (EIN) of LOEWENBERG FOUNDATION INC is 13-6075586.
- Is LOEWENBERG FOUNDATION INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1961.
- Are donations to LOEWENBERG FOUNDATION INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does LOEWENBERG FOUNDATION INC file?
- Form 990-PF. Private foundations file every year.
- When is the next return of LOEWENBERG FOUNDATION INC due?
- The return for tax year 2025 (the year ending October 31, 2026) is due March 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did LOEWENBERG FOUNDATION INC last file with the IRS?
- The latest return in the IRS public files is the 990-PF for the year ended October 2025.
- Who are the officers and directors of LOEWENBERG FOUNDATION INC?
- The 990-PF for the year ended October 31, 2025 lists 3 people; 0 received compensation from the organization.
- How much revenue does LOEWENBERG FOUNDATION INC have?
- On its 990-PF for the year ended October 31, 2025 it reported revenue of $4,973,446, expenses of $3,302,351 and total assets of $74,675,167 at year end.
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