Nonprofit · EIN 94-3381136
THOMAS & MARGARET TAN FAMILY FOUNDATION
Tax-exempt · HAMILTON, NY 13346
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $86,781 | $57,393 | $29,388 | $734,035 | $0 | $734,035 |
| December 31, 2024 | 990-PF | $76,746 | $48,675 | $28,071 | $704,647 | $12,500 | $692,147 |
| December 31, 2023 | 990-PF | $37,826 | $50,299 | -$12,473 | $663,999 | $700 | $663,299 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $47,684
- Dividends
- $22,567
- Interest
- $7
- Net gain from sales of assets
- $16,523
Expenses
- Grants and similar amounts paid
- $47,200
- Disbursements for charitable purposes
- $49,825
- Excise tax on investment income
- $438
Balance sheet and other
- Total assets, start of year
- $704,647
- Total assets, end of year
- $734,035
- Total liabilities, end of year
- $0
- Net assets, end of year
- $734,035
- Fair market value of assets
- $1,184,761
- Qualifying distributions
- $49,825
- Net investment income
- $39,097
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 |
|---|---|---|---|
| ERNEST P TAN PO BOX 355, HAMILTON, NY 13346 | President | 0 | $0 |
| CHRISTINA L TAN PO BOX 355, HAMILTON, NY 13346 | CFO | 0 | $0 |
| CATHY LING 10 CRYSTAL SPRINGS ROAD 2311, SAN MATEO, CA 94402 | Secretary | 0 | $0 |
990-PF for the year ended December 31, 2024: 3 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| ERNEST P TAN 2140 FOREST VIEW AVENUE, HILLSBOROUGH, CA 940106120 | President | 0 | $0 |
| CHRISTINA L TAN 2140 FOREST VIEW AVENUE, HILLSBOROUGH, CA 940106120 | CFO | 0 | $0 |
| CATHY LING 10 CRYSTAL SPRINGS ROAD 2311, SAN MATEO, CA 94402 | Secretary | 0 | $0 |
990-PF for the year ended December 31, 2023: 3 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| ERNEST P TAN 2140 FOREST VIEW AVENUE, HILLSBOROUGH, CA 940106120 | President | 0 | $0 |
| CHRISTINA L TAN 2140 FOREST VIEW AVENUE, HILLSBOROUGH, CA 940106120 | CFO | 0 | $0 |
| CATHY LING 10 CRYSTAL SPRINGS ROAD 2311, SAN MATEO, CA 94402 | Secretary | 0 | $0 |
Address and contacts
- Address (IRS master file)
- PO BOX 355, HAMILTON, NY 13346-0355
- In care of
- % MARGARET J TAN
- Signed the 990-PF
- ERNEST P TAN, President
- Phone
- (650) 703-3484
- Return prepared by
- KOKJER PIEROTTI MAIOCCO &DUCK
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
- 94-3381136
- 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
- 2001
- Accounting year ends
- December
- Files
- Form 990-PF
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T22)
- Assets (IRS master file)
- $734,035
- Income (IRS master file)
- $86,781
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $86,781 | $57,393 | $734,035 | IRS |
| 990-PF | December 2024 | $76,746 | $48,675 | $704,647 | XML |
| 990-PF | December 2023 | $37,826 | $50,299 | $663,999 | XML |
| 990-PF | December 2022 | – | – | – | IRS |
| 990-PF | December 2021 | – | – | – | IRS |
| 990-PF | December 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 94-3381136).
Questions about THOMAS & MARGARET TAN FAMILY FOUNDATION
- What is the EIN of THOMAS & MARGARET TAN FAMILY FOUNDATION?
- The employer identification number (EIN) of THOMAS & MARGARET TAN FAMILY FOUNDATION is 94-3381136.
- Is THOMAS & MARGARET TAN FAMILY FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2001.
- Are donations to THOMAS & MARGARET TAN FAMILY FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does THOMAS & MARGARET TAN FAMILY FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of THOMAS & MARGARET TAN 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 THOMAS & MARGARET TAN 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 THOMAS & MARGARET TAN FAMILY FOUNDATION?
- The 990-PF for the year ended December 31, 2025 lists 3 people; 0 received compensation from the organization.
- How much revenue does THOMAS & MARGARET TAN FAMILY FOUNDATION have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $86,781, expenses of $57,393 and total assets of $734,035 at year end.
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