Nonprofit · EIN 46-4260360
PETER E SILLS FAMILY FOUNDATION
Tax-exempt · KENTFIELD, CA 94904
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $68,409 | $117,738 | -$49,329 | $691,958 | $3,920 | $688,038 |
| December 31, 2024 | 990-PF | $24,524 | $61,346 | -$36,822 | $741,287 | $3,920 | $737,367 |
| December 31, 2023 | 990-PF | $19,373 | $37,139 | -$17,766 | $774,664 | $475 | $774,189 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Dividends
- $14,393
- Interest
- $4,670
- Net gain from sales of assets
- $49,216
- Other income
- $130
Expenses
- Grants and similar amounts paid
- $110,000
- Compensation of officers, directors and key employees
- $0
- Disbursements for charitable purposes
- $113,345
- Excise tax on investment income
- $893
Balance sheet and other
- Total assets, start of year
- $741,287
- Total assets, end of year
- $691,958
- Total liabilities, end of year
- $3,920
- Net assets, end of year
- $688,038
- Fair market value of assets
- $1,535,442
- Qualifying distributions
- $113,345
- Net investment income
- $68,409
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 |
|---|---|---|---|
| PETER E SILLS 26 MAKIN GRADE, KENTFIELD, CA 94904 | DIRECTOR & CHAIRMAN | 0 | $0 |
| HILARY THAKRAL 435 LOS CERROS DRIVE, GREENBRAE, CA 94904 | VP - DEVELOPMENT | 0 | $0 |
| DAVID S TALLMAN 2121 N CALIFORNIA BLVD SUITE 610, WALNUT CREEK, CA 94596 | DIRECTOR | 0 | $0 |
| DENISE CASTLE 26 MAKIN GRADE, KENTFIELD, CA 94904 | DIRECTOR | 0 | $0 |
| ROBERT TOMASELLO 1120 MAR WEST STREET SUITE D, TIBURON, CA 94920 | DIRECTOR | 0 | $0 |
990-PF for the year ended December 31, 2024: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| PETER E SILLS 26 MAKIN GRADE, KENTFIELD, CA 94904 | DIRECTOR & CHAIRMAN | 0 | $0 |
| HILARY THAKRAL 435 LOS CERROS DRIVE, GREENBRAE, CA 94904 | VP - DEVELOPMENT | 0 | $0 |
| DAVID S TALLMAN 2121 N CALIFORNIA BLVD SUITE 610, WALNUT CREEK, CA 94596 | DIRECTOR | 0 | $0 |
| DENISE CASTLE 26 MAKIN GRADE, KENTFIELD, CA 94904 | DIRECTOR | 0 | $0 |
| ROBERT TOMASELLO 1120 MAR WEST STREET SUITE D, TIBURON, CA 94920 | DIRECTOR | 0 | $0 |
990-PF for the year ended December 31, 2023: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| PETER E SILLS 26 MAKIN GRADE, KENTFIELD, CA 94904 | DIRECTOR & CHAIRMAN | 0 | $0 |
| HILARY THAKRAL 480 LOS CERROS DRIVE, GREENBRAE, CA 94904 | VP - DEVELOPMENT | 0 | $0 |
| DAVID S TALLMAN 2121 N CALIFORNIA BLVD SUITE 610, WALNUT CREEK, CA 94596 | DIRECTOR | 0 | $0 |
| DENISE CASTLE 26 MAKIN GRADE, KENTFIELD, CA 94904 | DIRECTOR | 0 | $0 |
| ROBERT TOMASELLO 1120 MAR WEST STREET SUITE D, TIBURON, CA 94920 | DIRECTOR | 0 | $0 |
Address and contacts
- Address (IRS master file)
- 26 MAKIN GRADE, KENTFIELD, CA 94904-1028
- Signed the 990-PF
- PETER E SILLS, PRESIDENT
- Phone
- (415) 817-9917
- Website
- PESILLSFAMILYFOUNDATION.ORG
- Return prepared by
- NAVOLIO & TALLMAN LLP
California records
California keeps its own records of charities and corporations. Search them by EIN 46-4260360 or by the name PETER E SILLS FAMILY FOUNDATION.
- Attorney General, Registry of Charities and Fundraisers
- Registration status and filed reports (CT-TR-1, RRF-1)
- Secretary of State, bizfile Online
- Corporation status, entity number, agent for service
- Franchise Tax Board
- Entity status letter (state tax exemption, good standing)
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
- 46-4260360
- 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
- 2014
- Accounting year ends
- December
- Files
- Form 990-PF
- Category (NTEE)
- Voluntary health associations and medical disciplines (G20)
- Assets (IRS master file)
- $691,958
- Income (IRS master file)
- $170,412
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $68,409 | $117,738 | $691,958 | IRS |
| 990-PF | December 2024 | $24,524 | $61,346 | $741,287 | IRS |
| 990-PF | December 2023 | $19,373 | $37,139 | $774,664 | 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 46-4260360).
Questions about PETER E SILLS FAMILY FOUNDATION
- What is the EIN of PETER E SILLS FAMILY FOUNDATION?
- The employer identification number (EIN) of PETER E SILLS FAMILY FOUNDATION is 46-4260360.
- Is PETER E SILLS FAMILY FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2014.
- Are donations to PETER E SILLS FAMILY FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does PETER E SILLS FAMILY FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of PETER E SILLS 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 PETER E SILLS 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 PETER E SILLS FAMILY FOUNDATION?
- The 990-PF for the year ended December 31, 2025 lists 5 people; 0 received compensation from the organization.
- How much revenue does PETER E SILLS FAMILY FOUNDATION have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $68,409, expenses of $117,738 and total assets of $691,958 at year end.
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All nonprofits in KENTFIELD · California · Voluntary health associations and medical disciplines