Nonprofit · EIN 20-4839728
AMOS AND RUTH WILNAI FOUNDATION
Tax-exempt · PALO ALTO, CA 94303
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $748,837 | $1,117,133 | -$368,296 | $26,156,054 | $10,740 | $26,145,314 |
| December 31, 2024 | 990-PF | $681,112 | $847,438 | -$166,326 | $23,072,979 | $2,418 | $23,070,561 |
| December 31, 2023 | 990-PF | $649,025 | $843,665 | -$194,640 | $19,043,439 | $2,000 | $19,041,439 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Dividends
- $189,829
- Interest
- $80
- Net gain from sales of assets
- $558,928
Expenses
- Grants and similar amounts paid
- $1,099,000
- Compensation of officers, directors and key employees
- $0
- Disbursements for charitable purposes
- $1,099,000
- Excise tax on investment income
- $10,266
Balance sheet and other
- Total assets, start of year
- $23,072,979
- Total assets, end of year
- $26,156,054
- Total liabilities, end of year
- $10,740
- Net assets, end of year
- $26,145,314
- Fair market value of assets
- $26,156,054
- Qualifying distributions
- $1,099,000
- Net investment income
- $748,837
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 |
|---|---|---|---|
| AMOS WILNAI 885 NORTHAMPTON DRIVE, PALO ALTO, CA 94303 | PRESIDENT/ASST. TREASURER | 1 | $0 |
| RUTH WILNAI 885 NORTHAMPTON DRIVE, PALO ALTO, CA 94303 | VP/SECRETARY/TREASURER | 1 | $0 |
| SIGAL WILNAI-TZOORE 885 NORTHAMPTON DRIVE, PALO ALTO, CA 94303 | VICE PRESIDENT | 1 | $0 |
| YAEL WILNAI-ZISKIND 885 NORTHAMPTON DRIVE, PALO ALTO, CA 94303 | VICE PRESIDENT | 1 | $0 |
| NITZAN WILNAI 885 NORTHAMPTON DRIVE, PALO ALTO, CA 94303 | VICE PRESIDENT | 1 | $0 |
990-PF for the year ended December 31, 2024: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| AMOS WILNAI 885 NORTHAMPTON DRIVE, PALO ALTO, CA 94303 | PRESIDENT/ASST. TREASURER | 1 | $0 |
| RUTH WILNAI 885 NORTHAMPTON DRIVE, PALO ALTO, CA 94303 | VP/SECRETARY/TREASURER | 1 | $0 |
| SIGAL WILNAI-TZOORE 885 NORTHAMPTON DRIVE, PALO ALTO, CA 94303 | VICE PRESIDENT | 1 | $0 |
| YAEL WILNAI-ZISKIND 885 NORTHAMPTON DRIVE, PALO ALTO, CA 94303 | VICE PRESIDENT | 1 | $0 |
| NITZAN WILNAI 885 NORTHAMPTON DRIVE, PALO ALTO, CA 94303 | VICE PRESIDENT | 1 | $0 |
990-PF for the year ended December 31, 2023: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| AMOS WILNAI 885 NORTHAMPTON DRIVE, PALO ALTO, CA 94303 | PRESIDENT/ASST. TREASURER | 1 | $0 |
| RUTH WILNAI 885 NORTHAMPTON DRIVE, PALO ALTO, CA 94303 | VP/SECRETARY/TREASURER | 1 | $0 |
| SIGAL WILNAI-TZOORE 885 NORTHAMPTON DRIVE, PALO ALTO, CA 94303 | VICE PRESIDENT | 1 | $0 |
| YAEL WILNAI-ZISKIND 885 NORTHAMPTON DRIVE, PALO ALTO, CA 94303 | VICE PRESIDENT | 1 | $0 |
| NITZAN WILNAI 885 NORTHAMPTON DRIVE, PALO ALTO, CA 94303 | VICE PRESIDENT | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 885 NORTHAMPTON DR, PALO ALTO, CA 94303-3434
- In care of
- % AMOS WILNAI
- Signed the 990-PF
- AMOS WILNAI, PRESIDENT/ASST. TREASURER
- Phone
- (650) 465-3130
- Return prepared by
- BAKER TILLY ADVISORY GROUP LP
California records
California keeps its own records of charities and corporations. Search them by EIN 20-4839728 or by the name AMOS AND RUTH WILNAI 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
- 20-4839728
- 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
- 2006
- Accounting year ends
- December
- Files
- Form 990-PF
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T12)
- Assets (IRS master file)
- $26,156,054
- Income (IRS master file)
- $1,104,599
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $748,837 | $1,117,133 | $26,156,054 | XML |
| 990-PF | December 2024 | $681,112 | $847,438 | $23,072,979 | XML |
| 990-PF | December 2023 | $649,025 | $843,665 | $19,043,439 | 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 20-4839728).
Questions about AMOS AND RUTH WILNAI FOUNDATION
- What is the EIN of AMOS AND RUTH WILNAI FOUNDATION?
- The employer identification number (EIN) of AMOS AND RUTH WILNAI FOUNDATION is 20-4839728.
- Is AMOS AND RUTH WILNAI FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2006.
- Are donations to AMOS AND RUTH WILNAI FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does AMOS AND RUTH WILNAI FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of AMOS AND RUTH WILNAI 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 AMOS AND RUTH WILNAI 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 AMOS AND RUTH WILNAI FOUNDATION?
- The 990-PF for the year ended December 31, 2025 lists 5 people; 0 received compensation from the organization.
- How much revenue does AMOS AND RUTH WILNAI FOUNDATION have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $748,837, expenses of $1,117,133 and total assets of $26,156,054 at year end.
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