Nonprofit · EIN 26-1581894
VIVAN & MARK TIEN FAMILY FOUNDATION
Tax-exempt · SAN JOSE, CA 95132
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| November 30, 2025 | 990-PF | $56,405 | $47,170 | $9,235 | $633,617 | $66,915 | $566,702 |
| November 30, 2024 | 990-PF | $47,055 | $40,302 | $6,753 | $596,124 | $38,657 | $557,467 |
| November 30, 2023 | 990-PF | $49,327 | $35,634 | $13,693 | $568,024 | $17,310 | $550,714 |
Financial details: 990-PF for the year ended November 30, 2025
Revenue
- Contributions, gifts and grants
- $30,000
- Dividends
- $11,101
- Interest
- $225
- Net gain from sales of assets
- $15,079
Expenses
- Grants and similar amounts paid
- $10,000
- Disbursements for charitable purposes
- $40,222
- Excise tax on investment income
- $322
Balance sheet and other
- Total assets, start of year
- $596,124
- Total assets, end of year
- $633,617
- Total liabilities, end of year
- $66,915
- Net assets, end of year
- $566,702
- Fair market value of assets
- $678,306
- Qualifying distributions
- $40,222
- Net investment income
- $23,194
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 November 30, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| MARK A TIEN 1091 MAXEY DR, SAN JOSE, CA 95132 | CEO | 2 | $0 |
| VIVIAN TIEN 1091 MAXEY DR, SAN JOSE, CA 95132 | CFO/SEC | 2 | $0 |
990-PF for the year ended November 30, 2024: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| MARK A TIEN 1091 MAXEY DR, SAN JOSE, CA 95132 | CEO | 2 | $0 |
| VIVIAN TIEN 1091 MAXEY DR, SAN JOSE, CA 95132 | CFO/SEC | 2 | $0 |
990-PF for the year ended November 30, 2023: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| MARK A TIEN 1091 MAXEY DR, SAN JOSE, CA 95132 | CEO | 2 | $0 |
| VIVIAN TIEN 1091 MAXEY DR, SAN JOSE, CA 95132 | CFO/SEC | 2 | $0 |
Address and contacts
- Address (IRS master file)
- 1091 MAXEY DR, SAN JOSE, CA 95132-2868
- In care of
- % MARK AI-MIN TIEN
- Signed the 990-PF
- VIVIAN TIEN, CFO/SEC
- Phone
- (408) 729-9645
- Return prepared by
- H & H CPAS
California records
California keeps its own records of charities and corporations. Search them by EIN 26-1581894 or by the name VIVAN & MARK TIEN 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 November, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2024 | November 30, 2025 | April 15, 2026 | 990-PF on file |
| 2023 | November 30, 2024 | April 15, 2025 | 990-PF on file |
| 2022 | November 30, 2023 | April 15, 2024 | 990-PF on file |
IRS record
- EIN
- 26-1581894
- 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
- 2008
- Accounting year ends
- November
- Files
- Form 990-PF
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T20)
- Assets (IRS master file)
- $633,617
- Income (IRS master file)
- $118,734
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | November 2025 | $56,405 | $47,170 | $633,617 | IRS |
| 990-PF | November 2024 | $47,055 | $40,302 | $596,124 | XML |
| 990-PF | November 2023 | $49,327 | $35,634 | $568,024 | XML |
| 990-PF | November 2022 | – | – | – | IRS |
| 990-PF | November 2021 | – | – | – | IRS |
| 990-PF | November 2020 | – | – | – | IRS |
| 990-PF | November 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 26-1581894).
Questions about VIVAN & MARK TIEN FAMILY FOUNDATION
- What is the EIN of VIVAN & MARK TIEN FAMILY FOUNDATION?
- The employer identification number (EIN) of VIVAN & MARK TIEN FAMILY FOUNDATION is 26-1581894.
- Is VIVAN & MARK TIEN FAMILY FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2008.
- Are donations to VIVAN & MARK TIEN FAMILY FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does VIVAN & MARK TIEN FAMILY FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of VIVAN & MARK TIEN FAMILY FOUNDATION due?
- The return for tax year 2025 (the year ending November 30, 2026) is due April 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did VIVAN & MARK TIEN FAMILY FOUNDATION last file with the IRS?
- The latest return in the IRS public files is the 990-PF for the year ended November 2025.
- Who are the officers and directors of VIVAN & MARK TIEN FAMILY FOUNDATION?
- The 990-PF for the year ended November 30, 2025 lists 2 people; 0 received compensation from the organization.
- How much revenue does VIVAN & MARK TIEN FAMILY FOUNDATION have?
- On its 990-PF for the year ended November 30, 2025 it reported revenue of $56,405, expenses of $47,170 and total assets of $633,617 at year end.
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