Nonprofit · EIN 91-1117863
THE HARRY AND MASIE MASTO FOUNDATION
Tax-exempt · SAN FRANCISCO, CA 94114
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2024 | 990-PF | $242,382 | $1,006,713 | -$764,331 | $8,383,899 | $284,192 | $8,099,707 |
| December 31, 2023 | 990-PF | $496,288 | $974,175 | -$477,887 | $8,107,247 | $221,154 | $7,886,093 |
Financial details: 990-PF for the year ended December 31, 2024
Revenue
- Contributions, gifts and grants
- $0
- Dividends
- $134,771
- Interest
- $9,895
- Net gain from sales of assets
- $97,716
Expenses
- Grants and similar amounts paid
- $596,522
- Compensation of officers, directors and key employees
- $191,000
- Disbursements for charitable purposes
- $859,253
- Excise tax on investment income
- $2,349
Balance sheet and other
- Total assets, start of year
- $8,107,247
- Total assets, end of year
- $8,383,899
- Total liabilities, end of year
- $284,192
- Net assets, end of year
- $8,099,707
- Fair market value of assets
- $8,383,899
- Qualifying distributions
- $859,253
- Net investment income
- $242,382
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, 2024, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Allison Sparks 58 COLLINGWOOD STREET, san francisco, CA 94114 | Executive Dir | 35 | $191,000 |
| Sherrie Sparks 58 COLLINGWOOD STREET, san francisco, CA 94114 | Pres, Trustee | 2 | $0 |
| Tiffany Sparks 58 COLLINGWOOD STREET, san francisco, CA 94114 | Trustee | 1 | $0 |
990-PF for the year ended December 31, 2023: 3 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| ALLISON J SPARKS 520 PIKE STREET 1415, SEATTLE, WA 98101 | EXECUTIVE DIRECTOR | 35 | $165,000 |
| SHERRIE J SPARKS 520 PIKE STREET 1415, SEATTLE, WA 98101 | TRUSTEE/PRESIDENT | 4 | $0 |
| TIFFANY J SPARKS-KEENEY 520 PIKE STREET 1415, SEATTLE, WA 98101 | TRUSTEE | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 58 COLLINGWOOD STREET 3, SAN FRANCISCO, CA 94114-1907
- In care of
- % THE FOUNDATION
- Signed the 990-PF
- Allison Sparks, Executive Director
- Phone
- (530) 699-0337
- Website
- www.mastofoundation.org
- Return prepared by
- Foundation Source
California records
California keeps its own records of charities and corporations. Search them by EIN 91-1117863 or by the name THE HARRY AND MASIE MASTO 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 | Not 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
- 91-1117863
- 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
- 1981
- Accounting year ends
- December
- Files
- Form 990-PF
- Assets (IRS master file)
- $8,383,899
- Income (IRS master file)
- $1,253,986
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2024 | $242,382 | $1,006,713 | $8,383,899 | XML |
| 990-PF | December 2023 | $496,288 | $974,175 | $8,107,247 | XML |
| 990-PF | December 2022 | – | – | – | IRS |
| 990-PF | December 2021 | – | – | – | IRS |
| 990-PF | December 2020 | – | – | – | IRS |
| 990-PF | September 2019 | – | – | – | IRS |
| 990-PF | September 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 91-1117863).
Questions about THE HARRY AND MASIE MASTO FOUNDATION
- What is the EIN of THE HARRY AND MASIE MASTO FOUNDATION?
- The employer identification number (EIN) of THE HARRY AND MASIE MASTO FOUNDATION is 91-1117863.
- Is THE HARRY AND MASIE MASTO FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1981.
- Are donations to THE HARRY AND MASIE MASTO FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does THE HARRY AND MASIE MASTO FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of THE HARRY AND MASIE MASTO FOUNDATION due?
- The return for tax year 2025 (the year ending December 31, 2025) is due May 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did THE HARRY AND MASIE MASTO FOUNDATION last file with the IRS?
- The latest return in the IRS public files is the 990-PF for the year ended December 2024.
- Who are the officers and directors of THE HARRY AND MASIE MASTO FOUNDATION?
- The 990-PF for the year ended December 31, 2024 lists 3 people; 1 received compensation from the organization, the highest $191,000 (Allison Sparks, Executive Dir).
- How much revenue does THE HARRY AND MASIE MASTO FOUNDATION have?
- On its 990-PF for the year ended December 31, 2024 it reported revenue of $242,382, expenses of $1,006,713 and total assets of $8,383,899 at year end.
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