Nonprofit · EIN 30-0510976
THE MORTAR FOUNDATION INC
Tax-exempt · SAUSALITO, CA 94965
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $282,144 | $386,977 | -$104,833 | $3,146,598 | $27,911 | $3,118,687 |
| December 31, 2024 | 990-PF | $189,120 | $338,071 | -$148,951 | $3,116,097 | $25,564 | $3,090,533 |
| December 31, 2023 | 990-PF | $43,459 | $380,943 | -$337,484 | $2,994,862 | $424 | $2,994,438 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Dividends
- $82,789
- Net gain from sales of assets
- $199,355
Expenses
- Grants and similar amounts paid
- $229,757
- Compensation of officers, directors and key employees
- $107,000
- Disbursements for charitable purposes
- $348,008
- Excise tax on investment income
- $3,450
Balance sheet and other
- Total assets, start of year
- $3,116,097
- Total assets, end of year
- $3,146,598
- Total liabilities, end of year
- $27,911
- Net assets, end of year
- $3,118,687
- Fair market value of assets
- $3,146,598
- Qualifying distributions
- $348,008
- Net investment income
- $282,144
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 |
|---|---|---|---|
| Paula Viragh-Williams 250 Currey Lane, Sausalito, CA 94965 | CEO | 35 | $107,000 |
| Amanda Viragh 250 Currey Lane, Sausalito, CA 94965 | Vice President | 0 | $0 |
| Charlotte Williams 250 Currey Lane, Sausalito, CA 94965 | Secretary | 0 | $0 |
| Georgia Williams 250 Currey Lane, Sausalito, CA 94965 | CFO | 0 | $0 |
990-PF for the year ended December 31, 2024: 4 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Paula Viragh-Williams 250 Currey Lane, Sausalito, CA 94965 | CEO | 35 | $107,000 |
| Amanda Viragh 250 Currey Lane, Sausalito, CA 94965 | Vice President | 0 | $0 |
| Charlotte Williams 250 Currey Lane, Sausalito, CA 94965 | Secretary | 0 | $0 |
| Georgia Williams 250 Currey Lane, Sausalito, CA 94965 | CFO | 0 | $0 |
990-PF for the year ended December 31, 2023: 4 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Paula Viragh-Williams 250 Currey Lane, Sausalito, CA 94965 | CEO | 35 | $107,000 |
| Amanda Viragh 250 Currey Lane, Sausalito, CA 94965 | Vice President | 0 | $0 |
| Charlotte Williams 250 Currey Lane, Sausalito, CA 94965 | Secretary | 0 | $0 |
| Georgia Williams 250 Currey Lane, Sausalito, CA 94965 | CFO | 0 | $0 |
Address and contacts
- Address (IRS master file)
- 250 CURREY LN, SAUSALITO, CA 94965-1809
- In care of
- % STEPHEN HATCH
- Signed the 990-PF
- Paula Viragh-Williams, CEO
- Phone
- (415) 260-6331
- Website
- mortarfoundation.org
- Return prepared by
- Young Brophy PC
California records
California keeps its own records of charities and corporations. Search them by EIN 30-0510976 or by the name THE MORTAR FOUNDATION INC.
- 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
- 30-0510976
- 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
- 2009
- Accounting year ends
- December
- Files
- Form 990-PF
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T20)
- Assets (IRS master file)
- $3,146,598
- Income (IRS master file)
- $1,416,665
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $282,144 | $386,977 | $3,146,598 | XML |
| 990-PF | December 2024 | $189,120 | $338,071 | $3,116,097 | XML |
| 990-PF | December 2023 | $43,459 | $380,943 | $2,994,862 | 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 30-0510976).
Questions about THE MORTAR FOUNDATION INC
- What is the EIN of THE MORTAR FOUNDATION INC?
- The employer identification number (EIN) of THE MORTAR FOUNDATION INC is 30-0510976.
- Is THE MORTAR FOUNDATION INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2009.
- Are donations to THE MORTAR FOUNDATION INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does THE MORTAR FOUNDATION INC file?
- Form 990-PF. Private foundations file every year.
- When is the next return of THE MORTAR FOUNDATION INC 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 THE MORTAR FOUNDATION INC 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 THE MORTAR FOUNDATION INC?
- The 990-PF for the year ended December 31, 2025 lists 4 people; 1 received compensation from the organization, the highest $107,000 (Paula Viragh-Williams, CEO).
- How much revenue does THE MORTAR FOUNDATION INC have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $282,144, expenses of $386,977 and total assets of $3,146,598 at year end.
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