Nonprofit · EIN 06-1720127
SHAMROCK FOUNDATION
Tax-exempt · AUSTIN, TX 78731
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $2,409,956 | $560,171 | $1,849,785 | $7,348,531 | $0 | $7,348,531 |
| December 31, 2024 | 990-PF | $2,287,002 | $347,238 | $1,939,764 | $6,507,315 | $0 | $6,507,315 |
| December 31, 2023 | 990-PF | $2,194,386 | $528,729 | $1,665,657 | $5,589,716 | $10,000 | $5,579,716 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $1,008,569
- Dividends
- $298,230
- Interest
- $113
- Net gain from sales of assets
- $1,103,044
Expenses
- Grants and similar amounts paid
- $506,995
- Compensation of officers, directors and key employees
- $0
- Disbursements for charitable purposes
- $508,947
- Excise tax on investment income
- $19,023
Balance sheet and other
- Total assets, start of year
- $6,507,315
- Total assets, end of year
- $7,348,531
- Total liabilities, end of year
- $0
- Net assets, end of year
- $7,348,531
- Fair market value of assets
- $10,666,817
- Qualifying distributions
- $508,947
- Net investment income
- $1,401,387
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 |
|---|---|---|---|
| SHELLEY M MATTINGLY 5405 HIGHLAND CREST DR, AUSTIN, TX 78731 | PRESIDENT | 5 | $0 |
| CATHARINE O EDWARDSON 616 EAST VALERIO ST, SANTA BARBARA, CA 93103 | DIRECTOR | 1 | $0 |
| JOHN J MATTINGLY 5405 HIGHLAND CREST DR, AUSTIN, TX 78731 | DIRECTOR | 1 | $0 |
990-PF for the year ended December 31, 2024: 3 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| SHELLEY M MATTINGLY 5405 HIGHLAND CREST DR, AUSTIN, TX 78731 | PRESIDENT | 5 | $0 |
| CATHARINE O EDWARDSON 616 EAST VALERIO ST, SANTA BARBARA, CA 93103 | DIRECTOR | 1 | $0 |
| JOHN J MATTINGLY 5405 HIGHLAND CREST DR, AUSTIN, TX 78731 | DIRECTOR | 1 | $0 |
990-PF for the year ended December 31, 2023: 3 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| SHELLEY M MATTINGLY 5405 HIGHLAND CREST DR, AUSTIN, TX 78731 | PRESIDENT | 5 | $0 |
| CATHARINE O EDWARDSON 616 EAST VALERIO ST, SANTA BARBARA, CA 93103 | DIRECTOR | 1 | $0 |
| JOHN J MATTINGLY 5405 HIGHLAND CREST DR, AUSTIN, TX 78731 | DIRECTOR | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 5405 HIGHLAND CREST DR, AUSTIN, TX 78731-4805
- In care of
- % SHELLEY M MATTINGLY
- Signed the 990-PF
- SHELLEY M MATTINGLY, PRESIDENT
- Phone
- (917) 428-7646
- Website
- WWW.SHAMROCKFOUND.ORG
- Return prepared by
- MEADOR & JONES LLP
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
- 06-1720127
- 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
- 2004
- Accounting year ends
- December
- Files
- Form 990-PF
- Assets (IRS master file)
- $7,348,531
- Income (IRS master file)
- $2,842,540
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $2,409,956 | $560,171 | $7,348,531 | IRS |
| 990-PF | December 2024 | $2,287,002 | $347,238 | $6,507,315 | IRS |
| 990-PF | December 2023 | $2,194,386 | $528,729 | $5,589,716 | 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 06-1720127).
Questions about SHAMROCK FOUNDATION
- What is the EIN of SHAMROCK FOUNDATION?
- The employer identification number (EIN) of SHAMROCK FOUNDATION is 06-1720127.
- Is SHAMROCK FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2004.
- Are donations to SHAMROCK FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does SHAMROCK FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of SHAMROCK 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 SHAMROCK 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 SHAMROCK FOUNDATION?
- The 990-PF for the year ended December 31, 2025 lists 3 people; 0 received compensation from the organization.
- How much revenue does SHAMROCK FOUNDATION have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $2,409,956, expenses of $560,171 and total assets of $7,348,531 at year end.
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