Nonprofit · EIN 45-3781620
THE GOLDEN STATE THINK TANK FOUNDATION INC
Tax-exempt · DUBLIN, CA 94568
Address and contacts
- Address (IRS master file)
- 7080 DONLON WAY STE 126, DUBLIN, CA 94568-2789
- In care of
- % STEVE COSTELLO
- Mailing address (990-N for 2024)
- 7080 Donlon Way Ste 126, Dublin CA 94568
- Principal officer (990-N for 2024)
- Gary Steve Costello, 7080 Donlon Way Ste 126, Dublin CA 94568
California records
California keeps its own records of charities and corporations. Search them by EIN 45-3781620 or by the name THE GOLDEN STATE THINK TANK 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-N (e-Postcard). Gross receipts normally $50,000 or less. Its accounting year ends in September, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | September 30, 2026 | February 16, 2027 | Not due yet |
| 2024 | September 30, 2025 | February 17, 2026 | 990-N on file |
| 2023 | September 30, 2024 | February 18, 2025 | 990-N on file |
IRS record
- EIN
- 45-3781620
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (509(a)(2))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2012
- Accounting year ends
- September
- Files
- Form 990-N (e-Postcard)
- Category (NTEE)
- Arts, culture and humanities (A23)
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-N for 2024 Officer: Gary Steve Costello | September 30, 2025 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2023 Officer: gary steve costello | September 30, 2024 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2022 Officer: steve costello | September 30, 2023 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2021 Officer: steve costello | September 30, 2022 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2020 Officer: STEVE COSTELLO | September 30, 2021 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2018 Officer: STEVE COSTELLO | September 30, 2019 | ≤ $50,000 receipts | – | – | e-Postcard |
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 45-3781620).
Questions about THE GOLDEN STATE THINK TANK FOUNDATION INC
- What is the EIN of THE GOLDEN STATE THINK TANK FOUNDATION INC?
- The employer identification number (EIN) of THE GOLDEN STATE THINK TANK FOUNDATION INC is 45-3781620.
- Is THE GOLDEN STATE THINK TANK FOUNDATION INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2012.
- Are donations to THE GOLDEN STATE THINK TANK FOUNDATION INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does THE GOLDEN STATE THINK TANK FOUNDATION INC file?
- Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
- When is the next return of THE GOLDEN STATE THINK TANK FOUNDATION INC due?
- The return for tax year 2025 (the year ending September 30, 2026) is due February 16, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did THE GOLDEN STATE THINK TANK FOUNDATION INC last file with the IRS?
- The latest return in the IRS public files is the 990-N for 2024 for the year ended September 30, 2025.
- Who is the principal officer of THE GOLDEN STATE THINK TANK FOUNDATION INC?
- The 990-N for 2024 names Gary Steve Costello.
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All nonprofits in DUBLIN · California · Arts, culture and humanities