Nonprofit · EIN 77-0408400
SIERRA ECONOMIC AND SCIENCE FOUNDAT ION
Tax-exempt (reinstated) · GRASS VALLEY, CA 95945
Address and contacts
- Address (IRS master file)
- 133 HORIZON CIR, GRASS VALLEY, CA 95945-9701
- In care of
- % GIL
- Mailing address (990-N for 2024)
- PO Box 2178, Nevada City CA 95959
- Principal officer (990-N for 2024)
- Carolyn McDaniel, 11671 Cathy Drive, Grass Valley CA 95949
- Website
- sesfoundation.org
California records
California keeps its own records of charities and corporations. Search them by EIN 77-0408400 or by the name SIERRA ECONOMIC AND SCIENCE FOUNDAT ION.
- 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 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 | Check at the IRS |
| 2023 | December 31, 2023 | May 15, 2024 | Check at the IRS |
IRS record
- EIN
- 77-0408400
- 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
- 2026
- Accounting year ends
- December
- Files
- Form 990-N (e-Postcard)
- Category (NTEE)
- Environment (C99)
Revocation and reinstatement
- Exemption revoked
- November 15, 2025
- Posted by the IRS
- March 10, 2026
- Reinstated
- Effective November 15, 2025
From the IRS automatic revocation list: organizations that did not file a required return or e-Postcard for three consecutive years.
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-N for 2024 Officer: Carolyn McDaniel | June 30, 2025 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2021 Officer: Carolyn McDaniel | June 30, 2022 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2020 Officer: Carolyn McDaniel | June 30, 2021 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2019 Officer: Carolyn McDaniel | June 30, 2020 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2018 Officer: Russ Steele | June 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 77-0408400).
Questions about SIERRA ECONOMIC AND SCIENCE FOUNDAT ION
- What is the EIN of SIERRA ECONOMIC AND SCIENCE FOUNDAT ION?
- The employer identification number (EIN) of SIERRA ECONOMIC AND SCIENCE FOUNDAT ION is 77-0408400.
- Is SIERRA ECONOMIC AND SCIENCE FOUNDAT ION tax-exempt?
- Yes. The IRS revoked its exemption on November 15, 2025 and reinstated it effective November 15, 2025.
- Are donations to SIERRA ECONOMIC AND SCIENCE FOUNDAT ION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does SIERRA ECONOMIC AND SCIENCE FOUNDAT ION file?
- Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
- When is the next return of SIERRA ECONOMIC AND SCIENCE FOUNDAT ION 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 SIERRA ECONOMIC AND SCIENCE FOUNDAT ION last file with the IRS?
- The latest return in the IRS public files is the 990-N for 2024 for the year ended June 30, 2025.
- Who is the principal officer of SIERRA ECONOMIC AND SCIENCE FOUNDAT ION?
- The 990-N for 2024 names Carolyn McDaniel.
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