Nonprofit · EIN 42-1655863
STILLWATER INSTITUTE INC
Tax-exempt · JUPITER, FL 33458
Address and contacts
- Address (IRS master file)
- 2815 E COMMUNITY DR, JUPITER, FL 33458-8216
- In care of
- % KATHRYN M VERNER
- Mailing address (990-N for 2021)
- 2815 East Community Drive, Jupiter FL 33458
- Principal officer (990-N for 2021)
- Kathryn M Verner, 2815 East Community Drive, Jupiter FL 33458
What it must file and when
IRS records say it files Not required. 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 | Not on file |
| 2023 | December 31, 2023 | May 15, 2024 | Not on file |
At risk of automatic revocation
None of the last three returns is in the IRS public files. The IRS revokes tax-exempt status after three consecutive years without a return. Recent filings can take a few weeks to appear.
IRS record
- EIN
- 42-1655863
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (509(a)(2))
- Exempt since
- 2009
- Accounting year ends
- December
- Files
- Not required
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-N for 2021 Officer: Kathryn M Verner | December 31, 2021 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2019 Officer: Kathryn M Verner | December 31, 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 42-1655863).
Questions about STILLWATER INSTITUTE INC
- What is the EIN of STILLWATER INSTITUTE INC?
- The employer identification number (EIN) of STILLWATER INSTITUTE INC is 42-1655863.
- Is STILLWATER INSTITUTE INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2009.
- Which annual return does STILLWATER INSTITUTE INC file?
- Form Not required.
- When is the next return of STILLWATER INSTITUTE INC 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 STILLWATER INSTITUTE INC last file with the IRS?
- The latest return in the IRS public files is the 990-N for 2021 for the year ended December 31, 2021.
- Who is the principal officer of STILLWATER INSTITUTE INC?
- The 990-N for 2021 names Kathryn M Verner.
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