Nonprofit · EIN 32-0621105
SIGMA DELTA OMEGA
Tax-exempt · CORVALLIS, OR 97331
Address and contacts
- Address (IRS master file)
- 2251 SW JEFFERSON WAY, CORVALLIS, OR 97331-8660
- In care of
- % OSU CENTER OF FRATERNITY & SORORI
- Mailing address (990-N for 2025)
- 2251 SW Jefferson Way, Corvallis OR 97330
- Principal officer (990-N for 2025)
- Penelope Webber, 3930 NW Witham Hill Dr Unit 73, Corvallis OR 97330
- Website
- sigmadeltaomega.info
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 May, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | May 31, 2026 | October 15, 2026 | 990-N on file |
| 2024 | May 31, 2025 | October 15, 2025 | Check at the IRS |
| 2023 | May 31, 2024 | October 15, 2024 | Check at the IRS |
IRS record
- EIN
- 32-0621105
- Tax-exempt status
- 501(c)(7): Social or recreational club
- Donations deductible
- No
- Exempt since
- 2021
- Accounting year ends
- May
- Files
- Form 990-N (e-Postcard)
- Category (NTEE)
- Education (B83)
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-N for 2025 Officer: Penelope Webber | May 31, 2026 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2022 Officer: Carly Thorkildson | May 31, 2023 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2020 | May 31, 2021 | ≤ $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 32-0621105).
Questions about SIGMA DELTA OMEGA
- What is the EIN of SIGMA DELTA OMEGA?
- The employer identification number (EIN) of SIGMA DELTA OMEGA is 32-0621105.
- Is SIGMA DELTA OMEGA tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(7) since 2021.
- Are donations to SIGMA DELTA OMEGA tax-deductible?
- No. The IRS master file says contributions to it are not deductible.
- Which annual return does SIGMA DELTA OMEGA file?
- Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
- When is the next return of SIGMA DELTA OMEGA due?
- The return for tax year 2026 (the year ending May 31, 2027) is due October 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did SIGMA DELTA OMEGA last file with the IRS?
- The latest return in the IRS public files is the 990-N for 2025 for the year ended May 31, 2026.
- Who is the principal officer of SIGMA DELTA OMEGA?
- The 990-N for 2025 names Penelope Webber.
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