Nonprofit · EIN 33-1355340
SIGMA ALUMNI FOUNDATION
Tax-exempt · COLUMBUS, OH 43201
Address and contacts
- Address (IRS master file)
- 1946 INDIANOLA AVE, COLUMBUS, OH 43201-1510
- Mailing address (990-N for 2024)
- 36 W Russell St, Columbus OH 43215
- Principal officer (990-N for 2024)
- Abram Haghnazari, 36 W Russell St, Columbus OH 43215
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 15, 2027 | Not due yet |
| 2024 | September 30, 2025 | February 16, 2026 | 990-EZ on file |
| 2023 | September 30, 2024 | February 17, 2025 | No data |
IRS record
- EIN
- 33-1355340
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2025
- Accounting year ends
- September
- Files
- Form 990-N (e-Postcard)
- Category (NTEE)
- Mutual and membership benefit (Y42)
- Assets (IRS master file)
- $993
- Income (IRS master file)
- $3
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-EZ | September 2025 | – | – | – | IRS |
| 990-N for 2024 Officer: Abram Haghnazari | December 31, 2024 | ≤ $50,000 receipts | – | – | e-Postcard |
990-N: the IRS publishes only the latest e-Postcard per organization; earlier years appear here as 990.tax collects the monthly files. 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.
Questions about SIGMA ALUMNI FOUNDATION
- What is the EIN of SIGMA ALUMNI FOUNDATION?
- The employer identification number (EIN) of SIGMA ALUMNI FOUNDATION is 33-1355340.
- Is SIGMA ALUMNI FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2025.
- Are donations to SIGMA ALUMNI FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does SIGMA ALUMNI FOUNDATION file?
- Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
- When is the next return of SIGMA ALUMNI FOUNDATION due?
- The return for tax year 2025 (the year ending September 30, 2026) is due February 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did SIGMA ALUMNI FOUNDATION last file with the IRS?
- The latest return in the IRS public files is the 990-EZ for the year ended September 2025.
- Who is the principal officer of SIGMA ALUMNI FOUNDATION?
- The 990-N for 2024 names Abram Haghnazari.
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