Nonprofit · EIN 81-3223931
STEM CITY
Also known as FLAGSTAFF STEM CITY
Tax-exempt · FLAGSTAFF, AZ 86003
Address and contacts
- Address (IRS master file)
- PO BOX 30446, FLAGSTAFF, AZ 86003-0446
- In care of
- % ANNETTE ZINKY
- Mailing address (990-N for 2025)
- PO Box 30446, Flagstaff AZ 86003
- Principal officer (990-N for 2025)
- Eli Cohen, PO Box 30446, Flagstaff AZ 86003
- Website
- www.flagstaffstemcity.com
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 June, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | June 30, 2026 | November 16, 2026 | 990-N on file |
| 2024 | June 30, 2025 | November 17, 2025 | 990-N on file |
| 2023 | June 30, 2024 | November 15, 2024 | 990-N on file |
IRS record
- EIN
- 81-3223931
- 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
- 2017
- Accounting year ends
- June
- Files
- Form 990-N (e-Postcard)
- Category (NTEE)
- Medical research (H90)
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-N for 2025 Officer: Eli Cohen | June 30, 2026 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2024 Officer: Eli Cohen | June 30, 2025 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2023 Officer: ELI COHEN | June 30, 2024 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2022 Officer: MIKE THOMAS | June 30, 2023 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-EZ | June 2022 | – | – | – | IRS |
| 990-N for 2020 Officer: MIKE THOMAS | June 30, 2021 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2019 Officer: MIKE THOMAS | June 30, 2020 | ≤ $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 81-3223931).
Questions about STEM CITY
- What is the EIN of STEM CITY?
- The employer identification number (EIN) of STEM CITY is 81-3223931.
- Is STEM CITY tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2017.
- Are donations to STEM CITY tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does STEM CITY file?
- Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
- When is the next return of STEM CITY due?
- The return for tax year 2026 (the year ending June 30, 2027) is due November 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did STEM CITY last file with the IRS?
- The latest return in the IRS public files is the 990-N for 2025 for the year ended June 30, 2026.
- Who is the principal officer of STEM CITY?
- The 990-N for 2025 names Eli Cohen.
Other nonprofits in FLAGSTAFF
- WESTERN UROLOGIC FORUM EIN 95-4382778 · last filed 990-N for 2025
- FLAGSTAFF MEDICAL CENTER EIN 86-0110232 · last filed 990 for 2025
- NORTHERN ARIZONA HEALTHCARE CORPORATION EIN 74-2410946 · last filed 990 for 2025
- NORTHERN ARIZONA UNIVERSITY FDN INC EIN 86-0193726 · last filed 990 for 2025
- NORTH COUNTRY HEALTHCARE INC EIN 86-0663432 · last filed 990 for 2024
- AMERICAN CONSERVATION EIN 37-1473291 · last filed 990 for 2024
- GUIDANCE CENTER INC EIN 86-0223720 · last filed 990 for 2025
- LOWELL OBSERVATORY EIN 86-0098918 · last filed 990 for 2025