Nonprofit · EIN 35-2590684
STARBASE INC
Tax-exempt · FISHERS, IN 46038
Address and contacts
- Address (IRS master file)
- 10831 THISTLE RDG, FISHERS, IN 46038-2254
- In care of
- % HEATHER L COTTINGHAM
- Mailing address (990-N for 2025)
- 10831 Thistle Ridge, Fishers IN 46038
- Principal officer (990-N for 2025)
- Thomas Rathjen, 6628 Royal Oakland Dr, Indianapolis IN 46236
- Website
- https://www.starbaseindy.org
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 March, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | March 31, 2026 | August 17, 2026 | 990-N on file |
| 2024 | March 31, 2025 | August 15, 2025 | 990-N on file |
| 2023 | March 31, 2024 | August 15, 2024 | 990-N on file |
IRS record
- EIN
- 35-2590684
- 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
- 2017
- Accounting year ends
- March
- Files
- Form 990-N (e-Postcard)
- Category (NTEE)
- Unknown (Z99)
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-N for 2025 Officer: Thomas Rathjen | March 31, 2026 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2024 Officer: Thomas Rathjen | March 31, 2025 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2023 Officer: Thomas Rathjen | March 31, 2024 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2022 Officer: Thomas Rathjen | March 31, 2023 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2019 Officer: Amber Jones | March 31, 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 35-2590684).
Questions about STARBASE INC
- What is the EIN of STARBASE INC?
- The employer identification number (EIN) of STARBASE INC is 35-2590684.
- Is STARBASE INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2017.
- Are donations to STARBASE INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does STARBASE INC file?
- Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
- When is the next return of STARBASE INC due?
- The return for tax year 2026 (the year ending March 31, 2027) is due August 16, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did STARBASE INC last file with the IRS?
- The latest return in the IRS public files is the 990-N for 2025 for the year ended March 31, 2026.
- Who is the principal officer of STARBASE INC?
- The 990-N for 2025 names Thomas Rathjen.
Other nonprofits in FISHERS
- FOUNDATION FOR FRATERNAL EXCELLENCE INC EIN 35-1873572 · last filed 990 for 2025
- OUR BROTHERS PLACE COMPANY EIN 37-1743677 · last filed 990-EZ for 2025
- COMMUNITY HOME HEALTH SERVICES INC EIN 35-0953467 · last filed 990 for 2024
- CONNER PRAIRIE MUSEUM INC EIN 20-3402627 · last filed 990 for 2024
- AHEPA AFFORDABLE HOUSING MANAGEMENT COMPANY INC EIN 35-1867058 · last filed 990 for 2024
- CUSTOM ELECTRONIC DESIGN & INSTALLATION ASSOCIATION EIN 36-3724289 · last filed 990 for 2024
- GOOD SAMARITAN NETWORK OF HAMILTONCOUNTY INC EIN 20-4371453 · last filed 990 for 2024
- CONNER PRAIRIE FOUNDATION INC EIN 20-3402547 · last filed 990 for 2024