Nonprofit · EIN 33-3729024
OPEN HOUSE OF HISTORY
Tax-exempt · WALDOBORO, ME 04572
Address and contacts
- Address (IRS master file)
- PO BOX 95, WALDOBORO, ME 04572-0095
- In care of
- % MICHAEL AMICO
- Mailing address (990-N for 2024)
- PO Box 95, Waldoboro ME 04572
- Principal officer (990-N for 2024)
- Michael Amico, PO Box 95, Waldoboro ME 04572
- Website
- openhouseofhistory.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 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 | Not due yet |
| 2024 | June 30, 2025 | November 17, 2025 | 990-N on file |
| 2023 | June 30, 2024 | November 15, 2024 | Check at the IRS |
IRS record
- EIN
- 33-3729024
- 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
- June
- Files
- Form 990-N (e-Postcard)
- Category (NTEE)
- Arts, culture and humanities (A80)
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-N for 2024 Officer: Michael Amico | June 30, 2025 | ≤ $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 33-3729024).
Questions about OPEN HOUSE OF HISTORY
- What is the EIN of OPEN HOUSE OF HISTORY?
- The employer identification number (EIN) of OPEN HOUSE OF HISTORY is 33-3729024.
- Is OPEN HOUSE OF HISTORY tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2025.
- Are donations to OPEN HOUSE OF HISTORY tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does OPEN HOUSE OF HISTORY file?
- Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
- When is the next return of OPEN HOUSE OF HISTORY due?
- The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did OPEN HOUSE OF HISTORY last file with the IRS?
- The latest return in the IRS public files is the 990-N for 2024 for the year ended June 30, 2025.
- Who is the principal officer of OPEN HOUSE OF HISTORY?
- The 990-N for 2024 names Michael Amico.
Other nonprofits in WALDOBORO
- WALDO THEATER INC EIN 01-0459306 · last filed 990 for 2024
- WALDOBOROUGH HISTORICAL SOCIETY EIN 01-0511809 · last filed 990-N for 2025
- CAKEWOOD CREATIVE ARTS EIN 85-2426679 · last filed 990-N for 2025
- MIDCOAST CONSERVANCY EIN 22-2658964 · last filed 990 for 2025
- MEDOMAK EXCHANGE EIN 87-2102698 · last filed 990 for 2024
- COASTAL CHRISTIAN SCHOOL INC EIN 01-0373373 · last filed 990 for 2025
- WALDOBORO PUBLIC LIBRARY EIN 01-0329748 · last filed 990 for 2025
- LINNELL FOUNDATION EIN 04-2625173 · last filed 990-PF for 2024
All nonprofits in WALDOBORO · Maine · Arts, culture and humanities