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Nonprofit · EIN 06-6069250

HAMDEN HISTORICAL SOCIETY INC

Tax-exempt (reinstated) · HAMDEN, CT 06518

Address and contacts

Address (IRS master file)
PO BOX 5512, HAMDEN, CT 06518-0512
In care of
% JOSEPH PEPE
Mailing address (990-N for 2025)
PO BOX 5512, HAMDEN CT 065180512
Principal officer (990-N for 2025)
Kenneth P Minkema, 4016 Whitney Avenue, Hamden CT 06518

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 yearYear endedDueIRS public records
2025May 31, 2026October 15, 2026990-N on file
2024May 31, 2025October 15, 2025990-N on file
2023May 31, 2024October 15, 2024990-N on file

File the 2026 990-N for HAMDEN HISTORICAL SOCIETY INC

Due October 15, 2027 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
06-6069250
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
2014
Accounting year ends
May
Files
Form 990-N (e-Postcard)

Revocation and reinstatement

Exemption revoked
October 15, 2011
Posted by the IRS
June 11, 2012
Reinstated
Effective October 15, 2011

From the IRS automatic revocation list: organizations that did not file a required return or e-Postcard for three consecutive years.

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Kenneth P Minkema
May 31, 2026≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Kenneth P Minkema
May 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Joseph Pepe
May 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Kenneth Minkema
May 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Joseph Pepe
May 31, 2021≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Joseph Pepe
May 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 06-6069250).

Questions about HAMDEN HISTORICAL SOCIETY INC

What is the EIN of HAMDEN HISTORICAL SOCIETY INC?
The employer identification number (EIN) of HAMDEN HISTORICAL SOCIETY INC is 06-6069250.
Is HAMDEN HISTORICAL SOCIETY INC tax-exempt?
Yes. The IRS revoked its exemption on October 15, 2011 and reinstated it effective October 15, 2011.
Are donations to HAMDEN HISTORICAL SOCIETY INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does HAMDEN HISTORICAL SOCIETY INC file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of HAMDEN HISTORICAL SOCIETY INC 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 HAMDEN HISTORICAL SOCIETY INC 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 HAMDEN HISTORICAL SOCIETY INC?
The 990-N for 2025 names Kenneth P Minkema.

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