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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 56-2384856

SAN MARINO HISTORICAL SOCIETY

Tax-exempt (reinstated) · SAN MARINO, CA 91118

Address and contacts

Address (IRS master file)
PO BOX 80222, SAN MARINO, CA 91118-8222
In care of
% PAUL CROWLEY
Mailing address (990-N for 2025)
PO Box 80222, San Marino CA 91118
Principal officer (990-N for 2025)
Christa Lakon, 2340 Coniston Place, San Marino CA 91108

California records

California keeps its own records of charities and corporations. Search them by EIN 56-2384856 or by the name SAN MARINO HISTORICAL SOCIETY.

Attorney General, Registry of Charities and Fundraisers
Registration status and filed reports (CT-TR-1, RRF-1)

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 December, so each return is due on the 15th day of the 5th month after that.

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

File the 2026 990-N for SAN MARINO HISTORICAL SOCIETY

Due May 17, 2027 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
56-2384856
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
2023
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Revocation and reinstatement

Exemption revoked
May 15, 2010
Posted by the IRS
June 9, 2011
Reinstated
Effective May 15, 2010

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: Christa Lakon
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Christa Lakon
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Christa Lakon
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2017
Officer: JOHN RYAN
September 30, 2018≤ $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 56-2384856).

Questions about SAN MARINO HISTORICAL SOCIETY

What is the EIN of SAN MARINO HISTORICAL SOCIETY?
The employer identification number (EIN) of SAN MARINO HISTORICAL SOCIETY is 56-2384856.
Is SAN MARINO HISTORICAL SOCIETY tax-exempt?
Yes. The IRS revoked its exemption on May 15, 2010 and reinstated it effective May 15, 2010.
Are donations to SAN MARINO HISTORICAL SOCIETY tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does SAN MARINO HISTORICAL SOCIETY file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of SAN MARINO HISTORICAL SOCIETY due?
The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did SAN MARINO HISTORICAL SOCIETY last file with the IRS?
The latest return in the IRS public files is the 990-N for 2025 for the year ended December 31, 2025.
Who is the principal officer of SAN MARINO HISTORICAL SOCIETY?
The 990-N for 2025 names Christa Lakon.

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