Skip to main content
IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 77-0574960

HISTORICAL SOCIETY OF MORRO BAY

Tax-exempt · MORRO BAY, CA 93443

Address and contacts

Address (IRS master file)
PO BOX 921, MORRO BAY, CA 93443-0921
In care of
% GLENN SILLOWAY
Mailing address (990-N for 2025)
PO Box 921, Morro Bay CA 93443
Principal officer (990-N for 2025)
Glenn Silloway, PO Box 921, Morro Bay CA 93443

California records

California keeps its own records of charities and corporations. Search them by EIN 77-0574960 or by the name HISTORICAL SOCIETY OF MORRO BAY.

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 HISTORICAL SOCIETY OF MORRO BAY

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

IRS record

EIN
77-0574960
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
2006
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Glenn Silloway
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Glenn Silloway
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Glenn Silloway
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Glenn Silloway
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Glenn Silloway
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Glenn Silloway
December 31, 2019≤ $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 77-0574960).

Questions about HISTORICAL SOCIETY OF MORRO BAY

What is the EIN of HISTORICAL SOCIETY OF MORRO BAY?
The employer identification number (EIN) of HISTORICAL SOCIETY OF MORRO BAY is 77-0574960.
Is HISTORICAL SOCIETY OF MORRO BAY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2006.
Are donations to HISTORICAL SOCIETY OF MORRO BAY tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does HISTORICAL SOCIETY OF MORRO BAY file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of HISTORICAL SOCIETY OF MORRO BAY 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 HISTORICAL SOCIETY OF MORRO BAY 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 HISTORICAL SOCIETY OF MORRO BAY?
The 990-N for 2025 names Glenn Silloway.

Other nonprofits in MORRO BAY

All nonprofits in MORRO BAY · California · Arts, culture and humanities