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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 43-1498834

ST CLAIR HISTORICAL MUSEUM

Tax-exempt · SAINT CLAIR, MO 63077

Address and contacts

Address (IRS master file)
PO BOX 137, SAINT CLAIR, MO 63077-0137
In care of
% CAROL RADFORD
Mailing address (990-N for 2025)
560 MAIN ST PO BOX 137, SAINT CLAIR MO 630770137
Principal officer (990-N for 2025)
Glen Alsop, 560 S MAIN ST, PO BOX 137, SAINT CLAIR MO 63077

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 ST CLAIR HISTORICAL MUSEUM

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

IRS record

EIN
43-1498834
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
1989
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Glen Alsop
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Carol Radford
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Carol Radford
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Nancy Redhage
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2021
Officer: Nancy Redhage
December 31, 2021≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Nancy Redhage
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Carol Radford
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 43-1498834).

Questions about ST CLAIR HISTORICAL MUSEUM

What is the EIN of ST CLAIR HISTORICAL MUSEUM?
The employer identification number (EIN) of ST CLAIR HISTORICAL MUSEUM is 43-1498834.
Is ST CLAIR HISTORICAL MUSEUM tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1989.
Are donations to ST CLAIR HISTORICAL MUSEUM tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does ST CLAIR HISTORICAL MUSEUM file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of ST CLAIR HISTORICAL MUSEUM 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 ST CLAIR HISTORICAL MUSEUM 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 ST CLAIR HISTORICAL MUSEUM?
The 990-N for 2025 names Glen Alsop.

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