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Nonprofit · EIN 27-3323585

MASON SQUARE MUSEUM

Tax-exempt · MASON, TX 76856

Address and contacts

Address (IRS master file)
PO BOX 203, MASON, TX 76856-0203
In care of
% ALBERTA BIRK
Mailing address (990-N for 2025)
PO BOX 203, MASON TX 768560203
Principal officer (990-N for 2025)
Alberta BIrk, P O Box 203, Mason TX 76856

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, 2025No data
2023December 31, 2023May 15, 2024No data

File the 2026 990-N for MASON SQUARE MUSEUM

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

IRS record

EIN
27-3323585
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
2011
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Alberta BIrk
December 31, 2025≤ $50,000 receipts––e-Postcard

990-N: the IRS publishes only the latest e-Postcard per organization; earlier years appear here as 990.tax collects the monthly files. 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.

Questions about MASON SQUARE MUSEUM

What is the EIN of MASON SQUARE MUSEUM?
The employer identification number (EIN) of MASON SQUARE MUSEUM is 27-3323585.
Is MASON SQUARE MUSEUM tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2011.
Are donations to MASON SQUARE MUSEUM tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does MASON SQUARE MUSEUM file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of MASON SQUARE 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 MASON SQUARE 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 MASON SQUARE MUSEUM?
The 990-N for 2025 names Alberta BIrk.

Other nonprofits in MASON

All nonprofits in MASON · Texas · Arts, culture and humanities