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Nonprofit · EIN 33-1126018

MARINE CORPS LEAGUE

Also known as 904 CASTLE ROCK MARINE DETACHMENT

Tax-exempt · CASTLE ROCK, CO 80109

Address and contacts

Address (IRS master file)
1647 GENTLE RAIN DR, CASTLE ROCK, CO 80109-3578
In care of
% BARRY GEORGOPULOS
Mailing address (990-N for 2024)
1647 Gentle Rain Drive, Castle Rock CO 80109
Principal officer (990-N for 2024)
Timothy Montgomery, 1647 Gentle Rain Drive, Castle Rock CO 80109

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

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026Not due yet
2024June 30, 2025November 17, 2025990-N on file
2023June 30, 2024November 15, 2024990-N on file

IRS record

EIN
33-1126018
Tax-exempt status
501(c)(4): Social welfare organization
Exempt since
1946
Accounting year ends
June
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2024
Officer: Timothy Montgomery
June 30, 2025≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Timothy P Montgomery
June 30, 2024≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: BARRY GEORGOPULOS
June 30, 2023≤ $50,000 receipts––e-Postcard
990-N for 2021
Officer: Donald Howell
June 30, 2022≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Barry M Georgopulos
June 30, 2021≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Barry Georgopulos
June 30, 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 33-1126018).

Questions about MARINE CORPS LEAGUE

What is the EIN of MARINE CORPS LEAGUE?
The employer identification number (EIN) of MARINE CORPS LEAGUE is 33-1126018.
Is MARINE CORPS LEAGUE tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(4) since 1946.
Which annual return does MARINE CORPS LEAGUE file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of MARINE CORPS LEAGUE due?
The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did MARINE CORPS LEAGUE last file with the IRS?
The latest return in the IRS public files is the 990-N for 2024 for the year ended June 30, 2025.
Who is the principal officer of MARINE CORPS LEAGUE?
The 990-N for 2024 names Timothy Montgomery.

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