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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 84-1475919

BOULDER AMATEUR RADIO CLUB

Tax-exempt · BOULDER, CO 80308

Address and contacts

Address (IRS master file)
PO BOX 17362, BOULDER, CO 80308-0362
In care of
% JACK CIACCIA
Mailing address (990-N for 2025)
PO Box 17362, Boulder CO 80308
Principal officer (990-N for 2025)
Michael Stutzer, 8463 Thunderhead Dr, Boulder CO 80302

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 BOULDER AMATEUR RADIO CLUB

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

IRS record

EIN
84-1475919
Tax-exempt status
501(c)(4): Social welfare organization
Donations deductible
No
Exempt since
1999
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Michael Stutzer
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Michael Stutzer
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Michael Stutzer
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Michael Stutzer
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2021
Officer: Michael Stutzer
December 31, 2021≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Michael Stutzer
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Michael Stutzer
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 84-1475919).

Questions about BOULDER AMATEUR RADIO CLUB

What is the EIN of BOULDER AMATEUR RADIO CLUB?
The employer identification number (EIN) of BOULDER AMATEUR RADIO CLUB is 84-1475919.
Is BOULDER AMATEUR RADIO CLUB tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(4) since 1999.
Are donations to BOULDER AMATEUR RADIO CLUB tax-deductible?
No. The IRS master file says contributions to it are not deductible.
Which annual return does BOULDER AMATEUR RADIO CLUB file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of BOULDER AMATEUR RADIO CLUB 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 BOULDER AMATEUR RADIO CLUB 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 BOULDER AMATEUR RADIO CLUB?
The 990-N for 2025 names Michael Stutzer.

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