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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 74-2501491

COLORADO ARCHAEOLOGICAL SOCIETY

Also known as HISATSINOM

Tax-exempt · CORTEZ, CO 81321

Address and contacts

Address (IRS master file)
PO BOX 1524, CORTEZ, CO 81321-1524
In care of
% MICHAEL WOODROW
Mailing address (990-N for 2025)
PO Box 1524, Cortez CO 81321
Principal officer (990-N for 2025)
John Swanborg, PO Box 1524, Cortez CO 81321

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 COLORADO ARCHAEOLOGICAL SOCIETY

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

IRS record

EIN
74-2501491
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (509(a)(2))
Exempt since
1985
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: John Swanborg
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: John Swanborg
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: John B Swanborg
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: John B Swanborg
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2021
Officer: John Swanborg
December 31, 2021≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: John Swanborg
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: John Swanborg
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 74-2501491).

Questions about COLORADO ARCHAEOLOGICAL SOCIETY

What is the EIN of COLORADO ARCHAEOLOGICAL SOCIETY?
The employer identification number (EIN) of COLORADO ARCHAEOLOGICAL SOCIETY is 74-2501491.
Is COLORADO ARCHAEOLOGICAL SOCIETY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1985.
Which annual return does COLORADO ARCHAEOLOGICAL SOCIETY file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of COLORADO ARCHAEOLOGICAL SOCIETY 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 COLORADO ARCHAEOLOGICAL SOCIETY 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 COLORADO ARCHAEOLOGICAL SOCIETY?
The 990-N for 2025 names John Swanborg.

Other nonprofits in CORTEZ

All nonprofits in CORTEZ · Colorado