Skip to main content
IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 81-0396597

MISSOURI RIVER HORSEMEN

Tax-exempt (reinstated) · GREAT FALLS, MT 59405

Address and contacts

Address (IRS master file)
1385 MILLEGAN RD, GREAT FALLS, MT 59405-8421
In care of
% EARL NILSEN
Mailing address (990-N for 2025)
1385 Millegan rd, Great Falls MT 59405
Principal officer (990-N for 2025)
Earl G Nilsen, 1385 Millegan rd, Great Falls MT 59405

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 MISSOURI RIVER HORSEMEN

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

IRS record

EIN
81-0396597
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
2022
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Revocation and reinstatement

Exemption revoked
May 15, 2019
Posted by the IRS
August 12, 2019
Reinstated
Effective March 15, 2022

From the IRS automatic revocation list: organizations that did not file a required return or e-Postcard for three consecutive years.

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Earl G Nilsen
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Kevin Nilsen
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Cory Gilcher
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: MAUREEN NILSEN
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2015
Officer: Rosemary Carbis
December 31, 2015≤ $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 81-0396597).

Questions about MISSOURI RIVER HORSEMEN

What is the EIN of MISSOURI RIVER HORSEMEN?
The employer identification number (EIN) of MISSOURI RIVER HORSEMEN is 81-0396597.
Is MISSOURI RIVER HORSEMEN tax-exempt?
Yes. The IRS revoked its exemption on May 15, 2019 and reinstated it effective March 15, 2022.
Are donations to MISSOURI RIVER HORSEMEN tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does MISSOURI RIVER HORSEMEN file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of MISSOURI RIVER HORSEMEN 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 MISSOURI RIVER HORSEMEN 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 MISSOURI RIVER HORSEMEN?
The 990-N for 2025 names Earl G Nilsen.

Other nonprofits in GREAT FALLS

All nonprofits in GREAT FALLS · Montana · Public safety, disaster preparedness and relief