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Big Horn County Property Tax Due Date

Montana

(406) 665-9837

2026 Property Tax Due Dates

Official Source
Installment 1

November 30

First installment

Installment 2

May 31

Second installment

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Penalty: 2% penalty + 10% interestGrace period: None

Payment Methods

Online, Mail, In-Person

Big Horn County Treasurer

Treasurer

Denise Rios

Fax

(406) 665-9838

Office Address

121 W 3rd St, Room 204
Hardin, MT 59034

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Mailing Address

PO Box 908
Hardin, MT 59034

Office Hours

Mon-Fri 8am - 5pm
closed 12pm - 1pm

How to Pay

Online

Pay using credit card or e-check

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By Mail

Mail check payable to Big Horn County Treasurer — PO Box 908, Hardin MT 59034

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In Person

Visit the Treasurer's office — 121 W 3rd St, Room 204, Hardin MT 59034, Mon-Fri 8am - 5pm

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About Big Horn County

Big Horn County is a county located in the U.S. state of Montana. As of the 2020 census, the population was 13,124. The county seat is Hardin.

Source: Wikipedia — content available under CC BY-SA 4.0

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Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.