Sweet Grass County Annex
115 W 5th Ave
PO Box 888
Big Timber, MT 59011

Office Hours: M-F 8AM to 5PM

Phone: (406) 932-5151

Fax: (406) 932-3026

Phone: (406) 932-5151

Fax: (406) 932-3026

County Treasurer: Jane Stene sgtreas2@itstriangle.com

Deputy County Treasurer: Stephanie Heinemann sgtreas3@itstriangle.com

Administrative Assistant: Char Fuller sgtreas4@itstriangle.com

Tax Information

WHEN PAYMENT IS DUE
Tax bills are mailed once a year. Notices are not mailed for the 2nd payment.

VIEW AND PAY TAXES ONLINE

Taxes on real estate and mobile homes may be paid in two installments. If not paid by the due dates, the taxes are considered delinquent and will accrue penalty and interest.

Real Estate Taxes:
1st half due December 9th
2nd half due May 31

Mobile Home Taxes:
1st half due May 31
2nd half due November 30

Personal Property Taxes: Due June 30

PAYING AFTER THESE DATES
If paid after these dates, please call our office for the additional penalty and interest that is owed. If the dollar amount is not correct, your payment cannot be accepted and will be returned to you.

HOW TO PAY:
You may pay in person, by mail, or by telephone with a credit or debit card. If paying by mail, please be sure to put your tax ID number on your check or include your payment stubs. If paying with a credit or debit card, an additional service fee will be charged.

QUESTIONS RELATING TO PROPERTY VALUE
For any questions relating to the value of your property, please contact the Department of Revenue at 406-932-5149.

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