Treasurer

Please be reminded that:

The 1st installment payment of Real Estate Property Taxes are due by November 30th of the current year.
The 2nd installment of Real Estate Property are due by May 31st of the following year.
1st half of Mobile Home taxes are due May 31, of the current year. The 2nd half payment of Mobile Home taxes are due by November 30 of the current year.

Personal Property Taxes: Due in FULL June 30th of the current year.


The links below show current tax bill information for each taxpayer, along with a comparison to the previous tax year. 

• 2025 CENTRALLY ASSESSED TAX BILLS
• 2026 MOBILE HOME TAX BILLS
• 2025 PERSONAL PROPERTY TAX BILLS
• 2025 REAL ESTATE TAX BILLS

DISCLAIMER: THESE REPORTS ARE FOR INFORMATIONAL PURPOSES ONLY. Each report is uploaded only once per year, and therefore, any updates to tax records may not be reflected.

Dates on postmarked are honored as payment dates in order to avoid penalty & interest. 

There is a 2% penalty and 5/6 of 1% of interest accumulated monthly to all delinquent taxes. 

Each August 1, all real estate properties with delinquent taxes from  the year prior have a lien placed against the property. These liens are  available for sale to the general public. Tax liens may allow for the  assignee ( owner of the lien) to acquire ownership of the land.

Please contact The Carter County Treasurers Office for more information about liens, tax lien sales, and tax deeds.

Delinquent Mobile Home and Personal Property Taxes are subject to  laws which require that a writ of execution be delivered to the Carter  County Sheriff. The Sheriff may, in accordance with law, seize and sell  personal property in order to pay the delinquent taxes. Writs for  delinquent personal property taxes are executed in the fall, and writs  for delinquent mobile home taxes are executed in the spring. 

All drivers license exam stations now require APPOINTMENTS!! Plan ahead and schedule EARLY to ensure you get the date and time that best meets your needs. We are happy to help you make an appointment at any exam station, or you may visit: https://doj.mt.gov/driving/appointment-scheduling/ or call 866-450-8034

For information about Montana’s REAL ID act and how it might affect you, call us at (406) 896-4326 or visit http://mtrealid.gov 

We are happy to answer any questions about Motor Vehicle Title and Registration processes over the phone.  406-775-8735 

All the Montana license plates can be viewed by following THIS LINK for plate designs.

VIN inspections ( except for salvage vehicles) are offered by the Sheriff’s Office free of charge. 

Payments can be made by phone by calling 406-775-8735 during business hours.