Treasurer - Property Tax Division

As of March 21, 2020, the County Treasurer's Office will be closed to the public until further notice.  Tax payments can be made online at  Credit and debit card fees are the same online or in person.  

Need payoff information or have other questions related to property taxes?  Please email us at or call us at 406-582-3033.

Thank you for your patience and understanding as we navigate through unchartered territory and adapt to everchanging limitations.  We care about your health and that of our employees. We are also committed to providing you the best customer service possible and are working to find innovative ways to do so.

In the meantime, be safe, be kind and be well.

Jennifer Blossom, Gallatin County Treasurer and the Tax Team


DUE DATE INFORMATION:                                                                                                                                                

REAL PROPERTY TAXES:  The 2019 Real Property tax statements were mailed in early November, with the first half due by 5PM on December 4, 2019,  and the second half due June 1, 2020. Mail postmarked by the due date will be accepted.
MOBILE HOME TAXES:  The second half of Mobile Home taxes were due by 5PM December 2, 2019.  Mail postmarked by the due date will be accepted.

*NEW*  To opt in for free text or email Real Property Tax due date reminders, click here.  For free Mobile Home Tax due date reminders, click here.

SAVE TIME AND PAY ONLINE!  To make an online payment using a Visa, MasterCard or Discover credit or debit card, OR by electronic check *NEW* (e-check) go to, enter your Taxpayer ID#/Parcel # or other criterion and follow the prompts.  (Note:  A convenience fee for the use of credit or debit cards of $1.25 + 1.99% is charged by our third party processor.  A flat fee of $2.00 is charged for e-checks.  Multiple parcels can be paid together.)

For a change of mailing address, questions regarding the assessed market value of property, appeals, or legal description of property, contact the Montana Department of Revenue – Bozeman Office at 406-582-3400 or email:

Staff Contacts

Jennifer Blossom

County Treasurer