2026 Property Tax Due Dates
November 30
First installment
May 31
Second installment
Payment Methods
Online, Mail, In-Person
Sweet Grass County Treasurer
Treasurer
Char Fuller
Phone
(406) 932-5151Mailing Address
PO Box 888, Big Timber, MT 59011
Office Hours
How to Pay
Online
Pay using credit card or e-check
By Mail
Mail check payable to Sweet Grass County Treasurer — PO Box 888, Big Timber, MT 59011
In Person
Visit the Treasurer's office — 115 W 5th Ave, Big Timber MT 59011, Mon-Fri 8am - 5pm
Other Counties in Montana
About Sweet Grass County
Sweet Grass County is a county located in the U.S. state of Montana. As of the 2020 census, the population was 3,678. Its county seat is Big Timber.
Source: Wikipedia — content available under CC BY-SA 4.0
Related Resources
Get Deadline Reminders
We'll email you 336 hours before your property taxes are due.
Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.