Property Tax Deadlines Approaching in Gallatin County

Tax deadlines are coming up in Gallatin County.

• The second half of 2021 real property taxes are due May 31.

• The first half of 2022 taxes for mobile homes are due May 31.

Payments must be received in the Gallatin County Treasurer's Office by 5 PM that day. By law, postmarks can no longer be accepted.

Taxes become delinquent if not paid by the due date and will draw interest at the rate of 5/6 of 1% per month from the time of delinquency until paid, and a one-time 2% penalty fee will be added.

To make an online payment via debit/credit card or e-check (fees apply), visit itax.gallatin.mt.gov...