Property Tax Due Dates in Montana

Montana property taxes are administered at the county level. The state Department of Revenue appraises property at market value and applies a class rate to determine the taxable value. Residential property is appraised at market value, and the taxable value equals a percentage of that (the residential class rate is set by the state legislature and has been reduced in recent years to around 1.35% of market value — meaning a $300,000 home has a taxable value of approximately $4,050). Montana has no sales tax, so property taxes are an important revenue source for local governments and schools. Tax bills are mailed in the fall and split into two payments.

Montana property taxes are paid in two equal installments: First half: Due November 30 Second half: Due May 31 of the following year A 2% penalty per month (up to 10%) applies to late payments. Most counties offer online payment through the county treasurer's website. Contact your county treasurer for available payment options.

Montana property tax relief programs: Elderly Homeowner and Renter Credit — Qualifying Montana residents who are 62 or older with income under $45,000 may receive a credit of up to $1,000 on their state income tax return for property taxes or rent paid. Claim on the Montana income tax return. Property Tax Assistance Program (PTAP) — Provides a reduction in taxable value for qualifying low-income and disabled homeowners. Applicants must be 62 or older, disabled, blind, or a surviving spouse, with income limits. Apply with the Montana Department of Revenue by April 15. Disabled Veterans Property Tax Reduction — Veterans with a service-connected disability rating of 50% or more receive a reduction in taxable value. 100% disabled veterans may receive a full exemption. Apply with the Montana Department of Revenue.

Montana property tax appeals go to the county Tax Appeal Board: Deadline: File an appeal with the county Tax Appeal Board within 30 days of receiving your assessment notice (mailed by the Department of Revenue in odd years for market value changes). Process: Present evidence that the market value is lower than determined — comparable sales, an independent appraisal. The county Tax Appeal Board hears cases locally. Further appeal: Appeal county Tax Appeal Board decisions to the State Tax Appeal Board within 30 days.