Montana Property Tax Appeal Guide
Appeal deadlines, exemptions, assessment rules, and county filing details for Montana homeowners.
State Overview
In Montana, property tax appeals are generally handled through the County Tax Appeal Board / State Tax Appeal Board. Assessment notices are typically issued June - July (reappraisal years), and the appeal deadline is First Monday in June (or 30 days after notice). LowerTheTax reviews comparable sales, assessment records, exemptions, and county filing rules before recommending whether to appeal.
Find Your County
Property tax rules can vary by county. Search for your county to see specific information.
Or select from major counties:
Real Property Information
Assessment Notice Issue Date
June - July (reappraisal years)
Appeal Deadline
First Monday in June (or 30 days after notice)
Tax Bills Issued
October
Payment Due Date
November 30
Personal Property Information
Rendition Date
March 1
Assessment Notice
Same as real property
Appeal Deadline
First Monday in June
Available Exemptions
Special Programs
Property Tax Assistance Program (PTAP)
Review eligibility and timing before filing a Montana property tax appeal.
Disabled Veteran Property Tax Relief
Review eligibility and timing before filing a Montana property tax appeal.
Montana Elderly Homeowner/Renter Credit
Review eligibility and timing before filing a Montana property tax appeal.