Montana Property Tax Calculator 2026

Montana Property Tax Overview

Montana has an effective property tax rate of 0.84%, making it near the national average among all 50 states. The average annual property tax in Montana is $2,480 on a median home value of $295,200.

• Effective tax rate: 0.84%
• Assessment ratio: 100%
• Median home value: $295,200
• Average annual tax: $2,480 ($207/month)

How Montana Property Tax Works

Montana properties are assessed at 100% of market value. The assessed value is then multiplied by the local millage rate to determine your annual tax bill.

Montana Property Tax = Assessed Value × Local Millage Rate

Local millage rates vary by county, city, school district, and special districts within Montana. Your total rate is the sum of all applicable levies.

Montana Property Tax Exemptions

• Homestead exemption: Up to 34% exemption on market value for primary residence (2026)
• Senior exemption: Available in most counties — check your local assessor's office for specific amounts and age thresholds (typically 65+)
• Veteran exemption: Disabled veterans (10%+ rating) may qualify for additional exemptions — varies by county. Contact your county assessor for details
• Disability exemption: Disability exemptions available in most counties — typically mirrors the senior exemption. Contact your county assessor for specific amounts

How Montana Compares to Neighboring States

How to Appeal Your Montana Property Tax

If you believe your Montana property is over-assessed, you have the right to appeal:

• 1. Contact your county assessor — Review your assessment for errors in square footage, lot size, or condition
• 2. Gather comparable sales — Find 3-5 similar homes sold recently in your Montana neighborhood with lower values
• 3. File by the deadline — Montana appeal deadlines vary by county; check your assessment notice
• 4. Present evidence — Focus on facts and comparable data, not complaints about tax rates
• 5. Success rate: 50-70% of Montana property tax appeals result in a reduction