What is the average property tax rate in Montana?

Montana's average effective property tax rate is about 0.74% of home value — the statewide ratio of property tax actually paid to market value. A $300,000 home pays roughly $2,220 per year at this rate.

How is Montana property tax calculated?

This estimator multiplies your home's taxable value by the 0.74% effective rate: taxable value times 0.0074 equals the annual tax. The monthly figure is that annual amount divided by 12.

What is a homestead exemption in Montana?

Many Montana owner-occupants can subtract a fixed exemption amount from their taxable value before tax is applied, lowering the bill. Enter your exemption in the calculator to see the reduced estimate; check with your local assessor for the exact amount you qualify for.

Why might my actual Montana property tax differ from this estimate?

Actual bills depend on your specific county, city, and school-district levies, local assessment ratios, and exemptions, which vary across Montana. The 0.74% figure is a statewide average, so use your assessor's millage and assessed value for an exact number.

Montana Property Tax Estimator (2026)

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Montana property tax is estimated here using the state’s average effective rate of 0.74% — the typical ratio of property tax paid to home value across Montana. Enter your home value (and any homestead exemption) to project your annual and monthly property tax bill.

How it works

The estimate applies Montana’s 0.74% average effective property tax rate to your taxable value. If you enter a homestead exemption, it is subtracted from the value first:

taxable value = home value − homestead exemption
annual tax    = taxable value × 0.0074
monthly tax   = annual tax ÷ 12

The 0.74% rate (0.0074 as a decimal) reflects what Montana homeowners pay on average; your local county, city, and school-district rates may be higher or lower.

Example

A $300,000 home in Montana with no exemption is taxed at 0.74%: $300,000 × 0.0074 = about $2,220 per year, or roughly $185 per month set aside in escrow.

Notes

Estimate only — not financial or tax advice. The 0.74% rate is a statewide average effective rate; your actual Montana bill depends on local millage, assessment ratios, and the specific exemptions you qualify for. Confirm figures with your county assessor or the Montana Department of Revenue before relying on them.