ROI Math

Property tax estimate

Montana Property Tax Calculator

Estimate annual and monthly property taxes in Montanausing the state's 2024 average effective rate of 0.61% for owner-occupied housing. Enter a home value below to see an instant baseline estimate — free and with no sign-up.

Data updated 2026-06-14 · 2020–2024 ACS 5-year estimates

Montana Property Tax Calculator
2024 owner-occupied benchmark: 0.61%.
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Montana has no state sales tax; property taxes fund schools and local government and vary by county mill levy.
Annual estimate
$3,050
Monthly estimate
$254

How to calculate property taxes in Montana

To estimate property taxes in Montana, multiply the home value by the local property tax rate. This page applies the state average effective owner-occupied rate of 0.61%, so a home valued at $500,000 produces a baseline annual estimate of $3,050.

Montana has no state sales tax; property taxes fund schools and local government and vary by county mill levy.

Actual tax bills can include county, city, school district, property classification, exemption, and assessment rules, so investors should verify the final number with the local assessor before closing.

Comparing returns across markets? Use the cap rate calculator and cash-on-cash return calculator, which let you include property taxes as an operating expense.

Montana property tax FAQ

What is the average property tax rate in Montana?

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The 2024 ACS average effective property tax rate for owner-occupied housing in Montana is about 0.61%, which is below the U.S. benchmark of roughly 0.94%. Your local rate may differ by county, city, property classification, and exemptions.

How much is property tax on a $400,000 home in Montana?

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Using Montana's 2024 owner-occupied benchmark of 0.61%, a $400,000 home produces a baseline estimate of $2,440 per year, or roughly $203 per month. Actual bills vary with local rates, property classification, and exemptions.

How do I calculate property tax in Montana?

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Multiply your home's value by the applicable local effective property tax rate. This calculator applies Montana's 2024 owner-occupied benchmark of 0.61%, but you should confirm the exact county, city, school district, property classification, and exemptions with your local assessor.

Property tax calculators for other states

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This estimate uses Montana's average effective property tax rate for owner-occupied housing and is for educational purposes only — not tax advice. Rental and commercial property may be taxed differently. Confirm your exact rate, classification, and exemptions with your local assessor.