Montana property tax calculator
Estimate your Montana property tax by county. The statewide average effective rate is 0.61%, #35 of 51 among states and DC. Pick your county below for a closer number.
Pick your state and county and enter your home value. Your estimate shows up here.
An estimate, not a tax bill. Effective rates are county medians of taxes paid divided by home value (Tax Foundation 2025, ACS 2020-2024). Your bill depends on your exemptions, school district and local levies.
Montana property tax rates by county
Effective rate = median property tax paid divided by median home value, owner-occupied homes. Counties with a link have a Grove Hopper appeal guide with the deadline and forms.
| County | Rate | Median tax | Median home |
|---|---|---|---|
| Beaverhead County | 0.51% | $2,069 | $308,300 |
| Big Horn County | 0.56% | $1,574 | $143,400 |
| Blaine County | 0.68% | $2,080 | $155,500 |
| Broadwater County | 0.50% | $2,384 | $426,600 |
| Carbon County | 0.42% | $2,281 | $420,800 |
| Carter County | 0.20% | $904 | $199,200 |
| Cascade County | 0.77% | $2,320 | $265,300 |
| Chouteau County | 0.64% | $1,566 | $207,800 |
| Custer County | 0.80% | $2,264 | $219,100 |
| Daniels County | 1.04% | $1,610 | $184,800 |
| Dawson County | 1.00% | $2,110 | $185,300 |
| Deer Lodge County | 0.66% | $1,803 | $231,700 |
| Fallon County | 0.43% | $1,220 | $244,800 |
| Fergus County | 0.77% | $1,769 | $236,100 |
| Flathead County | 0.54% | $3,120 | $535,500 |
| Gallatin County | 0.55% | $3,933 | $667,600 |
| Garfield County | 0.56% | $1,052 | $169,900 |
| Glacier County | 0.49% | $1,391 | $165,100 |
| Golden Valley County | 0.36% | $1,132 | $212,200 |
| Granite County | 0.42% | $2,130 | $352,700 |
| Hill County | 0.90% | $1,980 | $202,600 |
| Jefferson County | 0.51% | $2,446 | $446,900 |
| Judith Basin County | 0.50% | $1,066 | $238,300 |
| Lake County | 0.48% | $2,561 | $421,800 |
| Lewis and Clark County | 0.73% | $3,113 | $393,500 |
| Liberty County | 1.26% | $1,570 | $169,100 |
| Lincoln County | 0.50% | $1,615 | $296,500 |
| Madison County | 0.34% | $1,937 | $470,100 |
| McCone County | 0.74% | $1,429 | $211,600 |
| Meagher County | 0.42% | $1,725 | $259,800 |
| Mineral County | 0.50% | $1,758 | $364,300 |
| Missoula County | 0.78% | $4,150 | $472,100 |
| Musselshell County | 0.51% | $1,287 | $235,000 |
| Park County | 0.38% | $2,641 | $467,500 |
| Petroleum County | 0.57% | $1,211 | $201,400 |
| Phillips County | 0.54% | $1,551 | $197,600 |
| Pondera County | 0.73% | $1,651 | $206,100 |
| Powder River County | 0.32% | $1,304 | $192,100 |
| Powell County | 0.53% | $2,104 | $306,500 |
| Prairie County | 0.49% | $1,391 | $165,700 |
| Ravalli County | 0.41% | $2,380 | $476,600 |
| Richland County | 0.72% | $1,934 | $263,000 |
| Roosevelt County | 0.67% | $1,522 | $118,800 |
| Rosebud County | 0.51% | $1,285 | $182,400 |
| Sanders County | 0.46% | $1,889 | $359,000 |
| Sheridan County | 1.01% | $1,521 | $124,000 |
| Silver Bow County | 0.84% | $2,500 | $255,200 |
| Stillwater County | 0.55% | $2,319 | $405,800 |
| Sweet Grass County | 0.36% | $1,615 | $330,100 |
| Teton County | 0.72% | $1,987 | $264,000 |
| Toole County | 0.66% | $1,908 | $218,400 |
| Treasure County | 0.48% | $1,364 | $230,300 |
| Valley County | 0.92% | $2,333 | $198,400 |
| Wheatland County | 0.48% | $1,013 | $180,800 |
| Wibaux County | 0.59% | $598 | $98,600 |
| Yellowstone County | 0.74% | $2,832 | $349,500 |
Montana property tax FAQs
What is the average property tax rate in Montana?
Montana's average effective property tax rate is 0.61% of home value, which ranks #35 of 51 among the states and DC (#1 is highest). Source: Tax Foundation 2025 (ACS 2020-2024 median taxes paid / median home value).
How much is property tax on a $400,000 home in Montana?
At the Montana average of 0.61%, about $2,440 a year. By county it ranges from about $800 in Carter County (0.20%) to about $5,040 in Liberty County (1.26%).
Which Montana county has the highest property tax rate?
Liberty County has the highest average effective rate in the dataset at 1.26%. Carter County has the lowest at 0.20%. Source: Tax Foundation 2025 (ACS 2020-2024 median taxes paid / median home value).
How can I lower my Montana property tax bill?
The main lever is your assessed value. If it is higher than what similar nearby homes sell for, you can appeal it, and also check whether you qualify for exemptions. Appeals are filed by the homeowner with the county or local board, and deadlines vary by county.
Appealing in Montana? See the Montana county appeal guides →
Source: Tax Foundation 2025 (ACS 2020-2024 median taxes paid / median home value), taxfoundation.org. Estimates are not tax bills. Grove Hopper is a research tool with reminders and document preparation, not attorneys, accountants or a tax firm.