Montana mortgage calculator
Estimate your monthly payment for a home in Montana, with property tax at the state average of 0.72% and home insurance included. Rates use the 7.4% national 30-year average from Freddie Mac (week of October 8, 2026).
Estimated monthly payment
- Loan amount
- $300,640
- Down payment
- $75,160
- Interest over 30 years
- $448,725
- Income needed (28% guideline)
- $104,241 a year
Estimate only. Mortgage insurance (PMI) is added when the down payment is under 20%. Real taxes, insurance and lender fees vary by property.
How this is calculated. Principal and interest use the standard fixed-rate loan formula. Property tax uses the Montana average effective rate: the median real estate tax paid divided by the median home value. Home insurance is a general estimate that you can change.
Sources: Freddie Mac mortgage rate survey, week of October 8, 2026; U.S. Census Bureau American Community Survey, 2020–2024. Updated October 2026. Full methodology.
What a typical home costs per month in Montana
A home valued at the Montana median of $375,800 (the Census Bureau's figure for owner-occupied homes), bought with 20% down at 7.4% over 30 years, comes to about $2,432 a month. That is $2,082 in principal and interest, $225 in property tax and $125 in insurance.
Over a year that is 40.3% of the state's median household income of $72,509. Keeping housing costs near 28% of gross income would take a household income of about $104,241.
Property tax in Montana
Montana has the 32nd highest effective property tax rate of the 50 states at 0.72%, below the typical state rate of 0.80%. The median Montana homeowner pays $2,693 a year.
| Home price | Tax per year | Tax per month |
|---|---|---|
| $200,000 | $1,433 | $119 |
| $300,000 | $2,150 | $179 |
| $400,000 | $2,866 | $239 |
| $500,000 | $3,583 | $299 |
| $750,000 | $5,375 | $448 |
These figures apply the statewide average rate. Rates differ between counties and taxing districts, and some homes qualify for exemptions.
States with similar property tax rates
- Kentucky0.75% (29th highest)
- Indiana0.74% (30th highest)
- Virginia0.73% (31st highest)
- Mississippi0.72% (33rd highest)
- New Mexico0.70% (34th highest)
- California0.70% (35th highest)
Questions about Montana mortgage payments
What is the property tax rate in Montana?
The average effective property tax rate in Montana is 0.72%. Census Bureau data shows homeowners paid a median of $2,693 a year on homes with a median value of $375,800. Your own rate depends on your county, city and school district.
How much is the monthly mortgage payment on a median-value home in Montana?
About $2,432 a month including property tax and insurance, assuming 20% down at 7.4% on a 30-year loan. Principal and interest alone come to $2,082.
How much income do I need to buy a home in Montana?
A common guideline keeps housing costs under 28% of gross income. For the median-value home above, that works out to about $104,241 a year. Lenders also look at debts, credit score and savings, so your own number may differ.
Does this calculator include property tax and insurance?
Yes. It adds property tax at 0.72% of the home price and home insurance at 0.4% of the home price as a starting estimate. Change either number to match a real quote. Mortgage insurance is added automatically when the down payment is under 20%.
Last updated October 2026. See the methodology for sources and limits.