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Montana mortgage calculator

Pre-filled for Montana: the median home value ($425,000) and the state's effective property tax rate of 0.69%. Change anything to match your home.

Home price
Down payment$85,000
%
Interest rateAPR, fixed
%
Loan term
Extra monthly paymenttoward principal
/ mo

Estimated monthly payment

$2,543.41

Loan $340,000 · 20% down

  • Principal & interest$2,149.03
  • Property tax$244.38
  • Home insurance$150.00
See the month-by-month schedule →
Total interest
$433,652
Total cost
$915,629
Payoff time
30 yr
PMI paid
None

Principal vs. interest by year

1: Principal 3,800, Interest 21,98812: Principal 4,055, Interest 21,7343: Principal 4,326, Interest 21,4624: Principal 4,616, Interest 21,17245: Principal 4,925, Interest 20,8636: Principal 5,255, Interest 20,5337: Principal 5,607, Interest 20,1818: Principal 5,982, Interest 19,80689: Principal 6,383, Interest 19,40510: Principal 6,811, Interest 18,97811: Principal 7,267, Interest 18,52212: Principal 7,753, Interest 18,0351213: Principal 8,273, Interest 17,51614: Principal 8,827, Interest 16,96215: Principal 9,418, Interest 16,37016: Principal 10,049, Interest 15,7401617: Principal 10,722, Interest 15,06718: Principal 11,440, Interest 14,34919: Principal 12,206, Interest 13,58320: Principal 13,023, Interest 12,7652021: Principal 13,895, Interest 11,89322: Principal 14,826, Interest 10,96223: Principal 15,819, Interest 9,96924: Principal 16,878, Interest 8,9102425: Principal 18,009, Interest 7,78026: Principal 19,215, Interest 6,57427: Principal 20,502, Interest 5,28728: Principal 21,875, Interest 3,9142829: Principal 23,340, Interest 2,44930: Principal 24,904, Interest 88630
PrincipalInterest

Amortization schedule by year

YearPrincipalInterestBalance
1$3,800$21,988$336,200
2$4,055$21,734$332,145
3$4,326$21,462$327,819
4$4,616$21,172$323,203
5$4,925$20,863$318,277
Monthly payment$2,543.41

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Montana at a glance

Effective property tax
0.69%
Rank (1 = highest)
33rd of 51
Median home value
$425,400
Median tax bill
$2,939/yr

On the same $400,000 home, property tax in Montana adds about $230.00/month, versus $296.67/month at the national rate.

Montana mortgage payments by home price

Home pricePrincipal & interestProperty taxTotal / month
$225,000$1,137.72$129.38$1,417.10
$325,000$1,643.38$186.88$1,980.26
$425,000(median)$2,149.03$244.38$2,543.41
$650,000$3,286.75$373.75$3,810.50
$850,000$4,298.06$488.75$4,936.81

20% down, 6.5% 30-year fixed (example rate), 0.69% property tax, $1,800/yr insurance, no HOA. Also see: how much house you can afford in Montana.

Mortgage calculators for other states

Assumptions

  • Fixed interest rate for the full term.
  • Property tax, insurance and HOA stay constant (in reality they usually rise over time).
  • PMI applies only when the loan is over 80% of the home price, and stops once the balance reaches 78% of the original price.
  • Extra payments go entirely to principal.
  • Montana figures: Effective rate = ACS median real estate taxes paid ÷ ACS median value, owner-occupied housing units, by state. Source: US Census Bureau ACS 2024.

Frequently asked questions

What is the property tax rate in Montana?+

The effective property tax rate in Montana is about 0.69% of home value a year (median taxes paid $2,939 on a median home worth $425,400). That's the 33rd highest of 50 states and DC, and lower than the national 0.89%. Your actual bill depends on your county, city and exemptions.

What's the mortgage payment on a median-priced home in Montana?+

For a $425,000 home with 20% down at an example 6.5% 30-year rate, the payment is about $2,543.41 a month, including $244.38 of property tax and $150.00 of insurance.

How much income do I need to buy a home in Montana?+

To afford the median Montana home ($425,000) under the 28/36 guideline with 10% down and no other debts, you'd need roughly $128,000 a year in gross income at a 6.5% rate.

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Last reviewed October 14, 2026. Calculator version 1.0.0. Sources: US Census Bureau, ACS 2024 1-year, Table B25103 (Median Real Estate Taxes Paid) · US Census Bureau, ACS 2024 1-year, Table B25077 (Median Value, Owner-Occupied). Results are estimates for educational purposes, not financial, tax or lending advice. How we check our numbers.