Compare 15-year and 30-year mortgage options for Montana homes. See the monthly payment difference and total interest savings on the $430K median home.
The choice between a 15-year and 30-year mortgage in Montana comes down to monthly cash flow versus total cost. On the $430K median home with 10% down, a 30-year mortgage at 6.5% gives you a total PITI of $2,886/mo. A 15-year mortgage at 6.0% (15-year rates are typically 0.5-0.75% lower) pushes that to $3,706/mo — about $820 more per month. But you save approximately $293K in total interest and own the home free and clear in half the time.
At Montana's moderate price level, the $820 monthly difference between loan terms is a genuine decision point. Consider your career trajectory and income stability: if you expect steady income growth, the 15-year term locks in forced savings through faster principal reduction. If income is variable or you have other financial priorities (retirement savings, children's education), the 30-year term provides breathing room while you can still make occasional extra payments when cash flow allows.
Whichever term you choose, the MBOH Regular Bond Program program (up to $15,000 dpa) can ease the upfront burden. Use the full 15 vs 30 year mortgage comparison tool to model both scenarios with your actual numbers — including Montana-specific property taxes and insurance — and see the month-by-month difference in equity growth, interest paid, and total cost.
Montana Housing at a Glance
Median Home Price
$430K
Montana statewide
Property Tax Rate
0.74%
$265/mo on median
Avg Closing Costs
$6K
1.5% of purchase price
Homeowners Insurance
$2,100/yr
$175/mo
Montana First-Time Buyer Program
MBOH Regular Bond Program
Down payment assistance: Up to $15,000 DPA
Common Questions
Is a 15-year mortgage worth it in Montana?+
A 15-year mortgage on the Montana median home saves approximately $293K in total interest compared to a 30-year term, but the monthly PITI jumps from $2,886 to $3,706 — an increase of $820/mo. It is worth it if you can comfortably afford the higher payment while still saving for retirement and maintaining an emergency fund. If the higher payment would strain your budget, the 30-year term with occasional extra payments is a safer approach.
What is the rate difference between 15 and 30 year mortgages?+
15-year mortgage rates are typically 0.5% to 0.75% lower than 30-year rates. As of 2026, if 30-year rates are near 6.5%, 15-year rates would be approximately 5.75%-6.0%. This rate advantage compounds the savings: you pay less interest per dollar borrowed AND you borrow for half as long. On the $430K Montana median home, this combination produces savings of roughly $293K over the life of the loan.
Can I refinance from a 30-year to a 15-year mortgage in Montana?+
Yes. If rates drop or your income increases after purchase, refinancing from a 30-year to a 15-year mortgage is a common strategy. Closing costs for a refinance in Montana typically run 1-2% of the loan balance. The breakeven on those costs is usually 2-3 years, so it makes sense if you plan to stay in the home at least that long. Alternatively, you can simply make extra payments on your 30-year loan to achieve a similar effect without paying refinance fees.