Mortgage Payment Estimates for Montana by Home Price

Why the Montana payment looks the way it does

Between the two non-financing costs on a $400,000 home — the price point closest to the statewide median — property tax edges out insurance in Montana: $227/mo against $162/mo. Montana carries a property tax rate on the lower side of the middle of the pack, ranked 33rd nationally, per the Tax Foundation. Home prices are the moving piece: Montana's median fell 2.8% over the past year, per Zillow, which is already baked into the numbers above.

Montana's median home price slipped 2.8% over the past year, per Zillow — a mild pullback that changes the arithmetic above only for future buyers, since the rate and tax figures here are locked to today's price. Prices vary widely by metro: Bozeman at $745,000, Whitefish at $920,000, Missoula at $520,000, Billings at $380,000, all per Zillow ZHVI 2026.

The math, step by step

Using the price point closest to Montana’s own median — $400,000 — here is how every line item adds up to the monthly payment:

Start with financing. At Freddie Mac Primary Mortgage Market Survey's 2026-06 rate of 6.4% on a standard 30-year fixed loan, a $320,000 loan (20% down on a $400,000 home) amortizes to a principal-and-interest payment of $2,002/mo. Put down only 10% instead and the loan grows to $360,000, which raises principal and interest to $2,252/mo — $250 more every month for a loan that's $40,000 larger, before tax, insurance, or PMI enter the picture.

Property tax adds $227/mo, derived by applying Montana's 0.7% effective rate (Tax Foundation, statewide average across all taxing jurisdictions) to the home's assessed value and dividing by twelve. That statewide figure hides real county variation: Silver Bow County (Butte) taxes at 0.9% against 0.4% in Treasure County — a 2.1x spread between the two, so the true monthly tax line on any specific property in Montana depends heavily on which county it sits in. How that assessed value itself gets set also varies: Annual assessment by Department of Revenue. Statewide reappraisal cycle completed periodically. And the $227/mo figure above is the pre-exemption number: an owner-occupant can bring it down further — Owner-occupied primary residences are classified as Class 4 property and taxed at 1.35% of market value (vs. 1.89% for non-owner-occupied). Elderly homeowner assistance program (EHHP) available for seniors 62+ with qualifying income.

Wildfire and 3 other named risks are the kind Montana insurers price into every policy — the reason the $1,942/yr average premium (÷12 = $162/mo) sits where it does; this is the same per-price-point figure the table above sums, so the two always agree by construction. Unlike principal and interest, that line is flat: it doesn't move with the down payment. Note: this is an earlier snapshot of the same Insurance.com series RealCostIQ now publishes at $3,221/yr in the Insurance section below — the PITI math above hasn't been rebuilt against the newer figure yet, so treat the monthly line here as the modeling basis and the figure below as the current published rate.

Those three lines total $2,391/mo at 20% down — matching the table above, since 20% down clears the PMI threshold here. 20% down ($80,000) skips PMI. 10% down ($40,000) adds it at 0.46% of the loan a year (mortgage-insurer rate card, 720–739 credit score), or $138/mo — $2,778 total instead of $2,390. You can ask the lender to cancel it around month 94, when the balance reaches $320,000 (80% of the original price) — roughly $12,972 paid in before then. If you don't ask, the Homeowners Protection Act requires it to end automatically when the balance is scheduled to reach 78%.

At this $400,000 price point specifically: qualifying at 20% down takes $102,434/yr under the 28% rule ($79,671/yr under the looser 36% rule); at 10% down it's $119,071/yr — $16,637 more, a meaningful jump — dropping to 10% down doesn't just mean a smaller check at closing, it raises the bar to qualify. A household earning Montana's own median income of $63,268 falls short of the 20%-down bar at this specific price point, by $39,166 — this price point requires an above-median income here. At 10% down, where the higher loan amount raises the bar further, that same median household falls short by $55,803.

What financing costs across the price range

Total interest over the full 30-year term at 20% down runs from $200,291 on a $200,000 Montana home to $751,093 on a $750,000 one — both figures assume the loan is held to term with no extra principal payments. At the $400,000 price point used throughout this page, that works out to $400,583 in interest on a $320,000 loan. At 10% down instead, PMI adds $6,486 in total premiums on the $200,000 home before it cancels, and $24,323 on the $750,000 home — cost that buys nothing but the right to put down less cash up front, and that a 20%-down buyer avoids at either price.

At 20% down and the 28% front-end DTI rule, a $200,000 home in Montana needs $54,685/yr to qualify, while a $750,000 home needs $185,994/yr. That's the binding number for a buyer with no other debt. Once other debt is added to the picture, the 36% back-end ratio is the one that governs, and it takes less income to clear — $42,533/yr and $144,662/yr for the same two homes — but only because it's now competing with a car payment or student loan for that same 36%, not because the home got cheaper to finance. That statewide range plays out locally too: Billings's median of $380,000 and Whitefish's median of $920,000 sit on opposite ends of the same qualifying-income curve.

Can a median-income household actually afford this?

The gap is severe: a household earning Montana's median income of $63,268 is $55,618 short — 88% below — the $118,886/yr a lender would want to see on the median-priced home at 20% down at 7.03% (Freddie Mac PMMS, week of September 24, 2026). Lenders check two DTI thresholds, not one: the 28% front-end ratio covers housing costs alone ($102,434/yr at this page's $400,000 price point and its 6.4% rate), while the looser 36% back-end ratio also counts other debt and takes less income to clear on housing alone — $79,671/yr here. The catch: that 36% is shared with a car payment or student loan, so a buyer carrying other debt can end up needing MORE total income than the 28% figure suggests, not less. The two income figures use different rates — 6.4% for this page's price points, 7.03% for the median-home figure — so they are not directly comparable. The price a median-income household can actually afford under the 28% rule at 7.03% (Freddie Mac PMMS, week of September 24, 2026) is $228,824 — $219,776 below the statewide median of $448,600. That gap is not uniform statewide: Gallatin County, Missoula County, Flathead County price out median earners fastest, while Petroleum County, Wibaux County, Carter County stay within reach on a median income.

Cash to close

Montana's closing costs sit at the high end of typical for the country — 2.3% of the purchase price (Below average — no transfer tax; total costs moderate despite high home prices). On this $400,000 home that's $9,200. Title insurance ($1,500) is a relatively small slice of that figure — the rest is lender, escrow, and recording fees. Layered on top of the down payment, total cash to close runs $89,200 at 20% down or $49,200 at 10% down — the closing-cost portion is identical either way; only the down payment changes. Unlike property tax — which runs 0.9% in Silver Bow County (Butte) versus 0.4% in Treasure County — closing costs don't swing nearly as much by county; the figure above is a reasonable statewide planning number wherever in Montana the home sits. Montana has no real estate transfer tax. No county or municipal transfer taxes are charged. Montana does not require an attorney at closing, though buyers may hire one at their own cost. Once the sale closes, Montana homeowners can file for the homestead exemption described in the property-tax section above — it isn't automatic, and it only reduces the tax line going forward, not any cost at the closing table itself.

Insurance and flood risk

Montana homeowners pay an average of $3,221/yr for homeowners insurance at $300,000 dwelling coverage ($268/mo), per Insurance.com — Average homeowners insurance rates by state (Rate Analysis 2026) — against a national average of $2,765/yr. The named factors — each explained below — are wildfire, flooding, extreme cold causing pipe freeze and heating system failures, hailstorms. That ranks 15th most expensive of the 51 states and D.C. — 117% of the national average. The private insurance market has not seen the large-scale carrier exits reported in some higher-risk states. Premiums vary sharply by county: Carter County (~$800/yr), Fallon County (~$850/yr), Prairie County (~$900/yr) run cheapest, while Ravalli County (~$2,200/yr), Missoula County (~$2,100/yr), Flathead County (~$2,000/yr) run highest — the statewide average above blends both ends.

Wildfire — rapidly expanding risk — 2023 was a record fire year in Montana is as much an availability problem as a pricing one — insurers in the highest-risk zones have stopped writing new policies there entirely, not just raised rates. Flooding — Clark Fork, Yellowstone rivers; record 2022 Yellowstone floods is typically excluded from a standard homeowners policy outright, which is why NFIP or private flood coverage is a separate line item, not folded into the premium above. Extreme cold causing pipe freeze and heating system failures are a seasonal claim pattern — frozen pipes and ice damming are common enough that insurers build the expected cost into every renewal rather than treating a hard winter as a one-off. Hailstorms — eastern Montana high plains are a frequency risk: common enough in an ordinary year to move the loss-ratio math at every renewal, not just after a single storm.

Rent vs. buy in Montana

The median asking rent in Montana is $1,450/mo, putting the statewide price-to-rent ratio at 25.8 — favors renting in bozeman and missoula after pandemic price surge; billings and smaller markets approaching neutral. On the median-priced home, RealCostIQ's breakeven math puts the point where buying overtakes renting at 8.5 years of ownership, before accounting for any home-price appreciation. Whitefish (45.0) and Billings (19.5) sit far enough apart that the statewide ratio above is a poor stand-in for either one specifically.

Loan limits

The 2026 conforming loan limit for a single-unit home in Montana is $832,750 statewide — Montana has no FHFA-designated high-cost county, so that ceiling applies everywhere in the state. A loan above it is a jumbo loan, which typically carries stricter underwriting and a different rate. A buyer financing the statewide median home at 20% down borrows only about $358,880 — comfortably under the limit, with $473,870 of headroom before jumbo underwriting would apply.

Down payment assistance

Montana's primary down payment assistance program is MBOH Bond Advantage DPA, administered by Montana Board of Housing (MBOH). It offers up to $22,350 as a deferred-payment loan on homes up to $481,176 — comfortably above Montana's own median home price, so the cap isn't the binding constraint for a typical buyer here. Montana doesn't list a second state-run program — Montana Board of Housing (MBOH) is the single point of contact for state-level down payment help here, rather than a menu of competing options.

First-time buyer mortgage programs

Beyond down payment assistance, Montana first-time buyers can also use Montana Board of Housing Regular Bond Program, run by Montana Board of Housing (MBOH): 30-year fixed-rate FHA, VA, USDA, or conventional mortgage at below-market rates. It covers loans up to $832,750 with as little as 3% down, for household incomes up to $135,000 depending on household size and county. Eligibility requirement: must not have owned a primary residence in the past 3 years; minimum 620 credit score. Available through MBOH-approved lenders statewide; homebuyer education required. A second program, MBOH Down Payment Assistance Program (Montana Board of Housing (MBOH)), covers second mortgage — 0% interest, deferred, up to $10,000 in assistance. Up to $10,000 for down payment and closing costs.

Beyond PITI: what else the payment doesn’t cover

Isolate just the mortgage — principal and interest, nothing else — and the payment on Montana's median-priced home is $2,242/mo. The number a buyer should actually budget to is $3,422/mo, nearly half again on top of the mortgage payment (53% higher). The single biggest add-on in Montana is maintenance reserves, at $561/mo — ahead of every other non-mortgage line item in the true-cost breakdown, tax and insurance included. Property tax is the runner-up at $254/mo — the two together are the main reason the true-cost figure runs so far above the mortgage-alone number.

PITI is not the full cost of owning. RealCostIQ's true-monthly model adds $561/mo — $6,729/yr — in maintenance reserves (1.5% of home value annually — extreme cold winters require robust insulation and heating system redundancy; wildfire defensible space maintenance is an ongoing annual cost in fire-prone areas), and $115/mo in electricity plus $88/mo in gas ($203/mo total, per the U.S. Energy Information Administration). Combined, that pushes the true monthly cost of the median home to $3,422 — true monthly cost is 53% higher than mortgage alone. That reserve isn't arbitrary: a typical HVAC system here runs 15-20 years (cold winters; propane heating common in rural areas), and a typical roof runs 25-30 years (dry climate; snow load a concern in mountain areas; minimal humidity extends lifespan), per Fannie Mae 1-2% guideline; Bankrate Hidden Costs Study 2025 — both figures already price in Montana's own climate rather than a national average. The 1.5% reserve rate is sized to replace both on that state-specific schedule, without a special assessment or a credit-card repair.

See the full Montana homebuyer resource page for property tax by county, first-time buyer programs, and utility costs, or compare payments across all eight price points.