Montana rental property calculator

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Montana guide

Rental Property in Montana: What the Numbers Actually Look Like

  • Montana's 2025 reform (HB 231 / SB 542) created a Homestead Rate that qualifying long-term rentals can claim — property occupied or leased at least 7 months a year — while short-term rentals and second homes pay the higher rate. It must be actively claimed each year; the 2026 deadline was March 1, 2026.
  • Montana's average homeowners premium is recorded at $2,829 a year at $300,000 of dwelling coverage, but that is a midpoint of a genuinely wide disagreement. Published reads span $2,399 to $3,765 — a range worth 0.26 points of cap rate and $113.83 a month on the worked example. Treat it as a reference tier, not a measurement.
  • The percentage deductible on a Montana policy is for wind and hail, not wildfire. Insurify puts the state average at 1.10% of dwelling coverage ($3,786); on a $300,000 limit a 1% deductible is $3,000 against a $1,000 flat deductible for everything else — and an ordinary summer hailstorm invokes it, because there is no storm-naming trigger.

Two things about Montana surprise people, and both change a landlord's arithmetic.

The first is good news, and you have to file for it. Montana's 2025 property tax reform (HB 231 and SB 542) created a Homestead Rate beginning with the 2026 tax year — a reduced, tiered rate that applies to owner-occupied principal residences and to qualifying long-term rentals occupied or leased at least seven months a year. Second homes, short-term rentals, and non-residential property pay the higher rate. Roughly 80% of Montana homes saw a net tax cut, averaging over $500 a year. It is not automatic: it must be affirmatively claimed with the Department of Revenue each year, and the 2026 deadline was March 1, 2026.

Montana is one of very few states where a long-term rental is treated like a home for property tax purposes. It is also a state where forgetting a form moves you into the penalty tier.

The second is that the percentage deductible on a Montana policy is for hail, not wildfire. Insurify's 2026 hail analysis puts Montana's average wind/hail deductible at 1.10% of dwelling coverage — $3,786 — high enough to sit in the same band as the Plains hail states. Montana recorded roughly 20 hail events in 2025, some stones reaching four inches. Wildfire, meanwhile, is not managed with a deductible at all. It is managed with non-renewal, and there is no FAIR Plan to catch what falls through.

If you take one thing from this article: file the Homestead Rate claim, and read the wind/hail deductible off the declarations page. Those are the two Montana-specific numbers, and neither is in a listing.

A note before you start: this is general educational information about how rental property arithmetic works in Montana. It is not investment, tax, insurance, or legal advice, and it is not a recommendation about any property. Talk to a Montana CPA about tax treatment, a licensed Montana insurance agent about a real quote, and a Montana real estate attorney about anything contractual.

Read the full Montana guide →21 min read · Updated 2026-08-28