A buyer can do everything the standard checklist tells them to do. Confirm the parcel sits in a zone where short-term rentals are allowed. Pull the permit. Register the business. Book the fire inspection. And still end up owning a house that cannot legally take a guest for a single night, because the subdivision's covenants said no before the city ever weighed in. In Whitefish in 2026, that scenario is not hypothetical. It is the outcome of a Montana Supreme Court ruling handed down last year, layered on top of a new state property tax structure that treats the exact same house differently depending on how it gets used. Two separate systems, city zoning and private covenants, now determine whether a Whitefish short-term rental is legal, and a third, the state's tax code, determines what it costs to hold one. A buyer who only checks the first system has checked one gate out of three.
The Same House, Two Tax Bills
Montana finished phasing in a new property tax framework this year that splits residential property into two tracks. A primary residence or a qualifying long-term rental gets a tiered rate that starts around 0.76 percent and climbs in steps up to 1.10 percent, applied up to a ceiling of $1,512,000 in assessed value, a figure the state set at four times its 2026 statewide median residential value of $378,000. A second home or short-term rental skips the tiers entirely and pays a flat 1.90 percent on its full assessed value, with no ceiling that pushes the rate back down.
For context on what that means in dollar terms locally, Zillow's home value index put the typical Whitefish house at $871,592 as of August 2026, up 1.4 percent over the year, against $650,765 for Flathead County overall. A house at the Whitefish typical value taxed at the primary/long-term tier sits well under the $1,512,000 ceiling and pays the lower graduated rate the whole way up. The same house classified as a second home or short-term rental pays 1.90 percent on every dollar of that assessed value, with no bracket that ever brings the effective rate down. The classification, not the house, is what moves the bill.
| Primary residence / qualifying long-term rental | Second home / short-term rental | |
|---|---|---|
| Rate structure | Tiered, roughly 0.76% to 1.10%, up to $1,512,000 in value | Flat 1.90% on full assessed value |
| Qualifying rule | Owner-occupied, or rented in stretches of 28 days or longer for at least seven months of the year | Anything shorter or more seasonal, including nightly and weekly rentals |
| Enrollment | Automatic for 2025 rebate recipients who still live in the same house; others apply during the state's window | No application required, this is the default classification |
Qualifying for the Lower Rate Isn't Automatic
The tiered rate is not something a buyer inherits by default. Property owners who received Montana's 2025 $400 property tax rebate and still lived in the same house were enrolled automatically for 2026. Everyone else had to apply between December 1, 2025 and March 1, 2026, a window the state later extended to March 20, 2026. The application for the 2027 tax year opened May 4, 2026 and closes March 1, 2027, which means a buyer who closes on a Whitefish house mid-year is working against a fixed calendar, not a rolling one.
The long-term rental path has its own bar to clear. To qualify, a property generally needs to be rented in stretches of 28 days or longer for at least seven months of the year, with the application asking for each month's rent alongside the prior year's income and expenses. The state has also flagged a specific abuse it is watching for: a lease to a family member at nominal rent. If that arrangement gets disregarded on review, the house is reclassified and the owner owes back taxes, with a false application carrying a penalty of three times the extra tax due, plus interest. A buyer weighing whether to run a house as a long-term rental for the lower rate needs the math to work at real market rent, not at a favor rate to a relative.
The City Says Yes, the Subdivision Says No
Zoning is the piece most STR guides stop at, and it is where the city's own rules are genuinely clear. Short-term rentals are permitted only in five zoning districts inside Whitefish city limits: WB-3, WRR-1, WRR-2, WRB-1, and WRB-2. A property in one of those zones can move through the city's process, which requires a Short-Term Rental Permit and Business Registration, an annual Fire Marshal inspection, a Montana Public Accommodation License administered through the Flathead City-County Health Department, and monthly resort tax reporting.
What the zoning map does not show is what the subdivision's own recorded covenants allow, and in July 2025 the Montana Supreme Court made clear that covenants can override everything the city approved. In Brandt v. R&R Mountain Escapes, LLC, the court upheld a ruling that private covenants near Whitefish barred short-term rentals outright, even though the property owner held a valid Flathead County conditional use permit. The subdivision's 1990 covenants limited lots to "country residential" use and banned "any other commercial purpose whatsoever." Reading those provisions together, the court found the short-term rental in question was "more akin to an apartment," a use the covenants had already prohibited.
The short-term rental was "more akin to an apartment," a use the subdivision's covenants had already prohibited.
The ruling turned on that specific subdivision's wording, so it does not ban short-term rentals statewide, and a different set of covenants could read differently. But it establishes that a county or city permit is not the last word. A buyer who confirms zoning and stops there has confirmed nothing about what a decades-old covenant, written before short-term platforms existed, might say about "commercial purpose" on that particular lot.
What This Means Before You Write an Offer
The practical sequence changes once you know both systems are in play. Confirming zoning tells you whether the city will consider an application. Reading the recorded covenants, in full, tells you whether the lot itself allows the use regardless of what the city says. Those are two different documents, and skipping the second one because the first one cleared is exactly the gap the Brandt ruling exposed.
The tax question runs on its own separate track. Before assuming a purchase will carry at the lower tiered rate, it is worth running the numbers both ways, since a long-term rental use that misses the 28-day, seven-month qualifying rule falls back to the 1.90 percent flat rate the same as an outright short-term rental would. And if the plan is a long-term lease to a family member, the state's own guidance signals that arrangement draws scrutiny if the rent does not reflect market terms.
None of this changes what makes a Whitefish property attractive to an investor. Skiing at Whitefish Mountain Resort and year-round access to the lake and surrounding trails are still the draw. What has changed is how many separate approvals now stand between a signed purchase agreement and a legally operating rental, and the fact that two of those approvals, the covenant reading and the tax classification, run on tracks the zoning map never touches. For a broader look at what to weigh when buying investment property in this market, our earlier guide on key considerations for Whitefish investment property covers ground this piece does not duplicate.
A Few Questions Worth Asking Directly
Does a city short-term rental permit override HOA or subdivision covenants? No. The Brandt ruling confirmed that recorded covenants can bar short-term rental use even where a city or county permit has been issued. The permit and the covenant are separate approvals, and both have to clear.
If my long-term rental doesn't hit the 28-day, seven-month threshold, what happens? The property falls into the second home / short-term rental classification by default, which means the flat 1.90 percent rate applies to the full assessed value rather than the tiered rate.
Can I apply for the primary residence or long-term rental rate anytime? No. The state runs a defined application window each year, and missing it means waiting for the next cycle. Confirm current dates directly with the Montana Department of Revenue before assuming a purchase timeline lines up.
Buying in a zone that allows short-term rentals is the easy part to verify. The covenant language and the tax classification take more digging, and they are the two places a Whitefish purchase can still go sideways after closing. If you are weighing a specific parcel against these rules, All Montana Real Estate can help you work through what the recorded documents on that lot actually say before you write an offer.
