Big Sky, MT Airbnb & Short-Term Rental Regulations 2026
Everything you need to know about operating a legal short-term rental in Big Sky, Montana. Licensing, taxes, zoning, and 2026 compliance requirements.
Big Sky STR Regulation Overview
Big Sky is one of Montana's most lucrative and lightly regulated vacation-rental markets, but its governance is unusual: the community is unincorporated, sitting mostly in Gallatin County with a slice in Madison County, while the Big Sky Resort Area District handles the 4% local resort tax. There is no city hall imposing permit caps or primary-residence rules, so the real constraints are a combination of state licensing, county health review, resort-tax registration, and — most importantly — private subdivision and HOA covenants, some of which prohibit STRs outright. Gallatin County zoning only references short-term rentals in two districts, leaving much of the area effectively unzoned for this use. For investors, that means a relatively open regulatory door paired with premium ski-and-summer demand near Big Sky Resort and Yellowstone, producing some of the highest daily rates in the state. The catch is doing covenant due diligence before you buy.
Big Sky STR Quick Facts
| STR Legal? | Yes |
| License Required | Yes |
| License Cost | State Public Accommodation License (Tourist Home) is tiered by room count — about $40/year for a typical 1-10 room home — plus a county plan review/inspection fee and possible water/wastewater review; Big Sky Resort Tax STR registration is annual and free via MUNIRevs |
| Lodging Tax | 12% combined |
| Occupancy / Density Caps | None — Big Sky has no jurisdiction-wide cap on the number of STR permits or occupancy density, though individual subdivisions and HOAs may impose their own limits or bans. |
| Primary Residence Required | No |
State Public Accommodation License
Montana requires every STR to hold a Public Accommodation License (Tourist Home class) administered with local health department review. The state license fee is tiered by room count — roughly $40/year for a typical 1-10 room home — and in Gallatin County the process runs through the county health permit, confirming basic safety and sanitation standards before you can legally host.
Big Sky Resort Tax registration (4%)
Properties inside the Big Sky Resort Area District must register annually and collect the 4% resort tax on the full listing price, including cleaning fees, for stays of 30 days or fewer. Registration is free and handled through the MUNIRevs online portal, with returns generally filed monthly.
State lodging taxes (8%)
On top of the resort tax, Montana imposes a 4% Lodging Facility Use Tax and a 4% Lodging Sales Tax on short stays, totaling 8%. Airbnb and Vrbo collect and remit some of these, but hosts remain responsible for confirming full compliance and resort-tax collection.
Light county zoning
Gallatin County recognizes short-term rentals only in the Gallatin Canyon/Big Sky and Hebgen Lake zoning districts; elsewhere the area is largely unzoned, where there are no county-zoning restrictions on the use. Adding STR use to a zoned district can require a Zone Text Amendment or Administrative Determination.
HOA and subdivision covenants control
Because there is no municipal STR ordinance, private covenants are often the binding rule. Some Big Sky subdivisions and condominium associations restrict or fully prohibit nightly rentals, so reviewing CC&Rs before purchase is essential.
No permit cap or residency rule
Big Sky imposes no jurisdiction-wide limit on the number of STRs and no requirement that the property be an owner's primary residence, making it friendlier to non-resident investors than many resort towns.
Big Sky STR Market Performance
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Frequently Asked Questions
Yes. Big Sky has no ban or jurisdiction-wide permit cap on short-term rentals. The area is unincorporated, governed by Gallatin County, a small part of Madison County, and the Big Sky Resort Area District. Operators must hold a state Public Accommodation License, register for the resort tax, and comply with any HOA or subdivision covenants, which are often the strictest constraint.
The combined rate is about 12%: a 4% Montana Lodging Facility Use Tax, a 4% Montana Lodging Sales Tax, and a 4% Big Sky resort tax (a 3% base plus a 1% infrastructure rate). The resort tax applies to stays of 30 days or fewer on the full price including cleaning fees, and is filed through the MUNIRevs portal. Stays of 30 consecutive days or longer are exempt from the resort tax.
Yes. Montana requires a Public Accommodation License with Gallatin County health department review — the state license fee is tiered by room count, roughly $40/year for a typical home — and you must register annually (free) with the Big Sky Resort Area District to collect the 4% resort tax. There is no separate Big Sky city business license because the community is unincorporated, but state registration for lodging and sales taxes is also required.
No. Big Sky does not impose a jurisdiction-wide occupancy cap, density limit, or owner-occupancy requirement, which makes it accessible to out-of-state investors. However, individual subdivisions and homeowners associations may set their own occupancy limits, guest rules, or outright STR prohibitions, so the binding caps are usually private rather than governmental.
Big Sky is a premium market with some of Montana's highest daily rates. Recent third-party data shows an average daily rate in the mid-$500s and roughly 55-56% annual occupancy, with median annual revenue around $119K for the period spanning late 2024 through mid-2025. Well-located ski-in or luxury homes can substantially exceed those figures during peak winter and summer seasons.
Informational only — verify current rules with local authorities before investing. Sources: www.gallatinmt.gov · resorttax.org · revenue.mt.gov · dphhs.mt.gov · www.airdna.co
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