Montana sales tax nexus is a question with a short answer and a longer one. The short answer: Montana has no general statewide sales tax, so the economic-nexus thresholds that trigger collection obligations in other states after South Dakota v. Wayfair do not apply here. The longer answer is that Montana taxes lodging, short-term vehicle rentals, and sales inside designated resort communities, and it enforces corporate income tax against companies with in-state activity. Whether you owe anything depends entirely on what you sell and where.
Why Wayfair Doesn’t Reach Montana
Montana is one of five states without a general sales tax on retail transactions. The 2018 Wayfair decision let states require remote sellers to collect sales tax based on economic activity rather than physical presence, but the ruling has no practical effect in Montana because there is no general sales tax to collect.1Montana Department of Revenue. Sales Tax Guidance for Montana Business and Residents An out-of-state retailer shipping goods to Montana customers does not register for or remit a statewide sales tax, no matter how large the sales volume.
That is where many businesses stop reading, and it is a mistake. Montana replaces the broad tax with narrower ones aimed at hospitality, lodging, and vehicle rentals, plus local resort taxes in tourism-heavy towns. If your business touches any of those, the collection duty is real.
Lodging Tax Nexus
Montana imposes a combined 8% tax on lodging, split between a 4% lodging facility use tax and a 4% sales tax on accommodations.2Montana Department of Revenue. Lodging Facility Sales and Use Tax The use tax applies to anyone staying in a hotel, motel, campground, vacation rental, or similar short-term accommodation.3Montana State Legislature. Montana Code 15-65-111 – Tax Rate The seller of the accommodation collects both taxes and remits them to the Department of Revenue.
Remote businesses hit a nexus question here. Short-term rental marketplaces that facilitate bookings for Montana properties must register with the Department of Revenue and collect, report, and remit both taxes on behalf of property owners.4Montana State Legislature. Montana Code 15-68-111 – Short-Term Rental Marketplace Registration — Collection of Tax An online travel agency with no office or employees in Montana still has a collection duty if it processes payments for Montana-based properties. If you list your cabin on a platform that says it handles the tax, confirm the platform is actually registered and remitting. The state can pursue the property owner if the marketplace fails.
Rental Vehicle Tax Nexus
Montana charges a 4% sales and use tax on the base rental charge for vehicles rented for fewer than 30 consecutive days.5Montana Department of Revenue. Rental Vehicle Tax The vehicle definition is broader than most people assume. It covers cars and trucks under 22,000 pounds, motorcycles, motorboats, sailboats, off-highway vehicles, and quadricycles, provided the vehicle is rented without a driver and carries 15 or fewer passengers. Farm vehicles and equipment are excluded.
Separate rentals cannot be stacked to clear the 30-day threshold. A 10-day rental followed by a 25-day rental is two short-term rentals, each taxable.6Legal Information Institute. Montana Administrative Rules 42.14.1202 – Exempt Rental Vehicle Sales Third-party rental platforms must register for a seller’s permit and collect the tax, mirroring the marketplace facilitator rule that applies to lodging.5Montana Department of Revenue. Rental Vehicle Tax
Resort Community Taxes
Certain tourism-heavy communities impose their own resort taxes on goods and services sold within their boundaries. State law authorizes a tax of up to 3% on qualifying sales, with an additional 1% allowed if the extra revenue is dedicated to infrastructure.7Montana Legislature. Montana Code 7-6-1503 – Limit on Resort Tax Rate — Goods and Services Subject to Tax Big Sky collects the full 4%.8Montana Resort Tax Association. Big Sky
Communities currently authorized to collect include incorporated municipalities and unincorporated areas:
- Municipalities: Whitefish, Red Lodge, Virginia City, and West Yellowstone.
- Unincorporated areas: Big Sky, Cooke City, Gardiner, St. Regis, Craig, and Wolf Creek.
The tax applies to sales by hotels, restaurants, bars, destination ski resorts, and other recreational facilities, as well as sales of “luxuries,” which state law defines broadly as gift items and goods typically sold to tourists.9Montana Legislature. Montana Code Annotated 7-6-1501 – Definitions Unprepared food, medicine, medical supplies, appliances, hardware, and other daily necessities are excluded.
Nexus for resort taxes is purely geographic. If you sell taxable goods or services inside a resort community’s boundary, you owe the tax, and each community runs its own registration process. A business operating in more than one resort area needs separate registrations. Sellers at seasonal markets, pop-ups, and festivals routinely overlook this; even temporary activity triggers the duty, and the local administering authority can pursue uncollected taxes retroactively.
Corporate Income Tax Nexus
Even without a sales tax, Montana enforces corporate income tax at 6.75% against businesses with sufficient connection to the state.10Montana Department of Revenue. Montana Corporate Income Tax The threshold is broad: generally, any activity performed in Montana beyond the solicitation of sales of tangible goods creates a filing obligation.11Montana Department of Revenue. Nexus
Federal Public Law 86-272 offers limited protection, but only for companies whose in-state activity is restricted to soliciting orders for tangible personal property that are approved and shipped from outside Montana. If you sell services, digital products, or licenses to Montana customers, PL 86-272 does not shield you. The Department of Revenue publishes administrative rules at Title 42, Chapter 26, Rules 501 through 511 that spell out which activities are protected and which are not.11Montana Department of Revenue. Nexus
For multi-state businesses, Montana uses a single-receipts-factor apportionment formula for tax years beginning after December 31, 2024, so Montana taxable income tracks the share of sales occurring in Montana. Companies with Montana gross sales of $100,000 or less and no real or tangible property in the state may qualify for an alternative gross sales tax rate of 0.5%, with a $50 minimum.10Montana Department of Revenue. Montana Corporate Income Tax
One boundary worth flagging: businesses with equipment located in Montana may also owe personal property tax, with a full exemption for 2026 if the statewide market value of that equipment is $1 million or less.12Montana Department of Revenue. Reminder of Personal Property Reporting Requirement That is a separate obligation from any sales-type tax, driven by physical property rather than nexus in the collection sense.
Registering If You Have an Obligation
Businesses that owe lodging tax, rental vehicle tax, or corporate income tax register through the Montana Department of Revenue’s TransAction Portal (TAP). Before starting, pull together your Federal Employer Identification Number (or Social Security Number for a sole proprietorship), your legal business name as it appears on official filings, your physical and mailing addresses, and the date you first began taxable activity in Montana.13Montana Department of Revenue. Montana Department of Revenue Business Registration Form The start date matters; the Department uses it to calculate any back-tax liability.
During registration, you choose the tax types you are liable for, and the system assigns a filing frequency, monthly or quarterly, based on volume. Marketplace facilitators should identify themselves as such so the Department opens the right account type. Payment runs through TAP, usually by ACH debit, though you can print a voucher and mail a check. Resort taxes are remitted to the local administering authority rather than the state, so confirm each resort community’s procedures separately.
If You Should Have Been Collecting and Weren’t
Montana’s penalty structure is more aggressive than many businesses expect. The late filing penalty is the greater of $50 or 5% of the tax due for each month a return is late, capped at 25% of the total tax owed.14Montana Legislature. Montana Code 15-1-216 – Uniform Penalty and Interest Assessments for Violation of Tax Provisions A return five months late hits the cap. Late payment penalties on lodging and rental vehicle taxes run 1.5% per month on the unpaid balance, capped at 15%; most other taxes carry 0.5% per month, capped at 12%. The late payment penalty can be waived if you pay the full amount within 30 days of the Department’s first notice. Interest for 2026 runs at 10.25% annually, computed daily from the original due date, and applies whether or not the Department has told you about the deficiency.15Montana Department of Revenue. Interest and Penalties
Businesses that discover an unmet obligation can get ahead of the Department through its Voluntary Disclosure Agreement program. A VDA limits the lookback to five tax years and waives all penalties for covered periods. You still owe the taxes and interest, but losing the penalty layer saves real money.16Montana Department of Revenue. Voluntary Disclosure Program You are not eligible if you have already filed a return for that tax type within the past five years, if the Department has contacted you about an audit or assessment, or if you are under criminal investigation. You must come forward on your own, register with the Secretary of State if you are a business entity, and commit to filing and paying going forward. If the agreement later becomes void through noncompliance, the Department can reinstate the waived penalties retroactively.