Montana sales tax at a glance
Montana ranks among the 4 jurisdictions with no general sales tax. Montana has no general sales tax; a few resort areas levy limited local resort taxes. The trade-off shows up elsewhere in the tax system — states without a sales tax typically lean more on income or property taxes.
Montana vs. the national average and its neighbors
The average combined state-and-local sales tax across the 50 states is about 6.66%. Montana's 0% puts it 6.7 points below that average — on a $30,000 car, that's $1,998 a typical buyer elsewhere pays that a Montana buyer doesn't. Combined with a graduated income tax topping out at 5.65%, that shapes how Montana funds itself — see the Montana paycheck calculator for the payroll side.
Border shopping is real: here's what the same purchases cost across state lines, at each state's average combined rate.
| State | Combined rate | Tax on $250 | Tax on $30,000 |
|---|---|---|---|
| Montana | 0% | $0.00 | $0 |
| Wyoming | 5.39% | $13.48 | $1,617 |
| Idaho | 6.03% | $15.08 | $1,809 |
| South Dakota | 6.11% | $15.28 | $1,833 |
| North Dakota | 7.09% | $17.73 | $2,127 |
Vehicle purchases are usually taxed by the state where the car is registered, not where it's bought — so the car column shows the rate you'd owe as a resident, not a border-shopping opportunity.
Reading a Montana receipt
In Montana the subtotal and the total match. If a Montana receipt shows a tax line, it's usually a specific excise (lodging, prepared food, rental cars) rather than general sales tax — those are separate taxes with their own rates.
Frequently asked questions
+Does Montana really have no sales tax?
Montana levies no general sales tax. What you see on the shelf is what you pay at the register. Montana has no general sales tax; a few resort areas levy limited local resort taxes. The other no-sales-tax states are Delaware, New Hampshire, Oregon, and Alaska has no state rate but allows local taxes.
+How do I calculate Montana sales tax backwards from a total?
In Montana there's usually nothing to reverse — the receipt total is the price. For purchases shipped from Montana to another state, tax follows the delivery address.
+Do online orders charge Montana sales tax?
Orders delivered to a Montana address carry no sales tax. If you ship to another state, that state's rules apply.
+How much is sales tax on a $30,000 car in Montana?
Nothing in general sales tax — Montana charges no sales tax on vehicles, though title and registration fees still apply.
+How does Montana's sales tax compare nationally?
Montana is one of only a handful of states with no general sales tax, against a 50-state average combined rate of about 6.66%.
+Is the rate the same everywhere in Montana?
Yes — no jurisdiction in Montana charges general sales tax.
Rates as of July 1, 2026, from state revenue departments compiled by the Tax Foundation; local averages are population-weighted. Product exemptions (groceries, clothing, medicine) vary by state. Estimates only — see our terms.