Montana Car Sales Tax Calculator
This Montana car sales tax calculator estimates the tax and fees on buying a vehicle. Montana has no state sales tax, so there is no state sales tax on a vehicle purchase, though registration and title fees still apply. Enter the vehicle price and your registration fee to see the fees and the total drive-away cost. Registration and title fees are set by the Montana DMV and depend on the vehicle's weight, type and your county, so they are entered by you rather than asserted here. Some states also let you subtract a trade-in before tax, while others tax the full price; the rule is set by the state, so enter the net price if Montana allows a trade-in credit. Use this to budget for a car purchase and to compare the upfront tax across vehicles. The state rate is the official sourced figure; local rates and fees vary by location.
Montana has no state sales tax on vehicles. Only registration and title fees apply.
How Montana car sales tax is calculated
state sales tax = vehicle price x 0% (state rate)
total = vehicle price + state sales tax + registration and title fees
Montana car sales tax: frequently asked questions
How much is sales tax on a car in Montana?
Montana has no state sales tax, so there is no state sales tax on a vehicle purchase. Registration and title fees still apply.
Is the registration fee included?
Registration and title fees are set by the Montana Department of Motor Vehicles and vary by vehicle weight, type and county, so they are a user-editable input here rather than an asserted figure. Enter your DMV's fee for an accurate total.
Does a trade-in reduce the sales tax in Montana?
In many states the taxable amount is the price after a trade-in credit, but some states tax the full price. The rule is set by the Montana Department of Revenue. This calculator applies the rate to the price you enter, so enter the net price if Montana allows a trade-in credit.
Where does the Montana car sales tax rate come from?
The state no-sales-tax status is sourced from the Montana Department of Revenue, verified as at Jun 11, 2026. Local rates and DMV fees come from your county.
Official sources
- Montana state no sales tax confirmation: Montana Department of Revenue, as at Jun 11, 2026.
Reviewed by the CalculatorHub team, edited by James Graham, 26 June 2026. See our methodology. General information, not financial advice. Local sales taxes and DMV registration fees vary by location and are not asserted.