On this page
Montana car sales tax at a glance
| Montana | |
|---|---|
| Tax | none (no general sales tax) |
| State rate | None |
| Average with local taxes (2026 (Tax Foundation midyear, July 1)) | 0% |
| Counties and cities add tax | No |
| Trade-in lowers the tax | No state sales tax to reduce |
| Leases | No sales tax on leases |
Checked on the state's official sources on 2026-11-02. Rates change; the state's revenue department has the last word.
How to work out Montana sales tax on a car
Montana has no state sales tax on cars. Montana has no general sales tax, so dealer sales carry no sales tax. Buyers pay title, registration and any county local option fees at the county treasurer.
Trade-ins
Not applicable: no sales tax on vehicle purchases.
Leasing a car in Montana
No sales tax on leases. Montana: no sales tax on leases; registration fees still apply. The lease calculator uses Montana's method when you pick the state.
Dealer doc fees
No cap found.