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No local vehicle tax in MT; state rate is the full tax. Source: Tax Foundation, State and Local Sales Tax Rates as of January 1, 2026.
No sales tax; registration fees apply. Doc fees, rebates and add-ons may or may not be taxable depending on the state; not modeled.
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Montana car sales tax, at a glance: 0% state tax on vehicle purchases. No sales tax; registration fees apply. Trade-in credit: n/a (no state sales tax). A $30,000 car owes about $0 in state tax.
Base sales tax: Tax Foundation, Facts & Figures 2026, Table 18 (State & Local Sales Tax Rates), as of January 1, 2026. Vehicle rules: Best-effort, checked October 12, 2026.
| Vehicle price | State tax, no trade | With $10,000 trade-in |
|---|---|---|
| $15,000 | $0 | $0 |
| $20,000 | $0 | $0 |
| $25,000 | $0 | $0 |
| $30,000 | $0 | $0 |
| $40,000 | $0 | $0 |
| $50,000 | $0 | $0 |
| $60,000 | $0 | $0 |
State-level tax only; add your county or city rate in the calculator above.
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0% at the state level. No sales tax; registration fees apply. Local taxes may add. On a $30,000 car with no trade-in that's about $0 in state tax.
Montana has no state sales tax on vehicles, so a trade-in credit doesn't apply. (Best-effort; verify with the state DMV or revenue department.)
Montana's statewide general sales tax is 0% (Tax Foundation, Facts & Figures 2026, Table 18 (State & Local Sales Tax Rates), as of January 1, 2026); the rate applied to vehicles is 0%.
No. No state or local sales tax on vehicles (registration fees apply). (Tax Foundation, State and Local Sales Tax Rates as of January 1, 2026).
No. Those vary by dealer, county, vehicle weight and value. The auto loan calculator for this state lets you add a doc fee and title/registration.
No. Estimates from best-effort state rules, not tax or financial advice; confirm with your state agency or dealer.
Estimates, not financial advice. Taxes, insurance, PMI and fees vary by lender, county and city; confirm with your lender, dealer and state agency before acting.