Montana Out-the-Door Price Calculator (2026)
Out-the-door price so far
$30,229
Still to add: doc fee.
- Selling price
- $30,000.00
- Tax
- $0.00
- Doc fee
- Not added
- Title
- $12.00
- Registration
- $217.00
- Out-the-door price so far
- $30,229
Title and registration use the lowest published amounts. Yours may be higher.
A $30,000 car in Montana comes to about $30,229 out the door, before the dealer's doc fee, which varies. Montana sets no cap on dealer doc fees, so compare them between dealers.
By Matt Rum. Checked against state sources on .
Fees to know about in Montana
- The annual registration fee for a light vehicle 4 years old or newer is $217, and it drops to $87 and then $28 as the vehicle ages.
- Counties may add a voter-approved local option vehicle tax of up to 0.7% of the statutory value, or a flat fee, payable with registration.
Montana dealer and government fees
- Dealer doc fee
- No legal cap
- Doc fee taxed
- No
- Title fee
- $12.00 ($12 for a light vehicle until June 30, 2028 (MCA 61-3-203); $7 from July 1, 2028.)
- Registration
- Annual fee by vehicle age for light vehicles: $217 at 4 years or less, $87 at 5 to 10 years, $28 at 11 years or more; add $825 if MSRP exceeds $150,000 and age is 10 years or less. A county local option tax up to 0.7% of statutory value or a flat fee may be added.
How Montana taxes trade-ins and rebates is on the Montana car sales tax page.
A $30,000 car in Montana, line by line
Tax and fees we can price add $229 to a $30,000 new car, or 0.8% on top of the price.
| Line item | No trade-in | $10,000 trade-in, $4,000 still owed |
|---|---|---|
| Car price | $30,000 | $30,000 |
| Tax | $0 | $0 |
| Doc fee | Not included | Not included |
| Title | $12 | $12 |
| Registration | From $217 | From $217 |
| Out-the-door price so far | $30,229 | $30,229 |
| Trade-in equity Trade-in value minus the loan still owed | — | −$6,000 |
| Balance after trade-in so far | $30,229 | $24,229 |
Amounts are rounded to the dollar, so lines may not add up exactly. The out-the-door price is what the car costs with tax and fees; the balance is what is left to pay or finance once your trade-in is settled. Anything marked not included has no single published amount, so add it from your dealer's offer sheet.
With sales tax, title and registration on a $30,000 new car, Montana ranks 2nd of 34, from lowest cost to highest. Compare every state.
What to check on your dealer's offer sheet
- Montana sets no dollar cap on doc fees, so ask each dealer for theirs and compare.
- Tax should not be charged on the doc fee.
- We list a title fee of $12.00 for a standard dealer sale. If yours differs, ask the dealer which state charge it covers.
- The registration varies, but expect at least $217.00 for a newer car.
Doc fee limits in nearby states
- Idaho
- No legal cap
- Montana
- No legal cap
- North Dakota
- No legal cap
- South Dakota
- No legal cap
- Wyoming
- No legal cap
Montana out-the-door price: common questions
Is there a limit on dealer doc fees in Montana?
No. Montana sets no dollar cap on dealer documentation fees, so they vary from dealer to dealer. Ask for the doc fee in writing and compare it between dealers.
What is added to the price of a car in Montana?
On a $30,000 car bought from a dealer: sales tax of $0, the dealer's doc fee, title from $12 and registration from $217. Any other dealer charges come on top.
How does a trade-in with a loan on it change what you pay in Montana?
On a $30,000 car the out-the-door price is about $30,229, before any fees we cannot price. A $10,000 trade-in with $4,000 still owed gives you $6,000 of trade-in equity, which comes off what is left to pay: about $24,229. Montana gives no tax break for this trade-in, so the out-the-door price stays the same.
How we calculate this
Out-the-door price = selling price + tax + doc fee + title + registration + other fees − rebate. Trade-in equity = trade-in value − loan still owed on it. Balance after trade-in = out-the-door price − trade-in equity. Tax follows Montana's rules for trade-ins, rebates and doc fees. Where a fee varies, we start from the lowest published amount. An empty fee field counts as $0, and the calculator lists it as still to add.
The full method is on our methodology page.
Sources
- revenue.mt.gov (No state sales tax, Trade-in, Manufacturer rebate, Doc fee taxed), checked Nov 5, 2026
- archive.legmt.gov (Local tax), checked Nov 6, 2026
- carwhere.com (Dealer doc fee; secondary source), checked Nov 5, 2026
- mca.legmt.gov (Title fee), checked Nov 5, 2026
- mca.legmt.gov (Registration), checked Nov 5, 2026