Utah car-buying rules
These are the rules the Before the Lot planner uses for Utah, with the source and date for each. They describe the rules and the planner's estimate; they are not legal or tax advice, and the dealer's quote and your state's documents are what count.
Dealer doc fee in Utah
No dollar cap, with rules on how the fee is shown.
No cap; the Motor Vehicle Enforcement Division's FAQ answers 'Is there a limit?' with 'No'. The fee must be listed separately, not labelled as a state fee, and posted on a sign (Utah Admin. Code R877-23V-14).
Sales tax in Utah
- Tax: Sales and use tax.
- State rate used: 4.85%.
- Local add-ons: Varies by location (no single figure fits).
- Dollar cap on the tax: none in the data.
Plus local tax at the dealer's location: 6.35%-8.45% combined. Trade-in and rebates deducted.
Your local rate
Whose local rate applies depends on the sale. Find your exact rate: Utah official lookup (Sales & Use Tax Rates (Rate Look-Up Tool)).
Trade-in tax credit
Yes. Utah takes the trade-in value off the taxed price.
Does a maker's rebate lower the taxed price?
Yes. Not taxed 'whether paid to the buyer or kept by the dealer'.
Cancellation and return rights
No Utah-specific right to cancel or return a dealership purchase is in the planner's data.
There is no federal cooling-off period for buying a car at a dealership; the FTC's door-to-door Cooling-Off Rule excludes dealers with a permanent place of business (16 CFR 429.3(a)). The FTC CARS Rule was vacated by the Fifth Circuit in January 2025 and formally withdrawn effective Feb 12, 2026 (91 FR 6507). No other state with a general used-car cooling-off right was found; NCLC calls California's the first in the nation.
Worked out-the-door example: a $35,000 vehicle
Built with the planner's own out-the-door formula: the tax is the state base rate times the vehicle price plus the doc fee, with no trade-in, rounded to the cent. Local taxes are not included.
| Line | Amount |
|---|---|
| Vehicle price (example) | $35,000 |
| Doc fee (the planner's default, an example amount only; there is no cap) | $450 |
| Sales tax at 4.85% on $35,450 | $1,719.33 |
| Title and registration (the planner's default estimate) | $250 |
| Out-the-door total | $37,419.33 |
Title and registration fees differ by state and vehicle; $250 is a placeholder, not an Utah figure.
Plan a purchase in Utah
Plan a purchase in Utah opens the free planner with Utah already chosen. Nothing is sent to a server; the choice rides in the link's fragment.
These rules feed two steps of the method: set your numbers and let dealers compete. To read a dealer's quote line by line, see reading an out-the-door quote. All states.