Short answer
Utah taxes vehicle sales at 4.85% state plus local add-ons (depends on dealer location). Utah taxes the price after the trade-in is deducted. The trade-in must be part of a single transaction involving only two parties. Utah exempts out-of-state buyers only under specific conditions: Two separate exemptions, both keyed to what happens to the car rather than to the buyer's residency. Exclusive use outside Utah: the vehicle must not be registered in Utah and must either never be used in Utah or be used here only for non-business purposes 30 days or less in a calendar year (for business use, only the time needed to drive it to the border), claimed on form TC-721A. Out-of-Utah delivery: the dealer or a common carrier must physically deliver the vehicle across the state line as an obligation of the sales contract, documented on form TC-757, and TC-721A does not support that one. Non-residency alone is not enough: military personnel stationed in Utah and out-of-state students attending Utah schools are taxable unless they meet the exclusive-use test. Utah credits sales tax legally paid to another state, so the same dollars are not taxed twice. That summary is for a retail purchase from a dealer, and most states apply different rules to leases and private-party sales.
Utah car sales tax quick facts
Last verified August 27, 2026| Sales tax rate on vehicles | 4.85% state plus local add-ons (depends on dealer location)[1] |
| Trade-in credit | Utah taxes the price after the trade-in is deducted. The trade-in must be part of a single transaction involving only two parties.[2] |
| Selling to an out-of-state buyer | Utah exempts out-of-state buyers only under specific conditions: Two separate exemptions, both keyed to what happens to the car rather than to the buyer's residency. Exclusive use outside Utah: the vehicle must not be registered in Utah and must either never be used in Utah or be used here only for non-business purposes 30 days or less in a calendar year (for business use, only the time needed to drive it to the border), claimed on form TC-721A. Out-of-Utah delivery: the dealer or a common carrier must physically deliver the vehicle across the state line as an obligation of the sales contract, documented on form TC-757, and TC-721A does not support that one. Non-residency alone is not enough: military personnel stationed in Utah and out-of-state students attending Utah schools are taxable unless they meet the exclusive-use test.[2] |
| Credit for tax paid to another state | Utah credits sales tax legally paid to another state, so the same dollars are not taxed twice.[2] |
| Dealer doc fee | No statutory cap[3] · taxable[2] |
| Temp tag for the drive home | A Utah dealer may issue a temporary permit to a nonresident who buys here and will register in another state. Permits run 45 days from the day the dealer issues them, and that count includes the issue date, weekends and holidays. The dealer has to file the permit stub and the required fee with MVED within those 45 days or pay a penalty equal to the nonresident permit fee. Extension permits exist but MVED must approve them before the extension is issued. (valid 45 days)[4] |
| Out-of-state buyer registration | Utah registration follows residency, not where the car was bought. A person who has established domicile in Utah for six months or more in a calendar year is a resident and has 60 days from establishing residency to register the vehicle here. Utah also holds commuter reciprocity agreements with Idaho and Wyoming: someone whose primary residence is in one state but who works in the other may keep the vehicle registered in the state of principal residence for the commute. Those agreements cover registration only and waive no taxes or other fees.[2] |
From the desk
Utah combines state and local rates by location and keeps vehicle sales inside the ordinary sales tax system, which makes it refreshingly boring. The interesting deals are the Nevada and Idaho borders, both directions.
Selling to an out-of-state buyer in Utah
Utah exempts out-of-state buyers only under specific conditions: Two separate exemptions, both keyed to what happens to the car rather than to the buyer's residency. Exclusive use outside Utah: the vehicle must not be registered in Utah and must either never be used in Utah or be used here only for non-business purposes 30 days or less in a calendar year (for business use, only the time needed to drive it to the border), claimed on form TC-721A. Out-of-Utah delivery: the dealer or a common carrier must physically deliver the vehicle across the state line as an obligation of the sales contract, documented on form TC-757, and TC-721A does not support that one. Non-residency alone is not enough: military personnel stationed in Utah and out-of-state students attending Utah schools are taxable unless they meet the exclusive-use test.[2]
The form doing the work here is TC-721A (Sales and Use Tax Exemption Affidavit for Exclusive Use Outside of Utah); TC-757 (Affidavit of Out-of-State Delivery) for dealer or common carrier deliveries, completed at delivery. A missing form becomes the dealer's tax bill, not the buyer's.
The desk's job doesn't end at the tax line. Somebody still has to chase the title, the temp tag, and the buyer's home-state registration, and Voltra's title tracking keeps that chase on one screen.
Buying in Utah from out of state
If you live in another state and buy in Utah, the deciding rule is where the vehicle gets registered: your home state's tax applies at registration, and what happens at the Utah sale depends on the row above. Utah credits sales tax legally paid to another state, so the same dollars are not taxed twice.[2]
Registration and temp tags
Utah registration follows residency, not where the car was bought. A person who has established domicile in Utah for six months or more in a calendar year is a resident and has 60 days from establishing residency to register the vehicle here. Utah also holds commuter reciprocity agreements with Idaho and Wyoming: someone whose primary residence is in one state but who works in the other may keep the vehicle registered in the state of principal residence for the commute. Those agreements cover registration only and waive no taxes or other fees.[2] A Utah dealer may issue a temporary permit to a nonresident who buys here and will register in another state. Permits run 45 days from the day the dealer issues them, and that count includes the issue date, weekends and holidays. The dealer has to file the permit stub and the required fee with MVED within those 45 days or pay a penalty equal to the nonresident permit fee. Extension permits exist but MVED must approve them before the extension is issued. Validity: 45 days.[4]
Bordering states
Cross-border deals from Utah most often involve Arizona, Colorado, Idaho, Nevada and Wyoming. The combination decides the outcome, so check both states in the out-of-state checker.
Vehicle-type exceptions
Motor vehicles, aircraft and watercraft are subject to sales and use tax but are exempt from the resort communities tax and the state correctional facility tax, so a car sold in a resort town carries a lower combined rate than other goods sold on the same street. Off-highway vehicles, snowmobiles and trailers get no such break. Separately, vehicles rated 26,001 pounds or more that run under both the International Registration Plan and the International Fuel Tax Agreement can qualify for the authorized carrier exemption on form TC-719, and permanently installed auxiliary equipment goes with it.[2]
Sources
- files.tax.utah.gov/tax/forms/2025/pub-25.pdf · verified 2026-08-27
- files.tax.utah.gov/tax/forms/2025/pub-05.pdf · verified 2026-08-27
- dmv.utah.gov/mved/dealers-overview/sales/ · verified 2026-08-27
- dmv.utah.gov/mved/dealers-overview/temporary-permits/ · verified 2026-08-27