Wyoming Car Sales Tax Calculator (2026)

• Wyoming charges a 4 percent state sales tax, and county option taxes bring the total to between 4 percent and 7 percent, or 9 percent in two resort districts.
• The taxable sales price is net of the gross trade-in allowance and includes documentation fees.

Sales and Use Tax

4%In effect since Oct 1, 2026

Local tax

0% to 5%In effect since Oct 1, 2026

Trade-in

Full credit: reduces the taxable price

Manufacturer rebate

Not taxed: the rebate lowers the taxable price

Figured with Wyoming's rules at the lowest local rate, 0%.

• Used car, no trade-in$720

  $18,000 price. Taxed on $18,000.

• New car with a trade-in$1,000

  $35,000 price, $10,000 trade-in. Taxed on $25,000. The trade-in saves $400.

• New car with a trade-in and a rebate$1,120

  $45,000 price, $15,000 trade-in, $2,000 rebate. Taxed on $28,000. The trade-in saves $600. The rebate saves $80.

These examples treat the agreed price as the taxable price. Where a state uses a book value instead, the tax can differ.

The calculator covers a car bought from a dealer. These rules apply to other ways of buying or bringing a car to Wyoming.

Buying from a private seller

When a car is not bought from a dealer, the buyer declares the sales price on an affidavit furnished by the Department of Revenue, and the county treasurer collects the sales tax on that declared price before the car is first registered in Wyoming. (wyoleg.gov, checked Nov 10, 2026)

A car received as a gift

A car sold or given to an immediate family member (parent, child, spouse, sibling, stepparent, stepchild, stepsibling, grandparent or grandchild) is exempt from sales tax if the giver paid sales or use tax when acquiring it. Any other gifted car is taxed on its fair market value at the time of the gift, collected from the recipient before first registration. (wyoleg.gov, checked Nov 10, 2026)

Moving to Wyoming with your car

Wyoming sales or use tax is not collected on a car that was previously registered in another state by the same owner while a nonresident. (wyoleg.gov, checked Nov 10, 2026)

Buying outside Wyoming

Sales tax legally imposed and paid to another state on a purchase is credited against the Wyoming use tax owed on it, up to the amount of the Wyoming use tax. The state may require written proof of the sales tax paid. (wyoleg.gov, checked Nov 10, 2026)

Active-duty military

A passenger car owned by a full-time member of the U.S. armed forces, including reserves and national guard, does not need Wyoming registration while a registration from another state that was in effect when it entered Wyoming stays valid. Members deployed outside the continental U.S. for 90 days or more whose Wyoming registration expires during deployment may register within 14 days after returning, with no penalty. (wyoleg.gov, checked Nov 10, 2026)

Deadline to pay

Sales or use tax on a car must be paid to the county treasurer within 65 days after the date of sale, or for a car brought into Wyoming, within 65 days after it was brought in if the owner proves that date by affidavit. (wyoleg.gov, checked Nov 10, 2026)

Paying late

Tax paid after the 65th day accrues interest of 1% per month or part of a month, plus a $25 civil fee through the 75th day. From the 76th day the fee is $25 or 10% of the tax due, whichever is greater. (wyoleg.gov, checked Nov 10, 2026)

Wyoming is tied for 9th lowest of all 50 states and the District of Columbia for tax on a $30,000 car, at its lowest local rate. See all states.

Tax on a $30,000 car before trade-in, in nearby states. You generally pay tax based on where you register the car.

• Montana$0
• Colorado$870 – $3,360
• Wyoming$1,200 – $2,700
• South Dakota$1,200
• Nebraska$1,650 – $2,250
• Idaho$1,800
• Utah$1,905 – $2,535

• All car calculators
• Sales tax calculators by state
• Car sales tax by state
• Trade-in tax credit by state
• Car cost by state
• Wyoming out-the-door price
• Auto loan calculator

• Colorado car sales tax
• Idaho car sales tax
• Montana car sales tax
• Nebraska car sales tax
• South Dakota car sales tax
• Utah car sales tax