Wyoming Car Sales Tax Calculator

What you pay in tax when you buy a vehicle in Wyoming, from the statute and the revenue department.

Verified September 21, 2026 · statute and revenue department cross-checked

Vehicle price (USD) Trade-in value (USD) County rate where you live

Buying the car is only half the cost. You still owe an annual registration fee.

What to know about Wyoming

Dealers generally do not collect this tax. You pay the county treasurer yourself within 65 days, and after day 66 interest of 1 percent a month plus a penalty applies. The rate is your county of residence, not where you bought the car. Extended warranties, rebates assigned to the dealer and gap insurance are excluded from the taxable price.

Sources

Statute: Wyo. Stat. § 39-15-104

Wyoming Excise Tax Division, Motor Vehicles
“Affidavit Claim for Sales or Use Tax Exemption on a Motor Vehicle Transferred Within a Family (110)”

Uinta County, Wyoming, Sales Tax Calculation
“The sales tax rate is always the rate charged in the purchaser’s county of residence, as indicated by the address on the title. ... if someone from Uinta County (5%) purchases a vehicle in Denver (7%), the purchaser would pay 5%.”

Last verified: September 21, 2026.

Estimates only. Your dealer or the state issues the final bill, and exemptions can change what you owe. This page does not collect or store anything you enter.