Wyoming Sales & Use Tax


The Treasurer collects all sales tax due and fees based on place of residence. Wyoming sales tax must be paid to the County Treasurer within 65 days of the date of purchase. After 65 days, additional penalties and interest will be due. If you are calculating tax on a sale that occurred more than 65 days ago, please contact your County Treasurer for the amount of penalties and interest due. The rate you pay when you purchase a vehicle depends on your place of residency when you purchased the vehicle.

Sales Tax Calculator

View the Sales Tax Calculator. This calculator just provides an estimate of sales tax based on the information provided by the user and should be used for informational purposes only. The Treasurer's Office is not responsible for any errors in the information or fees provided by this form.

Taxable Sales Price

The taxable sales price is the price of the vehicle less the gross trade-in allowance (if any) and includes:

  • Transportation costs
  • Documentation fees
  • Any vehicle additions
  • Any dealer profit not including:
    • Extended warranties
    • Rebates assigned to dealer
    • Gap insurance