Sales Tax Calculation

Calculating How Much to Pay in Sales Tax


The amount of sales tax due depends on:
  1. The sales price of the vehicle, and
  2. The applicable sales tax rate.

The vehicle sales price is the cash price of the vehicle including any up charges that increase the vehicle price. Taxable up charges include accessories, document fees, transportation fees, anti-theft devices, etc.

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 the purchase was made out of state, the tax rate will be determined by the purchaser's county residence.

For example, if someone from Uinta County (5%) purchases a vehicle in Denver (7%), the purchaser would pay 5%.

Important: Wyoming law requires that a contract of sale must be presented to pay sales tax when a vehicle is purchased from a dealer. When a vehicle is purchased from an individual, no bill of sale is required.

Calculator (JPG)

Upload Contract Of Sale/Bill of Sale

You may use this link to obtain an amount due for sales tax on your new purchase.  You can upload a PDF or JPEG image, once completed our office will contact you.

Sales Tax Calculator

Resident County of Purchaser:
Taxable Price:

Wyoming Sales Tax must be paid to the County Treasurer within 65 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.

Note: 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.

The taxable sales price is the price of the vehicle less the trade-in allowance (if any) and includes: transportation costs, documentation fees, any vehicle additions, any added dealer profit And does not include: extended warranties, rebates assigned to dealer, gap insurance. Cash down payments are NOT subtracted from the taxable sales price.