Wyoming Reverse Sales Tax Calculator
Wyoming has a 4% state sales tax, and counties add 1–2% on top. Cheyenne, Casper, Laramie, and Gillette all sit at 6% (4% state + 2% county). Areas without a full county option tax may be lower. The statewide average is 5.36%. Unprepared groceries are exempt from the state portion.
The calculator defaults to Wyoming's 5.36% average. For most major cities, use 6%. Groceries are exempt from the state rate, though local option taxes may apply depending on the county.
Current Wyoming Sales Tax Rates
| Component | Rate |
|---|---|
| State rate | 4.00% |
| Average local rate | 1.36% |
| Average combined rate | 5.36% |
| Location | Combined Rate |
|---|---|
| Cheyenne | 6.00% |
| Casper | 6.00% |
| Laramie | 6.00% |
| Gillette | 6.00% |
What's Taxable in Wyoming
Wyoming exempts most groceries from sales tax at the state level. Unprepared food is not subject to the 4% state rate. Local governments may add their own taxes to groceries. Prescription drugs are also exempt.
Worked Example
Purchase in Cheyenne totaling $53.18 at 6.00%.
$53.18 ÷ 1.0600 = $50.17 (pre-tax price)
$53.18 − $50.17 = $3.01 (tax amount)
That's $3.01 in sales tax on a $50.17 purchase before tax. The main calculator handles this automatically — enter the total and rate and the breakdown appears instantly.
Frequently Asked Questions
Cheyenne (Laramie County) has a combined rate of 6% — Wyoming's 4% state rate plus a 2% county option tax. Most Wyoming counties add 1–2%, so the combined rate across the state typically falls between 5% and 6%.
Wyoming exempts unprepared groceries from the state 4% sales tax. Local governments may still apply their option taxes to food. In counties with a 2% option tax, groceries might still be taxed at 2%. Prescription drugs are exempt.
Divide the total amount paid by (1 + the tax rate as a decimal). For Wyoming's 5.36% rate: divide by 1.0536. The result is the pre-tax price. Subtract that from the total to get the tax amount. The calculator on this page does this automatically.
Wyoming does not have a sales tax holiday.