Wyoming keeps sales tax relatively simple: a 4% statewide base plus optional taxes that counties can add by voter approval. This calculator applies the correct combined state-plus-county rate to your purchase and, because Wyoming exempts groceries, lets you toggle the food exemption so unprepared food is taxed at zero.
How it works
The tax is a straightforward percentage of the pre-tax price:
sales tax = price × combined rate
total = price + sales tax
The combined rate is built from two parts:
- State base — 4%. Applies everywhere in Wyoming.
- County optional taxes. Counties may add a general-purpose tax and specific-purpose taxes, pushing the combined rate up to roughly 5–6%.
If you mark the item as groceries (unprepared food), the calculator applies Wyoming’s exemption and charges no sales tax, since unprepared food is exempt statewide.
Notes and example
A $200 taxable purchase in a county with a 6% combined rate incurs $12.00 in sales tax for a $212.00 total. The same $200 spent on groceries is exempt — $0.00 tax. Because Wyoming sales tax is destination-based, the rate that applies is the one at the location where you take possession of the goods, which for in-store buying is the store’s county. County optional rates change as voters approve or sunset levies, so verify the current rate for large purchases.