Casper Sales Tax Calculator (2026)

The sales tax rate in Casper, Wyoming is 5%. That is made up of the 4% Wyoming state sales tax plus about 1% in local city and county taxes. On a $100 purchase you pay $5.00 in sales tax, for a total of $105.00.

5%Combined rate
4%WY state rate
1%Local add-on

Casper Sales Tax Calculator

For other rates and a UK VAT mode, use the full sales tax calculator.

Sales tax in Casper, Wyoming

When you buy something in Casper, the price at the register includes a combined sales tax of 5%. That figure layers local Casper city and county taxes of about 1% on top of the Wyoming state base rate of 4%. The exact rate can vary slightly by special taxing district within the city, so always confirm the rate shown at checkout for your specific address.

How much sales tax will you pay in Casper?

To work out the tax on any purchase, multiply the price by 5%. A few quick examples for Casper:

Purchase priceSales tax (5%)Total
$20$1.00$21.00
$50$2.50$52.50
$100$5.00$105.00
$500$25.00$525.00
$1,000$50.00$1,050.00

Compare Casper with the rest of the state on the Wyoming sales tax page, or see every state on the sales tax by state hub. To work out your true out-the-door price after a discount, pair this with the discount calculator.

Frequently asked questions

What is the sales tax rate in Casper?

The combined sales tax rate in Casper, WY is 5%, which includes the 4% Wyoming state rate and about 1% in local taxes.

How do I calculate sales tax in Casper?

Multiply the price by 5% (i.e. by 0.0500). For example, a $50 item has $2.50 of sales tax, for a total of $52.50.

How do I remove sales tax from a Casper total?

Divide the tax-inclusive total by 1.0500. The result is the pre-tax price and the remainder is the 5% tax.

Is Casper sales tax the same as the Wyoming state rate?

No. Wyoming charges a 4% state rate, and Casper adds local taxes on top for a 5% combined rate.