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Sales Tax in Casper, Wyoming in 2025
The combined sales tax rate for Casper, Wyoming is 5.00%-6.00%. Your total sales tax rate is the sum of the Wyoming state tax (4.00%), the Natrona County sales tax 1.00%, the city tax 1.00%. There is no special tax in Casper.
But aren't you tired of tracking sales tax rates manually? You can use Zamp instead to streamline and safeguard your compliance.
We'll walk you through how the sales tax rate is determined for Casper and address some common questions you may have. We'll also cover how to collect, audit, and remit sales tax in Casper.
Plus, we’ll share the best solution that will ensure you are always compliant across the entire sales tax lifecycle.
Disclaimer: Our sales tax data is updated on a quarterly basis.
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Casper Sales Tax Rate 2025
Casper is located in Natrona County in Wyoming, United States, and has a sales tax rate of 5.00%-6.00%. This includes local and state sales tax rates.
Here is the breakdown of the Casper's sales tax:
| Tax Jurisdiction | Sales Tax Rate |
| State Tax | 4.00% |
| County Tax | 1.00% |
| Combined Rate | 5.00%-6.00% |
This rate applies to the following zip codes in Casper:
| District | Zip Codes | Combined Sales Tax Rate |
| Natrona County | 82609, 82601, 82602, 82604, 82605 | 5.00%-6.00% |
How Does the Casper Sales Tax Compare to the Rest of Wyoming?
Casper’s 5.00%-6.00% sales tax rate is 1.00% lower than the highest sales tax rate in Wyoming, which stands at 7.00% in cities like Wilson.
It is 1.00% higher than the lowest sales tax rate in Wyoming, which stands at 4.00% in cities like Big Piney.
To give you a better idea, here’s a comparison of Casper sales tax rates with a few other cities in Wyoming:
| City | Sales Tax Rates |
| Wilson | 7.00% |
| Centennial | 6.00% |
| Casper | 5.00%-6.00% |
| Carpenter | 6.00% |
| Big Piney | 4.00% |
What Creates Sales Tax Nexus in Casper?
Casper follows the same sales tax nexus rules as Wyoming, with no extra exemptions.
Read More: Check out this detailed guide on Sales Tax in Wyoming.
You have sales tax nexus in Casper if you fulfill any of these conditions:
- Physical nexus: Businesses that operate a physical storefront and sell tangible personal property.
- Economic nexus: Remote sellers with more than $100,000 in gross sales in Wyoming during the current or previous calendar year.
Learn more about sales tax nexus and when you’re required to collect sales tax.
What Products Are Exempt from Casper Sales Tax?
Casper applies the same sales tax rules as Wyoming's.
The following items are exempt from sales tax in Casper:
- Sales of livestock and feed used for raising livestock or poultry for sale
- Sales of seeds, roots, bulbs, young plants, and fertilizers applied to land for growing products intended for sale are exempt.
- Sales of power or fuel used directly in manufacturing, processing, or agricultural operations by businesses engaged in those activities are exempt.
- Intrastate transportation of sick, injured, or deceased individuals by a public utility or other provider using an ambulance.
- Sales of some medicines sold under a prescription, including oxygen, prosthetic devices, and hearing aid.
Who Needs a Sales Permit in Casper?
If your business sells items covered by an imposition statute (law that defines which sales must be taxed) in Casper, you must register for a Wyoming sales tax license and collect the applicable tax.
How to File and Pay Sales Tax in Casper
You can file Casper sales tax returns using the these methods:
- Automated: Let Zamp handle your Wyoming sales tax filing and remittance so you won’t have to deal with sales tax returns ever again.
- File online: Pay online at the Wyoming Internet Filing System Website.
