Rock Springs · Sweetwater County
Rock Springs, Wyoming Business License and LLC Setup
Rock Springs requires a Business License Application filed with and approved by the City Clerk's Office whenever someone advertises or represents that they conduct business in the city, or holds a government license showing they are in business there. The fee is $75 per calendar year for all businesses other than contractor registrations, and it is not prorated.
Last verified: November 10, 2026, against official Wyoming sources.
City
Rock Springs
County
Sweetwater County
Sales tax
6%
Licensing contact
307-352-1500
Heads up: we are an independent company that prepares and submits Wyoming filings for owners. We are not the Wyoming Secretary of State and we do not give legal advice. Every state charge passes through at the exact amount billed, shown separately from our service fee.
Heads up: we are an independent company that prepares and submits Wyoming filings for owners. We are not the Wyoming Secretary of State and we do not give legal advice. Every state charge passes through at the exact amount billed, shown separately from our service fee.
Rock Springs business licenses and fees
| Rock Springs rule | Detail |
|---|---|
| Business license fee | $75 per calendar year, not prorated |
| Home-based business | Also file a Home Occupation Application |
| More than one location | A separate license for each branch or establishment |
| Religious, charitable, philanthropic or educational organizations | Exempt |
| Mobile vendors (food trucks, mobile salons, pet groomers) | Business license plus an approved Mobile Vendor Permit |
| Mobile vendor paperwork | Delivered in person or mailed to Planning and Zoning, 212 D Street; electronic copies not accepted |
What to know before you open in Rock Springs
Because the fee is not prorated, a business that opens in November pays the same $75 as one that opens in January. If your LLC is forming late in the year, ask the City Clerk whether to license for the current year or the next before you start advertising.
The trigger is broad: advertising on social media, signs, cards or in newspapers counts as representing that you conduct business. Set up the license before the ads, not after.
Rock Springs is in Sweetwater County, where the sales rate is 6 percent and lodging totals 13 percent. The county seat and County Clerk are in Green River.
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Heads up: we are an independent company that prepares and submits Wyoming filings for owners. We are not the Wyoming Secretary of State and we do not give legal advice. Every state charge passes through at the exact amount billed, shown separately from our service fee.
Rock Springs licensing contact
| Detail | Rock Springs |
|---|---|
| Office | City Clerk's Office |
| Address | 212 D Street, Rock Springs, WY 82901 |
| Phone | 307-352-1500 |
| County | Sweetwater County (sales tax 6%) |
Steps to open a business in Rock Springs
- Form the LLC or corporation (we file it).
- Get the EIN.
- File the Business License Application with the City Clerk and pay $75.
- Add a Home Occupation Application if you work from home.
- Mobile vendors also file a Mobile Vendor Permit with Planning and Zoning.
Worked example: a mobile pet grooming van based in Rock Springs
| Line | Amount |
|---|---|
| Corp USA Starter package | $149 |
| Wyoming state filing fee | $100 |
| Day-one formation total | $249 |
| Sales tax on $1,000 of taxable sales in Sweetwater County | $60 |
Statewide rules that apply in every Wyoming county
- Your LLC or corporation is filed with the Wyoming Secretary of State, not the county. The state fee is $100 for Articles of Organization or Articles of Incorporation.
- Trade names are registered with the Secretary of State under W.S. 40-2-101 through 40-2-111 for $100, not with a county clerk.
- Retail liquor sales are licensed by incorporated cities and towns inside their limits and by counties outside them (W.S. 12-4-101).
- Business personal property is listed with the county assessor each year by March 1; a written request by February 15 extends the date to April 1 (W.S. 39-13-107).
- The annual report and license tax ($60 minimum) are due on or before the first day of your company's anniversary month every year.
- Every Wyoming company keeps a registered agent at a Wyoming street address. Ours is $199 per year.
Frequently asked questions
How much is a Rock Springs business license?
$75 per calendar year for all businesses other than contractor registrations, not prorated, per the City of Rock Springs.
Do I need a Rock Springs license to run a business from home?
Yes. A home-based business files the Business License Application and a Home Occupation Application.
Ready when you are
Heads up: we are an independent company that prepares and submits Wyoming filings for owners. We are not the Wyoming Secretary of State and we do not give legal advice. Every state charge passes through at the exact amount billed, shown separately from our service fee.
Heads up: we are an independent company that prepares and submits Wyoming filings for owners. We are not the Wyoming Secretary of State and we do not give legal advice. Every state charge passes through at the exact amount billed, shown separately from our service fee.