Natrona County · county seat Casper
Start an LLC in Natrona County, Wyoming
To start an LLC in Natrona County, Wyoming, you file Articles of Organization with the Wyoming Secretary of State for $100; the county does not handle it. Natrona County's sales tax is 5 percent and its County Clerk is in Casper. Our Starter package is $149 plus the state fee.
Last verified: November 10, 2026, against official Wyoming sources.
County seat
Casper
Sales and use tax
5%
Lodging total (county)
12%
County Clerk
307-235-9217
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.
Natrona County notes for business owners
Natrona County is county number 1 on the Department of Revenue chart, and its rates are 5 percent on sales and 12 percent on lodging. An HVAC company that repairs equipment should read W.S. 39-15-103(a)(i)(J), which taxes services performed to repair tangible personal property; installing equipment into a building can be treated differently, so ask the taxability desk which of your jobs are which.
Hiring changes the paperwork more than forming does. Before the first paycheck, the LLC needs its EIN, and Wyoming employers register for unemployment insurance and workers' compensation with the Department of Workforce Services. Form the LLC and get the EIN first so every registration uses the same legal name.
The Natrona County Clerk is in Room 154 at 200 North Center Street in Casper. The City of Casper handles city licenses separately at City Hall on North David Street.
Official sourceNatrona County Clerk: address and contact
The Secretary of State's county clerk list places the Natrona County Clerk in Casper. Call ahead before a visit to confirm hours.
| Detail | Natrona County |
|---|---|
| Office | Natrona County Clerk |
| Address | 200 North Center Street, Room 154, Casper, WY 82601-0863 |
| Phone | 307-235-9217 |
| Website | www.natronacounty-wy.gov |
| County seat | Casper |
| Department of Revenue county number | 1 |
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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.
Natrona County sales and use tax rate
On the Department of Revenue chart effective October 1, 2026, Natrona County (county number 1) charges 5 percent on taxable sales. On a $1,000 taxable sale, that is $50 of sales tax.
| Component | Rate |
|---|---|
| State sales and use tax | 4% |
| General purpose county option | 1% |
| Natrona County total | 5% |
Lodging tax in Natrona County
One lodging rate applies across Natrona County:
- Natrona County: 12 percent in all (5 percent sales and use tax, 5 percent statewide lodging and 2 percent local lodging).
| Locality | Local lodging | Lodging plus sales total |
|---|---|---|
| Natrona County | 2% | 12% |
Worked example: an HVAC service company in Casper with two trucks and a plan to hire
Entity: Wyoming LLC (W.S. 17-29). The company is formed once with the Secretary of State and can then operate anywhere in Natrona County.
| Line | Amount |
|---|---|
| Corp USA Starter package | $149 |
| Wyoming state filing fee (Articles of Organization) | $100 |
| Day-one total | $249 |
| Sales tax you collect on $1,000 of taxable sales in Natrona County | $50 |
| First annual report license tax (most small companies) | $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
What county code is Natrona on the sales tax chart?
County number 1, with a 5 percent sales and use rate and 12 percent total lodging rate effective October 1, 2026.
What should a Casper HVAC company set up before hiring?
The LLC, then its EIN, then employer registrations with the Department of Workforce Services, all under the same legal name.
What is the sales tax rate in Natrona County, Wyoming?
5 percent on the Department of Revenue chart effective October 1, 2026.
Where is the Natrona County Clerk's office?
200 North Center Street, Room 154, Casper, WY 82601-0863. Phone 307-235-9217.
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.