As of 2026, getting an EIN in Wyoming costs nothing: the IRS issues your Employer Identification Number directly, and an online application is approved the same day when you qualify.
Wyoming doesn’t issue the number and runs no state income tax behind it, so once you form your Wyoming LLC, the federal EIN does most of the work.
How to Get a Wyoming EIN for Your LLC
A Wyoming EIN is a free federal tax ID from the IRS, issued the same day through the online EIN Assistant when you’re eligible; Wyoming itself never issues it, so for state taxes you register separately with the Department of Revenue and Workforce Services only if your business triggers them.
- Cost: $0 direct from the IRS. Paid “EIN filing” sites charge $150 to $300 for the same free service.
- How: the IRS online EIN Assistant, open Monday to Friday 6 a.m. to 1 a.m. ET, plus weekend hours.
- Form: Form SS-4, only if you fax or mail instead of applying online.
- Who needs it: any Wyoming LLC with employees, more than one member, or a corporate tax election; solo owners usually want one for banking.
- After the EIN: a Wyoming sales tax license through the Department of Revenue on WYIFS and unemployment registration through Workforce Services on WYUI, but no state withholding account.
Does Your Wyoming LLC Need an EIN?
Not every Wyoming LLC must have an EIN, but most need one quickly. A single-member LLC with no employees is a disregarded entity federally, so the IRS doesn’t force the issue.
Hire, add a member, open a bank account, or register for sales tax, though, and it’s the number every institution asks for.
| Business type | EIN required? | Notes |
|---|---|---|
| Single-member LLC, no employees | Not federally required | Disregarded entity; still needed for banking or a sales tax license |
| Single-member LLC with employees | Yes | Payroll and federal employment taxes |
| Multi-member LLC | Yes | Treated as a partnership by default |
| LLC electing S-corp or C-corp | Yes | Needed for the election and corporate returns |
| LLC registering for Wyoming sales tax | Yes in practice | WYIFS asks for your EIN at registration |
Multi-member owners should pair the EIN with a written Wyoming operating agreement, since the default partnership treatment decides how the IRS taxes the LLC until it elects otherwise.
How to Apply for an EIN for a Wyoming LLC
This is the part most owners care about, and it’s free at the source. In Aaron Kra’s experience across 25-plus states, the entity-classification screen is where Wyoming’s out-of-state owners trip, so slow down there.
- Confirm the LLC is approved: an online Wyobiz filing posts almost immediately, while mailed ones lag, so check status first (how long Wyoming formation takes).
- Open the IRS EIN Assistant: start the online application during posted hours; the tool drops your session after 15 minutes of inactivity, so have everything ready first.
- Select the entity type: choose limited liability company, then enter the member count; this screen causes the most refilings.
- Enter the legal name and any trade name: match the Wyoming Secretary of State record exactly.
- Name the responsible party: a real person with a Social Security Number or Individual Taxpayer Identification Number (ITIN), never your registered agent.
- Answer the reason and submit: click continue through the final screens.
- Download the CP 575 right away: the IRS won’t resend this confirmation letter, so save and print it immediately.
What Your Wyoming EIN Confirmation Letter Looks Like
When the IRS approves your Wyoming LLC’s EIN online, the number appears on the CP 575 confirmation letter. Save that letter before you close the session, because banks, vendors, payroll providers, and state tax portals may ask for the legal name and EIN exactly as the IRS issued them.
The CP 575 is a federal IRS letter, not a Wyoming state tax notice. It will not show a WYIFS sales tax account, a WYUI unemployment account, or any separate Wyoming “state EIN.”
- Online approval: your EIN appears right away when the application clears.
- Fax filing: expect about 4 business days if you include a return fax number.
- Mail filing: allow about 4 to 5 weeks for IRS processing.
Sample IRS CP 575 EIN confirmation letter for a Wyoming LLC.
Can’t use the online tool? Fax Form SS-4 to 855-641-6935 (about 4 business days with a return fax number), or mail it to the Cincinnati EIN Operation and allow 4 to 5 weeks. A foreign filer based outside the U.S. can call 267-941-1099, weekdays 6 a.m. to 11 p.m. ET. That line isn’t a general no-SSN hotline, so a domestic applicant without an SSN follows current SS-4 instructions.
Worth flagging for anyone forming several entities: the IRS grants one EIN per responsible party per day, across every channel.
Form the Wyoming LLC first, then apply with the right name.
The EIN is free, but the IRS record should match your approved Wyoming LLC. Northwest can help set up the LLC and registered agent service first, then add EIN support if you want everything handled in one place.
What Wyoming LLC Owners Need Before Applying
Gather these first and you’ll move fast. What matters is matching your legal business name to the state record, since a mismatch is the top reason applications fail.
- Approved legal name: verify it through the Wyoming Secretary of State business search.
- Formation details: the date and record from your Wyobiz confirmation.
- Responsible party: full name plus SSN or ITIN.
- Entity type and reason: new business, hiring, banking, or compliance.
- Business address: your principal place of business.
Is a Wyoming EIN the Same as a Wyoming Tax ID Number?
No, and it isn’t a small thing; this mix-up wastes more time than anything else here. The EIN’s federal; any Wyoming account is separate, from a different agency, and only appears once your activity sets it off.
| Details | Federal EIN | Wyoming accounts |
|---|---|---|
| Issued by | The IRS | Dept of Revenue, Workforce Services, Secretary of State |
| Used for | Federal taxes, payroll, banking, vendor onboarding | Sales/use tax, unemployment insurance, annual reports |
| Who needs it | Most LLCs | Sellers of taxable goods, employers |
| Where to get it | IRS.gov, free | WYIFS, WYUI, Wyobiz |
Every week, someone messages me certain that Wyoming sent them a “state tax ID” they have now misplaced. In most cases, it almost never existed. Wyoming has no state income tax, so there is no hidden Wyoming income-tax number sitting behind your federal EIN. What you may have is the IRS EIN itself, plus a Wyoming sales tax license or unemployment account only if your business activity actually triggered one.
Your EIN comes from the IRS, not Wyoming.
Sales tax and UI accounts appear only when your business needs them.
Quit chasing a number Wyoming never issued, and pin down what you actually owe.
Wyoming Sales Tax and UI Accounts to Set Up After Your EIN
Wyoming’s tax load is genuinely light, but it isn’t none. With no state income tax, there’s no withholding account, so what’s left depends on what the business does. Owners who’d rather delegate can compare Wyoming LLC formation services.
Wyoming Sales Tax License Through the Department of Revenue
Sellers of taxable goods or services register for a sales tax license with the Department of Revenue Excise Tax Division on WYIFS. Wyoming law sets a $60 fee for each new vendor, with narrow exceptions, so the “it’s free” line elsewhere is simply wrong.
The state sales and use tax rate is 4 percent, with local add-ons by county. For remote sellers, the 2026 trigger is gross revenue above $100,000 delivered into Wyoming; the old 200-transaction prong was repealed on July 1, 2024.
Wyoming Unemployment Insurance Through Workforce Services
Employers register with the Wyoming Department of Workforce Services on the WYUI portal through Joint Business Registration, which the agency requires before it can confirm coverage. Your first employee is the trigger.
The Wyoming step that actually burns cash is payroll registration. I always tell owners to complete Joint Business Registration on WYUI before the first report goes in, because Workforce Services expects that order.
Register through WYUI before you hire or run payroll.
File your first unemployment report after the account is set up.
Workers’ Compensation and Annual Filings
Workers’ compensation also runs through DWS, and one WYUI account can cover both unemployment and workers’ compensation filings; extra-hazardous work must be registered before it starts.
Separately, every Wyoming LLC files a Wyoming annual report and pays an annual license tax of $60 or $0.0002 per dollar of in-state assets, whichever is greater. Assets of $300,000 or less stay at the $60 floor, and it’s due the first day of your formation anniversary month, worth tracking next to what a Wyoming LLC costs.
Wyoming EIN Mistakes That Cost LLC Owners Time and Money
Wyoming attracts a lot of remote and foreign owners, which shapes the errors that show up. These are the ones that force a refile or a real bill.
- Listing the registered agent as responsible party: the IRS wants the natural person who controls the LLC, not a service. Name yourself, then keep your Wyoming registered agent for state mail only.
- Budgeting nothing for the sales tax license: it’s a $60 vendor fee, and owners who expect “free” get surprised at registration.
- Trusting the dead 200-transaction rule: that prong vanished in July 2024, so counting transactions misjudges nexus.
- Applying before the LLC is approved: the CP 575 then shows a name Wyobiz never recorded, which banks reject.
- Waiting on a single Wyoming tax ID: there isn’t one, so the wait only stalls your bank account.
How to Recover a Lost Wyoming EIN or Update Your LLC
Lost paperwork happens. If the EIN goes missing, check the original CP 575, a past federal return, or your bank records. If those don’t surface, recover your EIN by asking the IRS Business and Specialty Tax Line for a 147C verification letter, or pull an entity transcript.
Wyoming account numbers live in their own portals, WYIFS for sales tax and WYUI for unemployment, not on that federal letter. You’ll only need a brand-new EIN for structural changes, like a single-member LLC taking on partners; routine address or responsible-party edits use Form 8822-B, while a classification change uses Form 8832.
Wyoming EIN FAQs
Direct answers to what Wyoming owners ask most before and after they apply.
Is a Wyoming EIN the same as a Wyoming tax ID number?
No. The EIN is a federal number from the IRS, while a Wyoming sales tax license or unemployment account is state-issued and separate. You might hold the EIN and never need a state number, or carry several on top of it; one never replaces the other.
Does Wyoming issue EINs?
No. Only the IRS issues EINs, and the Wyoming Secretary of State confirms its Business Division does not. A site that offers to “get your Wyoming EIN” for a fee is reselling the free federal process.
How much is a Wyoming sales tax license?
The official fee is $60 for each new vendor, with limited statutory exceptions, and reinstating a lapsed license costs another $60. Anyone claiming Wyoming licenses are free is working from stale information.
Does Wyoming still use a 200-transaction nexus threshold?
No. Wyoming repealed the transaction-count prong on July 1, 2024. A remote seller now crosses economic nexus only by topping $100,000 in gross revenue delivered into the state in the current or prior calendar year.
Does a Wyoming LLC need a state withholding account?
No. Wyoming has no personal income tax, so there’s no wage withholding registration at all. Employers handle unemployment insurance through WYUI and workers’ compensation instead.
Can a foreign owner get a Wyoming EIN without an SSN?
Often yes, though the route depends on the facts. An international applicant whose business and residence sit outside the U.S. can call the IRS at 267-941-1099, weekdays 6 a.m. to 11 p.m. ET. Others file Form SS-4 and may enter an ITIN as the responsible party, but that party must be a real owner, never the registered agent.
- Wyoming Secretary of State, Business Entity FAQs
- IRS, Get an Employer Identification Number
- IRS, About Form SS-4
- IRS, LLC Filing as a Corporation or Partnership
- Wyoming Department of Revenue, Sales/Use/Lodging Tax Registration
- Wyoming Internet Filing System (WYIFS)
- Wyoming Department of Workforce Services, New Employers
Looking for an overview? See Wyoming LLC Services
Apply for Your Wyoming EIN with Harbor Compliance
Getting an EIN is a key step for your Wyoming LLC. Harbor Compliance helps business owners secure their federal tax ID efficiently, making it easier to open bank accounts, hire employees, manage taxes, and keep business operations moving forward with confidence.
