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Wyoming LLC · Step 5 of 8 · Verified June 2026

Wyoming LLC EIN Number — Step 5 of 8

An EIN is your LLC's federal tax ID — like a Social Security number for your business. You'll need it to open a bank account, hire employees, and file taxes. It's completely free from the IRS, and with an SSN you can get it in minutes. Wyoming attracts a lot of non-US founders, so we cover that path in detail too.

Ahmad Adil Written & verified by Ahmad Adil, LLC School·Updated June 2026
Quick Answer

Get your EIN free directly from the IRS at IRS.gov — never pay a third party for the number itself. With an SSN or ITIN, apply online and get it instantly. Non-US founders without an SSN apply by fax (~4 days) or mail (~4 weeks) using Form SS-4. Apply after your Wyoming LLC is approved.

Step 5 — Fast Facts
Cost
Free at IRS.gov
Online (with SSN)
Instant
Fax (SS-4)
~4 days
Mail (SS-4)
~4 weeks
Form
SS-4
When to apply
After LLC approved
Next step
Step 6 →

What an EIN Is & Who Needs One

An Employer Identification Number (EIN) is a nine-digit federal tax ID the IRS issues to your business. It identifies your LLC on tax filings the way a Social Security number identifies a person. For a Wyoming LLC, you'll use it to open a business bank account, hire employees, and file taxes.

  • Multi-member LLCs must have one — it's required for partnership tax filing.
  • Any LLC with employees must have one — it's needed for payroll taxes.
  • Single-member LLCs with no employees can technically use the owner's SSN, but an EIN is strongly recommended — banks require it and it keeps your SSN private (a nice fit with Wyoming's privacy focus).

Never pay for an EINThe EIN itself is 100% free directly from the IRS. Sites that charge $50–$300 for "EIN filing" are just filling out a free form for you. Apply yourself at IRS.gov, or let your formation service include it.

EIN Application Method Finder

The right way to apply depends on one thing: whether you have a US Social Security Number or ITIN. Answer below to see your fastest route:

EIN Method Finder
Find your fastest free route to an EIN
Do you have a US Social Security Number (SSN) or ITIN?
Wyoming LLC owner applying for a free federal EIN from the IRS

How to Apply, Step by Step

  • Wait until your LLC is approved. Apply only after the Secretary of State has accepted your Articles, so your details match.
  • Online (with SSN/ITIN): use the IRS EIN Assistant, Monday–Friday, and you'll get your number instantly at the end.
  • By fax/mail (Form SS-4): complete Form SS-4 and submit it — about 4 business days by fax, 4 weeks by mail.
  • Save the confirmation letter (CP 575). Your bank will ask for it — keep a copy with your records.
Apply for Your EIN — Free at IRS.govThe official IRS EIN application — never pay a third party for the number
IRS EIN Application

Non-US founders: Wyoming is built for youYou don't need an SSN or ITIN to get an EIN. Complete Form SS-4 — where it asks for the responsible party's SSN/ITIN, foreign applicants without one can write "Foreign" — and submit by fax or mail, or call the IRS international line. Since Wyoming welcomes non-resident owners, a formation service that offers EIN help can handle this for you start to finish.

Ahmad Adil's Take: If you have an SSN, this is the easiest step in the whole process — five minutes on the IRS site and you walk away with your number. Two reminders: never pay anyone for the EIN itself, and wait until your Wyoming LLC is officially approved before applying so the IRS records match. If you're an international founder — and a huge share of Wyoming LLC owners are — don't stress: plenty of non-US owners get EINs by fax every week, and a good formation service will do it for you if you'd rather skip the SS-4.
EIN Help for US & Non-US Founders
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Frequently Asked Questions

Wyoming LLC EIN — FAQ

How much does an EIN cost in Wyoming?
Nothing — an EIN is free directly from the IRS at IRS.gov. There is no state fee and no federal fee for the number. Any service charging for the EIN itself is just completing the free application on your behalf.
How do I get an EIN for my Wyoming LLC?
If you have an SSN or ITIN, apply online at IRS.gov and get your EIN instantly. Without one, complete Form SS-4 and submit by fax (about 4 business days) or mail (about 4 weeks). Apply after your LLC is approved by the Secretary of State.
Can I get an EIN for my Wyoming LLC without an SSN?
Yes. Non-US founders without an SSN or ITIN can still get an EIN by submitting Form SS-4 by fax or mail, or by calling the IRS international line. The online tool requires an SSN/ITIN, but the fax and mail routes do not. This is common for Wyoming, which welcomes non-resident owners.
Does a single-member Wyoming LLC need an EIN?
Not strictly, if you have no employees — you could use your SSN. But it's strongly recommended: banks require an EIN to open a business account, and using an EIN instead of your SSN protects your personal information, which fits Wyoming's privacy-first appeal.
When should I apply for my EIN?
After your Articles of Organization are approved by the Wyoming Secretary of State. Applying once your LLC officially exists ensures the IRS records line up with your state filing and avoids mismatches when you open accounts.
How long does it take to get an EIN?
Online with an SSN/ITIN, it's instant — you get the number at the end of the session. By fax it's about 4 business days, and by mail roughly 4 weeks. For speed, the online method wins whenever you're eligible.
Do I need a separate state tax ID in Wyoming?
For most Wyoming LLCs, your single federal EIN is all you need — Wyoming has no state income tax. If you'll sell taxable goods, you'll register for a sales tax license with the Wyoming Department of Revenue, and if you hire employees you'll handle payroll registrations, both of which use your EIN.
Ahmad Adil, founder of LLC School
About the Author
Ahmad Adil

Ahmad Adil is the founder and CEO of LLC School. The EIN guidance here — that the number is free at IRS.gov, the instant online route with an SSN/ITIN, the fax and mail timelines for Form SS-4, and the options for the many non-US founders who choose Wyoming — reflects current IRS procedures. LLC School updates its guides as IRS processes change.

About Ahmad Adil → Wyoming LLC Overview →
Up Next · Step 6 of 8
File the Annual Report
Wyoming's $60 license tax, due your formation anniversary month each year.
Step 6: Annual Report
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