If you’re starting a business, hiring employees, or forming an LLC, you’ll need to know how to get your EIN number—your Employer Identification Number. This unique 9-digit number is issued by the IRS and is essential for tax and legal purposes.
Here’s everything you need to know.
What Is an EIN?
An EIN (Employer Identification Number) is also known as a Federal Tax Identification Number. It’s used by the IRS to identify your business for:
- Opening a business bank account
- Filing federal taxes
- Hiring employees
- Applying for business licenses
Who Needs an EIN?
You need an EIN if you:
- Form an LLC or corporation
- Hire employees
- Operate a partnership
- File excise, employment, or alcohol/firearms/tobacco tax returns
- Have a trust, estate, or nonprofit organization
How to Get Your EIN Number (Step-by-Step)
1. Determine Eligibility
You must have a business located in the U.S. or its territories and a valid Taxpayer Identification Number (SSN, ITIN, or another EIN) to apply.
2. Apply Online Through the IRS Website
The fastest way to get your EIN is to apply online:
Apply at IRS.gov
- The service is free
- Available Monday–Friday, 7 a.m. to 10 p.m. ET
- You receive your EIN immediately upon completion
3. Apply by Fax or Mail
If you prefer not to apply online:
- Fax: Complete Form SS-4 and fax it to the appropriate IRS number
- Mail: Send Form SS-4 to the IRS address listed on the form instructions
- Phone (for international applicants): Call 267-941-1099 (not toll-free)
How Long Does It Take to Get Your EIN?
- Online: Immediate
- Fax: 4 business days
- Mail: 4–6 weeks
- Phone (International): Immediate during the call
How to Get a Copy of Your EIN Letter
If you’ve lost your EIN confirmation letter:
- Contact the IRS Business & Specialty Tax Line at 800-829-4933
- Ask your bank or accountant (they may have a copy)
- Check your previous tax returns or documents with the EIN listed
Final Thoughts
Understanding how to get your EIN number is a vital step in launching or formalizing your business. It’s free, easy, and can be done online in minutes.
