What Is an EIN?
An Employer Identification Number (also called a Federal Tax Identification Number) is a 9-digit number assigned by the IRS to identify your business for tax purposes.
It’s similar to a Social Security number—but for your business.
Do You Need an EIN?
You need an EIN if:
- You have employees
- You operate as a corporation, partnership, or multi-member LLC
- You file employment, excise, or alcohol/firearms/tobacco taxes
- You open a business bank account or apply for business credit
- You form a trust, estate, or nonprofit organization
How Do I Get an EIN Number for My Business?
1. Apply Online (Fastest Method)
- Go to the official IRS EIN Assistant.
- The online application is available Monday to Friday, 7 a.m. to 10 p.m. EST.
- You must complete the application in one session.
- You’ll receive your EIN immediately after approval.
You must have a valid Taxpayer Identification Number (SSN, ITIN, or another EIN) to apply.
2. Apply by Fax
- Complete Form SS-4.
- Fax it to:
- 855-641-6935 (if you’re in the U.S.)
- You’ll get your EIN in about 4 business days if you include a return fax number.
3. Apply by Mail
- Mail Form SS-4 to:
Internal Revenue Service
Attn: EIN Operation
Cincinnati, OH 45999 - Allow 4–5 weeks for processing.
4. Apply by Phone (For International Applicants)
- Call the IRS at 267-941-1099 (not toll-free).
- Available for entities with no legal residence or principal office in the U.S.
Is There a Fee to Get an EIN?
No. Getting an EIN is completely free when you apply directly through the IRS.
Beware of third-party services that charge a fee to apply on your behalf—they’re unnecessary unless you want help with paperwork or filing.
Final Thoughts
If you’re wondering how to get an EIN number for your business, the easiest and fastest option is applying online through the IRS. It’s free, takes just minutes, and gives you immediate access to your EIN.
