What Is an EIN Number?
An Employer Identification Number (EIN) is a unique nine-digit number issued by the Internal Revenue Service (IRS). It identifies your business for federal tax purposes, similar to how a Social Security Number identifies an individual.
Why You Need an EIN Number
An EIN is required for:
- Opening a business bank account
- Hiring employees
- Filing federal and state taxes
- Applying for business licenses
- Forming an LLC, Corporation, or Partnership
How to Get EIN Number – Step-by-Step Guide
1. Apply Online Through the IRS Website
- Go to the official IRS EIN application page:
irs.gov EIN Assistant - Fill out Form SS-4 digitally
- Submit and receive your EIN instantly
This is the fastest and most recommended method. Available only to entities with a U.S. address.
2. Apply by Fax
- Fill out IRS Form SS-4
- Fax to: 855-641-6935 (U.S.) or 304-707-9471 (International)
- Receive EIN in about 4–7 business days
3. Apply by Mail
- Send completed Form SS-4 to:
Internal Revenue Service
Attn: EIN Operation
Cincinnati, OH 45999 - Processing takes 4–6 weeks
4. Apply by Phone (For Foreign Applicants)
- Call the IRS at +1-267-941-1099
- Hours: Mon–Fri, 6 AM to 11 PM (Eastern Time)
- Provide your answers verbally based on Form SS-4
This is the best method if you do not have a Social Security Number (SSN) or Individual Taxpayer Identification Number (ITIN).
Documents Required to Get EIN Number
- Legal name of your business
- Name and SSN/ITIN of responsible party
- Type of business entity
- U.S. mailing address
- Reason for EIN application
Is There a Cost to Get an EIN?
No, applying for an EIN through the IRS is completely free. Avoid third-party websites charging fees for EIN registration unless you’re using professional services for business setup.
Final Thoughts
Understanding how to get EIN number is crucial when launching a U.S. business. Whether you’re a U.S. resident or a foreign founder, the process is straightforward if you follow the right steps.
