If you’re starting a new company or expanding an existing one, you’ll likely need an EIN (Employer Identification Number). Here’s a complete guide on how to get a business EIN number and why it matters.
What Is an EIN?
An Employer Identification Number (EIN) is a unique nine-digit number issued by the IRS. It’s used to identify your business entity for tax and legal purposes, similar to how a Social Security Number is used for individuals.
Who Needs an EIN?
You need an EIN if you:
- Have employees
- Operate your business as an LLC, partnership, or corporation
- File employment or excise taxes
- Open a business bank account
- Apply for business licenses
How to Get a Business EIN Number for Free
1. Apply Online Through the IRS Website
The fastest way to get an EIN is via the IRS’s official EIN Assistant.
- Available Monday to Friday, 7 a.m. to 10 p.m. ET
- You must complete the application in one session
- You’ll receive your EIN immediately after submission
Note: The online form is only available to businesses with a U.S. mailing address.
2. Apply by Fax or Mail
If you can’t apply online:
- Fax: Complete IRS Form SS-4 and send it to the IRS fax number (usually processed within 4 business days)
- Mail: Mail the completed Form SS-4 to the IRS (processing may take up to 4 weeks)
3. Apply by Phone (International Applicants)
If your business is based outside the U.S., you can call the IRS at 267-941-1099 to apply for an EIN.
What Happens After You Apply?
Once approved, you’ll receive an EIN Confirmation Letter (CP 575). Keep it safe—it’s needed to open business bank accounts, file taxes, and apply for licenses.
Do I Need to Pay for an EIN?
No. The IRS provides EINs for free. Be cautious of third-party sites charging fees unless you’re seeking help with filing or forming your business.
Need Help Applying?
If you’re unsure about paperwork or want a hassle-free process, FormLLC.us can handle EIN registration and LLC formation for you—quickly and accurately.
Final Thoughts
Knowing how to get a business EIN number is essential for any entrepreneur or small business owner. It’s a critical step toward building a compliant and professional business identity.
