
If you’re a foreign individual or entity planning to do business in the United States, obtaining an Employer Identification Number (EIN)—also known as a Federal Employer Identification Number (FEIN)—is often one of the first critical steps. This unique nine-digit number issued by the IRS identifies your business for federal tax purposes. Whether you’re launching a U.S. branch of an international company or forming a new U.S.-based LLC, you’ll likely need an EIN to open a U.S. bank account, file taxes, or hire employees.
But for non-U.S. residents, the application process differs from that of domestic applicants. Here’s what international businesses and individuals need to know.
International Applicants Cannot Apply Online
Unlike U.S.-based applicants, international individuals or entities cannot use the IRS’s online EIN application portal. Instead, you must apply through one of the following methods:
1. Apply by Phone (Recommended)
International applicants can apply for an EIN by calling the IRS directly at +1-267-941-1099 (not a toll-free number). This is often the fastest method. The call center is open Monday through Friday, 6 a.m. to 11 p.m. Eastern Time.
During the call, you’ll provide the required details from Form SS-4, and the IRS agent will assign your EIN over the phone, provided everything is in order. Be prepared for long wait times and ensure the caller is authorized to act on behalf of the business.
2. Apply by Fax
You can fax a completed Form SS-4 to the IRS at:
- +1-304-707-9471 (for applicants without a legal residence or principal place of business in the U.S.)
If your form is filled out correctly, you’ll typically receive your EIN within four business days by return fax.
3. Apply by Mail
Mail your completed Form SS-4 to:
Internal Revenue Service
Attn: EIN Operation
Mail Stop 6273
Ogden, UT 84201-0023
USA
Mail applications can take up to 4–6 weeks, making this the slowest method.
Tips for Completing Form SS-4
- If you do not have a U.S. Social Security Number (SSN) or Individual Taxpayer Identification Number (ITIN), write “Foreign” in the relevant field.
- Ensure your business name and U.S. mailing address (if available) are accurate and legible.
- Sign the form before submission.
With the right preparation, international applicants can secure an EIN and start doing business in the U.S. efficiently—just make sure to choose the application method that best fits your timeline and communication preferences.