Determine whether you need an EIN
Gather your business legal name, address, and responsible party information
Decide your business structure
Apply online through the IRS EIN Assistant if eligible
Apply by fax using IRS Form SS-4
Apply by mail using IRS Form SS-4
Apply by phone if you are an international applicant
Submit the application with accurate information
Receive and save your EIN confirmation letter
Use the EIN for tax filings, banking, payroll, and business registrations