Contact the Internal Revenue Service to apply for an Employee Identification Number (EIN). Apply online, by mail, fax or phone. Business owners who apply over the phone should be prepared to answer the same questions included on the IRS Form SS-4, Application for an Employer Identification Number.
- Choose an EIN application filing method
Download IRS Form SS-4, Application for an Employer Identification Number from the IRS website to apply for an EIN by mail, fax or phone. Complete the online application to apply through the IRS website. Business owners who apply online should receive an EIN immediately after sending the application. Applications submitted by mail, fax or phone may take several days to process.
- Fill out online application or Form SS-4
Answer all the questions on the online application or Form SS-4. Failure to answer all questions may delay the application process. Send Form SS-4 by mail to the designated IRS centers listed on the organization's website. Business owners can fax the form to state specific fax numbers listed on the IRS website.
- Keep the EIN confirmation letter with tax documentation
File the EIN confirmation letter with other tax documents. Use this number to identify the business on tax paperwork, business loan applications and other business documents.