
How to Get an EIN Number: What It Is and How to Apply
An EIN is the nine-digit federal tax identification number the IRS assigns to a business entity, and it is required to open a US business bank account, run payroll and file federal returns. It can be obtained online, by fax, by mail, or by phone for international applicants, and the IRS charges no fee for it. Founders without a US Social Security Number cannot use the online application and must submit Form SS-4 by fax or mail instead.



