So, check it out, an Employer Identification Number (EIN), or as some folks call it, a Federal Tax Identification Number (FTIN), is this cool nine-digit number you get from the IRS. They hook you up with it if you’re running a business or some other kind of entity. It’s like a special ID for taxes, just like how the Social Security Number (SSN) works for us regular folks. Pretty neat, huh?
Source: https://www.accountiod.com/business-credit-cards-ein-only/