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EIN: what is it?

The nine-digit number the IRS gives a business, used for federal taxes, hiring and banking.

Answered by the Ask About LLC editorial team ·

The short version

Also known as
Employer Identification Number, or federal tax ID
Look at these next
Member as well as Operating agreement as well as Articles of organization

Why should I care?

You can apply with the IRS directly at no charge, or pay a service to do it.

Where will I run into it?

It shows up here: Forming an LLC: your state's answers, Registered agent rules: your state's answers, Taking an LLC to another state: your state's answers.