Legal-Ease: Do I need a tax/employer identification number?

Similar to social security numbers, the government needs to be able to identify various businesses and relationships, largely because of tax implications. Therefore, when a new business is started, it’s common to secure a tax/employer identification number, which is the non-human being equivalent to an SSN. 

Commonly these numbers are referred to as EINs, employer identification numbers. The IRS requires that most businesses with more than one owner have an EIN.