An EIN Number (additionally called a Tax ID) stands for Employer Identification Number. Most human beings do not forget an EIN Number like a Social Security Number (SSN) for a commercial enterprise. The IRS calls for maximum companies to attain an EIN in an effort to perceive the commercial enterprise for tax purposes. Some advantages of getting your Tax ID / EIN Number include: the ability to open a commercial enterprise financial institution account or line of credit score, to rent employees or to apply for positive enterprise licenses.