Is an employer ID number the same as a tax ID number?
Yes, an employer identification number, or EIN, is also known as a taxpayer identification number, or TIN. A sole proprietorship that has no employees and files no excise or pension tax returns and a LLC with a single owner (where the owner will file employment tax returns) are the only businesses that do not need an employer identification number. In these instances, the sole proprietor uses his or her social security number as the taxpayer identification number.
