<Li> an Employer Identification Number (EIN), also known as a FEIN (Federal Employer Identification Number) </Li> <Li> an Adoption Taxpayer Identification Number, used as a temporary number for a child for whom the adopting parents cannot obtain an SSN </Li> <Li> a Preparer Tax Identification Number, used by paid preparers of U.S. tax returns </Li> <P> SSNs are used by individuals who have (or had) the right to work in the United States . </P>

Where do you find your tax identification number