A 9-digit number obtained from the IRS by a business with paid employees. If you're a sole proprietorship, your taxpayer ID number is your social security number. One of the first steps you will ...

For instance, the 1040 form that most people use to file their federal income taxes may request your taxpayer identification number or Social Security number. Check Out: What To Do If You Owe Back ...

Your Tax ID Number - sometimes also referred to as a Federal Tax Identification Number, a 95 Number, or EIN Number - is a nine-digit number issued by the IRS to be used by self-employed ...