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What is a tax ID number and how is it used?

What is a tax ID number? It's a unique nine-digit number issued by the Social Security Administration or the IRS to anyone ...
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Employer Identification Number (EIN): A Quick Guide for Small-Business Owners

An EIN, also called a federal identification number, is a unique business tax ID number that you can get online in just a few minutes. Many, or all, of the products featured on this page are from our ...