What is a tax ID number? It's a unique nine-digit number issued by the Social Security Administration or the IRS to anyone ...

An Individual Taxpayer Identification Number is a nine-digit number the IRS uses to process taxes and administer tax laws. The agency issues them only to certain nonresident and resident aliens, as ...

A Taxpayer Identification Number (TIN) is a unique nine-digit number the Internal Revenue Service uses to identify individual taxpayers. A TIN can come in different varieties, including Social ...

Janet Berry-Johnson, CPA, is a freelance writer with a background in accounting and income tax planning and preparation for individuals and small businesses. Her work has appeared in Business Insider ...

A Tax Identification Number (TIN) is required for all entities to file tax returns. Individuals use their Social Security Number (SSN) as their TIN for personal taxes. Businesses need unique TINs, ...

Each taxpayer in the U.S. needs to have a unique nine-digit number that can identify them to the IRS. Many Americans use their Social Security number, or SSN, to confirm their identity on tax returns ...