Taxpayer identification numbers (TIN) | Internal Revenue Service
A Taxpayer Identification Number (TIN) is an identification number used by the Internal Revenue Service (IRS) in the administration of tax laws. It is issued either by the Social Security Administration (SSA) …
Get federal and state tax ID numbers | U.S. Small Business ...
Jun 6, 2025 · You can apply and receive an EIN immediately using the IRS assistance tool. It will guide you through questions and ask for your name, social security number or taxpayer ID number, and …
Taxpayer Identification Number: Definition, How to Get One ...
What is a tax ID number? A tax identification number, sometimes also called a "TIN number," is a unique nine-digit number that identifies you to the IRS.
What Is a Tax Identification Number (TIN)? - Investopedia
May 10, 2025 · Tax filers must include their TIN on tax-related documents and when claiming benefits. For most individuals, their TIN is their Social Security number (SSN). A foreign person who doesn't …
How to Get a US Taxpayer ID Number: SSN, ITIN, EIN & More
Jul 23, 2025 · Confused about which US taxpayer ID number you need — SSN, ITIN, EIN, or something else? This guide explains each type, who qualifies, when it's required, and how to apply.
Taxpayer Identification Number - Wikipedia
Taxpayer Identification Number A Taxpayer Identification Number (TIN) is an identifying number used for tax purposes in the United States and in other countries under the Common Reporting Standard. …
What Is a Tax ID Number and How Is It Used? - MSN
What Is a Tax ID Number and How Is It Used? A tax identification number (TIN) is unique nine-digit number issued to anyone who pays personal or business taxes. You can get this number from the...