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 ...

A tax identification number (TIN) is a unique nine-digit number issued by the Social Security Administration or the Internal Revenue Service to anyone who pays taxes (personal or business). Your TIN ...

Ever tried filing taxes, opening a U.S. bank account, or applying for a loan and hit a wall because you don’t have a Social Security Number? That’s where a taxpayer identification number (or TIN) can ...

If you live or work in the United States, the federal government has your number — but which kind depends on your residency status. If you live or work in the U.S., you’ll need either a Social ...

Employee's Withholding Certificate – used by employees to indicate federal tax withholding preferences. Additional instructions posted on the Manage Your Taxes and Tax Elections. Request for Taxpayer ...

With last season just wrapping up—and the 2025 tax season around the corner—the IRS is reminding tax pros that it’s an excellent time to renew their Preparer Tax Identification Number (PTIN). Even ...