A tax identification number is a unique nine-digit number issued by the Social Security Administration or the IRS to anyone who pays taxes.

A tax identification number (TIN) is for tax returns and other tax transactions. Social Security numbers are common TINs, as are the ITIN, EIN, ATIN and PTIN.

The IRS uses more than one type of tax identification number. The type of taxpayer ID number you need often reflects your reason for filing a tax return. Find out which numbers you may require and ...

An Employer Identification Number, or EIN, is a unique nine-digit number assigned to a business by the IRS. This number helps ...

Individual Taxpayer Identification Number (ITIN). To apply for an Individual Taxpayer Identification Number (ITIN), you’ll need to submit form W-7 to the IRS.

A tax identification number (TIN) covers two types of federal identification numbers: an EIN and a Social Security number (SSN). However, states also issue tax ID numbers.

An employer identification number, or EIN, is a nine-digit number assigned to your company by the IRS. You’ll use it when filing your business's income tax return or payroll tax return.

Individual Taxpayer Identification Numbers for F-1 and J-1 Students. An Individual Taxpayer Identification Number (ITIN) is a tax processing number issued by the Internal Revenue Service (IRS), which ...

A taxpayer identification number (TIN) is a number issued by the IRS that identifies a business or individual for tax-related purposes. Two types of TINs are EINs and Social Security numbers.