TIN

Business & Finance abbreviation · Tax

TIN
Stands forTaxpayer identification number
CategoriesBusiness & Finance

TIN stands for Taxpayer identification number, a tax abbreviation.

General US term for any number the IRS uses to identify a taxpayer, including Social Security numbers, Employer Identification Numbers, Individual Taxpayer Identification Numbers and Preparer Tax Identification Numbers. Forms such as the W-9 ask for a TIN without specifying which type.

Example: Enter the payee's TIN, either an SSN or EIN, in the box on the left.

Usage notes

Outside the US, TIN is the generic label for national tax IDs used in international reporting: the UK uses the UTR and National Insurance number, Australia the TFN and India the PAN. The adoption taxpayer identification number (ATIN) is a rarely seen fifth US type.

More tax abbreviations

  • SIT – State income tax
  • SS-4 – Application for Employer Identification Number (IRS Form SS-4)
  • SSA-1099 – Social Security Benefit Statement (Form SSA-1099)
  • SUTA – State Unemployment Tax Act
  • TDS – Tax deducted at source
  • TFN – Tax file number
  • UTR – Unique Taxpayer Reference
  • VAT – Value-added tax
  • W-2 – Wage and Tax Statement (IRS Form W-2)
  • W-2G – Certain Gambling Winnings (IRS Form W-2G)
  • W-4 – Employee's Withholding Certificate (IRS Form W-4)
  • W-7 – Application for IRS Individual Taxpayer Identification Number (Form…

See all 116 tax abbreviations →