About Form W-9, Request for Taxpayer Identification Number and Certification

Use Form W-9 to provide your correct Taxpayer Identification Number (TIN) to the person who is required to file an information return with the IRS to report, for example:

  • Income paid to you. 
  • Real estate transactions. 
  • Mortgage interest you paid. 
  • Acquisition or abandonment of secured property. 
  • Cancellation of debt.
  • Contributions you made to an IRA.

Current Revision


Recent Developments

Public Law 115-97 changed the backup withholding rate from 28% to 24%.


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