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What Is Form W-9: Request for Taxpayer Identification Number (TIN) and Certification? Form W-9, Request for Taxpayer Identification Number (TIN) and Certification, is an Internal Revenue Service (IRS) ...
A W-9 is an IRS form that independent contractors fill out to give businesses their tax ID number and personal information. Many, or all, of the products featured on this page are from our advertising ...