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 ...

W-4, and W-2 are important for reporting income and taxes in 2025. W-9 is filled by workers, 1099 reports extra income, W-4 ...

An Internal Revenue Service Form W-9, Request for Taxpayer Identification Number, is an informational form that employers and prime contractors use to collect information they need to process their ...

Katharine Paljug is a financial writer and editor with over a decade of industry experience. Her writing has covered nearly every aspect of the financial world, from investing in forex to paying for ...