If you have a business, you may need to fill out IRS Form W-9 Katharine Paljug is a financial writer and editor with over a decade of industry experience. Her writing has covered nearly every aspect ...

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 ...

The IRS continues to roll out drafts of some 2026 tax forms, including a draft of Form W-9, Request for Taxpayer Identification Number and Certification. Here’s a look at what’s new—and why it matters ...

Forbes contributors publish independent expert analyses and insights. Robert W. Wood is a tax lawyer focusing on taxes and litigation. This article is more than 5 years old. Before paying you, many ...