How to fill out a W9 for a nonprofit organization

If you're wondering how to fill out a W-9, you've come to the right place! The IRS W-9 form is used when a nonprofit needs to provide its tax identification number (TIN) to another organization or request it from a contractor or business. In this e-book, you’ll learn when a W-9 form is needed, how to fill it out, and how to submit it to the IRS.