Form 941 for Q1 is Due by April 30, 2026—Don’t miss the deadline.

Form 941 for Q1 is Due by April 30, 2026—Don’t miss the deadline. Start Filing Now

IRS Form W-9: Line by Line Instructions

Updated on January 22, 2025 - 11:00 AM Charles Hardy, TaxBandits

The W-9 form, officially titled "Request for Taxpayer Identification Number and Certification," is an important document in the U.S. tax system, especially for freelancers, independent contractors, and non-employees. It is used to supply your correct Taxpayer Identification Number (TIN) to businesses that must report your payments to the IRS.

In this guide, you’ll find step-by-step instructions for filling out a Form W-9.


TaxBandits for Every Business

Create, Fill out, E-sign, and Download or Share your
W-9 for Free!

Fill Out W-9 Now