Downloadable W9 Tax Form 2021 – W-9–Request to Taxpayer Identity Number and Certificate–is a typical IRS form. When you work for a client, or if your company is independent, they may ask that you fill out and return a W-9 to make sure they are able to prepare the 1099-NEC form accurately and then report the payments you obtain at the close of the year. Downloadable W9 Tax Form 2021