W9 Tax Form 2021 Editable – The IRS forms W-9, Request for Taxpayer Identification Number (and Certification) are all generally used. You may be asked by clients to complete and mail a W-9. The client will require it to properly prepare your 1099-NEC and report the payments that they made at the finish. W9 Tax Form 2021 Editable is there a w-9 form for 2020