W9 Tax Form 2021 Irs – The IRS forms W-9, Request for Taxpayer Identification Number (and Certification) are all generally used. A client might request that you total and send a W-9 if you own a business or work independently. This may permit them to accurately prepare their 1099-NEC forms and report any payments produced to you at year’s end. W9 Tax Form 2021 Irs w-9 form 2021 irs