Business Services Forms: IRS Answer a few simple questions and the platform will fill out the official IRS form, including your signature. And if it’s a W-9 or W-8, we’ll email it to the person who requested it. Choose the form you need: SS-4 (EIN) W-9 W-8BEN W-8BEN-E 8822-B 8832 2553 (S-Corp) 1099-NEC