--- title: "W-9 Form" slug: "w-9-form" updated: 2026-10-06T14:07:15Z published: 2026-10-06T14:07:15Z canonical: "help.8x8.com/w-9-form" --- > ## Documentation Index > Fetch the complete documentation index at: https://help.8x8.com/llms.txt > Use this file to discover all available pages before exploring further. # W-9 Form **Form** W-9 From is an official IRS document used to provide a correct Taxpayer Identification Number (TIN) and certify your tax status to a requester. [W-9 - 8x8 Inc. 2026.pdf](https://cdn.us.document360.io/e3a59e39-abd3-4423-964c-0a4008dc5673/Images/Documentation/W-9 - 8x8 Inc. 2026(2).pdf?sv=2026-02-06&spr=https&st=2026-11-03T23%3A57%3A56Z&se=2026-11-04T00%3A57%3A56Z&sr=c&sp=r&sig=j%2FOJ07aqmqAjfROrkpDIZgG9aJX4Pf%2FdFRSzCxJF5vU%3D)