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  1. About Form W-9, Request for Taxpayer Identification Number

  2. Forms & instructions | Internal Revenue Service

  3. Filing IRS Form W-9 - TurboTax Tax Tips & Videos

  4. What Is a W-9 Tax Form? - H&R Block

  5. W-9: What It Is, How to Fill It Out - NerdWallet

  6. Filling Out Form W-9: Request for Taxpayer ... - Investopedia

  7. How to fill out a W-9 form: step-by-step instructions & tips - Blog

  8. Forms and associated taxes for independent contractors