W-9 Request for Taxpayer Identification Number & Certification

The document is an IRS Form W-9, Request for Taxpayer Identification Number and Certification. This form is used by individuals and entities to provide their correct Taxpayer Identification Number (TIN) to those who are required to file information returns with the IRS. The form includes instructions for completing it, including guidelines for different types of filers (individuals, sole proprietors, corporations, etc.) and information on backup withholding and FATCA reporting.