Revision of Form W-9, Request for Taxpayer Identification Number and Certification--2-NOV-2011
A new revision of Form W-9, dated December 2011, is now available for download at IRS.gov. Taxpayers may use either the new revision or the January 2011 edition. A tax classification box is not required to be checked on either revision.
The updated version of Form W-9 (Rev. December 2011) is now available for download.