Tax and Federal Regulations Information

Domestic Vendors

  • Instructions W-9 -To be completed by the vendor when tax identification number issues occur.

  • Instructions SS-8 To be completed for determination of Independent Contractor Determination

Foreign Vendors

  • Instructions for W-8 -Instructions for completing forms W-9BEN, W-8BEN-E, W-8ECI, W-8EXP and W-8IMY

Tax Information

Office of Management and Budget

Federal Acquisition Regulations