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GAO State of Arizona Substitute W-9 & Vendor Authorization Form

This form is required in order to establish or update a vendor account with the State of Arizona. A vendor that provides goods or services to an Arizona state agency and receives payment from the State of Arizona must complete this form. Once completed, mail the form to:

DEPARTMENT OF ADMINISTRATION/GENERAL ACCOUNTING
OFFICE ATTN: VENDOR SETUP
100 N 15TH AVE, STE 302
PHOENIX, AZ 85007