Accounts Payable, a unit within Procurement Services, is responsible for processing supplier invoices for the payment of goods and services in compliance with the terms and conditions specified in the UW Purchasing & Accounting System (PAS) Purchase Order agreement. AP must have a valid vendor invoice in order to process payment.
If you have determined a UW PAS purchase order (PO) is the best method for your procurement the instructions in the the Step-by-Step Purchasing Instructions can help ensure timely payment.

Key Points for Supplier Invoices:

  • All invoices going to Accounts Payable for payment processing must reference a valid UW Purchase order number (six digits) 
  • Vendor name and remit-to address must be clearly stated on the invoice 
  • Payment is made net 30 of the date a complete invoice is received at UW Accounts Payable unless otherwise agreed upon in the terms and conditions of the PO 
  • Payments for invoices $10,000 and above are not finalized until a department representative confirms the item(s) were received in complete and working order