Controller's Office
Paying Vendors and Contractors

Purchase Orders


    Seattle University requires purchase orders for all single items costing $500 or over (including sales or use tax). Purchases under $500 do not require a Purchase Order unless requested by the vendor. Purchase Orders for any equipment (including sales tax) exceeding $5,000 must be pre-approved by the Office of Vice President for Finance and Business Affairs.


    The following purchases require no Purchase Order:

    • Books & subscriptions by the library.
    • Utility bills and payroll.
    • Any purchase for which a vendor does not accept Purchase Orders.
    • Bookstore purchases for resale.


    Please contact the Campus Support Services / Purchasing to initiate a Purchase Order.

    How Purchase Orders Affect Your Budget

    Once a Purchase Order is established, funds are encumbered. Thus, your available funds are reduced by the Purchase Order amount. When the invoice is paid later, the actual invoice amount is posted to your budget and the encumbrance is removed.