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Pay an Invoice

Payment of an invoice requires a purchase order unless the payment is on the list of acceptable transactions which allow direct payment to the vendor.

Invoice Submission

All goods and services should have a purchase order created through UMass BuyWays system, or be paid for with a ProCard, with the exception of the items listed under Non-Purchase Order Payment Vouchers.

All invoices should be sent directly from the vendor to the Accounts Payable Department at the address far below.

IMPORTANT: Invoices attached to requisitions in UMass BuyWays are not forwarded to Accounts Payable for payment.  All invoices to be paid should be submitted directly to Accounts Payable with a Purchase Order number and all appropriate approvals.

Paper Invoices

If a department should receive an original invoice directly, it should be forwarded immediately to Accounts Payable for payment in PDF format via email to, along with appropriate signature approval certifying goods or services have been received as ordered and that the invoice is accurate. A clear reference to the appropriate Purchase Order number is required. The original should be kept within the department to avoid duplicate payments.

In the rare instance that no Purchase Order exists, please forward the original invoice with the appropriate speed type or chart field string noted clearly on the invoice, with signature indicating approval for payment. Accounts Payable will review the invoice with the Purchasing & Strategic Contracting Department to determine the PO requirements.

Electronic Invoices

Invoices pertaining to UMass BuyWays orders are received from participating vendors electronically through the University’s e-procurement portal and transmitted in a batch for payment processing. These electronic invoices are subject to the same payment processing rules as non-electronic invoices.