After all items have been checked and placed properly into storage, the packing slips and/or invoices must be received for accounts payable. If the supplies are one of several monthly deliveries from a single company, the invoices will be checked against a monthly billing statement. Before payment is made, all invoice balances must match those listed on the statement.
It may be necessary to pay an invoice upon receipt of the supplies. In this case, all supplies should be checked in, all backorders noted, and payment made as soon as possible. Some companies may offer a discount for quick payment. For example, the invoice may note that if the balance is paid within 10 days, the office may deduct 1% of the total billing. These discount offers must be taken full advantage of as they can add up to significant savings over the course of a year.