A remittance advice is a statement that accompanies a payment to a supplier, detailing what was paid. The supplier uses the information on a remittance advice to flag outstanding receivables in its accounting system as having been paid. A remittance advice is frequently printed as an attachment to a check payment. A remittance advice includes the invoice number and payment amount for each invoice paid.
When a business makes an electronic payment, it can still issue a remittance advice, which is typically contained within an e-mail.