Give word / term or phrase for the following statement.
Payment of the bill before due date.
Explanation: A bill is said to be retired when the acceptor of a bill expresses his willingness to make the payment of the bill before its due date. In such cases, the holder of the bill generally allows a discount to the drawee, which is called rebate. This rebate is a gain for the party that makes the payment (i.e. the drawee) and is expense to the party receiving the payment (i.e. the drawer).