A maqassa (مقاصة) that involves the discharge of two debts by the bilateral consent of the two parties to extinguish their obligations towards each other. Each party should be a debtor and creditor at the same time. This maqassa can occur even if the two debts are similar in kind, description or maturity, or if the two debts are not equal in amount. In this event, maqassa can be based on an equivalent amount on both sides, whereas the party that is owed the larger debt will still be creditor as to the remaining amount.

This set-off is also known as a contractual set-off.