An Arabic term (مقاصة) for set-off, which it is the discharge of a debt receivable against a debt payable, whether partially or for the whole amount of debt. In other words, it is the discharge of two debts where each party is a creditor and debtor at the same time. Maqassa is generally classified as mandatory maqassa and contractual maqassa.

For instance, modern transactions involving maqassa include clearing of debts associated with credit cards and debit cards (a set-off can take place between financial institutions operating their credit or debit card line of business through international or national clearing systems).

The currency swaps that involve the payment or receipt of riba are not permissible by shari’a.