set off(redirected from set)
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2. In banking, the right of a bank to seize a debtor's account balance held at that bank if a debt is in or near default. Some jurisdictions limit the right of setoff; for example, the United States does not allow it to apply for commercial loans or credit card debt.
To deduct debts from each other.Oftentimes defaulting debtors will claim that they have not paid their obligations because of a right of setoff against injuries suffered as a result of wrongdoing by the creditor.Lenders with bank deposits in the name of their borrower may set off the bank account against the mortgage debt if there is a default.