Unpaid wages refer to the amount of money that an employee has not yet received from their employer for the work they have performed. This term can also be referred to as outstanding salary, due wages or compensation owed. It can also be called back pay when an employee was underpaid in the past and the employer is now required to pay the difference. It is also commonly known as missed or delayed payment. Employers are legally obligated to pay their employees for the work they have performed, and employees have the right to take legal actions if they are not paid their due wages.