A lease agreement in which the amount you owe at the end of the lease term is based on the difference between the residual value of the leased property and its realized value. Your lease agreement may provide for a refund of any excess if the realized value is greater than the residual value. In an open: end consumer lease, assuming you have met the use and wear standards, the residual value is considered unreasonable if it exceeds the realized value by more than three times the base monthly payment (sometimes called the “three: payment ruleâ€).