Return to Invoice (RTI) is an add-on cover that is part of comprehensive car insurance plans. It covers the gap between the actual value of the car and its Insured Declared Value (IDV) . In case of total loss or theft of the insured vehicle, RTI allows the policyholder to receive compensation equal to the cars invoice value, rather than the depreciated value of the car. This means that instead of receiving the IDV, which is the current market value of the car, the policyholder will receive the amount mentioned in the invoice of the car at the time of purchase. RTI is an additional coverage that can be purchased with a car insurance policy, and it helps to fetch the purchase value of the car in case of total loss or theft.