An incentive granting method is implemented by a parking lot management system in which incentive information is stored. The incentive information is associated with a parking section. The method is executed to grant an incentive indicated by the incentive information to a user who uses a parking section associated with the incentive information. The method includes displaying pieces of incentive information associated with multiple parking sections on a display terminal connected to the parking lot management system via a network. The method includes detecting a vehicle parked in one of the multiple parking sections. The vehicle matches vehicle information registered in association with account information of the user. The method includes applying, to the account information at predetermined timing, an incentive indicated by one of the pieces of incentive information associated with the one of the multiple parking sections.