A vehicular parking automatic charging apparatus used in a vehicle includes a position acquirer that acquires a position of the vehicle, an area determiner that determines whether or not the position of the vehicle is in a charge parking area, a parking determiner that determines that the vehicle is placed in a parking state and that the parking state of the vehicle is ended, and a charging processor that executes a charge start process for starting charging on a basis that the position of the vehicle at a time when the parking determiner determines that the vehicle is placed in the parking state is in the charge parking area, and that executes a charge end process for ending the charging on a basis that, after execution of the charge start process, the parking determiner determines that the parking state of the vehicle is ended.