A transfer device for a vehicle includes a casing, a cylindrical input shaft supported by the casing, a first end of the input shaft engaging with a driveshaft, an output shaft supported on an internal surface of a second end of the input shaft and engaging with the second end of the input shaft, the output shaft including an oil passage formed therein in an axial direction, and a lubrication fluid supply passage supplying a lubrication fluid from the casing to the oil passage. The lubrication fluid supply passage includes an inner fluid tight chamber annularly formed with an external surface of the output shaft and an internal surface of the input shaft, a first passage establishing a communication between the inner fluid tight chamber and the oil passage, and a second passage establishing a communication between the inner fluid tight chamber and an external surface of the input shaft.