A commode seat for a conventional foldable wheelchair including a solid base that rests upon the horizontal seat support rails of a wheelchair when opened. The rectangular opening in the base is centered in the seat. The seat has a waste receptacle support pan mounted on the underside in alignment with the rectangular opening. The support pan is positioned to receive the similarly shaped removable waste receptacle. A U-shaped lifting plate is hinged attached onto the front of base and a sliding center section to cover waste receptacle opening is powered by direct current electric motors. Motors receive current from a power pack mounted on underside of seat. The seat can be operated by a seated invalid without assistance.