The present disclosure relates to atilt assembly (1) for a powered wheelchair (15), comprising: an elongated base member (3) provided with an axial channel, a lifting member (5) configured to be received by the base member (3) and to move rectilinearly in the channel, between a retracted position and an extended position relative to the base member (3), a tilt frame (7) pivotally connected to the lifting member (5), the tilt frame (7) being configured for mounting a seat assembly (21) thereto, and an actuator arm (9) pivotally connected to the base member (3) and to the tilt frame (7), the actuator arm (9) being configured to be actuated between a retracted actuator position and a fully extended actuator position, wherein the tilt frame (7) is configured to obtain a perpendicular orientation relative to a central axis (11) of the lifting member (5) when the lifting member (5) is in the retracted position and the actuator arm is in the retracted actuator position and to be inclined relative to the central axis (11) when the lifting member (5) is in an extended position and actuator arm is in the retracted actuator position, to thereby provide a tilt functionality.
