A structure (1) for the rear portion of a vehicle is configured in such a manner that a high-mount stop lamp (5) is provided at the rear end of the vehicle body. The structure for the rear portion of a vehicle is configured so that regions on both outer sides of the region in which the high-mount stop lamp is mounted on the upper surface of the rear end are sloped more than a reference surface comprising the sloped surface of a roof panel (2), and so that the lower surface of the high-mount stop lamp is located above the rear field of view from the vehicle.