An interior rearview mirror assembly for a vehicle includes a plastic bezel and a mirror reflective element. The bezel includes a perimeter bezel portion and a mirror mounting element unitarily formed with the perimeter bezel portion. The mirror mounting element is configured to pivotally attach to a mounting structure of a mounting assembly for mounting the interior rearview mirror assembly at an interior portion of a vehicle equipped with the interior rearview mirror assembly. The reflective element is disposed at the bezel and has a front surface and a rear surface, with the front surface generally facing towards and being viewable by a driver of the equipped vehicle. The mirror mounting element is disposed rearward of the rear surface of the reflective element when the reflective element is disposed at the bezel.