Abstract: A tailgate step apparatus including a tailgate with an inner edge and an outer edge, a first channel affixed within the tailgate so as to extend between the inner and outer edges, a second channel affixed within the tailgate so as to extend between the inner and outer edges in generally parallel spaced relationship to the first channel, a frame assembly slidably received within the tailgate between the first and second channels so as to be movable between a first position within the tailgate to a second position extending outwardly of the tailgate, and a step member pivotally connected to the frame so as to have a surface positioned outwardly of the outer edge of the tailgate when the frame assembly is in the second position. The step member is movable so as to assume a horizontal orientation when the frame assembly is in the second position. The frame assembly is retractable along the first and second channels so as to be received interior of the tailgate.