Abstract: An assistive apparatus with a backrest assembly is disclosed to solve one of the problems of conventional toilet seats in lacking proper back support for individuals. The assistive apparatus also helps to put individuals sitting further forward to help the individuals to use the toilet much more easily. The assistive apparatus provides an adjustable toilet backrest assembly for supporting a human back. The backrest assembly includes a backrest pad, a top support frame connected to the backrest pad, and a bottom support frame. The backrest pad is designed to relieve pressure on the back of a person. The back support portion comprises a backrest frame and a back pad attached on the backrest frame for supporting the human back. The backrest frame provides means for adjusting height of the back pad to accommodate different height of the human back.