A rear-side reinforcement structure for a motor vehicle body includes at least one side member extending in vehicle longitudinal direction, a shock absorber reinforcement profile and an outer rear end reinforcement profile. The shock absorber reinforcement profile is connected to the side member with a lower front profile section located in travelling direction at the front. The shock absorber reinforcement profile is connected to the rear end reinforcement profile with a rear profile section that is spaced from the side member and facing a rear end of the body. The outer rear end reinforcement profile extends from the rear profile section of the shock absorber reinforcement profile to the side member and with a lower connection section is connected to the side member.