A substantial gainful activity (SGA) for a disabled person is a test SSA uses in reviewing the work that an applicant is able to perform to support himself or to bring in some kind of income despite his disability. This work will be used as a part of the general review determining if an individual is disabled or unable to perform gainful activity to provide himself or his family with financial support. The SGA is also used during a trial work period for people who are already receiving benefits to decide if the disability status should be continued and benefits continued.