For disability insurance benefits, it all depends upon how much you have worked and earned in the past. For disabled widow's or widower's benefits, it depends upon how much the late husband or wife worked and earned. For disabled adult child benefits, it all depends upon how much the parent worked and earned. For all types of SSI benefits, there is a base amount that an individual with no other income receives. Other income that an individual has reduces the amount of SSI which an individual can receive.