Not usually, but the SSA will determine if you are engaging in substantial gainful activity (SGA) in making their decision. SGA is work activity that involves doing significant physical or mental activities. Generally, if  an individual has earnings from employment or selfemployment above a specific level set out in the regulations, it is presumed that he/she has demonstrated the ability to engage in SGA. If the individual  engages in SGA, he/she is not disabled.