Is the claimant engaged in substantial gainful activity?
• Substantial gainful activity is work activity that involves doing significant physical or mental activities for pay or profit. 20 CFR §404.1572(b), 20 CFR §416.971. • SSA presumes that activity is substantial gainful activity if the earnings are more than $1000/month (2010 value). 20 CFR §416.974(b) (3).