The Trial Work Period (TWP) is a Work Incentive that allows SSDI recipients to test their ability to work for at least 9 months and still receive full disability benefits, regardless of their earnings. The 9 months do not have to be consecutive, but are counted within a rolling 60-month period. Any month in which the earnings exceed a certain amount ($970 in 2022) is considered a month of service for the TWP. After completing the TWP, SSDI recipients enter a 36-month Extended Period of Eligibility (EPE), during which they may receive benefits for any month their earnings are below the Substantial Gainful Activity (SGA) level ($1,350 for non-blind individuals and $2,260 for blind individuals in 2022). References: Trial Work Period - The United States Social Security Administration, What You Need to Know About the Trial Work Period, Trial Work Period (TWP) - Ticket to Work - Social Security