Social Security program providing cash disability benefits and eventual Medicare eligibility to Disabled Adult Children (DAC) of retired, disabled, or deceased workers, requiring zero work history from the beneficiary. Disability onset must occur before age 22 and the child must be unmarried. Benefit = 50% of the parent's Primary Insurance Amount (PIA) if the parent is alive; 75% if the parent is deceased. Same five-month waiting period and 24-month Medicare wait as disabled workers. Administered under Title II of the Social Security Act, formally the Old-Age, Survivors, and Disability Insurance (OASDI) program, not Supplemental Security Income (SSI).
When a parent (1) claims Old-Age and Survivors Insurance (OASI) retirement benefits, (2) qualifies for Disability Insurance (DI) disabled worker benefits, or (3) dies, their adult child with a disability onset before age 22 may apply for DAC benefits. Social Security Administration (SSA) applies the standard five-step disability determination. Because DAC have no earnings history, their benefit is fixed at 50% (or 75% if parent is deceased) of the parent's PIA, making DAC benefits systematically lower than disabled worker benefits (which reflect the beneficiary's own lifetime earnings). Many DAC with low DAC benefit amounts continue to receive SSI simultaneously until the two benefits reach parity. DAC become eligible for Medicare 24 months after the first benefit payment, at which point states have an incentive to transition them from Medicaid.
DAC are among the most long-tenured and least work-oriented segment of the SSD caseload. Many enter the rolls in their late teens or early 20s and will remain on them for 40+ years, accumulating decades of Medicare costs. Policy discussions focused on employer accommodation, delayed application, or return-to-work incentives largely bypass this population, whose disability precedes any labor market attachment. The state Medicaid cost-shifting incentive (states benefit when DAC transition to Medicare) creates a structural driver of DAC caseload growth that is independent of program generosity or eligibility liberalization. As the baby boomers continue aging and their disabled adult children reach SSD-eligible ages, the DAC share of young SSD awards is expected to continue rising.