Accumulator adjustment programs prevent copay assistance from counting toward deductibles

Insurers increasingly use "copay accumulator adjustment" programs that accept manufacturer copay assistance cards at the pharmacy but refuse to count those payments toward the patient's deductible or out-of-pocket maximum. A patient on a specialty drug for multiple sclerosis uses a $15,000/year copay card, assumes they are building toward their $4,000 deductible, then in month 5 when the copay card exhausts, discovers they still owe the full $4,000 deductible and face paying full price for the remaining months. This effectively doubles the patient's annual cost while the insurer pockets both the manufacturer's copay assistance and the patient's deductible. It persists because there is no federal regulation requiring transparency about accumulator programs, and insurers bury the policy in plan documents that virtually no enrollee reads before selecting a plan.