Medicare caps what you pay for covered prescriptions each year

Before this law, Medicare Part D had no general out-of-pocket ceiling. People without the program’s low-income subsidy kept paying a share of covered prescriptions even after they reached catastrophic coverage.

The Inflation Reduction Act fixed that in two steps. In 2024, it ended the 5% share enrollees still owed after reaching catastrophic coverage. In 2025, it set a hard yearly cap on out-of-pocket costs for covered drugs. Once you hit it, you pay nothing more for covered drugs for the rest of the year. The cap rises with drug costs: $2,000 in 2025, $2,100 in 2026 and $2,400 in 2027.

You don’t have to apply. The cap is built into Medicare drug coverage. If big bills early in the year are hard to manage, you can also ask your plan to spread your costs into monthly payments. That option doesn’t lower what you owe, but it evens it out.

The idea had support from both parties. In 2019, Democratic Sen. Ron Wyden and Republican Sen. Chuck Grassley proposed a $3,100 cap in a Senate Finance Committee bill, and Rep. Frank Pallone’s H.R. 3 set a $2,000 cap. Senate Majority Leader Chuck Schumer and Sen. Joe Manchin negotiated the final package. Congressional Democrats and two independent senators passed it without Republican votes. Vice President Kamala Harris broke a 50–50 Senate tie, and President Joe Biden signed it on August 16, 2022.