What is the “Doughnut hole” in Part D Medicare coverage, and how does it work?

The Medicare Part D “doughnut hole” was a coverage gap that existed until 2024, where beneficiaries faced higher out-of-pocket costs for prescriptions after reaching certain spending thresholds. During the gap phase, people paid significantly more for their medications until they qualified for catastrophic coverage. The coverage gap was gradually reduced through the Affordable Care Act and later fully eliminated by the Inflation Reduction Act of 2022. By 2020, beneficiaries paid 25% for both brand-name and generic drugs while in the gap, but the doughnut hole itself was completely eliminated in 2025. Starting in 2025, Medicare introduced a revolutionary change with an annual out-of-pocket spending cap that replaced the old doughnut hole system. For 2026, once your out-of-pocket spending on covered Part D drugs reaches $2,100, you pay nothing for covered medications for the remainder of the year. This represents an improvement over the previous system where beneficiaries faced unpredictable costs and higher percentages during the coverage gap phase. The new structure provides complete financial protection and makes prescription costs entirely predictable throughout the year.