What's new for Medicare Part D in 2026?

As part of the Inflation Reduction Act  in 2026, Medicare Part D enrollees will enjoy the security of a $2,100 cap on out-of-pocket prescription drug costs. This includes any deductibles,* copays and coinsurance paid, but not premiums. 

Once a member reaches the $2,100 limit, their plan will cover 100% of the cost of covered medications for the rest of the plan year.

This cap applies to both stand-alone Part D plans and prescription coverage included in all-in-1 Medicare Advantage plans .

*The 2026 maximum Part D deductible is $615, up from $590 in 2025. 

2025 was the first year members had the option to spread the cost of their prescription drugs over the plan year rather than paying in full when they fill a prescription. New for 2026, participation in the plan will automatically renew from year to year unless you opt out.

The Medicare Prescription Payment Plan  doesn’t reduce the overall cost of medications, but it may make it easier for members to manage their healthcare expenses. 

Free vaccines

Any vaccines recommended by the Advisory Committee on Immunization Practices (ACIP) will be available to Medicare members at no cost—with no deductible or copay. The list of covered vaccines opens in new window may change each year based on the latest ACIP recommendations. 

Find the plan that fits

Paying for your medicines may challenge your budget but not taking them may harm your health. Whether you’re new to Medicare or you already have a plan, take the time to think about the coverage you need, then shop for the plan that fits.