Medicare Part D

The 2027 Medicare Part D Cap Explained in Independence

INDEPENDENCE, Mo. — Starting Jan. 1, 2027, Medicare's Part D prescription drug benefit caps what enrollees pay out of pocket for covered medications at $2,400 for the year. Once you hit that number, you pay nothing more for the rest of 2027 on covered Part D drugs.

A big change is landing at the pharmacy counter

That's a meaningful shift for anyone in Jackson County who takes expensive prescriptions — and it builds on a change that already happened in 2025, when the old "donut hole" was eliminated.

If you're comparing coverage during the Annual Enrollment Period (Oct. 15 – Dec. 7), understanding how the new cap and the optional payment plan work can help you avoid a costly mistake.

What the Part D cap actually covers

The cap applies to your out-of-pocket spending on drugs covered by your Part D plan. That includes your deductible, copays, and coinsurance on covered prescriptions filled at a network pharmacy.

A few important details from Medicare's Part D program rules (medicare.gov):

• The Part D deductible is capped at $615 in 2026 and $700 in 2027. Some plans set it lower.
• The cap ($2,100 in 2026, $2,400 in 2027) is per person, per calendar year. It resets on Jan. 1, 2027.
• Premiums do not count toward the cap.
• Drugs that aren't on your plan's formulary, and medications covered under Part B rather than Part D, don't count either.

The cap applies whether you have a stand-alone Part D drug plan or drug coverage built into a Medicare Advantage plan.

The coverage gap ("donut hole") is gone

For years, Part D had four phases, including a confusing coverage gap where your share of costs could suddenly jump. That gap ended in 2025.

Now Part D has just three phases:

1. Deductible phase — you pay 100% of drug costs until you meet your plan's deductible (up to $700 in 2027). 2. Initial coverage phase — you pay a copay or coinsurance; your plan pays the rest. 3. Catastrophic phase — once your out-of-pocket spending hits $2,400 in 2027, you pay nothing more for covered drugs the rest of the year.

That's a simpler system, and it's designed to protect people with high drug costs from open-ended bills.

The Medicare Prescription Payment Plan: spreading costs out

Hitting a $2,400 ceiling is helpful — but $2,400 early in the year is still a lot to pay at once. That's where the Medicare Prescription Payment Plan comes in.

This is a free, optional program (sometimes called "M3P") that lets you spread your out-of-pocket drug costs across the calendar year in monthly bills instead of paying the full amount at the pharmacy.

Here's how it works in plain terms:

• You still have the same Part D coverage. Your total costs don't go up or down.
• Instead of paying the pharmacy directly, your plan bills you monthly.
• The monthly bill is calculated using a formula set by Medicare, based on what you owe and how much of the year is left.
• You can opt in before the plan year starts or at any point during the year.

Who benefits most? People who expect high drug costs early in the year — for example, someone starting an expensive specialty medication in January. Who might not need it? People with modest, steady drug costs spread evenly across the year.

You have to actively sign up with your Part D plan. It doesn't happen automatically.

Common mistakes to avoid this enrollment season

A few things trip people up every year:

• Assuming your current plan is still the best fit. Formularies, tiers, and pharmacy networks change every year. Log in to the Medicare Plan Finder at medicare.gov and re-run your drug list.
• Only looking at the premium. A low-premium plan can cost more overall if your drugs sit on higher tiers.
• Forgetting IRMAA. Higher-income enrollees pay a surcharge on Part B and Part D premiums. In 2026, IRMAA begins above $109,000 in income for a single filer (based on your 2024 tax return).
• Missing the deadline. Changes made during Oct. 15 – Dec. 7 take effect Jan. 1. If you're in a Medicare Advantage plan, you get one more window — Jan. 1 through March 31 — to switch Advantage plans or return to Original Medicare.

What this looks like locally

Independence sits in Jackson County, which is where Medicare sets plan availability. For 2027, the county has 49 Medicare Advantage plans from 8 carriers, with both stand-alone Part D plans and Medicare Advantage plans with drug coverage sold here. Blue Cross Blue Shield (HCSC) is not offering plans in the county next year. The exact number of options available to you depends on your ZIP code and can be viewed on the Medicare Plan Finder.

For personalized help — especially if you're weighing whether the payment plan makes sense for your prescriptions — Missouri's State Health Insurance Assistance Program (SHIP), called CLAIM, offers free, unbiased counseling.