Medicare Part D: Prescription Drug Coverage in 2026.
Part D helps pay for the medications you take. And 2026 brings the biggest improvement in the program’s history — the old “donut hole” is gone, and there’s now a hard cap on what you’ll spend all year. May River Medicare is a nationwide independent agency; we compare every plan against your exact drug list, at no cost.
Three things to understand first
It’s optional but important
Part D is prescription coverage sold by private plans. If you take medications, going without it usually means a permanent penalty later.
Two ways to get it
As a stand-alone drug plan alongside Original Medicare, or built into a Medicare Advantage (MA-PD) plan.
Your plan’s list matters most
Every plan has its own formulary — the list of drugs it covers and at what tier. The right plan depends entirely on your specific medications.
Part D just got dramatically better
Thanks to recent federal reforms, Part D is simpler and far more protective than it was even two years ago. Here’s what changed.
A true $2,100 spending cap
Once your out-of-pocket drug costs reach $2,100 for the year, you pay $0 for covered medications the rest of the year. As recently as 2024, that threshold was $8,000.
The donut hole is gone
The confusing coverage gap that spiked costs mid-year has been permanently eliminated. Part D now has just three simple phases.
$35 insulin cap
Covered insulin is capped at $35 per month per product — no matter your plan’s deductible or the drug’s tier.
Monthly payment option
The Medicare Prescription Payment Plan lets you spread your out-of-pocket drug costs into predictable monthly payments — no interest, no fees.
Three simple phases in 2026
Deductible
You pay 100% of drug costs until you meet your plan’s deductible — up to $615 in 2026. Some plans have a lower deductible or none at all.
Initial Coverage
You pay copays or coinsurance (often around 25%) on covered drugs. This continues until your out-of-pocket total reaches $2,100.
Catastrophic
Once you hit the $2,100 cap, you pay $0 for covered drugs for the rest of the calendar year.
What Medicare Part D costs in 2026
| Part D cost (2026) | Amount |
|---|---|
| Yearly out-of-pocket cap (then you pay $0) | $2,100 |
| Maximum annual deductible | Up to $615 |
| Average stand-alone plan premium | About $34–39 / mo |
| Drug portion of a Medicare Advantage plan | Often much lower |
| Covered insulin (per month, per product) | $35 max |
| Higher-income surcharge (IRMAA) | Added to premium |
The $2,100 cap only applies to drugs your plan actually covers. If a medication isn’t on your plan’s formulary, you could pay full retail — and it won’t count toward the cap. That’s exactly why matching your specific prescriptions to the right plan matters so much, and why we run your full drug list before recommending anything.
Plans change their formularies, tiers, and premiums annually. A drug on a low tier this year can jump to a high tier next year. During the Annual Election Period (Oct 15 – Dec 7), we re-check your plan against your current medications so you’re never overpaying.
The Part D late enrollment penalty is permanent
If you go without Part D (or other creditable drug coverage) after you’re first eligible, Medicare adds a penalty to your premium — for as long as you have Part D. It’s calculated from how many months you went without coverage. Even if you don’t take many drugs today, enrolling on time protects you from this lifelong cost. We’ll help you get the timing right.
Find the Part D plan that actually covers your medications.
Give us your prescription list and we’ll compare every plan in your ZIP code to find the lowest total yearly cost — premium, deductible, and copays combined. No carrier bias, no cost to you.
Compare plans, talk to a licensed advisor, or get started online in minutes.
May River Medicare Insurance is an independent agency and is not affiliated with or endorsed by the U.S. government, the federal Medicare program, or CMS. We do not offer every plan available in your area. Cost figures reflect 2026 amounts and averages published by CMS and independent sources; your actual costs depend on your plan, medications, and ZIP code. For a complete list of your options, contact Medicare.gov or 1-800-MEDICARE.