If you take regular prescriptions, your Medicare Part D coverage works differently than it did just a couple of years ago. The changes are good news for most people — but they’re easy to miss. Here’s what’s new and what it means for your wallet.
The donut hole is gone
For years, Part D had a confusing “coverage gap” — the so-called donut hole — where you’d suddenly pay much more out of pocket after your drug spending hit a certain point. That gap is now gone.
In its place, Part D has three simple phases:
- Deductible — you pay the full negotiated price for your drugs until you meet your plan’s deductible (if it has one).
- Initial coverage — you and your plan share the cost, usually as copays or coinsurance.
- Catastrophic — once your out-of-pocket spending reaches the annual cap, you pay $0 for covered drugs the rest of the year.
No more falling into a gap mid-year. The path is steady and predictable from January to December.
A $2,000 cap on what you pay
The biggest change is the new $2,000 annual out-of-pocket cap on covered drugs in 2026. Once your own spending on covered prescriptions adds up to $2,000, you’re done paying for them for the rest of the calendar year.
For someone on an expensive specialty medication, this is a major relief — in the past, those costs could run into the thousands with no ceiling. If you’d like to see how your specific prescriptions stack up against the cap, our Drug Cost Calculator can give you a clear estimate. You can read a fuller breakdown in the $2,000 drug cap explained.
Paying in monthly installments instead of all at once
Hitting that $2,000 cap is great, but what if a big bill lands in January before you’ve spread costs out? That’s where the Medicare Prescription Payment Plan comes in — you may hear it called M3P.
It’s a free option that lets you spread your out-of-pocket drug costs across the year in monthly payments instead of paying a large sum all at once at the pharmacy counter. To be clear, it doesn’t lower your total cost. It simply smooths out when you pay, which can make a tight budget far easier to manage. You opt in through your plan, and there’s no extra fee to use it.
Cheaper insulin and free vaccines
Two more changes are worth knowing:
- Insulin is capped at $35 for a month’s supply, with no deductible to meet first. If you’ve been paying more than that, your pharmacy should be charging the lower amount automatically.
- Adult vaccines recommended for routine use — like the shingles shot — are $0 under Part D. No copay, no coinsurance.
These apply across Part D plans, so they’re not something you have to shop around for.
Premiums still vary — review your plan each year
Even with all these improvements, plans are not identical. The national base premium for 2026 is $38.99 a month, but individual plans price above and below that, and — just as importantly — they cover different drugs with different copay tiers.
That means the plan that fit you best last year may not be the best fit now. Drug lists change, prices shift, and your own prescriptions change too. A quick check during the Annual Enrollment Period each fall can save real money. Before you decide, it’s smart to confirm your medications are covered using our Formulary Lookup.
What to do next
The redesigned Part D quietly removed a lot of the old guesswork. To make the most of it:
- Know your three phases and the $2,000 cap.
- Ask about the Medicare Prescription Payment Plan if a large bill would be hard to handle up front.
- Confirm your insulin is being charged at $35 or less.
- Review your plan every fall, since premiums and drug lists vary.
If you’d like a second set of eyes on whether your current plan still fits, I’m happy to walk through it with you. Reach out any time through our contact page — no pressure, just a friendly conversation about what works best for you.