Medicare · Prescription Coverage

Part D in 2027: What the $700 Deductible and the $2,400 Cap Actually Mean

Medicare's drug benefit has been rebuilt over the last few years, and 2027 shifts the numbers again. Here's how the money moves across a year — and the one page you should print before you compare plans.

Viva Insurance Group · North Miami, FL · For the October 15 – December 7, 2026 enrollment period

Most people we sit down with can tell us their premium. Almost nobody can tell us their deductible, and very few know there's now a hard ceiling on what they can be charged for covered drugs in a year.

That ceiling is the most important thing that's happened to Medicare prescription coverage in a long time. Here's how it works in 2027.

Three phases, no donut hole

The old coverage gap is gone. Part D now moves through three stages in a calendar year, and every January it resets to zero.

Phase 1 — The deductible

You pay the full negotiated price for your drugs until you've spent up to your plan's deductible. In 2027, the most a plan can charge is $700, up from $615 in 2026.

Read that carefully: the most a plan can charge. Many plans set a lower deductible, and many exempt generic tiers from the deductible entirely, so your everyday maintenance drugs stay at a flat copay from day one. Two plans with identical premiums can behave completely differently here.

Phase 2 — Initial coverage

Once the deductible is met, you and the plan share costs. You pay a copay or a percentage; the plan pays the rest. This is where most people spend the whole year and never move past it.

Phase 3 — Catastrophic

When your out-of-pocket spending on covered drugs reaches $2,400 in 2027 (up from $2,100 in 2026), you pay $0 for covered prescriptions for the rest of the calendar year.

Not a reduced copay. Nothing. That is the protection, and it is the reason the annual number matters so much to anyone on an expensive medication.

Who actually feels the $300 difference

Be honest about which group you're in, because the answer changes what you should do this fall.

If you take a few generic medications — blood pressure, cholesterol, a thyroid pill — you will most likely never reach $2,400, and you may never touch a deductible either. The cap is insurance you hope not to use. What matters more for you is whether your specific drugs are still on the plan's list at a good tier next year.

If you take a brand-name or specialty drug — a biologic, an injectable, a newer diabetes or cancer medication — you probably hit the cap every year, often in the first few months. For you, the practical effect of 2027 is straightforward: up to $300 more out of pocket before you reach $0, and a deductible that may be $85 higher on the way there.

If you're somewhere in between, this is exactly the situation where running the actual numbers beats guessing. A plan with a $0 deductible and a $12 higher monthly premium can easily be the cheaper plan over twelve months, or the more expensive one. It depends entirely on your list.

The January problem, and how to avoid it

Because everything resets on January 1, people who finished the year paying nothing walk into the pharmacy in January and get handed a bill for several hundred dollars. It is the same benefit working as designed, and it still ruins people's month.

Medicare's Prescription Payment Plan exists for this. Instead of paying a large amount at the counter, you can spread your out-of-pocket drug costs into monthly payments across the year. It doesn't reduce what you owe overall — it changes the timing so a January deductible doesn't land all at once.

To be explicit, because this matters: the Prescription Payment Plan does not reduce your drug costs. You pay the same total over the year. It only spreads the timing.

You have to opt in, and it doesn't help everyone. If your costs are low and even, it adds paperwork for no benefit. If you're facing a big front-loaded bill, it can be the difference between filling a prescription and skipping it.

Extra Help is worth checking, and most people don't

Medicare's Extra Help program (also called the Low-Income Subsidy) can substantially reduce or eliminate Part D premiums, deductibles, and copays for people who qualify on income and assets. Florida also has programs that can pay Medicare premiums for people at certain income levels.

A meaningful number of people who qualify have never applied, usually because they assumed they earned too much. The income limits are higher than most people expect, and there's no penalty for asking. If you're unsure, it takes about ten minutes to find out.

Your December 7 checklist

1. Write down every prescription. Exact drug name, dose, and how often you take it. Not "my blood pressure pill" — the actual name on the bottle.
2. Add the pharmacy you use. Preferred versus standard pharmacy status can change your copay on the identical drug, and preferred networks change year to year.
3. Check each drug against the 2027 formulary for any plan you're considering. Look for three things: is it covered, what tier is it on, and does it now require prior authorization or step therapy?
4. Compare annual totals — premium plus deductible plus your expected copays — not the monthly premium alone.
5. Decide by December 7. Coverage starts January 1.

That third step is where the real money hides. A drug moving from tier 2 to tier 4 can change your yearly cost by more than any premium difference you'd ever notice on a comparison page.

Related: Medicare changes for 2027 · Medicare, explained simply · All resources