Medicare in 2026: The Drug Cap, New Premiums & Your AEP Game Plan

If you have Medicare — or you're about to — 2026 is a year worth paying attention to. The headline is genuinely good news: for the second year running, there is a firm limit on how much you can be asked to pay out of pocket for your covered prescription drugs. At the same time, premiums and deductibles ticked up, the income surcharges that hit higher earners were adjusted, and the plans themselves quietly reshuffled their benefits, networks, and drug lists the way they do every autumn.

Here's the short version: in 2026 your out-of-pocket costs for covered Part D drugs stop at $2,100 for the year, the standard Part B premium is $202.90 a month, and the Medicare Annual Enrollment Period once again runs from October 15 to December 7. Everything else in this guide is the detail behind those numbers — what each figure means, where it comes from, and how to turn it into a sensible plan for the year ahead.

At TSM Life & Health, our philosophy is "educate first, plan second." So this article is exactly that: education. It is general information, not individualized advice, and it isn't affiliated with or endorsed by the government or Medicare. When you're ready to talk about your own situation, a licensed advisor can walk through it with you — but let's start with the facts.

What's actually changing in 2026

Every year the Centers for Medicare & Medicaid Services (CMS) publishes updated cost figures, and every year insurance carriers refresh their Medicare Advantage and Part D plans. For 2026, a handful of numbers matter most to your budget. Here they are at a glance, each one confirmed against official CMS releases.

Underneath those figures sits a program of enormous scale. Roughly 68 million Americans are enrolled in Medicare, and about 64.2 million of them carry both Part A and Part B. More than half — over 35 million people — are now in Medicare Advantage plans rather than Original Medicare. When a rule changes at this scale, it touches tens of millions of household budgets, which is exactly why an annual review pays off.

The Part D out-of-pocket drug cap, explained

This is the biggest structural change Medicare has seen in years, and it's the one most likely to help people with serious prescriptions. Thanks to the Inflation Reduction Act, Medicare Part D now includes a hard ceiling on what you personally pay for covered drugs in a calendar year. That ceiling was $2,000 in 2025 — the first cap of its kind — and for 2026 it rises modestly to $2,100 because the law indexes the amount to the growth in average Part D drug costs.

Here's what it means in practice. Once the deductibles, copays, and coinsurance you pay for covered Part D drugs add up to $2,100 during 2026, you pay $0 for those covered drugs for the rest of the year. According to the CMS Part D redesign program instructions, this cap applies whether you're in a stand-alone drug plan or a Medicare Advantage plan that includes drug coverage. Your monthly plan premium doesn't count toward the $2,100 — only your actual cost-sharing on covered medications does.

To appreciate how meaningful this is, remember what came before. Before 2025 there was no annual limit at all. People taking expensive specialty medications for cancer, autoimmune conditions, or other serious illnesses could pay many thousands of dollars a year, and the old "coverage gap" (the so-called donut hole) added its own confusion. The cap swept that away and replaced it with a single, predictable number.

Who benefits most

If you take only a couple of inexpensive generics, you may never come close to $2,100 — and that's fine; the cap is a safety net, not a target. The people who feel the difference are those with high-cost medications. For them, the change can mean the difference between a manageable expense and a financial crisis. If you or a family member takes specialty drugs, it's worth mapping out how the cap interacts with your specific plan's formulary. That's exactly the kind of detail we cover in a coverage review, and it connects closely to the trade-offs we discuss in our guide to Medicare Advantage vs. Original Medicare in 2026.

The Medicare Prescription Payment Plan

Pair the cap with a second, less-publicized change and you get a genuinely useful tool. The Medicare Prescription Payment Plan — sometimes called "M3P" — is a free, optional program that lets you spread your out-of-pocket drug costs across monthly payments instead of paying the full amount at the pharmacy counter.

Here's how it works, according to Medicare.gov: when you fill a covered prescription, you don't pay the pharmacy. Instead, your plan sends you a monthly bill. The amount is based on what you would have owed at the counter, plus any prior balance, divided by the number of months left in the year. Your payments can rise as the year goes on, because new drug costs get spread over fewer remaining months.

Two practical notes. First, enrollment is voluntary and you can join at any time during the year — though joining earlier gives you more months to spread costs across. Second, if you were enrolled in 2025, most plans automatically re-enroll you for 2026 unless you opt out. If cash flow is a concern, the program is worth a look; if you'd simply pay a lump sum anyway, you can skip it.

2026 premiums & deductibles

Now to the costs everyone pays. On November 14, 2025, CMS announced the 2026 figures for Original Medicare. The standard Part B premium rose to $202.90 a month, an increase of $17.90 from the $185.00 charged in 2025. The Part B annual deductible increased by $26 to $283.

On the hospital side, the Part A inpatient deductible — what you pay per benefit period before Part A covers your hospital stay — rose by $60 to $1,736 for 2026. Most people pay no premium for Part A because they earned enough work credits, but the daily coinsurance amounts also nudged up: $434 a day for days 61–90 of a hospital stay, $868 a day for lifetime reserve days, and $217 a day for days 21–100 in a skilled nursing facility, per the CMS figures summarized by the RRB.

A word of perspective: a Part B increase of roughly 10% sounds steep, but it reflects rising health-care costs and projected spending across the whole program. For most people the premium is deducted directly from their Social Security check, which is why coordinating Medicare and Social Security decisions matters — something we help clients think through as part of our Social Security planning work.

IRMAA: what higher earners pay

Not everyone pays the standard premium. If your income is above certain thresholds, you'll pay an Income-Related Monthly Adjustment Amount, or IRMAA, on top of both your Part B and Part D premiums. IRMAA uses a two-year lookback, so your 2026 surcharges are based on the modified adjusted gross income (MAGI) from your 2024 tax return.

For 2026, IRMAA kicks in once income exceeds $109,000 for a single filer or $218,000 for a married couple filing jointly. From there it climbs on a five-tier sliding scale. One quirk to know: IRMAA is a "cliff." Cross a threshold by even a single dollar and you pay the full surcharge for that tier. The table below shows the 2026 tiers.

Figures for 2026 based on 2024 MAGI. Sources: CMS and Kiplinger's 2026 IRMAA summary. The Part D surcharge is added to whatever your drug plan's premium is.

The 2026 plan landscape

Beyond the government-set figures, the private plans that deliver Part D and Medicare Advantage set their own prices each year — and for 2026, CMS describes the market as broadly stable, with premiums easing on average. According to the CMS annual release and KFF's analysis, the average premium for a stand-alone Part D drug plan is projected to fall from about $38 in 2025 to roughly $34 in 2026, while the average Medicare Advantage premium eases from $16.40 to about $14.00 a month.

Choice remains abundant. KFF reports that the average Medicare beneficiary has 32 Medicare Advantage prescription-drug plans to choose from in 2026, and nearly all beneficiaries — about 98% — can find a Medicare Advantage plan with drug coverage that charges no additional monthly premium. On the drug side, more than 56 million people are enrolled in Part D coverage overall.

Abundant choice is a double-edged sword. More options mean a better chance of finding a plan that fits you — but only if you actually compare them. A "$0 premium" plan is not automatically a good deal; what matters is how a plan covers your drugs, whether your doctors are in network, and what the copays and deductibles look like for the care you use. That's the heart of the annual review.

Key dates you can't miss

Two enrollment windows drive most of the decisions for people already on Medicare, and they do very different things.

Annual Enrollment Period: October 15 – December 7

This is the big one. During Medicare's Annual Enrollment Period (AEP), you can join, switch, or drop a Medicare Advantage plan or a Part D drug plan. You can move from Original Medicare to Medicare Advantage or back the other way. Any change you make takes effect January 1. This is the window where an annual review turns into real action.

Medicare Advantage Open Enrollment: January 1 – March 31

If you're already in a Medicare Advantage plan on January 1, you get one more chance to change your mind. During the Medicare Advantage Open Enrollment Period, you can switch to a different Medicare Advantage plan once, or drop your plan and return to Original Medicare (and pick up a Part D plan). It's a safety valve, not a shopping season — you can only use it if you started the year in Medicare Advantage.

Your AEP game plan

Here's the truth we tell every client: the single most valuable Medicare habit is a yearly review. Plans are not static. Each fall, carriers can change premiums, deductibles, drug formularies, pharmacy networks, provider networks, and extra benefits like dental or over-the-counter allowances. The plan that was perfect for you in 2025 may quietly become a poor fit for 2026 — not because you changed, but because the plan did.

Use this simple checklist during the October 15 – December 7 window:

1. Read your plan's Annual Notice of Change (ANOC). It arrives in the fall and spells out exactly what's different next year. Flag any change to your premium, deductible, or drug tiers.
2. List your medications. Write down every prescription, the dose, and how often you take it. Then check that each one is still on your plan's 2026 formulary at a copay you can live with.
3. Confirm your doctors and pharmacy are in network. Networks change yearly; a favorite specialist can drop off without warning.
4. Compare total annual cost, not just premium. Add up premiums, deductibles, and expected copays for the care you actually use. A "$0 premium" plan can cost more overall.
5. Weigh the structural choice. Original Medicare with a Supplement versus Medicare Advantage is a genuine fork in the road — see our 2026 comparison to think it through.
6. Ask for help if it's murky. You can compare plans yourself at Medicare.gov, or sit down with a licensed advisor who does this all day.

If you'd rather not do this alone, that's exactly what we're here for. Our simple, no-pressure process starts by understanding your medications, doctors, and budget — then we compare the plans available to you and explain the trade-offs in plain English. We don't offer every plan in your area, and we'll always tell you to check Medicare.gov or call 1-800-MEDICARE for the full universe of options. You can learn more about how we approach coverage on our Medicare services page.

Frequently asked questions

Written by

Keith McLiverty

Keith is the founder and COO of TSM Life & Health, with more than 30 years in finance, taxes, medical insurance, and retirement planning. He believes in educating first and planning second, helping Connecticut families make confident, unhurried decisions about Medicare, Social Security, and protecting what they've built. This article is general education, not individualized advice.

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