How the 2026 Medicare Part D $2,100 Out-of-Pocket Cap Works

Starting in 2025, Medicare drug plans got a hard ceiling on what you pay out of pocket. For 2026, that cap is $2,100. Once you hit it, you pay $0 for covered drugs for the rest of the year.

I’m Michael Cubell, a licensed independent agent with Triangle Life & Health (licensed since 2013, NPN 16899969). I help people in 15 states sort through Medicare every day. Here’s the plain-English version.

What Is the Part D Out-of-Pocket Cap?

The out-of-pocket cap (CMS calls it the “out-of-pocket threshold”) is the most you’ll pay in a calendar year for drugs your Part D plan covers. It applies to every Medicare drug plan, both stand-alone Part D plans and Medicare Advantage plans that include drug coverage. In 2026, the cap is $2,100.

Before 2025, there was no real ceiling. People on expensive medications could pay thousands of dollars a year, and the old “donut hole” made costs hard to predict. That’s gone now.

How the 2026 Part D Phases Work

Phase	What You Pay (2026)
1. Deductible	Full cost of covered drugs until you meet your plan’s deductible, which is up to $615 (many plans charge less or $0)
2. Initial coverage	Your plan’s copays or coinsurance until your out-of-pocket total reaches $2,100
3. Catastrophic coverage	$0 for covered drugs for the rest of the calendar year

Insulin is capped at $35 per month for each covered insulin, and the deductible doesn’t apply to it.

What Counts Toward the $2,100 Cap (and What Doesn’t)

Counts toward the cap ✅	Does NOT count ❌
Your deductible payments for covered drugs	Your monthly Part D premium
Copays and coinsurance for covered drugs	Drugs not on your plan’s formulary (unless you win an exception)
Payments made for you by Extra Help and certain other programs	Drugs bought outside the plan (for example, with a discount card instead of your plan)

That last one catches people. If you pay cash with a discount card, that purchase usually won’t count toward your $2,100. Sometimes the discount card is still the better deal, but it’s worth running the numbers.

Spreading Costs Out: The Medicare Prescription Payment Plan

Hitting $2,100 in January can be a shock to the budget. The Medicare Prescription Payment Plan is a free option that lets you pay your drug costs in monthly installments across the year instead of all at the pharmacy counter. There’s no interest and no fee. If you’re already in it and stay in the same plan, it renews automatically for 2026. People who get Extra Help usually won’t benefit from it.

What We Already Know About 2027

Part D item	2026	2027 (CMS-confirmed)
Out-of-pocket cap	$2,100	$2,400
Maximum deductible	$615	$700
National base beneficiary premium	$38.99	$41.33

The 2027 numbers apply to plans you pick during this fall’s Annual Enrollment Period (October 15 – December 7). Plan premiums, formularies, and pharmacy networks change every year too, so it pays to compare. Here’s my guide on how to choose a Part D plan for your medications.

Frequently Asked Questions

What is the Medicare Part D out-of-pocket maximum for 2026?

In 2026, the most you’ll pay out of pocket for covered Part D drugs is $2,100 for the year. After that, you pay $0 for covered drugs through December 31. CMS has confirmed the cap will be $2,400 in 2027.

Does my Part D premium count toward the $2,100 cap?

No. Only what you pay for covered drugs counts toward the cap: your deductible, copays, and coinsurance. Monthly premiums don’t count.

Does the $2,100 cap apply to Medicare Advantage plans?

Yes. The cap applies to all Medicare drug coverage, both stand-alone Part D plans and Medicare Advantage plans that include drug coverage.

Does the cap reset every year?

Yes. The out-of-pocket cap and the deductible reset on January 1 each year.

What is the Part D deductible in 2026?

Plans can charge a deductible of up to $615 in 2026. Some plans charge less or have no deductible. The maximum rises to $700 in 2027.

Questions? Let’s Talk It Through

Not sure whether your current drug plan is still the right fit for 2027? I’ll run your prescriptions through the plans in your area during AEP. Call me at (919) 944-8443 or schedule a free consultation. No pressure, just straight answers.

📞 Call (919) 944-8443