Starting in 2026, once you spend $2,100 on covered prescription drugs, your Part D plan pays 100% for the rest of the year. This is the biggest change to Medicare drug coverage in decades.
Want to see how this affects your specific medications? Book a free Part D review with a licensed agent.
What Changed in 2026?
Before this change, Medicare Part D had no true cap on out-of-pocket drug spending — beneficiaries in the old “catastrophic coverage” phase still paid a percentage of their drug costs. Under the redesigned Part D benefit, phased in starting 2024 and fully in effect for 2026, there is now a hard annual limit: $2,100. Once you hit that amount in covered drug costs for the year, your plan covers 100% of your covered prescriptions for the rest of the calendar year.
How the $2,100 Cap Works
Part D coverage in 2026 still has phases, but they now lead to a firm stop:
- Deductible phase — you pay out of pocket up to your plan’s deductible (some plans have $0 deductibles)
- Initial coverage phase — you and your plan share the cost of covered drugs
- Cap reached — once your total out-of-pocket spending on covered drugs hits $2,100, your plan pays 100% of covered drug costs for the remainder of the year
Medicare also allows you to spread that $2,100 out evenly across the year through the Medicare Prescription Payment Plan, rather than paying it all upfront, if that helps your budget.
What This Means for Your Drug Costs
If you take expensive medications — particularly specialty drugs — this cap can mean thousands of dollars in savings compared to prior years, when there was no hard ceiling. If your annual drug costs are modest, the cap may not change much for you, but it’s still worth understanding since a new prescription or dosage change could push your spending toward that limit faster than expected.
Should You Switch Part D Plans for 2026?
The out-of-pocket cap is the same $2,100 across all standalone Part D and Medicare Advantage drug plans — it’s a program-wide rule, not something that varies by carrier. What does vary is how quickly you reach that cap: your plan’s deductible, cost-sharing tiers, and whether your specific drugs are on the formulary at a lower tier all affect how much you pay before hitting the cap. That’s exactly what to compare during AEP (October 15 – December 7) if you’re considering a change for 2027, and it’s also worth checking when you’re first enrolling in Part D so you don’t face a late enrollment penalty on top of your drug costs.
How to Compare Part D Plans
- List every medication you currently take, including dosage
- Check each plan’s formulary for your specific drugs and their cost tier
- Compare deductibles and initial-phase cost-sharing, since the $2,100 cap is the same everywhere
- Confirm your preferred pharmacy is in-network for the lowest cost-sharing
- Talk to a licensed agent to walk through the math for your specific medication list
Want a personalized comparison? Book a free Part D plan review, or review our full Part D Guide and free Medicare resources for more.
What is the Medicare Part D out-of-pocket cap for 2026?
The 2026 Part D out-of-pocket cap is $2,100. Once you reach that amount in covered drug costs for the year, your Part D plan pays 100% of covered prescriptions for the rest of the year.
Does the $2,100 cap apply to Medicare Advantage plans with drug coverage?
Yes. The cap applies to Part D coverage generally, whether it’s a standalone Part D plan or drug coverage bundled into a Medicare Advantage (MAPD) plan.
Can I spread out my Part D costs instead of paying them all at once?
Yes. The Medicare Prescription Payment Plan lets you spread your yearly out-of-pocket drug costs into monthly payments instead of paying them as they come due at the pharmacy.
Will switching Part D plans reset how close I am to the $2,100 cap?
Generally, your out-of-pocket spending toward the cap resets each January 1 regardless of whether you keep the same plan or switch during AEP — the cap is a calendar-year limit, not tied to a specific plan.
Informational purposes only. This article is for general education and reflects 2026 Medicare figures; it is not insurance, legal, or financial advice. Kayla Price is a licensed insurance agent (NPN 18530055) with Price Services Group, LLC, an independent agency not connected with or endorsed by the U.S. government or the federal Medicare program. We do not offer every plan available in your area. Please contact Medicare.gov or 1-800-MEDICARE (1-800-633-4227) for a complete view of all your options.