Want help comparing 2027 Medicare plans?
A licensed agent from Trusted American Insurance Agency can check your doctors, prescriptions and budget against plans in your ZIP code, at no cost to you.
Get free plan helpWe do not offer every plan available in your area. Currently we represent 305 organizations which offer 6,225 products. Please contact Medicare.gov, 1-800-MEDICARE, or your local State Health Insurance Program (SHIP) to get information on all of your options. SeniorAffair is not affiliated with or endorsed by the U.S. government or the federal Medicare program.
What This Article Covers
The New $700 Deductible
In 2027, the standard Part D deductible — the amount you pay out of pocket before your plan starts sharing drug costs — rises to $700, up from $615 in 2026. This is the maximum a plan is allowed to charge; some Part D plans offer a lower deductible or no deductible at all as a way to compete for enrollees, so it’s worth comparing plans rather than assuming you’ll pay the full $700. The deductible resets every January 1, regardless of how much you spent the prior year.The $2,400 Out-of-Pocket Cap
This is the more consequential number for anyone on higher-cost medications. Once your true out-of-pocket spending on covered drugs reaches $2,400 in 2027 (up from $2,100 in 2026), you pay nothing further for covered medications for the rest of the calendar year. This cap was introduced as part of the Inflation Reduction Act’s redesign of Part D, replacing the old system’s confusing “coverage gap” or “donut hole” phase, where costs used to spike unpredictably partway through the year. The new structure is simpler: deductible, then a phase where you pay a percentage of costs, then the cap—and once you hit it, you’re done paying for the year.Medicare also offers a Prescription Payment Plan option, letting you spread your out-of-pocket drug costs into monthly installments across the year rather than paying large amounts upfront early in the year—worth asking your plan about if you expect to hit the cap.| Part D cost element | 2026 | 2027 |
|---|---|---|
| Annual deductible (maximum) | $615 | $700 |
| Out-of-pocket cap on covered drugs | $2,100 | $2,400 |
| Coinsurance after deductible (standard plan) | 25% | 25% |
| Monthly insulin cap | $35 | $35 (unchanged) |
| Recommended adult vaccines | $0 | $0 (unchanged) |
| Base beneficiary premium (used for late penalty) | $38.99 | $41.33 |
| Average standalone Part D plan premium (CMS projection) | $35.09 | $36.00 |
| Average drug premium inside Medicare Advantage (after rebates) | $11.32 | $7.00 |
| Drugs with negotiated Medicare prices | 10 | 25 (15 added Jan. 1) |
Sources: CMS CY 2027 Rate Announcement; CMS July 28, 2026 Part D bid notice; CMS September 28, 2026 press release on 2027 Medicare Advantage and Part D. Plan-specific premiums vary by ZIP code.
Medicare Questionnaire
Click here to complete a short survey, and we will contact you directly!Insulin Stays Capped at $35 a Month
One piece of good news that isn’t changing: the $35 monthly cap on covered insulin products remains in place for 2027, and it applies regardless of what phase of the Part D benefit you’re in—even during the deductible phase, when you’d otherwise be paying full cost for other medications. If you manage diabetes with insulin, this cap alone can represent significant, predictable savings compared to pre-reform pricing.More Drugs Get Negotiated Prices in 2027
The Medicare Drug Price Negotiation Program, also created under the Inflation Reduction Act, allows Medicare to negotiate directly with manufacturers on prices for select high-spending drugs. Ten drugs had their negotiated, lower prices take effect for beneficiaries in 2026. For 2027, 15 additional drugs are set to see meaningful price reductions under negotiated agreements. Not every high-cost drug is included in this program — notably, GLP-1 medications have only recently begun entering the negotiation pipeline — so it’s worth checking whether your specific medications are affected rather than assuming broad price drops across the board.What’s Happening to Part D Premiums in 2027
CMS released the 2027 plan numbers on September 28, 2026. The headline is stability, but the averages hide real changes for some people.
- Standalone drug plans: the average premium is projected to rise less than $1, from $35.09 to $36 a month.
- Drug coverage inside Medicare Advantage: the average drug portion of the premium falls from $11.32 to $7 a month after plan rebates.
- Fewer standalone plans: KFF counts 9 standalone drug plans for the average beneficiary in 2027, down from 11.
- Stabilization program ends: the Part D Premium Stabilization Demonstration that held down some 2026 premiums is not continuing in 2027, so some people who keep their current plan will see a larger jump than the average.
The takeaway: your plan’s premium can change far more than the national average. Check the Annual Notice of Change from your plan, then compare total yearly cost (premium plus drug costs) in Medicare Plan Finder before December 7.
What to Do Before Open Enrollment
Because your plan’s specific formulary, premium, and pharmacy network can all change year to year even while the overall Part D structure stays similar, the most important action item is a familiar one: don’t let your Part D plan auto-renew without checking it first. When your Annual Notice of Change arrives in September, confirm your current medications are still covered at a reasonable tier, verify your pharmacy is still in network, and run your medication list through Medicare’s Plan Finder tool to compare your total annual cost—not just the premium—against other available plans. Our full walkthrough of this process is at 2027 Open Enrollment Checklist: What to Do Before December 7.A Real-World Example of the New Structure
To see how the 2027 changes actually play out, consider someone managing a chronic condition with an annual drug spend of $3,000 at retail prices. Under the 2027 structure, they’d first pay up to $700 out of pocket during the deductible phase (or less, depending on their specific plan’s deductible). After that, they’d pay a percentage of costs during the next phase until their total out-of-pocket spending reaches $2,400—at which point, for the rest of the calendar year, their covered medications are free. In practical terms, this means their maximum possible drug spending for the year is capped at $2,400, regardless of how expensive their medications are at retail—a dramatic improvement over the pre-reform system, where high-cost medications could result in thousands of dollars in coinsurance even after passing through the old “donut hole.”This predictability is precisely why the Prescription Payment Plan option matters for some enrollees: rather than potentially paying a large share of that $2,400 cap in the first few months of the year (since many chronic medications are taken and billed monthly, and some specialty drugs are billed with large costs upfront), the payment plan lets you convert that $2,400 into predictable monthly installments spread across the year, which can meaningfully ease cash-flow pressure for retirees on fixed incomes.It’s worth noting that the Prescription Payment Plan doesn’t reduce what you owe—it only spreads the timing of when you pay it—so it’s most useful for people who would otherwise face a cash-flow crunch early in the year, rather than a way to lower total annual drug costs. Enrollment in the payment plan is optional and must generally be requested through your Part D plan, either during Open Enrollment or when you first anticipate high drug costs during the year.Compare 2027 Part D Plans for Your Medications
See which Part D and Medicare Advantage plans cover your specific medications at the lowest total annual cost in your area.Compare 2027 Medicare Plans NowFrequently Asked Questions
What is the Medicare Part D deductible for 2027?
The maximum Part D deductible in 2027 is $700, up from $615 in 2026. Plans can charge less or no deductible, and insulin and recommended vaccines are exempt from the deductible.
What is the Part D out-of-pocket cap for 2027?
The cap is $2,400 in 2027, up from $2,100. Once your out-of-pocket spending on covered drugs reaches $2,400, you pay nothing more for covered drugs for the rest of the year.
What are the biggest Medicare Part D changes for 2027?
The deductible rises to $700, the out-of-pocket cap rises to $2,400, the base beneficiary premium rises to $41.33, and 15 more drugs get negotiated Medicare prices on January 1, 2027. The Part D Premium Stabilization Demonstration also ends.
Will my Part D premium go up in 2027?
It depends on your plan. CMS projects the average standalone premium will rise less than $1 to $36 a month, but some plans are raising premiums much more. Your Annual Notice of Change lists your plan’s 2027 premium.
Is Medicare Part D ending in 2027?
No. Part D continues in 2027 with a higher deductible and out-of-pocket cap. There are fewer standalone drug plans in many areas, so comparing options matters more this year.
What does Medicare Part D cover in 2027?
Each plan covers drugs on its formulary, which must include drugs in protected classes and most commonly prescribed medications. Insulin is capped at $35 a month and recommended adult vaccines cost $0. Check that every drug you take is on the 2027 formulary.
Can I spread my Part D costs over the year?
Yes. The Medicare Prescription Payment Plan lets you pay out-of-pocket drug costs in monthly amounts instead of all at the pharmacy. It does not lower what you owe. Ask your plan to enroll.
When can I change my Part D plan for 2027?
During Medicare Open Enrollment, October 15 to December 7, 2026. Changes take effect January 1, 2027.
Medicare Questionnaire
Click here to complete a short survey, and we will contact you directly!Figures confirmed against CMS sources as of November 3, 2026.
Final 2027 plan-specific premiums and formularies are released during Open Enrollment; always confirm current details at Medicare.gov.
Senior Affair is not affiliated with the federal Medicare program.
Part of our Medicare Guide. Costs, enrollment deadlines, Medicare Advantage vs. Medigap, Part D and what Medicare covers, all in one place. See the full guide →
Get guides like this in your inbox
Medicare changes, money tips, health guides and deals for adults 55+. Free, from Senior Affair Magazine.
Free. Unsubscribe anytime. Privacy policy.
