2027 Medicare Costs: What’s Changing and What to Do Now
Some 2027 Medicare Part D costs are already confirmed by CMS, while Part B premium and deductible figures are still pending. Actuarial estimates project a monthly Part B premium of ~$221.00 and an annual deductible of ~$310.00. The most important step right now? Watch your mailbox for your Annual Notice of Change.
Medicare costs rarely stay the same from one year to the next — and 2027 is shaping up to be no exception. Rising demand for outpatient care, combined with the growing use of high-cost treatments like Alzheimer’s therapies and GLP-1 medications, is shifting the financial picture for Medicare beneficiaries. Some of those changes are already confirmed. Others are projections based on actuarial data through mid-2026.
This blog breaks it all down. By the end, you’ll know which 2027 figures are locked in, which are still estimates, and what steps to take before the Annual Election Period (AEP) opens on October 15.
What 2027 Medicare Part D Costs Are Already Confirmed?
Good news on the Part D front. CMS has officially confirmed several key figures for 2027 prescription drug plans in its 2027 Rate Announcement (page 95):
- Maximum deductible: $700
- Annual out-of-pocket cap: $2,400
- Base beneficiary premium: $41.33 (used by CMS to calculate late enrollment penalties)
The out-of-pocket cap is a meaningful milestone for beneficiaries. Thanks to the Inflation Reduction Act, Medicare Part D enrollees now have a firm ceiling on what they’ll spend on covered drugs each year — a protection that simply didn’t exist a few years ago.
What Are the Projected 2027 Medicare Part B Costs?
The official Part B premium and deductible figures have not yet been released by CMS. Based on actuarial estimates using data through mid-2026, here’s what beneficiaries should be prepared for:
- Projected monthly Part B premium: ~$221.00 (an estimated increase of roughly $18.10/month over 2026)
- Projected annual Part B deductible: ~$310.00 (an estimated increase of roughly $27.00 over 2026)
These are projections, not final numbers. CMS typically confirms the official figures in the fall, ahead of open enrollment. Once released, you’ll have everything you need to make a fully informed decision.
Why Are Part B Costs Rising in 2027?
Federal law requires that the standard Part B premium cover 25% of the program’s projected spending each year. As more beneficiaries seek outpatient care and newer high-cost treatments enter mainstream use, those projected costs rise — and premiums follow.
This isn’t a one-year anomaly. It reflects a broader, ongoing trend in healthcare spending that Medicare planners have been tracking for years.
Why Your Annual Notice of Change Deserves Your Full Attention
Every fall, Medicare Advantage and Part D plan members receive an Annual Notice of Change (ANOC) — typically mailed in late September or early October. Most people glance at it and set it aside. That’s a mistake worth avoiding.
Your ANOC is a plan-specific document that outlines exactly what’s changing for your coverage in the coming year, including:
- Premium and cost-sharing adjustments
- Network changes (which doctors and hospitals are in-network)
- Formulary updates (which drugs are covered and at what cost tier)
A plan that worked well for you in 2026 may look quite different in 2027. New cost structures, dropped providers, or shifts in drug coverage can add up quickly — and you won’t know unless you read it carefully.
What Steps Should You Take Before the 2027 Annual Election Period?
Open enrollment is not the time to scramble. The Annual Election Period (AEP) runs from October 15 to December 7 each year, giving you a window to review and switch plans if needed. The key is to prepare before that window opens.
Here are the questions worth asking yourself now:
- Are your premiums, deductibles, or copays changing? Even a modest monthly increase adds up to hundreds of dollars over the course of a year.
- Is your plan adjusting its provider network? If your doctor or specialist is no longer in-network, your costs could rise unexpectedly.
- Are any of your current medications affected by formulary changes? A drug moving to a higher cost tier — or off the formulary entirely — can significantly impact what you pay out of pocket.
If any answer is “yes” or “I’m not sure,” it’s worth taking a closer look at your options. And you don’t have to figure it out alone. Working with a licensed Medicare broker costs you nothing — brokers are compensated by insurance carriers, not by you — and they can help you compare plans and identify savings opportunities that aren’t always easy to spot on your own.
The Bottom Line: Stay Ahead of 2027 Medicare Changes
A projected Part B premium increase of ~$18.10 per month may not sound like much in isolation. But multiply that over 12 months, add potential deductible increases, and factor in any plan-specific changes revealed in your ANOC — and the total impact becomes something worth planning for.
The confirmed Part D figures give you a solid foundation. The projected Part B numbers offer a reasonable baseline. What ties it all together is the action you take between now and December 7.
Watch for your ANOC — and when it arrives, read it carefully. Ask the hard questions about your coverage before the December 7 deadline.
Have questions about your Medicare options? As an independent licensed health broker specializing in Medicare in New York, I offer personalized plan comparisons at no cost to you. Reach out today to make sure your coverage is truly working for you.
Frequently Asked Questions
What 2027 Medicare Part D costs have been officially confirmed by CMS? CMS has confirmed a maximum Part D deductible of $700, an annual out-of-pocket cap of $2,400, and a base beneficiary premium of $41.33 for 2027. These figures come directly from the CMS 2027 Rate Announcement.
What is the projected 2027 Medicare Part B premium? Based on actuarial estimates through mid-2026, the projected 2027 Part B monthly premium is approximately $221.00 — an increase of roughly $18.10 over 2026. This is not yet an official figure; CMS will confirm the final amount ahead of open enrollment.
When will the official 2027 Part B premium be announced? CMS typically releases the final Part B premium and deductible figures in the fall, before the Annual Election Period runs from October 15 to December 7.
What is an Annual Notice of Change, and why does it matter? An Annual Notice of Change (ANOC) is mailed to Medicare Advantage and Part D plan members each fall. It details what’s changing in your specific plan for the upcoming year — including costs, network coverage, and drug formularies. Reviewing it carefully helps you catch unexpected cost increases or coverage gaps before they affect you.
Does working with a Medicare broker cost anything? No. Medicare brokers are compensated by insurance carriers, not by beneficiaries. Working with a broker gives you access to personalized guidance and a broader view of your plan options — at no out-of-pocket cost to you.
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