Medicare Part D prescription drug coverage resets every calendar year, and the 2027 figures are now on the record. CMS released its preliminary Part D bid data for Contract Year 2027 on July 28, 2026, giving beneficiaries, employers, and benefits advisors an early look at how the Inflation Reduction Act redesign carries forward now that it is fully implemented. Two numbers drive most budget conversations: the 2027 out-of-pocket maximum and the premium benchmarks CMS published alongside it.
Plan-level details are still pending, so the practical question for most people is what is confirmed today versus what has to wait for the fall. Here is what the research shows, along with the dates that matter for anyone reviewing coverage for next year.
What Is Actually Changing in Medicare Part D for 2027
Three confirmed developments shape the 2027 plan year. Each one affects a different part of the coverage equation, which is why headlines about 2027 can sound more dramatic than the underlying numbers.
- The annual out-of-pocket maximum for Part D rises to $2,400 for 2027.
- The Part D subsidy program officially terminates on January 1, 2027.
- CMS finalized a Contract Year 2027 rule that includes changes intended to improve the Part D and Medicare Advantage programs and to codify existing subregulatory guidance.
What is not yet available is plan-specific pricing. CMS will release the 2027 Medicare Advantage and Part D landscape in mid-to-late September. Until that happens, any number attached to a named plan for 2027 is an estimate, not a confirmed rate.
The 2027 Part D Out-of-Pocket Maximum Is $2,400
Every year, the federal government sets a cost limit for the out-of-pocket maximum for a Medicare Part D prescription drug plan. For 2027, that limit is $2,400. The figure is an annual adjustment rather than a new policy direction. In 2026, the corresponding cap was $2,100, and 2027 continues the same structure with an updated dollar amount.
For enrollees with high prescription costs, the cap is the single most important protection in the benefit. It places a ceiling on what a member pays out of pocket for covered drugs during the plan year. For enrollees with modest drug spending, the cap rarely comes into play, and the premium and formulary matter far more.
2027 Premium Benchmarks: NAMBA and the Base Beneficiary Premium
CMS announced two key benchmark figures for 2027 on July 28, 2026. The National Average Monthly Bid Amount, or NAMBA, is $296.05. The base beneficiary premium is $41.33. Both are national averages used in Part D payment and premium calculations. Neither is the price any individual enrollee pays, and neither predicts what a specific plan will charge in Florida or anywhere else.
| 2027 Part D benchmark | Amount |
|---|---|
| Out-of-pocket maximum | $2,400 |
| National Average Monthly Bid Amount (NAMBA) | $296.05 |
| Base beneficiary premium | $41.33 |
Because these are averages, two people in the same county can see very different premium changes. The individual number depends on the plan, the region, and any subsidy the enrollee receives.
The Part D Subsidy Program Ends January 1, 2027
The Part D subsidy program officially terminates on January 1, 2027. That announcement generated a wave of alarming coverage, but the practical effect is narrower than the headlines suggest. CMS estimates most beneficiaries will see an increase of $10 or less per month, and some may see no change or even a decrease. Exact amounts are plan specific.
In other words, the end of the subsidy does not mean prescription drug coverage goes away. It means one layer of financial support that has been smoothing premium increases is no longer in place, and the cost impact lands differently depending on which plan a person is enrolled in.
What the Contract Year 2027 Final Rule Covers
CMS issued a final rule covering Contract Year 2027 and certain Contract Year 2026 policy and technical changes. According to the rule as published on April 6, 2026, it includes a number of changes that would improve the Part D and Medicare Advantage programs for contract year 2027, and it codifies existing subregulatory guidance that plans and sponsors have been operating under.
Rules at this level are technical. They shape how plans are administered and how requirements are applied. They rarely change what a member sees at the pharmacy counter on January 1, but they do affect plan design decisions that eventually show up in premiums, formularies, and network rules. Because details matter and can shift, members and employers should confirm specifics against CMS materials before acting on them.
When 2027 Plan Details Become Available
CMS will release the 2027 MA and Part D landscape in mid-to-late September 2026. That release is the first point where 2027 premiums, deductibles, formularies, and pharmacy networks for specific plans become visible. It also precedes the fall mailing season, when plans send members the materials describing next year’s changes.
Using 2026 plan data to make a 2027 decision is a common and costly mistake. A drug that sits on a preferred tier this year can move tiers next year, and a pharmacy that is in network in December may not be in network in January.
Key 2027 Medicare Dates at a Glance
| Date | What happens |
|---|---|
| July 28, 2026 | CMS releases preliminary 2027 Part D bid and benchmark figures |
| Mid-to-late September 2026 | CMS releases the 2027 MA and Part D landscape with plan-level details |
| October 15 to December 7, 2026 | Medicare Open Enrollment for 2027 coverage |
| January 1, 2027 | 2027 plan year begins and the Part D subsidy program terminates |
2027 Open Enrollment Runs October 15 Through December 7
Medicare Open Enrollment for 2027 is October 15 through December 7. During that window, you can enroll in or change your Medicare Advantage and Part D coverage for the coming year. This is the annual opportunity to compare plans, and for 2027 it carries extra weight because the subsidy expiration and the higher out-of-pocket maximum both take effect in the same plan year.
Anyone who does nothing during Open Enrollment stays in their current plan. That default is not automatically the cheapest or the most clinically appropriate choice. Reviewing the plan materials that arrive in the fall, and comparing the drug list against current prescriptions, is the step that catches surprises before January.
What These Changes Mean for Florida Employers and Retirees
For employers with Medicare-eligible employees, retirees, or a mix of both, the 2027 numbers are worth building into next year’s benefits planning conversation. The subsidy expiration affects how Part D coverage compares with employer-sponsored options, and the higher out-of-pocket maximum changes the worst-case exposure for members with expensive prescriptions.
Tampa Bay area businesses that sponsor group health coverage and also support retirees should look at both sides together rather than treating Medicare guidance as a separate task. The decision about whether a retiree stays on an employer plan or moves to an individual Medicare plan depends on premiums, formularies, and provider networks, and those variables all refresh on January 1.
Practical Steps Before January 1, 2027
- Note the fall release of the 2027 MA and Part D landscape in mid-to-late September, since that is when plan-level numbers become reliable.
- Review the materials your current plan sends for 2027, paying attention to premium changes and drug tier placement.
- List every prescription you take, including dosages, and check each one against the 2027 formulary of any plan you are considering.
- Confirm that your preferred pharmacies are still in network for 2027.
- Compare the total annual cost, not just the monthly premium, since a lower premium with higher drug costs can end up costing more.
- Use the October 15 to December 7 Open Enrollment window to make changes, and confirm final details through CMS or Medicare directly before enrolling.
The 2027 changes are real but manageable. The cap is higher, a subsidy is ending, and benchmark figures are published, yet the decision that affects a household budget most is still the plan comparison done in the fall. Starting that review with confirmed figures and current prescription lists produces a better outcome than reacting to headlines in January.
Frequently Asked Questions
How much is the Medicare Part D out-of-pocket maximum in 2027?
The out-of-pocket maximum for a Medicare Part D prescription drug plan is $2,400 in 2027. The federal government sets this cost limit each year, and the 2027 amount is an annual adjustment from the 2026 figure of $2,100. The cap places a ceiling on what an enrollee pays out of pocket for covered drugs during the plan year.
Will my Part D premium go up in 2027?
CMS estimates most beneficiaries will see an increase of $10 or less per month, and some may see no change or a decrease. Exact amounts are plan specific, so no one can predict your premium from the national benchmarks alone. The 2027 base beneficiary premium is $41.33, but that is an average rather than a plan rate.
What happens when the Part D subsidy program ends on January 1, 2027?
The Part D subsidy program officially terminates on January 1, 2027. Coverage itself does not end. The change removes a layer of financial support that has been limiting premium increases, which is why CMS expects modest increases for most enrollees. Because the impact varies by plan, checking your own plan’s 2027 materials is the reliable way to see your number.
When can I change my Medicare Part D plan for 2027?
Medicare Open Enrollment for 2027 runs October 15 through December 7, 2026. During that period you can enroll in or change your Medicare Advantage and Part D coverage. If you take no action, you remain in your current plan for 2027. Comparing drug lists and pharmacy networks before December 7 avoids surprises.
Where can I verify 2027 Part D plan details?
CMS releases the 2027 MA and Part D landscape in mid-to-late September 2026, which is when plan-level premiums, formularies, and networks become available. Confirm details through CMS or Medicare directly before enrolling, and treat any 2026 plan data as outdated for 2027 decisions. A licensed benefits advisor can help with the comparison.
