Millions of older Americans could face higher Medicare Part D premiums in 2027 after the federal government ends a temporary program that has been holding down the monthly price of prescription drug plans.
The program will remain in place through December 31, 2026. No one is losing Part D coverage immediately, and current premiums will not change in the middle of the year. The impact will appear when insurers release their prices for 2027.
Administration estimates indicate that about 45 percent of people with stand-alone Part D plans could pay between $11 and $20 more each month. Another 30 percent could see an increase of less than $10, while about 25 percent may receive a lower premium or no increase.
Final prices will vary by insurer, plan and location.
What Medicare Is Ending After 2026?
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The change involves the Part D Premium Stabilization Demonstration, a temporary program introduced in 2025 after the prescription drug benefit received a major redesign.
Medicare paid additional money to participating insurers to reduce monthly premiums and limit sharp annual increases. The support was aimed mainly at stand-alone prescription drug plans used by people who have Original Medicare.
In 2025, the program reduced the basic premium calculation by $15 per month and limited annual plan premium increases to $35. The support was reduced in 2026 to $10 per month, while the permitted annual increase rose to $50.
The official Medicare announcement for 2027 confirms that the demonstration will end after the 2026 plan year. Federal officials said insurers now have enough experience with the redesigned benefit to calculate prices without the additional support.
| Medicare Part D change | 2026 | 2027 |
|---|---|---|
| Premium stabilization program | Still operating | Ends |
| Extra federal premium reduction | $10 per month for participating plans | Removed |
| Limit created by the demonstration | $50 annual premium increase limit | Removed |
| National base beneficiary premium | $38.99 | $41.33 |
| Final plan prices | Already active | Released in fall 2026 |
How Much Could Medicare Part D Premiums Rise?
About 25 million people are enrolled in stand-alone Medicare Part D plans. The administration provided the following estimate for 2027:
- About 25 percent could pay the same premium or less.
- About 30 percent could pay less than $10 more each month.
- About 45 percent could face increases largely between $11 and $20 per month.
An increase of $11 per month would add $132 to annual costs. A $20 monthly increase would add $240 over the year.
Those numbers are estimates, not a fixed national increase. Medicare Part D plans set different premiums in different states, and the actual price depends on the bid submitted by each insurer.
The national base beneficiary premium will rise from $38.99 in 2026 to $41.33 in 2027. That does not mean every member will pay $41.33. The base figure is used in a federal calculation, while actual premiums can be considerably higher or lower.
Why Premiums Are Under Pressure?
The premium stabilization program distributed an estimated $9.8 billion over two years, including $6.2 billion in 2025 and $3.6 billion in 2026.
The Trump administration argues that the additional payments gave insurers less reason to control premium increases because the federal government covered part of the cost. Officials say affordable plans will remain available, particularly for people willing to change insurers.
Insurers face several genuine cost pressures. The Inflation Reduction Act reduced the amount that members pay for expensive prescriptions but shifted a larger share of those costs to insurance plans and drug manufacturers.
Spending on specialty medicines and GLP-1 drugs has also grown. Our team at NCHStats previously explored how Ozempic and other GLP-1 drugs increased Medicare spending, placing more pressure on the program and the private companies offering coverage.
The Change Does Not End Extra Help or The Drug Spending Cap
The subsidy being removed was paid to insurance companies to stabilize plan premiums. It is not the same as Extra Help, the separate program for people with limited income and resources.
People who qualify can continue receiving assistance with premiums, deductibles and prescription costs through the Medicare Extra Help program.
The annual limit on what members pay for covered Part D prescriptions also remains. That limit is separate from the monthly premium. Ending the stabilization program does not remove the protection against unlimited out-of-pocket drug spending.
Medicare has also retained the legal limit that prevents the national base beneficiary premium from rising by more than 6 percent annually through 2029. Individual plan premiums can still move by larger amounts because each insurer uses its own drug costs, benefit design and bid.
Who Is Most Directly Affected?
The immediate concern is for people who use Original Medicare and purchase a separate Part D prescription plan. The temporary demonstration was created mainly for those stand-alone plans.
Most Medicare Advantage plans already include prescription coverage. They were not the main target of this specific subsidy, although their premiums, drug lists, pharmacy networks and other benefits can still change in 2027.
Higher stand-alone premiums could persuade some people to move into Medicare Advantage. A lower drug premium alone should not decide that choice. Medicare Advantage plans may use restricted provider networks, referral requirements and prior authorization rules that do not apply in the same way under Original Medicare.
When Members Will See Their Real 2027 Price?
Insurers will send Annual Notice of Change documents before Medicare Open Enrollment. Those notices will list the 2027 premium, deductible, covered drugs, pharmacy network and any new coverage restrictions.
Open Enrollment runs from October 15 through December 7. Coverage selected during that period begins January 1, 2027.
Members can use the official Medicare plan comparison service once the 2027 options become available. The comparison should include more than the monthly premium.
A plan charging $10 less each month can still cost more over the year if it places a regular medication on a higher tier, removes a preferred pharmacy or adds coinsurance for an expensive drug.
People should check five details before renewing:
- The total annual premium
- The deductible
- Coverage for every regular prescription
- Copayments or coinsurance at the preferred pharmacy
- Prior authorization, quantity limits and step therapy requirements
Other Medicare expenses are also increasing. Our report on the 2026 Medicare Part B deductible explains the separate costs attached to medical and outpatient care.
Retirees may also want to compare any premium increase with the expected 2027 Social Security cost-of-living adjustment. A higher monthly Part D bill could consume part of the benefit increase before it reaches a household budget.
The final effect will not be known until insurers publish their 2027 plans. What is already confirmed is that the federal cushion ends on December 31, leaving members more exposed to the full premium prices submitted by insurers.
