When Will 2027 Medicare Part D Plans Be Available?

Reviewed by Russell Noga, a Licensed Medicare Insurance Broker in all 50 states — Updated October 8, 2026

2027 Medicare Part D plans are available now: CMS released 2027 plan information on September 28, 2026, insurers could begin marketing on October 1, and you can enroll from October 15 to December 7, 2026, for coverage starting January 1, 2027.

Your current plan also had to send an Annual Notice of Change by September 30, 2026, showing what changes in 2027. The key numbers are a maximum deductible of $700, a $2,400 out-of-pocket cap and an average standalone premium of about $36.

See the 2027 Part D plan finder.

✔ Licensed agents in all 50 states
✔ Built on CMS 2027 data
✔ Compare plans for free

Key Highlights

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CMS released 2027 plan data September 28, 2026.

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Marketing began October 1, 2026.

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Enrollment: October 15 to December 7, 2026.

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Coverage starts January 1, 2027.

Compare plans and enroll online

The 2027 Part D Timeline

Date What Happens
July 2026 CMS releases Part D bid information, including the $41.33 base beneficiary premium
September 28, 2026 CMS releases 2027 plan landscape and premium figures
By September 30, 2026 Plans send Annual Notice of Change
October 1, 2026 Plans begin marketing 2027 coverage; 2027 plans appear on Medicare Plan Finder
October 15 to December 7, 2026 Annual Enrollment Period
January 1, 2027 New coverage starts
January 1 to March 31, 2027 Medicare Advantage Open Enrollment (MA members only)

What Is Changing for 2027

Part D Item 2026 2027
Maximum deductible $615 $700
Out-of-pocket cap $2,100 $2,400
Average standalone premium $35.09 About $36
Base beneficiary premium – $41.33
Premium Stabilization Demonstration In place Ended

Source: CMS 2027 Part D figures, July and September 2026.

Key Developments from the CMS Newsroom

Find & Compare Plans Online

Speak with a licensed insurance agent

1-877-436-2343TTY 711

Mon-Fri: 8am-9pm ET

How Part D Works in 2027

Every Part D plan moves through three stages during the year, and the stage you are in decides what you pay at the pharmacy counter.

The Three Payment Stages

1

Deductible. You pay the full negotiated price until you meet your plan’s deductible, which can be up to $700 in 2027. Many plans charge less or waive it on lower tiers.

2

Initial coverage. You pay a copay or coinsurance set by each drug’s tier, and the plan pays the rest.

3

Catastrophic coverage. Once your out-of-pocket spending reaches $2,400, covered Part D drugs cost $0 for the rest of 2027.

$700

Maximum 2027 Part D deductible, up from $615.

$2,400

2027 Part D out-of-pocket cap, up from $2,100.

About $36

Average standalone Part D premium for 2027, rising by under $1 (CMS).

$7

Expected average drug portion of a 2027 Medicare Advantage premium, lower than $11.32.

What to Do Now

How to Pick a Plan

1

Write down every prescription. Include the strength, dose and how often you fill it.

2

Enter them in Medicare Plan Finder. Add your usual pharmacies and mail order.

3

Sort by estimated total cost. Premium plus drug costs for the full year.

4

Check tiers and rules on your drugs. Prior authorization, step therapy and quantity limits.

5

Confirm your pharmacy is preferred. Preferred pharmacies usually mean lower copays.

6

Enroll by December 7, 2026. Coverage starts January 1, 2027.

Standalone Part D vs Medicare Advantage Drug Coverage

Standalone Part D Plan

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Pairs with Original Medicare, by itself or alongside Medigap

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Average about $36 a month for 2027

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Choose any plan offered in your region

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Medical care stays with Original Medicare

Medicare Advantage With Drugs

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Drug coverage built into your health plan

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Drug portion averages about $7 a month for 2027

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One card and one plan for medical and drugs

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Medical care generally comes through the plan’s network

Adjusting to Changes in Part D Payments

Late Penalty and Extra Help

Late enrollment penalty: once your Initial Enrollment Period is over, going 63 days or more in a row with no Part D or other creditable drug coverage means Medicare adds 1% of the national base beneficiary premium for every full month without it. With the 2027 base beneficiary premium at $41.33, each uncovered month adds about $0.41 a month, and that lasts as long as you have Part D.

Extra Help: people with limited income and resources may qualify for Extra Help, which lowers Part D premiums, deductibles and copays. People enrolled in a Medicare Savings Program automatically qualify. See Extra Help and prescription assistance programs.

If a Drug Is Not Covered

A drug you take might be missing from a plan’s 2027 formulary, or come with a rule such as prior authorization. Options remain:

If Your Drug Is Not Covered

1

Request a transition fill. During the first 90 days of a new plan or new plan year, plans generally have to provide a temporary supply of a drug you already take, giving you time to change drugs or ask for an exception.

2

Talk with your doctor about other options. A covered drug from the same class could work just as well for less.

3

Ask for a formulary or tiering exception. A statement from your doctor explains why you need the drug or a lower copay. The plan has to decide within set time limits.

4

Challenge a denial. When the plan turns you down, an appeal is available, with multiple levels of review.

See steps to appeal a Medicare Part D denial.

Help Paying for Drugs

Two programs can greatly lower Medicare costs for people with limited income and savings:

Medicare Savings Programs

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Run by your state Medicaid office

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May cover your Part B premium, and in some cases deductibles and coinsurance

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Income and asset limits vary by state

Extra Help (Part D)

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Run by Social Security

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Lowers Part D premiums, deductibles and copays

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Automatic eligibility for Medicare Savings Program members

If you qualify for both Medicare and full Medicaid, you may also be able to join a Dual Special Needs Plan. See help for low-income Part D beneficiaries.

Reading Your Annual Notice of Change

Check Every Line

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Your 2027 premium and deductible

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Copays for hospital stays, doctors and specialists

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The out-of-pocket maximum

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Updates to your drug list, tiers and coverage rules

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Whether your pharmacy, hospitals and doctors remain in network

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Updates to dental, vision, hearing and other extra benefits

By September 30, plans have to send the Annual Notice of Change. Because it spells out exactly how your plan changes on January 1, it is the most useful document you receive each fall.

Special Enrollment Periods

Changing plans outside the fall and early-year windows generally requires a Special Enrollment Period. Typical reasons include:

You May Qualify If

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Your plan is leaving your area or ending

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You move outside your plan’s service area

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You lose employer or union coverage

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Your Medicaid status changes, or you become eligible for Extra Help or a Medicare Savings Program

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You want to join a 5-star plan, once a year

Every Special Enrollment Period has its own deadline, so move quickly once the event occurs.

Common Part D Mistakes

Avoid These

1

Picking by premium alone. What counts is your full cost for the year.

2

Omitting drugs from your list. One missing drug can flip which plan wins.

3

Overlooking pharmacy status. Using a standard pharmacy can be far more expensive.

4

Letting your plan renew without a review. Every January, formularies and tiers change.

5

Waiting without creditable coverage. You pay the penalty for as long as you have Part D.

How 2027 Part D Premiums Are Set

Every Part D plan sends CMS a bid. From those bids, CMS sets the base beneficiary premium, $41.33 for 2027, and the national average monthly bid amount, $296.05 for 2027. Subsidies and the late penalty are calculated from the base premium, while what you actually pay depends on your plan and region. Through 2029, federal law caps growth in the base premium at 6% per year.

Standard vs Enhanced Part D Plans

At minimum, a basic plan covers Medicare’s standard benefit. Enhanced plans go further, for example with lower copays or a lower deductible, and they usually cost more each month. According to CMS, for 2027, 88% of non-low-income beneficiaries have access to a basic plan at $10.30 a month or less, and 93% have access to an enhanced plan for under $6.

Turning 65 in 2027

Turning 65 in 2027? Your Initial Enrollment Period runs for seven months: the three months leading up to your birthday month, the birthday month itself and the three months that follow. Enrolling in the first three months starts your coverage on the first day of your birthday month.

Turning 65 Checklist

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Enroll in Part A and Part B, unless you choose to delay Part B because you have qualifying employer coverage

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Choose between Original Medicare with Medigap and Medicare Advantage

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Avoid a Part D late penalty by enrolling in a drug plan or a Medicare Advantage plan with drug coverage