Medicare Part D prescription drug coverage costs changed significantly in 2026, and if you enrolled years ago without reviewing your plan, you may be paying more than you need to. The out-of-pocket cap rose slightly to $2,100 this year, the donut hole remains fully eliminated, and the average stand-alone Part D premium dropped to $34.50 per month. Here is exactly what every Medicare beneficiary needs to know about Part D costs in 2026, including who qualifies for free or near-free coverage through the Extra Help program.
To see which programs you qualify for based on your income and household size, check your eligibility at CoveredUSA in about two minutes.
What Is Medicare Part D in 2026?
Medicare Part D is the prescription drug benefit available to anyone enrolled in Original Medicare (Parts A and B) or a Medicare Advantage plan. Part D plans are offered by private insurers and approved by the Centers for Medicare and Medicaid Services (CMS). In 2026, there are two ways to get Part D coverage:
- Stand-alone Prescription Drug Plan (PDP): Pairs with Original Medicare (Parts A and B) and a Medigap supplement if you have one.
- Medicare Advantage with Drug Coverage (MA-PD): A bundled plan that includes Parts A, B, and D together.
According to Medicare.gov, you must be enrolled in Medicare Part A and/or Part B to join a Part D plan.
2026 Medicare Part D Premiums
The average monthly premium for a stand-alone Part D plan in 2026 is $34.50, down $3.81 from 2025. For Medicare Advantage plans that include drug coverage, the average Part D portion of the premium fell to $11.50 per month in 2026, a drop of $1.82 from 2025.
These are national averages. Your actual 2026 premium depends on the specific plan you chose during the Annual Enrollment Period, the drugs on your formulary, and your state. Premiums can range from close to $0 on some Medicare Advantage-PD plans to over $100 per month on certain stand-alone PDPs.
2026 Part D IRMAA: Higher-Income Surcharges
If your 2024 modified adjusted gross income (MAGI) exceeded $109,000 as a single filer or $218,000 as a joint filer, you pay an additional surcharge on top of your plan premium in 2026. This is called the Income-Related Monthly Adjustment Amount, or IRMAA. The SSA uses your 2024 tax return to calculate 2026 IRMAA liability.
2026 Medicare Part D IRMAA Surcharges -- Individual Filers
| 2024 Individual MAGI | Monthly Part D Surcharge (2026) |
|---|
| $109,000 or less | $0 |
| $109,001 to $137,000 | +$14.50 |
| $137,001 to $171,000 | +$37.50 |
| $171,001 to $205,000 | +$60.40 |
| $205,001 to $499,999 | +$83.30 |
| $500,000 or more | +$91.00 |
2026 Medicare Part D IRMAA Surcharges -- Married Filing Jointly
| 2024 Joint MAGI | Monthly Part D Surcharge (2026) |
|---|
| $218,000 or less | $0 |
| $218,001 to $274,000 | +$14.50 |
| $274,001 to $342,000 | +$37.50 |
| $342,001 to $410,000 | +$60.40 |
| $410,001 to $749,999 | +$83.30 |
| $750,000 or more | +$91.00 |
Source: IRMAA Group 2026 Bracket Data. The surcharge is paid directly to Medicare, not to your plan. Even if your employer or a third party pays your plan premium, you are personally responsible for the IRMAA surcharge.
2026 Part D Deductible
The maximum allowable Part D deductible in 2026 is $615 per year. Not every plan charges this amount -- some plans have a lower deductible, and some have no deductible at all, often with a slightly higher monthly premium to compensate.
During the deductible phase, you pay 100% of the cost of covered drugs until you reach your plan's deductible threshold. Low-income enrollees receiving Extra Help (see below) typically have no deductible.
The 2026 Out-of-Pocket Cap: $2,100
The single most important change to Medicare Part D in recent years is the out-of-pocket cap introduced by the Inflation Reduction Act. In 2026, that cap is $2,100.
Once your cumulative out-of-pocket spending on covered Part D drugs reaches $2,100 in a calendar year, you pay $0 for all covered prescription drugs for the rest of the year. This applies whether you are buying generics or expensive brand-name medications.
The 2026 cap is a modest increase from the $2,000 cap that applied in 2025 (the first year the cap was in place). Before 2025, there was no hard cap -- costs could run into tens of thousands of dollars in what was called the catastrophic coverage phase.
What Counts Toward the $2,100 Cap?
Only your own out-of-pocket spending counts toward the cap, including:
- Your deductible payments
- Copayments and coinsurance in the initial coverage phase
- Any applicable True Out-of-Pocket (TrOOP) spending your plan counts
Premiums do not count. Neither does spending on drugs not covered by your plan's formulary.
Coverage Phases Under Part D in 2026
Part D coverage no longer has the old "donut hole" coverage gap that confused millions of beneficiaries for decades. According to NCOA, the 2026 benefit structure has three phases:
| Phase | Your Cost Share (2026) |
|---|
| Deductible phase (up to $615) | 100% until deductible met |
| Initial coverage phase (after deductible, up to $2,100 OOP) | 25% coinsurance |
| Catastrophic phase (after $2,100 OOP) | $0 |
During the initial coverage phase, your plan covers 65% of costs and drug manufacturers cover 10% of brand-name drug costs. Once you hit $2,100 out-of-pocket, you enter catastrophic coverage where Medicare picks up 20%, your plan covers 60%, and manufacturers cover 20% on brands -- but you pay nothing.
The Medicare Donut Hole in 2026: It Is Gone
The Medicare Part D coverage gap, commonly called the donut hole, no longer exists. The Inflation Reduction Act phased it out, with the final elimination effective in 2025. In prior years, beneficiaries would fall into a gap between the initial coverage limit and catastrophic coverage where they paid dramatically higher percentages of drug costs.
In 2026, there is no coverage gap to worry about. You pay 25% from the point your deductible is met all the way until you hit the $2,100 out-of-pocket cap. This is a significant simplification and a major financial protection for people on expensive medications.
Medicare Extra Help (Low-Income Subsidy) 2026
The Extra Help program, also called the Low-Income Subsidy (LIS), is a federal program that reduces or eliminates Part D costs for Medicare beneficiaries with limited income and resources. In 2026, Extra Help covers premiums, eliminates the deductible, and caps copayments dramatically.
Extra Help Income Limits 2026
To qualify for Extra Help in 2026, your annual income must be at or below:
| Household | 2026 Income Limit |
|---|
| Individual | $23,475 per year |
| Married couple (living together) | $31,725 per year |
Source: Medicare Extra Help 2026 via DisabilityExchange.org.
Extra Help Resource Limits 2026
In addition to income, your countable resources (savings, investments -- not your home or car) must be at or below:
| Filing Status | 2026 Resource Limit |
|---|
| Individual | $18,090 |
| Married couple | $36,100 |
Each person is allowed to set aside an additional $1,500 for burial expenses that does not count against the resource limit.
What Extra Help Pays For in 2026
If you qualify, Extra Help in 2026 provides:
- Monthly premium reduced to $0 (on benchmark plans)
- No annual deductible
- Copayments capped at $5.10 for generics and $12.65 for brand-name drugs in 2026
- After reaching $2,100 in out-of-pocket spending, all covered drugs cost $0 for the rest of the year
The partial Extra Help tier that existed before 2024 (for people between 135% and 150% of the Federal Poverty Level) was eliminated by the Inflation Reduction Act. Everyone who qualifies now receives the full Extra Help benefit.
Who Gets Automatic Extra Help Enrollment?
You are automatically enrolled in Extra Help if you qualify for any of the following:
- Full Medicaid coverage
- Medicare Savings Program (QMB, SLMB, or QI)
- Supplemental Security Income (SSI)
If you are not auto-enrolled but think you may qualify, you need to apply separately (see "How to Apply" below).
Extra Help and Medicare Savings Programs: Double Benefits
Medicare beneficiaries with low incomes may qualify for both Extra Help on Part D AND a Medicare Savings Program (MSP) that helps cover Part B premiums and cost-sharing. The four MSP categories -- QMB, SLMB, QI, and QDWI -- have income limits at or below 200% of the Federal Poverty Level.
If you qualify for a Medicare Savings Program, you are automatically enrolled in Extra Help as well. Check your eligibility at CoveredUSA to see whether you qualify for both programs.
How to Apply for Medicare Part D in 2026
Key Enrollment Windows
- Initial Enrollment Period (IEP): A 7-month window starting 3 months before your 65th birthday month, including your birthday month, and ending 3 months after. This is when most people first enroll.
- Annual Enrollment Period (AEP): October 15 to December 7 each year. Changes made here take effect January 1, 2026. For 2027 plan changes, the AEP runs October 15 to December 7, 2026.
- Medicare Advantage Open Enrollment Period (MA OEP): January 1 to March 31, 2026, for those already in a Medicare Advantage plan who want to switch.
- Special Enrollment Periods (SEP): Available if you lose other creditable drug coverage, move out of your plan's service area, or qualify for Extra Help.
Step-by-Step: How to Enroll in Medicare Part D
- Confirm Medicare eligibility. You must be enrolled in Medicare Part A and/or Part B before you can join a Part D plan.
- Compare plans at Medicare Plan Finder. Go to Medicare.gov/plan-compare and enter your ZIP code and the medications you take. The tool shows 2026 premiums, deductibles, and estimated annual drug costs for every plan in your area.
- Check your drugs are on the formulary. Every Part D plan has a formulary (list of covered drugs). Make sure your prescriptions are covered -- and at what tier -- before selecting a plan.
- Apply online, by phone, or through a licensed agent. You can enroll directly at Medicare.gov, call 1-800-MEDICARE (1-800-633-4227), or work with a licensed insurance agent at no cost to you.
- Apply for Extra Help separately if needed. Apply at SSA.gov/extrahelp or call the Social Security Administration at 1-800-772-1213.
- Verify your enrollment confirmation. After enrolling, you will receive a confirmation and a new insurance card. Keep this card -- you will need it at the pharmacy.
Documents You May Need
- Medicare card (Part A and/or Part B number)
- Current prescription list (drug name, dose, frequency)
- Most recent tax return or Social Security award letter (for Extra Help income verification)
- Bank account information (if setting up automatic premium payments)
Common Reasons Part D Applications Get Denied
- Not yet enrolled in Medicare Part A or Part B
- Applying outside an eligible enrollment period without a qualifying SEP
- Income or resources above Extra Help limits
- Already enrolled in another creditable drug coverage plan (employer plan, TRICARE, VA)
- Missing or incorrect information on the Extra Help application
2026 Part D Late Enrollment Penalty
If you do not enroll in Part D when first eligible and you go more than 63 consecutive days without other creditable drug coverage, you will owe a late enrollment penalty. The penalty adds 1% of the national base beneficiary premium per month you went without coverage. In 2026, the national base beneficiary premium used to calculate the penalty is $38.99 per month, according to CMS. The penalty is permanent and added to your monthly Part D premium for as long as you have coverage.
Example: 24 months without coverage at 1% per month = 24% penalty. At $38.99 base, that adds roughly $9.40 per month to your premium every month going forward.
How to Get Help Choosing a Part D Plan
Choosing the right Part D plan requires comparing your specific drugs, doses, and preferred pharmacies against each plan's formulary and cost structure. Free help is available from:
- SHIP (State Health Insurance Assistance Program): Free, unbiased Medicare counseling from trained counselors in every state. Find your local SHIP at shiphelp.org.
- Medicare.gov Plan Compare tool: Compare real 2026 costs at Medicare.gov.
- CoveredUSA Screener: Not sure which Medicare programs you qualify for, including Extra Help and Medicare Savings Programs? Check your eligibility at CoveredUSA -- it takes 2 minutes and is free.
Check your eligibility now at CoveredUSA -- it takes 2 minutes.
Frequently Asked Questions
What is the Medicare Part D out-of-pocket maximum in 2026?
The 2026 Medicare Part D out-of-pocket cap is $2,100. Once your yearly out-of-pocket spending on covered Part D drugs reaches $2,100, you pay $0 for covered prescriptions for the rest of the calendar year. This cap was $2,000 in 2025.
Is the Medicare donut hole still in effect in 2026?
No. The Medicare Part D coverage gap (donut hole) was fully eliminated in 2025. In 2026, you pay 25% coinsurance from the time your deductible is met until you reach $2,100 in out-of-pocket spending, then you pay nothing. There is no gap where your cost percentage jumps.
What is the average Medicare Part D premium in 2026?
The average stand-alone Part D premium in 2026 is $34.50 per month, according to CMS projections. For Medicare Advantage plans with drug coverage, the average Part D portion of the premium is $11.50 per month.
Who qualifies for Medicare Extra Help in 2026?
In 2026, you may qualify for Extra Help if your annual income is at or below $23,475 (individual) or $31,725 (couple), and your countable resources are at or below $18,090 (individual) or $36,100 (couple). If you receive full Medicaid, SSI, or are in a Medicare Savings Program, you are automatically enrolled.
What is the 2026 Medicare Part D deductible?
The maximum Part D deductible in 2026 is $615 per year. Some plans charge a lower deductible or none at all. If you receive Extra Help, your deductible is $0.
Does Medicare Part D cover insulin in 2026?
Yes. Under the Inflation Reduction Act, Medicare Part D plans are required to cover insulin at no more than $35 per month per insulin product, with no deductible applied to insulin. This $35 monthly cap applies regardless of whether you have Extra Help.
What is the 2026 Part D late enrollment penalty?
The penalty is 1% of the 2026 national base beneficiary premium ($38.99) per month you went without creditable coverage after becoming eligible. The penalty is permanent and added to your monthly premium for life.
How do I appeal a 2026 IRMAA surcharge?
If your income dropped significantly since your 2024 tax return (due to retirement, divorce, death of a spouse, or other life-changing event), you can request an IRMAA reduction using Form SSA-44 at SSA.gov. File the form with supporting documentation showing the income change.
