Some 2027 Medicare costs are now official and some are not. CMS has published the 2027 Part D numbers: the annual out-of-pocket cap on covered drugs rises to $2,400 and the standard Part D deductible rises to $700. CMS has not yet announced the 2027 Part B premium, the Part B deductible, the Part A costs or the IRMAA income brackets. It usually does that in mid-November. Until then, the best estimate comes from the 2026 Medicare Trustees Report, which puts the 2027 standard Part B premium at about $209.50 a month, up from the official $202.90 in 2026. Below is what is official, what is still an estimate, and what drives these numbers.
Where things stand (updated October 26, 2026):
- Official now: the Part D standard deductible ($700) and out-of-pocket cap ($2,400), published by CMS in its CY 2027 Rate Announcement on April 6, 2026, and the Part D base beneficiary premium ($41.33), published by CMS on July 28, 2026.
- Still pending: the Part B premium and deductible, the Part A deductible, coinsurance and premiums, and the IRMAA brackets. CMS usually announces these in mid-November. Every 2027 figure on this page for these items is an estimate, and we label it that way.
2027 Medicare Costs at a Glance
| Cost | 2026 (official) | 2027 | Status |
|---|
| Part B standard premium (monthly) | $202.90 | About $209.50 | Trustees' estimate; CMS figure due mid-November |
| Part B annual deductible | $283 | About $292 | Trustees' estimate; CMS figure due mid-November |
| Part A hospital deductible | $1,736 | About $1,788 | Trustees' estimate; CMS figure due mid-November |
| Part D standard deductible | $615 | $700 | Official (CMS, April 2026) |
| Part D out-of-pocket cap | $2,100 | $2,400 | Official (CMS, April 2026) |
| Part D base beneficiary premium (monthly) | $38.99 | $41.33 | Official (CMS, July 2026) |
The Trustees' estimate of $209.50 would be a rise of about 3.3%, the smallest percentage increase since 2021. For context, the premium jumped from $185.00 in 2025 to $202.90 in 2026, an increase of nearly 10%. So if the estimate holds, 2027 looks comparatively mild, at least for the base premium.
Part B Premium 2027: What to Expect
The standard Medicare Part B premium covers doctor visits, outpatient care, durable medical equipment, and many preventive services. Most beneficiaries pay the standard premium, which is deducted directly from their Social Security check.
For 2027, the 2026 Trustees Report estimates the standard premium at about $209.50 per month. That is an estimate, not a final figure. CMS has not announced the official number yet. It usually does so in mid-November, based on actual spending data and utilization trends. The final 2027 premium could land above or below $209.50 depending on how medical costs come in during 2026.
It is worth noting that the Trustees also project premiums rising faster in the years after 2027. The average annual increase over the following eight years is expected to be more than double the 2027 bump, driven by higher healthcare utilization, rising provider payments, and demographic shifts as more people age into Medicare.
Higher-Income Beneficiaries and IRMAA
If your income exceeds certain thresholds, you pay an Income-Related Monthly Adjustment Amount, or IRMAA, on top of the standard Part B premium. IRMAA is based on your modified adjusted gross income from two years prior, so your 2027 surcharge depends on your 2025 tax return.
CMS has not released the 2027 IRMAA brackets yet. They come out with the Part B premium in mid-November. In 2026 the surcharge starts above $109,000 for single filers and $218,000 for married couples filing jointly. The brackets rise with inflation each year. Applying the inflation formula in the law to federal consumer price data, we estimate the 2027 brackets will start at about $112,000 for single filers and $224,000 for joint filers. That is our estimate, not a CMS figure. Beneficiaries above these thresholds pay progressively higher premiums across five income tiers. The highest earners can pay several times the standard premium.
Part B Deductible 2027
The annual Part B deductible was $257 in 2025 and rose to $283 in 2026. CMS has not announced the 2027 deductible yet. The 2026 Medicare Trustees Report estimates it at $292. Treat that as an estimate, not a confirmed number. Once you meet the deductible, you typically pay 20% of the Medicare-approved amount for most covered services.
Part A Costs 2027
Part A covers inpatient hospital stays, skilled nursing facility care, hospice, and some home health care. Most people do not pay a Part A premium because they or a spouse paid Medicare taxes for at least 40 quarters (10 years) of work.
CMS has not announced the 2027 Part A figures yet. Expect them in mid-November, along with Part B. Here are the official 2026 amounts next to the 2026 Trustees Report's estimates for 2027:
| Part A cost | 2026 (official) | 2027 (Trustees' estimate) |
|---|
| Inpatient hospital deductible (per benefit period) | $1,736 | $1,788 |
| Days 61 to 90 coinsurance (per day) | $434 | $447 |
| Lifetime reserve days coinsurance (per day) | $868 | $894 |
| Skilled nursing facility days 21 to 100 (per day) | $217 | $223.50 |
| Part A premium, 30 to 39 quarters of work | $311/month | $330/month |
| Part A premium, fewer than 30 quarters | $565/month | $600/month |
The Part A hospital deductible rose $60 between 2025 and 2026 (from $1,676 to $1,736). The Trustees estimate a $52 rise for 2027, to $1,788. The official figure will depend on hospital cost trends.
Part D Prescription Drug Costs 2027
These are the 2027 numbers that are official. CMS published the 2027 Part D standard benefit parameters in its CY 2027 Rate Announcement on April 6, 2026, and the 2027 base beneficiary premium on July 28, 2026.
Two numbers matter most. First, the annual out-of-pocket cap on covered prescription drugs rises from $2,100 in 2026 to $2,400 in 2027. This cap, created by the Inflation Reduction Act, means that once your out-of-pocket drug spending hits $2,400, you pay nothing more for covered medications for the rest of the year. Second, the standard Part D deductible increases from $615 in 2026 to $700 in 2027.
| Part D cost | 2026 | 2027 (official) |
|---|
| Standard deductible | $615 | $700 |
| Annual out-of-pocket cap | $2,100 | $2,400 |
| Base beneficiary premium (monthly) | $38.99 | $41.33 |
These are the parameters for the standard defined benefit. Actual plan premiums, deductibles, and formularies vary by plan and region, and many plans differ from the standard structure. Higher-income beneficiaries also pay a Part D IRMAA surcharge, which is added to the plan premium and follows the same income thresholds as the Part B surcharge.
The base beneficiary premium is not what your plan charges. CMS uses it as the starting point for Part D plan premiums and to calculate the late enrollment penalty, which is 1% of the base beneficiary premium for each full month you went without Part D or other creditable drug coverage. Through 2029, the law limits its growth to 6% a year, which is why it moves from $38.99 to $41.33.
The Medicare Prescription Payment Plan, which lets beneficiaries spread out-of-pocket drug costs into monthly installments over the calendar year, continues in 2027. It does not lower your total cost, but it can smooth out large upfront pharmacy bills.
What Is Driving the 2027 Increases
Several factors push Medicare costs higher each year:
- Rising healthcare utilization. Beneficiaries are using more outpatient services, and assumed utilization increases consistent with historical patterns feed directly into premium calculations.
- Higher provider payments and medical prices. Physician and outpatient facility costs climb over time, and Part B premiums are set to cover roughly 25% of expected program costs.
- Demographic shifts. As the population ages and more people enroll, total program spending rises.
- Inflation indexing. The Part D deductible and out-of-pocket cap are indexed to grow with prescription drug cost growth, which is why the cap moves from $2,100 to $2,400.
One factor that slightly restrained the 2026 premium was a CMS policy change targeting spending on skin substitutes, which is projected to cut that spending sharply. Absent that action, the 2026 premium increase would have been higher, and similar policy decisions can influence the final 2027 figure.
How to Plan for 2027 Medicare Costs
Budgeting for Medicare is easier when you separate the official numbers from the estimates. The Part D cap, deductible and base beneficiary premium are official. The Part B premium, the Part B deductible, the Part A figures and the IRMAA brackets are still pending, and the 2027 numbers on this page for them are estimates.
A few practical steps:
- Watch for the November announcement. CMS releases official 2027 Part A and Part B figures in the fall, usually mid-November. That is when the estimates on this page get replaced by official numbers.
- Check your income against IRMAA thresholds. Because 2027 surcharges are based on your 2025 income, you may already know whether you cross a bracket. Life changes like retirement can qualify you to request a reduction.
- Review your Part D plan during Open Enrollment. The annual Medicare Open Enrollment period runs October 15 to December 7. With the deductible rising to $700, comparing plans on formulary and total cost matters more than premium alone.
- Factor in the $2,400 drug cap. If you take expensive medications, the cap limits your annual exposure, and the payment plan can spread it across the year.
If you or a household member is approaching age 65 or managing Medicare costs alongside other expenses, it is worth checking whether you qualify for programs that help cover premiums and out-of-pocket costs, such as a Medicare Savings Program or Extra Help for prescription drugs. These programs have income and asset limits and can significantly reduce what you pay.
Frequently Asked Questions
How much will Medicare Part B cost in 2027?
CMS has not announced it yet. The 2026 Medicare Trustees Report estimates the standard Part B premium at about $209.50 per month in 2027, up from $202.90 in 2026. CMS usually announces the official 2027 premium in mid-November, and the final number could be higher or lower.
What is the Part D out-of-pocket cap for 2027?
The Part D annual out-of-pocket cap rises to $2,400 in 2027, up from $2,100 in 2026. This figure is official: CMS published it in its CY 2027 Rate Announcement on April 6, 2026. Once your out-of-pocket spending on covered drugs reaches $2,400, you pay nothing more for covered medications for the rest of the calendar year.
What is the Medicare Part D deductible in 2027?
The standard Part D deductible increases to $700 in 2027, up from $615 in 2026. This is an official amount, published by CMS in its CY 2027 Rate Announcement on April 6, 2026. Individual plans may set a lower deductible or structure their benefit differently.
Has the 2027 Part A hospital deductible been announced?
Not yet. CMS is expected to announce the official 2027 Part A inpatient hospital deductible in mid-November 2026. For reference, the 2026 deductible is $1,736 per benefit period, up from $1,676 in 2025. The 2026 Trustees Report estimates $1,788 for 2027, but that is an estimate.
Why are Medicare costs going up in 2027?
The main drivers are rising healthcare utilization, higher provider payments and medical prices, demographic shifts as more people enroll, and inflation indexing of the Part D deductible and out-of-pocket cap. Part B premiums are set to cover about 25% of projected program costs, so when spending rises, premiums follow.
Will higher earners pay more for Medicare in 2027?
Yes. Beneficiaries with income above the IRMAA thresholds pay a surcharge on both Part B and Part D. CMS has not released the 2027 brackets. In 2026 they start above $109,000 for single filers and $218,000 for joint filers. Our estimate, using the inflation formula in the law, is that the 2027 brackets will start at about $112,000 and $224,000, based on 2025 income. Official brackets are expected in mid-November 2026.
When are official 2027 Medicare costs announced?
CMS typically announces official Part A and Part B premiums and deductibles, along with the IRMAA brackets, in mid-November of the prior year, so expect confirmed 2027 figures around mid-November 2026. The 2027 Part D standard benefit figures are already official: CMS published them on April 6, 2026.
Sources
- CMS, Announcement of Calendar Year (CY) 2027 Medicare Advantage Capitation Rates and Part C and Part D Payment Policies, April 6, 2026 (Table V-2, Part D deductible and out-of-pocket threshold)
- CMS, Annual Release of Part D National Average Monthly Bid Amount and Other Part C and D Bid Information, July 28, 2026 (2027 base beneficiary premium)
- CMS, 2026 Medicare Parts A and B Premiums and Deductibles fact sheet, November 14, 2025
- 2026 Annual Report of the Boards of Trustees of the Federal Hospital Insurance and Federal Supplementary Medical Insurance Trust Funds, June 9, 2026 (Tables V.E1 and V.E2, 2027 estimates)
- Medicare.gov, The Part D Late Enrollment Penalty fact sheet
