The official 2027 Medicare Part B premium and deductible have not been announced yet. The Centers for Medicare & Medicaid Services (CMS) usually publishes them in November (last year’s figures came out on November 14, 2025), so the official 2027 numbers are expected around mid-November, and this post will be updated when CMS publishes them. Until then, the best available guide is the projection in the 2026 Medicare Trustees Report: a standard Part B premium of $209.50 a month and a $292 annual deductible. This is general information, not advice about any person’s coverage.
Official 2026 figures
According to the CMS fact sheet on 2026 premiums and deductibles, the standard Part B premium is $202.90 a month in 2026, up $17.90 from $185.00 in 2025. The annual Part B deductible is $283, up $26 from $257. CMS attributes the premium increase mainly to projected price changes and assumed growth in use of services, and says that without action on skin substitute spending the increase would have been about $11 a month higher.
The same fact sheet gives the 2026 Part A (hospital insurance) inpatient deductible as $1,736 per benefit period. About 99% of people pay no Part A premium because they have at least 40 quarters of Medicare-covered work.
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Projected 2027 figures: what the Trustees Report says
The 2026 Annual Report of the Medicare Trustees, transmitted to Congress on June 9, 2026, says the estimated monthly Part B premium for 2027 is $209.50. In Table V.E2 it also estimates the 2027 Part B deductible at $292. The report stresses that these are estimates based on its intermediate assumptions and that “the actual amounts are likely to be somewhat different as experience emerges.”
| Item | 2026 (official, CMS) | 2027 (projected, Trustees) | Change |
|---|---|---|---|
| Part B standard monthly premium | $202.90 | $209.50 | +$6.60 (about 3.3%) |
| Part B annual deductible | $283 | $292 | +$9 |
| Part A inpatient deductible | $1,736 | $1,788 | +$52 |
The percentage and dollar changes are our arithmetic from the two columns. The Trustees describe these amounts as estimates, so the final figures can differ.
People with higher incomes pay an income-related monthly adjustment amount on top of the standard premium. The 2026 income bands and add-ons are in the CMS fact sheet: for an individual, the standard premium applies at a modified adjusted gross income of $109,000 or less, and the add-ons run from $81.20 to $487.00 a month above that, for totals of $284.10 to $689.90. For 2027, Table V.E3 of the Trustees Report projects add-ons from $83.70 to $502.60 a month. The 2027 income thresholds are set by CMS and have not been published yet, so no 2027 bands are given here.
What is already official for 2027
- Social Security cost-of-living adjustment. The Social Security Administration has announced a 3.6% increase in Social Security and SSI benefits for 2027, affecting 76 million Americans, according to its update on the 2027 COLA. That page does not give a Part B premium.
- Part D limits. Table V.E2 of the Trustees Report lists the 2027 Part D deductible as $700 (up from $615 in 2026) and the catastrophic threshold as $2,400 (up from $2,100), and marks both amounts as already finalized.
The Trustees Report notes that a hold-harmless provision in the law limits the dollar increase in an individual’s Part B premium to the dollar increase in their Social Security benefit. It applies to most people whose premiums are deducted from Social Security benefits, roughly 70 percent of Part B enrollees. The report’s figure of $209.50 is the standard premium before that rule is applied to any individual, so it is not a prediction of what any one person will pay.
Open Enrollment dates
Medicare’s yearly Open Enrollment period runs from October 15 to December 7. Medicare.gov says changes take effect on January 1 and the plan must receive the request by December 7. During this window people with a Medicare Advantage Plan can join, drop or switch plans, and people with Original Medicare can join, drop or switch a Medicare drug plan. Part B premiums and deductibles are not chosen in Open Enrollment; they are set for everyone by CMS. Our guide to Medicare and ACA Open Enrollment covers the dates and what each window allows.
What happens next
CMS typically publishes a fact sheet titled “Medicare Parts A & B Premiums and Deductibles” in its newsroom. When the 2027 version appears, this post will be updated with the official figures. The CMS newsroom had no such release as of November 11, 2026. For questions about your own coverage, contact Medicare, your State Health Insurance Assistance Program or a licensed counselor.
Sources
- 2026 Annual Report of the Boards of Trustees of the Federal Hospital Insurance and Federal Supplementary Medical Insurance Trust Funds (CMS)
- CMS fact sheet: 2026 Medicare Parts A & B Premiums and Deductibles
- Social Security Administration: Update on the 2027 cost-of-living adjustment
- Medicare.gov: Open Enrollment
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