Updated October 1, 2026. Quick answer: The standard Medicare Part B premium for 2026 is $202.90 a month, an increase of $17.90 from $185.00 in 2025, according to CMS. The annual Part B deductible is $283. People with higher incomes pay an income-related monthly adjustment on top, up to a total of $689.90 a month.
Related reading on this site: Form CMS-40B for Medicare Part B enrollment, Form CMS-1763 to end Medicare Part B and Form SSA-1020 for Medicare Extra Help.
The 2026 standard premium
CMS says “The standard monthly premium for Medicare Part B enrollees will be $202.90 for 2026, an increase of $17.90 from $185.00 in 2025.” The same fact sheet sets “The annual deductible for all Medicare Part B beneficiaries will be $283 in 2026, an increase of $26 from the annual deductible of $257 in 2025.”
2026 Part B premium by income
| Individual tax return, MAGI | Joint tax return, MAGI | Income-related adjustment | Total monthly Part B premium |
|---|---|---|---|
| $109,000 or less | $218,000 or less | $0.00 | $202.90 |
| Over $109,000 up to $137,000 | Over $218,000 up to $274,000 | $81.20 | $284.10 |
| Over $137,000 up to $171,000 | Over $274,000 up to $342,000 | $202.90 | $405.80 |
| Over $171,000 up to $205,000 | Over $342,000 up to $410,000 | $324.60 | $527.50 |
| Over $205,000 and under $500,000 | Over $410,000 and under $750,000 | $446.30 | $649.20 |
| $500,000 or more | $750,000 or more | $487.00 | $689.90 |
CMS says “These income-related monthly adjustment amounts affect roughly 8% of people with Medicare Part B.” For how the brackets work and how to plan around them, see the IRMAA page.
The CMS payment instruction
CMS’s own payment instruction for claims processing repeats the figures. Its 2026 Part B list reads “Part B deductible: $283 a year”, “Part B coinsurance: 20%” and “Part B standard premium: $202.90 a month”. It also lists the premium for people who have only immunosuppressive drug coverage under Part B: “Part B immunosuppressive drug coverage only premium: $121.60 a month”.
2026 compared with 2025
| Item | 2025 | 2026 |
|---|---|---|
| Standard monthly premium | $185.00 | $202.90 |
| Annual deductible | $257 | $283 |
CMS released these on November 14, 2025. The 2027 amounts have not been published yet. See the 2027 Part B premium page for what is projected.
Common mistakes
- Assuming everyone pays the same premium. Higher incomes pay an income-related adjustment on top.
- Using the 2026 amounts on 2027 planning. CMS has not published 2027 amounts.
- Mixing the premium with the deductible. The $283 deductible is a separate annual amount.
Related: the IRMAA brackets and surcharges, the 2027 Part B premium page, and the Medicare and IRMAA guides.
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Sources
- CMS, 2026 Medicare Parts A and B Premiums and Deductibles (fact sheet, Nov. 14, 2025): https://www.cms.gov/newsroom/fact-sheets/2026-medicare-parts-b-premiums-deductibles
- CMS MLN Matters MM14279, Medicare Deductible, Coinsurance and Premium Rates: CY 2026 Update (Dec. 5, 2025): https://www.cms.gov/files/document/mm14279-medicare-deductible-coinsurance-premium-rates-cy-2026-update.pdf
Sources: the primary documents linked above, read on October 1, 2026. General information, not tax advice. Your own facts decide the outcome, and a preparer, the plan administrator or the agency itself is the right place to confirm anything consequential.