Updated October 1, 2026. Quick answer: The Medicare Part B deductible for 2026 is $283, up $26 from $257 in 2025. It is the same for every Part B beneficiary and is separate from the monthly premium, which is $202.90. The Part A inpatient hospital deductible is $1,736.
The other 2026 Medicare figures: the 2026 Part A deductible, the 2026 Part A premium and the Medicare Part B deductible status page.
The 2026 Part B deductible
CMS says “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 Medicare cost figures side by side
| Item | 2025 | 2026 |
|---|---|---|
| Part B annual deductible | $257 | $283 |
| Part B standard monthly premium | $185.00 | $202.90 |
| Part A inpatient hospital deductible | $1,676 | $1,736 |
The Part A deductible covers “beneficiaries’ share of costs for the first 60 days of Medicare-covered inpatient hospital care in a benefit period.”
Coinsurance after the deductible
CMS’s payment instruction lists “Part B coinsurance: 20%” beside the deductible. After the $283 is met, the beneficiary’s share of covered Part B services is that 20%.
2026 Medicare Part A cost sharing
| Part A item | 2026 amount |
|---|---|
| Inpatient hospital deductible | $1,736 |
| Hospital coinsurance, days 61 to 90 | $434 a day |
| Hospital coinsurance, lifetime reserve days | $868 a day |
| Skilled nursing facility coinsurance, days 21 to 100 | $217 a day |
| Part A base premium | $565 a month |
The Part A figures are in the CMS fact sheet and in the payment instruction. The $565 is the full premium for people without enough quarters of coverage.
Premium versus deductible
The deductible is a once-a-year amount you pay for Part B services before coverage starts to share costs. The premium is the monthly charge for having Part B. The premium rises with income, up to $689.90 a month for the highest bracket in 2026, but the deductible is the same for everyone. For the premium brackets see the IRMAA page.
Medigap and the Part B deductible
Supplemental Medigap coverage interacts with this deductible. See the Plan G page for how Plan G treats the Part B deductible.
Common mistakes
- Confusing the $283 deductible with the $202.90 monthly premium.
- Using the 2025 amount of $257 for 2026 services.
- Assuming a high income raises the deductible. It raises the premium only.
Related: the IRMAA brackets and surcharges, Medigap Plan G, and the Part A deductible page.
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.