Most Medicare beneficiaries never see a bill for Part B the way they’d see one from a doctor’s office, because the premium is typically pulled straight out of a Social Security check before it ever hits a bank account. That makes it easy to miss when the underlying numbers actually change from one year to the next. For 2026, both pieces of the Part B math moved, and one of them jumped by more than 10%.
The $283 Deductible and the $17.90 Premium Jump
The Centers for Medicare & Medicaid Services set the 2026 standard monthly Part B premium at $202.90, up $17.90 from $185.00 in 2025. The annual Part B deductible, the amount a beneficiary pays before Medicare starts sharing the cost of outpatient care, rose to $283 in 2026, an increase of $26 from $257 in 2025. Both numbers apply to everyone enrolled in Part B who doesn’t already qualify for income-related surcharges or state assistance covering the premium.
The deductible is a once-a-year obligation, not a per-visit or per-service charge. Once it’s met, most Part B services are covered at 80% of the Medicare-approved amount, with the beneficiary typically responsible for the remaining 20% as coinsurance, assuming the provider accepts Medicare’s payment as full payment for the service.
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Why the Increase Wasn’t Bigger
CMS says the increase is mainly driven by projected price changes and expected utilization growth consistent with historical trends, the same routine drivers behind most year-over-year Part B changes. But CMS has also said the premium increase would have been roughly $11 a month higher without a specific policy change targeting one product category: skin and tissue substitutes used in wound care. Spending on those products grew from $256 million in 2019 to more than $10 billion in 2024, according to a CMS analysis of the pricing shift, driven in large part by charges that in some cases exceeded $2,000 per square centimeter for products with limited evidence of added clinical benefit. Under a finalized 2026 physician fee schedule rule, CMS is changing how it pays for these products, a shift it projects will cut related Medicare spending by close to 90% without reducing patient access to wound care.
Who Pays More Than the Standard Amount
Roughly 8% of people with Part B pay more than the standard premium because of an income-related monthly adjustment amount, based on modified adjusted gross income reported on a tax return from two years earlier. For 2026, that means a beneficiary’s 2024 tax return determines whether a surcharge applies. The added amounts scale in five steps and stack on top of the $202.90 base premium; someone in the highest bracket, individual income at or above $500,000 or joint income at or above $750,000, pays a total monthly Part B premium of $689.90 in 2026. Beneficiaries who file separately from a spouse they lived with during the year face a steeper, two-tier version of the same surcharge structure rather than the full five-tier schedule. A beneficiary who believes their surcharge no longer reflects their actual income, because of retirement, divorce, the death of a spouse, or another life-changing drop in income, can ask Social Security to use more recent income instead of the two-year-old tax return, rather than simply paying the higher amount until the next annual redetermination.
A Separate Track for Kidney Transplant Recipients
Not every Part B premium follows the same $202.90 baseline. Since 2023, people whose full Medicare coverage ended 36 months after a kidney transplant, and who don’t have other qualifying insurance, can elect to keep Part B coverage limited to immunosuppressive drugs by paying a separate premium. For 2026, that standard immunosuppressive-drug-only premium is $121.60 a month, well below the full Part B premium, because it covers a narrower slice of benefits. High-income beneficiaries in that same limited-coverage category face their own income-related add-ons on top of the $121.60 base, using the same tax-return lookback CMS applies to full Part B coverage, though the dollar amounts differ from the full-coverage surcharge table.
What the Deductible Actually Buys
The $283 figure isn’t a fee for a specific service; it’s the threshold a beneficiary has to clear before Original Medicare’s cost-sharing on outpatient care kicks in for the year. Preventive services covered at no cost, such as an annual wellness visit or a yearly depression screening, aren’t affected by whether the deductible has been met, since Medicare pays for those in full regardless. For nearly everything else billed under Part B, from a specialist visit to durable medical equipment, the deductible has to be satisfied first, and then the standard 20% coinsurance applies for the remainder of the year unless supplemental coverage picks up that share instead. Preventive care stays free either way, and the deductible resets on the same January 1 calendar-year schedule for every Part B enrollee, unlike the hospital-side Part A deductible, which resets per benefit period instead.
This article was produced with AI assistance and reviewed by a human editor. Figures are linked to their primary sources; where a claim could not be verified from the public record, we say so.
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