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You open the letter from Social Security, see a number deducted from your benefit, and have no idea how it was calculated. If you have been asking what does Medicare Part B cost in 2026, the short version is that most people pay $202.90 a month, but plenty of people pay more and a few pay less. The amount depends on your income from two tax years ago, whether you signed up on time, and whether a state program helps cover it. None of that is obvious from the letter, so here is the full math in plain English.
What Does Medicare Part B Cost in 2026?
The standard Medicare Part B premium for 2026 is $202.90 per month, and the annual Part B deductible is $283. Most people pay the standard premium because about 93 percent of beneficiaries fall below the income threshold where surcharges begin. If you receive Social Security, the premium is deducted from your monthly benefit automatically rather than billed to you.
That premium is only part of the picture. After you meet the $283 deductible, Original Medicare pays 80 percent of the approved amount for most covered services and you pay the remaining 20 percent. There is no annual cap on that 20 percent, which is the part most people do not realize until a hospital bill arrives.
A worked example: suppose you have outpatient surgery in 2026 with a Medicare-approved cost of $14,000. You pay the $283 deductible first. Then you owe 20 percent of the remaining $13,717, which is roughly $2,743. Your total for that one procedure is about $3,026, on top of the $2,434.80 you paid in premiums for the year.
Why Is Your Part B Premium Higher Than the Standard Amount?
Your premium is higher than $202.90 because of the income-related monthly adjustment amount, or IRMAA, a surcharge that applies when your reported income crosses a federal threshold. For 2026, the surcharge begins above $109,000 for a single filer and above $218,000 for a married couple filing jointly. Adjusted premiums range from $284.10 to $689.90 per month depending on which bracket you land in.
Here is the detail that catches people off guard: IRMAA for 2026 is based on your 2024 tax return, not your current income. Social Security uses the most recent return the IRS has on file, which is always two years behind. So a one-time event in 2024, selling a rental property, cashing out an inherited IRA, taking a large capital gain, can raise your premium in 2026 even though your income has since dropped back to normal.
If that describes you, there is a remedy. Social Security form SSA-44 lets you request a reduction when a life-changing event caused the income drop, including retirement, divorce, the death of a spouse, or the loss of a pension. The surcharge is not permanent and it is recalculated every year as new returns come in.
What Does Part B Actually Cover for That Premium?
Part B covers outpatient and medically necessary care, which is most of what happens outside a hospital admission. That includes doctor visits, specialist consultations, lab work, diagnostic imaging, outpatient surgery, durable medical equipment such as walkers and oxygen, physical therapy, mental health services, and most preventive screenings. Annual wellness visits and many screenings are covered at no cost to you when you see a provider who accepts Medicare assignment.
What Part B does not cover is just as important. It pays nothing toward routine dental care, eye exams for glasses, hearing aids, or long-term custodial care. It also does not cover prescription drugs you pick up at a pharmacy, which is the job of Part D.
Understanding where Original Medicare stops is the first step in deciding what to add, and that is the conversation to have before your enrollment window closes. A broker who works across Medicare plan options can map your prescriptions and doctors against the plans available in your county.
The 20 percent coinsurance with no annual maximum is the gap most people choose to close. Some do it with a Medicare Supplement policy, others with a Medicare Advantage plan that bundles a cap, and some add a separate accident and supplemental policy to handle the cash shortfalls that come with an unexpected hospital stay. Jonathan Potter has been licensed since 2006 and has run his own brokerage since 2011, and the question he asks first is always the same: what would a bad year actually cost you?
What Happens If You Delay Signing Up for Part B?
If you delay Part B without qualifying coverage, you face a permanent late enrollment penalty of 10 percent of the standard premium for every full 12-month period you could have enrolled but did not. At the 2026 standard premium, each 12-month period adds about $20.29 a month, and the penalty stays with you for as long as you have Part B.
Delay three years and you are paying roughly $60.87 extra every month, about $730 a year, forever. The exception is if you had creditable coverage from active employment, either yours or your spouse’s, in which case a Special Enrollment Period lets you join without penalty. Retiree coverage and COBRA do not count as active employment for this purpose, which is a distinction that costs people real money every year.
Can You Get Help Paying the Part B Premium?
Yes, Medicare Savings Programs run through your state Medicaid office can pay your Part B premium in full, and in some cases your deductible and coinsurance as well. The Qualified Medicare Beneficiary program is the most comprehensive of the four, and eligibility is based on monthly income and countable assets, with limits that are adjusted each year.
Many people who qualify never apply because they assume their income is too high or the paperwork is not worth it. If you are within a few hundred dollars a month of the threshold, it is worth checking, since enrollment in one of these programs also triggers automatic eligibility for Extra Help with Part D prescription costs.
FREQUENTLY ASKED QUESTIONS
Is the Medicare Part B premium the same for everyone?
No. Most people pay the 2026 standard premium of $202.90 a month, but higher earners pay an IRMAA surcharge that pushes the premium as high as $689.90. A small number of long-term beneficiaries are also protected by the hold harmless provision and may pay slightly less.
Does the Part B deductible reset every year?
Yes. The $283 Part B deductible is an annual amount that resets on January 1. Once you have paid it for the year, you move to the 20 percent coinsurance for the rest of that calendar year.
Can I drop Part B if I do not use it much?
You can, but it is rarely a good idea unless you have active employer coverage. Dropping Part B and rejoining later triggers the late enrollment penalty and can leave you without a guaranteed right to buy a Medicare Supplement policy. Talk it through with a broker before you file anything.
Does a Medicare Advantage plan replace the Part B premium?
No. You keep paying your Part B premium even when you enroll in a Medicare Advantage plan, because Advantage plans are paid by Medicare to administer your benefits. Some plans offer a Part B giveback that reduces the premium, but that is a plan feature, not a rule.
Medicare Part B costs $202.90 a month in 2026 for most people, with a $283 deductible and a 20 percent coinsurance share that has no annual ceiling. What you pay beyond that depends on your income from two years ago, your enrollment timing, and what you add to fill the gaps.
Every situation is different, and the right answer depends on your prescriptions, your doctors, and what you can absorb in a bad year. A free conversation with a licensed broker costs you nothing, since brokers are paid by the insurance carrier rather than by you.