Medicare Part B premium 2027: what it will cost and who pays more

People searching for the Medicare Part B premium for 2027 are asking one practical question: how much will the monthly Part B bill be next year, and will they still pay the standard rate? As of November 7, 2026, Medicare has not yet announced the 2027 figure. The latest official standard monthly premium is the 2026 amount of $202.90, and that is the number to plan around until Medicare publishes next year's announcement, which typically lands in the coming weeks. Most enrollees have paid the standard amount every month, but a meaningful slice of higher income households pays considerably more through the income related monthly adjustment amount, or IRMAA. Here is how Medicare sets the premium, who stays on the standard rate, and who pays above it, using this year's published numbers.

What the premium costs today and when 2027 changes

The official standard Part B premium in 2026 is $202.90 per month, and Medicare says most people pay that standard amount every month. It is the number cited inside the current edition of the official Medicare & You handbook, which is why it is the correct baseline for anyone budgeting into next year.

Related reading: Medicare Part B Premium Increase 2027: Trustees Project $209.50 a Month.

Medicare usually announces the next year's Part B premium during the fall, which means a 2027 figure is expected in the coming weeks. Until that announcement posts on a Medicare or CMS page, the responsible planning number remains $202.90, dated to the 2026 benefit year. Nothing here is a prediction of what 2027 will bring; paired with the Social Security Administration's premium rules, the takeaway is simply that the standard amount is the anchor, and changes move from it one announcement at a time.

How Medicare sets the standard premium

Part B covers physician services, outpatient care, preventive services, and durable medical equipment, and it generally pays 80% of the Medicare approved amount for covered physician services while you pay the remaining 20% as coinsurance, plus the Part B deductible. The monthly premium is the other half of that split: Medicare recalibrates the standard amount each year against projected Part B program costs, so the premium tracks what the program expects to spend per enrollee in the coming year.

Related reading: Medicare Part B Premium 2027: the $6.60 Increase Cuts Into Your 3.6% COLA.

The premium is only one piece of the Part B bill. On top of it sits the annual Part B deductible and the 20% coinsurance you pay on covered services, so the amount withheld from a Social Security check is the premium alone, while the deductible and coinsurance are paid as care is used. A retirement budget should treat the three as separate lines rather than folding them into one monthly number.

Because the standard premium applies to most people, Medicare keeps the base rate as the common case and charges above it only at the top of the income scale. The design is deliberately two sided: the vast majority of enrollees stay on the flat standard amount, and a smaller, higher income group carries an added charge. That structure is why two retirees can receive the same Part B coverage while paying very different monthly bills.

Related reading: Medicare $90 rebate starts Oct. 8 for eligible Part B enrollees.

Who pays more: the IRMAA income tiers

The added charge is the income related monthly adjustment amount. Medicare computes it from your modified adjusted gross income, which it pulls from the IRS tax return you filed two years earlier. For 2026, that means your 2024 tax return. If your modified adjusted gross income for 2024 sat above $109,000 for a single filer, or above $218,000 for a married couple filing jointly, Medicare treats the premium as income related and adds a surcharge on top of the standard amount.

The threshold is the line, and the surcharge itself climbs in fixed steps that rise with income. Each step is an income bracket with its own monthly premium, and Medicare publishes the full bracket table with every annual announcement. The practical rule for planning is simple. At the standard level you pay $202.90, and each bracket you enter above $109,000 single, or $218,000 jointly, lifts the total above that figure. In 2026 the surcharges run in fixed steps: $81.20 on income from $109,000 to $137,000 single, $202.90 above that to $171,000, $324.60 up to $205,000, $446.30 up to $500,000, and $487.00 once a single filer's modified adjusted gross income reaches $500,000 or more. Below the thresholds the added charge does not apply at all, which is why most retirees never see a premium that leaves the standard column.

Related reading: Social Security benefit increase projection: COLA seen at 3.5% for 2027.

The two year lookback is worth restating for anyone planning around 2027. Because the income used for a benefit year comes from the tax return filed two years earlier, the 2027 tier, once Medicare announces numbers, will turn on your 2025 return rather than your 2024 one. That gives people who expect to cross a threshold in 2027 a specific document to review in advance, and it is part of why the annual announcement matters: one figure for the standard premium, and a full bracket table showing every higher tier and its monthly total.

A worked example with 2026 numbers

Compare two single filers on Original Medicare. The first retired and has modified adjusted gross income that keeps them under the thresholds. That person pays the standard premium of $202.90 per month, which equals $2,434.80 for the full 2026 benefit year. Their Part B bill is flat, and it is withheld from their monthly Social Security benefit, so the check arrives with the premium already deducted.

The second filer is still earning, and their 2024 modified adjusted gross income reached $500,000, clearing the top IRMAA bracket for a single filer. That filer pays the same standard $202.90 base plus the top tier surcharge of $487.00, for a monthly Part B premium of $689.90 and an annual bill of $8,278.80. Medicare does not cap the standard premium at the standard level; it adds the income related adjustment on top of the same $202.90 base every higher income filer pays. Both retirees receive the same Part B coverage. The entire difference is the income related surcharge, which is why financial plans built around the standard premium need to double check the single or couple's two year old tax return before they lock in a number.

Does the Part B premium cut into the Social Security COLA?

For most enrollees the answer is threaded through the mechanics of how benefits are paid. Part B premiums are deducted directly from monthly Social Security benefits, so a higher premium means more withheld from each check. That can offset part of a cost of living adjustment in any year the premium rises faster than the increase in benefits. Nothing here promises a specific 2027 outcome; it is simply the structure to expect when a plan is drawn up. Anyone whose income situation changed in a qualifying way, such as a job loss or a spouse's death, can ask Social Security to use more current income instead of the two year old return, and the agency's lower IRMAA process exists for exactly that request.

Frequently Asked Questions

When will the 2027 Part B premium be announced?

Medicare typically announces the next year's premium during the fall, so a 2027 figure is expected in the coming weeks. As of November 7, 2026, the most recent official standard amount remains the 2026 premium of $202.90 per month.

Will most retirees keep paying the standard premium?

Yes, based on how the program is built. Medicare states that most people pay the standard Part B premium amount every month. The income related surcharge applies only above the published income thresholds.

What income triggers IRMAA for 2026?

A single filer whose 2024 modified adjusted gross income topped $109,000, or $218,000 for a married couple filing jointly, faces the income related adjustment in 2026. Medicare computes the figure from the IRS tax return filed two years before the benefit year.

Does the Part B premium eat into next year's Social Security COLA?

The premium is deducted from monthly Social Security benefits, so a rising premium means more withheld from the check. In a year the premium rises faster than benefits, it can offset part of a cost of living increase. No specific 2027 outcome is promised here.

How do I appeal a higher premium?

If your income fell for a qualifying life event, such as a job loss or a spouse's death, you can ask Social Security to base the premium on more current income rather than the two year old return. The request runs through SSA.gov/medicare/lower-irmaa.

This content is for informational purposes only and does not constitute financial advice. Past performance is not indicative of future results. Consult a qualified financial advisor before making decisions about your retirement income or Medicare enrollment.

Sources

The current standard premium and the income thresholds come from the official Medicare & You handbook and Medicare's Part B costs overview. Premium deduction, the 2026 premium tier table and the lower IRMAA appeal route run through the SSA Medicare premiums page, the Social Security Administration Medicare page and its lower IRMAA request page. The adjusted gross income figure Medicare builds from is defined in IRS Publication 17.