Medicare Part B is projected to cost $209.50 a month in 2027
The Trustees Report puts the 2027 standard Part B premium at $209.50, up $6.60 from 2026. Private forecasters think it lands higher. Here is the gap.
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Part B / month · Trustees Report projection
The 2026 Medicare Trustees Report projects a standard Part B premium of $209.50 a month in 2027, up from $202.90. That is a 3.3% increase. CMS does not confirm the real number until around November 2026.
Your Part B premium is projected to go from $202.90 a month to $209.50 in 2027. That is $6.60 more a month, or $79.20 over the year.
The figure comes from the 2026 Medicare Trustees Report. It is a projection, not the premium. CMS publishes the confirmed number — along with the deductible and the IRMAA brackets — around November 2026.
Why this year looks mild
Last year was not mild. The standard premium rose $17.90 in 2026, from $185 to $202.90. That was a 9.7% jump. The projected 2027 increase is 3.3%.
| Year | Standard premium | Change |
|---|---|---|
| 2025 | $185.00 | — |
| 2026 | $202.90 | +$17.90 (9.7%) |
| 2027 | $209.50 (projected) | +$6.60 (3.3%) |
The number to watch is not $209.50
Several private forecasters put the real 2027 premium between $215 and $219 a month. Their argument is a track record: the Trustees Report has come in under the actual premium in recent years.
If they are right, the increase is closer to $13–$16 a month, not $6.60. Nobody knows yet. What you can do is not build a 2027 budget on the low number.
What happens next
CMS announces the confirmed premium around November 2026. That announcement also sets the Part B deductible and the IRMAA brackets, which is what decides whether higher-income households pay a surcharge on top.
We will update this figure the day CMS publishes it.
Questions people ask
Is $209.50 the final number?
No. It is the Trustees Report projection. CMS publishes the confirmed premium around November 2026.
Why do some forecasters say $215 to $219?
They point to a pattern of Trustees Reports coming in under the actual premium. Both figures are projections until CMS publishes.