2027 Medicare Part B Premium: Expected $209.50 and How Much of Your 3.6% COLA You Keep
Updated November 9, 2026
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Searches for "2027 Medicare Part B premium" are climbing because the official number is due any day. Medicare usually announces next year's Part B premium in early to mid-November, and it decides how much of your new Social Security raise you actually keep. Here is what the latest projections say and how to estimate your own 2027 check.
Quick answer: The Medicare Trustees project the standard 2027 Part B premium at about $209.50 a month, up $6.60 from $202.90 in 2026. The deductible is projected to rise from $283 to about $292. The 2027 Social Security COLA is 3.6%, so most retirees should still see a net increase. CMS has not released the final figures yet; we will update this post when it does.
Why is the 2027 Part B premium trending?
Social Security announced its 3.6% cost-of-living adjustment on October 14. For most people on Medicare, the Part B premium is taken straight out of their Social Security check, so the new premium decides the real size of the raise. CMS typically publishes the official amount in November, right as Medicare open enrollment wraps up on December 7.
2026 vs. projected 2027 Medicare Part B costs
| 2026 (official) | 2027 (projected) | |
|---|---|---|
| Standard monthly premium | $202.90 | About $209.50 |
| Annual deductible | $283 | About $292 |
| Yearly premium cost | $2,434.80 | About $2,514 |
| Social Security COLA | 2.8% | 3.6% |
2027 premium and deductible are Medicare Trustees projections reported by AARP (Oct. 2026). Final amounts come from CMS.
How much of your COLA will you keep?
Use this simple estimate: your 2026 benefit × 3.6% − $6.60.
- $1,500 monthly benefit: +$54.00 COLA − $6.60 = about $47 more a month
- $2,000 monthly benefit: +$72.00 − $6.60 = about $65 more
- $2,500 monthly benefit: +$90.00 − $6.60 = about $83 more
AARP estimates the average retiree's benefit rises by roughly $75 a month before Medicare is deducted. Your January 2027 Social Security statement, available in your my Social Security account in December, will show the exact net amount.
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Who pays more than the standard premium?
- Higher earners (IRMAA): If your modified adjusted gross income on your 2025 tax return was above the IRMAA threshold, you pay a surcharge on top of the standard premium. The 2027 brackets come out with the official premium.
- New enrollees and those who delayed: A late-enrollment penalty adds 10% for each full 12 months you could have had Part B but did not.
- Hold-harmless protection: If the premium increase would make your Social Security check smaller than last year, the rule limits the increase. With a 3.6% COLA, few people will need it.
What to do before December 7
- Review your plan. Medicare open enrollment runs October 15 to December 7. Check your plan's Annual Notice of Change for 2027 premiums, drug coverage and network changes.
- Compare plans. Use the Medicare Plan Finder at Medicare.gov to compare Part D and Medicare Advantage options.
- Check for help. Medicare Savings Programs and Extra Help can pay Part B premiums or drug costs if your income and savings are limited.
- Watch for the official number. Once CMS announces the 2027 premium, recheck your budget with the real figure.
FAQ
When will CMS announce the 2027 Part B premium?
CMS usually announces it in early to mid-November. The 2026 premium was announced in November 2025.
Is the 2027 Medicare Part B premium deducted automatically?
Yes, if you receive Social Security benefits, the premium is usually taken out of your monthly payment. Others get a bill from Medicare.
Will my Social Security check go down in 2027?
Very unlikely. The 3.6% COLA is larger than the projected premium increase for almost everyone, and the hold-harmless rule protects most people from a net cut.
Related reads
- Why Is the SSI November Payout Trending?
- Why Is ACA Open Enrollment Trending?
- 2027 401(k) Limit: Why It's Trending
This article is general information as of November 9, 2026, based on Medicare Trustees projections. It is not financial or insurance advice. Check Medicare.gov and SSA.gov for official 2027 amounts.
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