Social Security COLA and Medicare: Retirees are about to learn a familiar lesson in how Social Security raises actually work. The Social Security and Medicare Trustees released their annual report on June 24, 2026, projecting that the standard Medicare Part B premium will climb to $209.50 a month in 2027, up $6.60 from the confirmed $202.90 charged in 2026. At the same time, early estimates put the 2027 Social Security cost-of-living adjustment somewhere between 3.1 and 3.8 percent, based on inflation data tracked through the summer. For the roughly 70 million Americans who receive both benefits, the real number that matters is not the COLA percentage by itself. It is what remains of that raise once the higher Medicare Part B premium is automatically deducted from the check.
This is not a new problem, but it catches a fresh group of retirees off guard every single year. Because most Medicare Part B premiums are withheld directly from Social Security payments, a bigger COLA headline does not always translate into a bigger deposit. The Part B premium jumped nearly 10 percent in 2026 alone, from $185.00 to $202.90, one of the steepest single-year increases in the program’s history, which meant a meaningful chunk of that year’s Social Security raise never reached retirees’ bank accounts. With the Trustees now projecting a smaller, 3.25 percent Part B increase for 2027, the math should look more favorable this time, but the exact outcome still depends on two numbers that will not be finalized until October and November 2026. We’ll be updating this article monthly as those official figures are confirmed, so you can see exactly how your net Social Security payment is likely to change before the new year begins.
What the Social Security COLA and Medicare Numbers Actually Mean
The Social Security cost-of-living adjustment is an annual increase applied to benefits to help retirees keep pace with inflation, calculated using the Consumer Price Index for Urban Wage Earners and Clerical Workers. The Medicare Part B premium, on the other hand, is the monthly fee most enrollees pay for outpatient and physician coverage, and it is set separately by the Centers for Medicare and Medicaid Services based on projected healthcare spending. These two figures move independently of each other, set by different formulas and different agencies, but they interact directly for the majority of retirees because the Part B premium is deducted straight out of the Social Security payment before it ever reaches your bank account. That is the connection behind every headline asking how much your Social Security COLA and Medicare premium will offset each other this year.
Key Highlights: 2026 Confirmed and 2027 Projected Figures
| Detail | 2026 (confirmed) | 2027 (projected) |
|---|---|---|
| Social Security COLA | 2.8 percent | 3.1 to 3.8 percent, official figure due mid-October 2026 |
| Average monthly Social Security benefit | $2,071 | Depends on final COLA |
| Standard Medicare Part B premium | $202.90 | $209.50 (projected), official figure due November 2026 |
| Part B premium increase | Up 9.7 percent from $185.00 in 2025 | Up about 3.25 percent from 2026 |
| Medicare Part B annual deductible | $283 | $292 (projected) |
| Part D standard deductible | $615 | $700 (finalized) |
| Part D annual out-of-pocket cap | $2,100 | $2,400 (finalized) |
| Data source for Part B projection | 2026 Medicare Trustees Report, released June 24, 2026 | Same report, revised down from last year’s $218.60 estimate |
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Why the 2027 Medicare Part B Premium Is Rising Less Than 2026’s Did?
The Trustees Report attributes the projected 3.25 percent Part B increase for 2027 to the same underlying drivers that push premiums up most years: rising healthcare utilization among beneficiaries, higher payments to providers, and a steadily growing enrollee population as more Americans age into Medicare. What is notable about the 2027 projection is how much smaller it is compared to 2026’s nearly 10 percent jump, and compared to last year’s own Trustees Report, which had projected the 2027 premium at $218.60 before this year’s revision brought the estimate down to $209.50, a difference of more than $9 a month. That kind of swing is a useful reminder that even official Trustees projections can move meaningfully before the real number is locked in each November.
Some private forecasters remain more cautious than the Trustees, pointing to a recent pattern of the government underestimating actual Part B costs, with a few analysts suggesting the real 2027 premium could land closer to $215 to $219 rather than the $209.50 currently projected. Either way, the direction is the same: 2027 is shaping up to be a comparatively gentler year for Medicare Part B costs after 2026’s outsized hike, though the Trustees also warn that premium growth is expected to accelerate again in the years following 2027.
How Much of Your Social Security Raise?
Here is where the two numbers collide for the typical retiree. Take someone receiving the average 2026 Social Security benefit of $2,071 a month. If the 2027 COLA lands at the current mid-range projection of roughly 3.4 percent, that retiree’s gross monthly increase would be about $70.41. Subtract the projected $6.60 Part B premium increase, and the net increase left in the actual deposit comes out closer to $63.81 a month, still a real gain, but noticeably smaller than the COLA percentage alone would suggest.
Retirees who saw their entire raise wiped out in past years, or close to it, typically experienced a year when the Part B increase was unusually large relative to a modest COLA, which is exactly what happened heading into 2026. With Part B rising a comparatively modest 3.25 percent for 2027 against a COLA projected in the 3 to 4 percent range, most retirees should retain the bulk of their raise this time, though higher earners and new enrollees who fall outside certain protections may see a different result, covered further below.
The Hold-Harmless Rule: Your Safety Net, With Limits
Most Social Security recipients are protected by what is known as the hold-harmless provision, a rule that generally prevents a Medicare Part B premium increase from reducing your net Social Security payment below what you received the previous year. In practice, this means your Part B premium increase can never be larger than your dollar increase in Social Security benefits, for the majority of beneficiaries covered by the rule.
The protection is not universal, however. It typically does not apply to people newly enrolling in Medicare that year, since they have no prior year’s net payment to protect. It also does not apply to beneficiaries who pay a higher, income-adjusted Part B premium under the Income-Related Monthly Adjustment Amount, commonly known as IRMAA, since those beneficiaries are considered to have the financial capacity to absorb a larger premium increase. And it does not apply to anyone who has their Medicare premium paid by a state Medicaid program rather than deducted from their own Social Security check.
Who Pays More: IRMAA and the Income-Related Premium Tiers
Higher-income Medicare beneficiaries pay more than the standard Part B premium through IRMAA, a surcharge based on modified adjusted gross income reported on a tax return from two years prior. For 2027, early projections put the first IRMAA threshold at roughly $112,000 in modified adjusted gross income for single filers and around $224,000 for married couples filing jointly, based on 2025 tax returns, though these figures remain projections until CMS finalizes them alongside the standard premium in November. Beneficiaries who cross these thresholds pay a higher Part B premium in tiers that increase with income, on top of whatever the standard premium ends up being for 2027.
How to Apply for Medicare and Manage Your Premium Deduction?
Most people become eligible for Medicare automatically at age 65 if they are already receiving Social Security benefits, with Part B premiums deducted directly from their monthly payment without any separate action required. Those not yet collecting Social Security when they turn 65 need to actively enroll in Medicare during their Initial Enrollment Period, either online through the Social Security Administration, by phone, or in person at a local field office, to avoid potential late enrollment penalties. Once enrolled, beneficiaries can manage their Medicare account, view premium amounts, and check enrollment or IRMAA appeal status through their online my Social Security or Medicare.gov account.
Processing Time and Payment Schedule for the 2027 Changes
Neither the 2027 COLA nor the 2027 Medicare Part B premium is final as of this update. The Social Security Administration typically announces the official COLA percentage in mid-October, once the Bureau of Labor Statistics releases the September Consumer Price Index figure, while CMS confirms the actual Part B premium, deductible, and IRMAA thresholds separately in November, usually a few weeks before Medicare’s Annual Election Period ends. Both changes take effect at the same time, January 1, 2027, and beneficiaries who receive Social Security will see the net adjusted amount, COLA increase minus any Part B premium increase, reflected automatically in their January 2027 payment with no application or processing delay on their part.
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What Retirees Should Do While Waiting for the Official Numbers?
Because both figures remain projections until October and November 2026, financial advisors generally recommend treating the current estimates as a planning range rather than locking in a household budget around them. Retirees who are close to an IRMAA threshold may want to review their expected 2025 income now, since that figure determines the 2027 premium tier, and some life-changing events, such as retirement, divorce, or the loss of income-producing property, can qualify a beneficiary for a reduced IRMAA determination through a formal appeal with the Social Security Administration.
Social Security COLA vs Medicare Premium Calculator
Social Security COLA vs Medicare Premium Calculator
See how much of your 2027 Social Security raise is left over after the projected Medicare Part B premium increase is deducted from your check.
Official Resources for Social Security COLA and Medicare Updates
Always verify final figures through official government sources once they are announced.
| Resource | What it's for | Link |
|---|---|---|
| my Social Security account | Login, check benefit amounts, and manage Medicare premium deductions | https://www.ssa.gov/myaccount |
| Medicare.gov | Registration, plan details, and official Part B premium and deductible announcements | https://www.medicare.gov |
| Social Security COLA information page | Official annual cost-of-living adjustment announcements | https://www.ssa.gov/cola |
| Social Security IRMAA appeal information | Request a reduced income-related premium after a life-changing event | https://www.ssa.gov/benefits/medicare/medicare-premiums.html |
| CMS Medicare Trustees Reports | Full annual projections for Part A and Part B trust funds | https://www.cms.gov/data-research/statistics-trends-reports/medicare-medicaid-trustees-reports |
FAQs About Social Security COLA and Medicare
Will my Social Security check actually go up in 2027 after Medicare takes its cut?
For most beneficiaries, yes, though by less than the full COLA percentage. Based on current projections, a 3.1 to 3.8 percent COLA combined with a roughly 3.25 percent Part B premium increase should leave the majority of retirees with a modest net increase in their monthly deposit.
Can my Medicare Part B premium increase erase my entire Social Security raise?
For most beneficiaries, no, thanks to the hold-harmless provision, which generally prevents a Part B increase from reducing your net check below the prior year's amount. This protection does not apply to new Medicare enrollees, IRMAA-tier beneficiaries, or those with premiums paid by Medicaid.
When will the official 2027 Medicare Part B premium be announced?
The Centers for Medicare and Medicaid Services typically confirms the actual premium, deductible, and IRMAA thresholds in November of the preceding year, so the official 2027 figures are expected in November 2026.
How is the 2027 Social Security COLA calculated?
The COLA is based on the average Consumer Price Index for Urban Wage Earners and Clerical Workers across July, August, and September, compared to the same three months of the prior year, with the official percentage announced by the Social Security Administration in mid-October 2026.
Why did my Medicare premium go up so much more than my Social Security raise in 2026?
The Part B premium rose nearly 10 percent heading into 2026, from $185.00 to $202.90, a larger jump than the 2.8 percent Social Security COLA applied that same year, which meant many retirees kept only a small portion of that year's raise after the premium deduction.
What is IRMAA and how does it affect my Medicare premium?
IRMAA, the Income-Related Monthly Adjustment Amount, is a surcharge added to the standard Part B premium for higher-income beneficiaries, based on modified adjusted gross income from a tax return filed two years earlier. Beneficiaries above certain income thresholds pay progressively higher premium tiers.
Is the Medicare Part B premium increase the same for everyone?
No. Most beneficiaries pay the standard premium, projected at $209.50 for 2027, but higher earners subject to IRMAA pay additional surcharge tiers on top of that standard amount.
Conclusion
The relationship between the Social Security COLA and Medicare Part B premium determines what retirees actually see land in their bank accounts each January, and the 2027 outlook is shaping up more favorably than 2026's outsized premium jump. With a projected COLA in the 3.1 to 3.8 percent range set against a comparatively modest 3.25 percent Part B increase, most beneficiaries protected by the hold-harmless rule should keep the majority of their raise this time. Both figures remain projections until the Social Security Administration and CMS finalize them in October and November 2026, so treat the numbers in this article as a planning guide rather than a locked-in outcome, and check back monthly as we update this page with the official 2027 figures once they are released.
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