Will Medicare Part B Hikes Erase Your Social Security COLA? Retirees are asking the same question again this fall: will Medicare Part B hikes erase your Social Security COLA? The answer for 2026 was painful for many households. The Social Security cost of living adjustment was 2.8 percent, but the standard Medicare Part B premium jumped from $185.00 to $202.90 a month, an increase of $17.90. For the average retired worker, that one deduction swallowed roughly a third of the raise before a single dollar reached the bank. Now a new round of numbers is coming. The Social Security Administration is expected to announce the 2027 COLA in mid-October, right after the government publishes September inflation data, and outside forecasters are clustered between 3.5 and 3.6 percent. We’ll be updating this article monthly.
The picture for 2027 looks gentler, at least on paper. The 2026 Medicare Trustees Report projects a standard Part B premium of $209.50, only $6.60 above today’s level and the smallest percentage jump since 2023. If the COLA lands near 3.5 percent, the average retired worker would see a gross raise of about $72 a month and keep roughly $66 of it after Part B. That is a big improvement over 2026. But private analysts warn that the final premium could land closer to $216 to $219, and that would take back more than a fifth of the raise. The official Part B number will not be confirmed until CMS announces it in November, so anyone planning a 2027 budget right now is working with estimates, not facts. Below you will find the latest figures, a free calculator, key dates, and a plain-language guide to protecting your check.
Key Highlights and Dates
| Item | Latest figure or date | Status |
|---|---|---|
| 2026 Social Security COLA | 2.8 percent | Final |
| 2026 standard Part B premium | $202.90 per month (up from $185.00) | Final |
| 2026 Part B deductible | $283 | Final |
| 2027 COLA estimates | 3.5 to 3.6 percent (TSCL, AARP and others) | Estimate |
| 2027 Part B premium (Trustees) | $209.50 per month | Projection |
| 2027 Part B premium (private forecasters) | $216 to $219 per month | Projection |
| 2027 Part B deductible (Trustees) | About $292 | Projection |
| Official 2027 COLA announcement | Expected around October 14, 2026 | Upcoming |
| Medicare Open Enrollment | October 15 to December 7, 2026 | Upcoming |
| Official 2027 Part B premium | November 2026 (CMS) | Upcoming |
| Personal COLA notices from SSA | December 2026 | Upcoming |
| New amounts take effect | January 1, 2027 | Upcoming |
Social Security COLA vs Medicare Part B Premium: How the Two Numbers Collide
The Social Security COLA and the Medicare Part B premium are set by two different agencies using two different formulas, yet they meet in the same place: your monthly benefit. The COLA is tied to the Consumer Price Index for Urban Wage Earners and Clerical Workers, known as the CPI-W. The government compares the average for the third quarter with the same quarter a year earlier, and the percentage gain becomes the raise. Part B works differently. By law, the standard premium is set to cover about a quarter of the projected cost of Part B services, so when doctor visits, outpatient procedures and new drugs given in clinics get more expensive, the premium follows.
Because most retirees have the premium taken straight out of their Social Security payment, the raise and the bill arrive as one net number. That is why a headline COLA can feel like a smaller raise. If your check grows by $56 and your premium grows by $17.90, your real gain is $38.10. The question is never only how big the COLA is. It is how big the COLA is compared with the change in what Medicare takes first.
What Happened in 2026: A 2.8% COLA Against a 9.7% Premium Jump
The 2026 numbers are the best reality check for anyone who assumes a raise is a raise. The COLA was 2.8 percent, which added about $56 a month to the average retired worker benefit and lifted it to roughly $2,071. The standard Part B premium rose by nearly 10 percent, and the deductible climbed to $283. For someone with a smaller benefit, the math was even harsher. A retiree collecting $1,500 a month got about $42 more, and $17.90 of it went straight to Medicare, which is around 43 percent of the raise.
Higher earners felt it differently. A person with a $3,000 benefit received about $84 more and lost the same $17.90, so roughly 21 percent of the raise disappeared. Because the premium is a flat dollar amount for most people, it takes a bigger bite out of smaller checks. This is the core reason advocates keep pointing out that lower-income retirees feel Medicare inflation the most.
| Monthly benefit before raise | 2026 gross raise (2.8%) | Part B increase | Net raise | Share of raise lost |
|---|---|---|---|---|
| $1,000 | $28.00 | $17.90 | $10.10 | 64 percent |
| $1,500 | $42.00 | $17.90 | $24.10 | 43 percent |
| $2,015 (average retired worker) | $56.00 | $17.90 | $38.10 | 32 percent |
| $3,000 | $84.00 | $17.90 | $66.10 | 21 percent |
Medicare Part B Premium 2027: What the Trustees Report Says
On the 2027 side, the most important document is the 2026 Medicare Trustees Report released this summer. It projects the standard Part B premium at $209.50 a month, up from $202.90, which is an increase of $6.60 or about 3.25 percent. The same report lowered its outlook compared with last year, when the 2027 premium was forecast at $218.60. It also projects the Part B deductible rising from $283 to about $292. Last year’s report had guessed $206.50 for 2026, and the real number came in about $4 lower, so the Trustees’ track record is not perfect in either direction.
Some independent analysts think the government estimate may be too optimistic. Firms that track how CMS numbers have moved in recent years expect the actual premium to reach the range of $216 to $219. Enrollment shifts are part of the reason. More than half of eligible beneficiaries now choose private Medicare Advantage plans, and analysts say that can leave a sicker group in Original Medicare, which pushes the average cost per person up. The Trustees also caution that premium growth is expected to speed up again after 2027, so a calm year should not be mistaken for a trend.
2027 Social Security COLA Estimates: Where Forecasters Stand
The Senior Citizens League and independent policy analyst Mary Johnson both estimate the 2027 COLA at 3.5 percent. AARP has moved its projection up to 3.6 percent. Those estimates will be replaced by the real figure when the Bureau of Labor Statistics publishes September CPI-W data in October and the Social Security Administration turns it into an official percentage. If the final number is 3.5 percent, the average retired worker would receive a gross increase of about $72. A mid-range case of 3.4 percent would mean about $70. Even the low case would beat the Part B increase, which would make 2027 the first year since 2023 that the COLA rose by a larger percentage than the premium, if the Trustees’ premium estimate holds.
Keep one caution in mind. Federal employees under the FERS system get a reduced COLA when inflation is above 2 percent, so their raise may be closer to 2.6 percent. Their Part B math looks tighter than the headline suggests.
Free Calculator: Will Part B Erase Your COLA?
Use this tool to test your own numbers. Enter your monthly benefit before the raise, the COLA percentage, and the old and new Part B premiums. You can also add a monthly IRMAA surcharge or other Medicare costs that come out of your check. Use the preset buttons to load the actual 2026 results or the 2027 projection.
Real Raise After Part B: 2027 Scenarios by Benefit Size
The table below uses a 3.5 percent COLA and shows two Part B outcomes: the Trustees’ $209.50 and the high private forecast of $219. These are estimates and will change once the official numbers arrive.
| Monthly benefit | Gross raise (3.5%) | Net raise if premium is $209.50 | Net raise if premium is $219.00 |
|---|---|---|---|
| $1,500 | $52.50 | $45.90 | $36.40 |
| $2,071 (average retired worker) | $72.49 | $65.89 | $56.39 |
| $2,800 | $98.00 | $91.40 | $81.90 |
| $3,500 | $122.50 | $115.90 | $106.40 |
The lesson is simple. A $9.50 swing in the final premium can move the average retiree’s net raise by about the price of a tank of gas every month. That is why the November announcement matters as much as the October one.
Hold Harmless Provision: Can Your Social Security Check Go Down?
Many retirees worry their deposit could shrink. A rule known as the hold harmless provision offers protection in some cases. If the Part B increase is larger than your COLA in dollars, the law limits the premium increase so your net Social Security payment does not fall below the prior year. That protection covers people who already had Part B premiums withheld from their benefit in both December and January of the change.
It does not help everyone. New enrollees are not covered, people who pay Part B premiums directly by bill are not covered, and higher-income beneficiaries who pay IRMAA are not protected from the surcharge portion. Because the 2027 COLA is expected to exceed the premium increase in dollars for most retirees, hold harmless should matter less next year than it did in years with tiny raises. Still, low-benefit retirees and those who recently signed up should check their notices carefully.
IRMAA 2027: Why Higher Earners May Lose More of Their Raise
The Income-Related Monthly Adjustment Amount, called IRMAA, adds a surcharge to Part B and Part D for people above certain income levels. For 2026, the first threshold is $109,000 for a single filer and $218,000 for married couples filing jointly, based on tax returns from two years earlier. For 2027, Medicare will look at your 2025 income. The official bracket amounts will come out with the November premium announcement.
Anything that boosts your income two years before a premium year can raise your bill, including Roth conversions, large capital gains, the sale of a home or business, or big retirement account withdrawals. If your income has dropped since then because of retirement, marriage, divorce, the death of a spouse, or the loss of income-producing property, you can ask Social Security to use a more recent year by filing Form SSA-44. This is one of the most overlooked ways to cut a Medicare bill.
How to Apply for Medicare Part B and Check Your Status?
If you are turning 65 or already receiving Social Security, the enrollment path is straightforward. Follow these steps:
| Step | What to do |
|---|---|
| 1 | Find your Initial Enrollment Period. It lasts seven months, starting three months before the month you turn 65 and ending three months after. |
| 2 | If you already get Social Security or Railroad Retirement benefits, you are usually signed up for Parts A and B automatically, and your card arrives about three months before your 65th birthday. |
| 3 | If you are not receiving benefits yet, apply online through your my Social Security account or on the SSA website. |
| 4 | If you have job-based coverage and delayed Part B, request proof of employer coverage using Form CMS-L564 so you can use a Special Enrollment Period. |
| 5 | Create or log in to your Medicare account to view your coverage start date, premium and claims. |
Missing your window can be costly. Late enrollment can add a 10 percent penalty for every full 12 months you could have had Part B but did not, and it can last as long as you have coverage. If you have questions about your specific situation, call Social Security before the deadline, not after.
Processing Time: How Long Until Part B Starts and New Amounts Show Up
Online applications for Medicare are often processed within a few weeks, though the time depends on whether Social Security needs more documents. If you enroll during your Initial Enrollment Period, coverage generally starts the first day of the month you turn 65, and if you sign up in the months after your birthday month, coverage can start the month after you enroll. For a General Enrollment Period sign-up, which runs January 1 to March 31, coverage begins the month after you apply.
The COLA follows its own clock. Social Security announces the percentage in October, CMS confirms Part B in November, and personal notices are mailed in December. You can also check your online account, where the new benefit amount usually appears in early December. The new benefit and the new premium both take effect on January 1, 2027, and December’s raised benefit is paid in January because Social Security pays benefits one month behind.
Social Security Payment Schedule: October 2026 Dates and 2027 Timing
| Who you are | Payment day | October 2026 date |
|---|---|---|
| Started benefits before May 1997, or get both Social Security and SSI | 3rd of the month | October 2 (the 3rd falls on a Saturday) |
| Birthday on the 1st to 10th | Second Wednesday | October 14 |
| Birthday on the 11th to 20th | Third Wednesday | October 21 |
| Birthday on the 21st to 31st | Fourth Wednesday | October 28 |
Your first payment with the 2027 raise and the 2027 Part B premium will arrive in January 2027 under the same schedule. Remember that the premium is taken out before payment, so the deposit you see is already net of Medicare.
How to Protect Your COLA From Medicare Costs
Check whether you qualify for a Medicare Savings Program
State Medicare Savings Programs can pay the Part B premium for people with limited income and resources. Rules and limits vary by state, so it is worth applying through your state Medicaid office even if you think your income is too high. A yes can be worth more than $2,400 a year at the current premium.
Use Open Enrollment before it closes
Medicare Open Enrollment runs from October 15 to December 7. Standard Part B is the same no matter which plan you pick, but Part D and Medicare Advantage costs are not. Letting a plan auto-renew can lock in higher copays or a changed drug list. Compare plans with next year’s numbers in view.
Ask about an income appeal
If a life event lowered your income, file for a reconsideration of your IRMAA amount. Bring documents that show the change, such as a retirement letter or a final pay stub.
Budget with the high case
Because the final premium may land between $209.50 and $219, plan around the higher figure. If the real number is lower, you gain a small cushion rather than a surprise.
Official Websites and Resources
| Resource | Use it for | Official link |
|---|---|---|
| Social Security COLA page | Official COLA announcement and history | ssa.gov/cola |
| my Social Security account | Login, registration, benefit notices, application status | ssa.gov/myaccount |
| Medicare.gov | Coverage, costs, plan comparison | medicare.gov |
| Medicare account login | Claims, coverage dates, replacement card | medicare.gov/account/login |
| Social Security Medicare page | Sign up for Medicare and premium information | ssa.gov/medicare |
| Form SSA-44 | Request a lower IRMAA after a life change | ssa.gov/forms/ssa-44.pdf |
| Medicare Savings Programs | Help paying Part B premiums | medicare.gov savings programs |
| CMS newsroom | Official Part B premium announcement in November | cms.gov |
| Bureau of Labor Statistics CPI | Inflation data that sets the COLA | bls.gov/cpi |
Social Security COLA 2027: How Much More Will You Get in January?
FAQs
Will Medicare Part B hikes erase my Social Security COLA?
Not entirely for most people. In 2026, Part B took about a third of the average raise. Based on current projections, the 2027 hit would be much smaller, around 9 percent of the average raise if the premium is $209.50 and around 22 percent if it reaches $219.
What is the Medicare Part B premium for 2026?
The standard monthly premium is $202.90, and the annual deductible is $283.
What is the projected Medicare Part B premium for 2027?
The Trustees project $209.50 a month, while some private forecasters expect $216 to $219. The official amount comes from CMS in November.
When will the 2027 Social Security COLA be announced?
It is expected around October 14, 2026, after the September CPI-W report is released.
Is Part B taken out of my Social Security check automatically?
Yes, for most people who receive Social Security. If you are not yet receiving benefits, Medicare sends a bill instead.
Can I lower my Part B premium?
You may qualify for a Medicare Savings Program, or you can appeal an IRMAA surcharge if your income dropped because of a qualifying life event.
Does the COLA apply to SSI?
Yes, SSI payments receive the same percentage increase, and the SSI schedule follows the first of the month.
How much of my COLA will Medicare take?
It depends on your benefit. A flat premium increase takes a larger share from smaller checks. Use the calculator above to see your own percentage.
Why does Medicare Part B go up every year?
Costs for physician services, outpatient care and clinic-administered drugs keep rising, and the premium is set by law to cover about 25 percent of those costs.
Will my Social Security check go down in 2027?
Your gross benefit will not go down, because the COLA is expected to be positive. Your net deposit could fall only if Medicare costs rise by more than your raise, and hold harmless rules may help in that case.
What is the average Social Security benefit after the 2027 COLA?
If the COLA is 3.5 percent, the average retired worker benefit would rise from about $2,071 to roughly $2,143 before Medicare deductions.
Do I have to pay Part B if I have Medicare Advantage?
Yes. Medicare Advantage members must still pay the Part B premium unless a state program or their plan covers it.
What happens if I skip Part B?
You may face a lifelong late penalty of 10 percent for each full 12 months you were eligible and did not enroll, unless you have qualifying employer coverage.
How do I check my Part B premium amount?
Log in to your my Social Security account or read the December notice, which lists your new benefit and the premium being withheld.
Conclusion: The Real Answer Depends on Two Numbers Still Coming
For 2026, the answer to whether Medicare Part B hikes erase your Social Security COLA was close to yes for low-benefit retirees and partly yes for everyone else. For 2027, the early signs are better, with a 3.5 to 3.6 percent COLA forecast against a premium that the Trustees say will rise about 3.25 percent. Still, nothing is final until Social Security announces the COLA in October and CMS confirms the premium in November. Until then, run your numbers with the calculator, budget with the higher premium, use Open Enrollment before December 7, and check your eligibility for help with premiums. We’ll keep this page updated as each official figure is released.
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