Is the 2027 COLA eaten by Medicare premiums? For most retirees, no, but the answer depends on the size of your check and your income. The Medicare Trustees project that the standard Part B premium will rise by $6.60 to $209.50 a month in 2027, while forecasters expect the Social Security cost-of-living adjustment to land between 3.5% and 3.6%. On the average retired worker check of $2,085.98, that raise is worth about $73 a month, so the Part B increase would swallow roughly 9 cents of every raise dollar. The catch is timing. SSA announces the COLA on October 14, 2026, but CMS will not confirm the real Part B premium until November, and some private analysts think it could land closer to $215 or $219. We’ll be updating this article monthly.
The stakes look different from last year. In 2026, Part B jumped $17.90 to $202.90, a 9.7% increase, and it absorbed about a third of the $56 raise SSA estimated for the average retired worker. This time the projected premium increase is the smallest in years, yet other pressures are stacking up. The Part B deductible is projected at about $292, up from $283. The federal cushion that held down stand-alone Part D premiums ends after 2026, and CMS lifted the national base premium to $41.33. Retirees who pay an income-related surcharge get no hold-harmless protection at all. This guide shows what you keep, who is most exposed, and includes a calculator for your own numbers.
Key Highlights: 2027 COLA vs Medicare Premiums
| Item | Latest figure |
|---|---|
| Official 2027 COLA announcement | October 14, 2026 |
| 2027 COLA forecasts | 3.5% (Senior Citizens League, Mary Johnson), 3.6% (AARP) |
| Standard Part B premium | $202.90 in 2026, projected $209.50 in 2027 (up 3.25%) |
| Part B deductible | $283 in 2026, projected about $292 in 2027 |
| CMS confirms official Part B figures | Expected in November 2026 |
| Part D base beneficiary premium | $38.99 in 2026, $41.33 in 2027 |
| Part D out-of-pocket cap | $2,100 in 2026, $2,400 in 2027 |
| Medicare open enrollment | October 15 to December 7, 2026 |
| IRMAA starts at (2026) | $109,000 single, $218,000 joint |
Will the 2027 COLA Be Eaten by Medicare Premiums?
Not for the typical retiree. At a 3.5% COLA and a $209.50 Part B premium, the average retired worker keeps about $66 of a roughly $73 raise. The raise shrinks faster for people with small checks, for anyone who pays an income surcharge, and for those whose Part B premium ends up higher than the Trustees’ estimate.
Part B vs COLA in 2026 and 2027
Last year is a useful yardstick. The 2026 raise looked decent on paper, then the premium jump took a bite. The table compares that experience with the current 2027 projection. The 2026 column uses SSA’s estimates, and the 2027 column applies a 3.5% forecast to the July 2026 average, so treat it as an illustration rather than a prediction for any one person.
| Average retired worker | 2026 (official) | 2027 (estimate) |
|---|---|---|
| Gross benefit before COLA | $2,015.00 | $2,085.98 |
| COLA | 2.8% | 3.5% forecast |
| Raise in dollars | About $56 | $73.01 |
| Standard Part B premium | $185.00 to $202.90 | $202.90 to $209.50 |
| Part B increase | $17.90 | $6.60 |
| Share of raise absorbed by Part B | 32.0% | 9.0% |
| Net raise after the Part B increase | $38.10 | $66.41 |
Look at it from the other direction too. Part B takes about 9.7% of the average gross check in both years, so the share of your monthly income going to the premium barely moves. The bigger story is the multi-year drift. From 2025 to 2027, the standard premium would climb 13.2%, from $185 to $209.50. The two COLAs combined, 2.8% and 3.5%, compound to about 6.4%. Medicare’s standard premium is outrunning the raise over that stretch, even if 2027 alone looks gentler.
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What If the Part B Premium Comes in Higher Than $209.50?
The Trustees revised their own 2027 estimate down from $218.60 in last year’s report, which shows how much these projections move. Several private analysts still expect a final number between $215 and $219, partly because the Trustees have underestimated costs in recent years. The next table stress tests the average check at three premium levels. Each cell shows the share of the raise absorbed and, in brackets, the net raise.
| COLA | Raise | Part B at $209.50 | Part B at $215.00 | Part B at $219.00 |
|---|---|---|---|---|
| 3.0% | $62.58 | 10.5% ($55.98) | 19.3% ($50.48) | 25.7% ($46.48) |
| 3.5% | $73.01 | 9.0% ($66.41) | 16.6% ($60.91) | 22.1% ($56.91) |
| 3.6% | $75.10 | 8.8% ($68.50) | 16.1% ($63.00) | 21.4% ($59.00) |
Even in the harshest cell, the average retiree still nets more than the $38.10 they kept from last year’s raise. That is the honest takeaway: 2027 looks better than 2026 unless inflation surprises to the downside in the September report.
COLA vs Medicare Premiums by Benefit Size
The Part B increase is a flat dollar amount, while the COLA is a percentage. That means smaller checks lose a bigger slice. Here is the effect at a 3.5% COLA and a $209.50 premium.
| Gross monthly benefit | COLA raise | Part B increase | Share absorbed | Net raise |
|---|---|---|---|---|
| $1,000 | $35.00 | $6.60 | 18.9% | $28.40 |
| $1,200 | $42.00 | $6.60 | 15.7% | $35.40 |
| $1,500 | $52.50 | $6.60 | 12.6% | $45.90 |
| $2,000 | $70.00 | $6.60 | 9.4% | $63.40 |
| $2,500 | $87.50 | $6.60 | 7.5% | $80.90 |
| $3,000 | $105.00 | $6.60 | 6.3% | $98.40 |
| $4,000 | $140.00 | $6.60 | 4.7% | $133.40 |
Medicare Premium vs COLA Calculator
Averages hide a lot. Use the calculator below to test your own gross benefit against any COLA and any Part B premium. You can also add expected changes in your Part D premium or an income-related surcharge, and tell the tool whether hold-harmless protection applies to you.
Will Medicare Eat My 2027 COLA? Calculator
Will Medicare Eat My 2027 COLA? Calculator
Use your gross monthly benefit, the amount before Medicare and tax deductions. Results are estimates until SSA and CMS publish official 2027 figures.
The tool applies hold-harmless only to the Part B increase, as the rule does. Part D and IRMAA changes are never protected. SSA rounds each benefit down to a whole dollar.
Hold Harmless Rule Explained: Who Is Protected From Part B Increases
The hold-harmless rule stops a Part B increase from shrinking the dollar amount of your Social Security check. If the premium rise would exceed your COLA raise, the increase is capped at the raise, and your deposit stays the same as the year before. Because the projected 2027 premium increase is only $6.60, the rule will matter only for people whose COLA raise falls below that amount, which means a benefit under roughly $190 a month at 3.5%.
The rule does not cover everyone. New Medicare enrollees are outside it. So are people who do not have the premium deducted from their Social Security payment, and people who pay a higher income-related premium. In 2026 the rule was barely needed, since the average raise of $56 outpaced the $17.90 premium increase. If you pay IRMAA, you absorb the full increase every year, whatever the COLA turns out to be.
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2027 Part B Premium and Deductible: Projected vs Official
The $209.50 figure comes from the 2026 Medicare Trustees Report, not from CMS. It works out to a 3.25% increase, the smallest percentage rise since the 2023 drop. The same report projects the annual Part B deductible rising by $9 to about $292. Part B premiums are set to cover roughly a quarter of program costs, and general federal revenue pays the rest, so spending on outpatient care, physician services and costly drugs given in clinics pushes the premium up.
Do not lock your budget to the projection. For 2026, CMS published the official figures on November 14, 2025, and the same November window is expected this year. Looking further out, the Trustees see premiums reaching $360 by 2035, with the largest yearly jump, $23.40, between 2032 and 2033. The report also projects the Hospital Insurance fund running short in the second quarter of 2033, when about 89% of scheduled benefits would be payable.
IRMAA in 2027: When the Medicare Premium Is Much Bigger
IRMAA, the income-related monthly adjustment amount, is where the COLA is most likely to disappear. It adds a surcharge to Part B and Part D when your modified adjusted gross income from two years earlier tops a threshold. For 2026 the surcharge starts above $109,000 for single filers and $218,000 for joint filers, based on 2024 tax returns. The first tier lifts total Part B to $284.10 a month, and the top tier reaches $689.90. Part D surcharges run from $14.50 to $91.00 a month on top of the plan premium.
For 2027 the lookback year is 2025. Early projections put the first threshold near $112,000 for singles and $224,000 for couples, though CMS has not confirmed it. A retiree crossing a bracket by a small amount can see a monthly jump of $80 or more, which is many times the COLA raise. If your income has dropped since the lookback year because of retirement, a pension loss or another qualifying life event, Form SSA-44 lets you ask SSA to use current income instead.
Part D Premiums in 2027: The Second Medicare Squeeze
Part B is not the only Medicare cost moving. On July 28, 2026, CMS set the 2027 national average monthly bid at $296.05, roughly 24% higher than this year, and confirmed that the Part D Premium Stabilization Demonstration will end after 2026. That program had trimmed standalone drug plan premiums since 2025. The national base beneficiary premium rises to $41.33 from $38.99. It is a benchmark, not the bill you will see. Early guidance suggested that most people should expect an increase of less than $10 a month, though plan-level prices vary and CMS will publish the full landscape before open enrollment.
There is some relief built into the design. The annual out-of-pocket cap on covered drugs rises to $2,400 for 2027 from $2,100, and the standard deductible is reported at $700. Open enrollment runs from October 15 to December 7, which makes this fall the moment to compare plans. If a cheaper plan saves you $10 a month, that alone can offset the Part B increase.
Social Security Payment Schedule: When the New Amounts Arrive
Medicare premiums are taken from your benefit before the money is deposited, so the timing of announcements matters as much as deposit dates. Here is the calendar to watch.
| Date | What happens |
|---|---|
| October 14, 2026 | SSA announces the 2027 COLA after the September CPI report |
| October 15, 2026 | Medicare open enrollment begins |
| November 2026 | CMS expected to announce official 2027 Part B premium, deductible and IRMAA brackets |
| December 7, 2026 | Medicare open enrollment ends |
| December 2026 | SSA mails COLA notices and posts them in the my Social Security Message Center |
| December 31, 2026 | SSI recipients expected to receive the increased amount |
| January 13, 20 and 27, 2027 | Second, third and fourth Wednesday payments with the new COLA and Part B deduction |
People who started benefits before May 1997, or who receive both SSI and Social Security, are paid on the third of the month, and January 3, 2027 falls on a Sunday, so check SSA’s official calendar for that group.
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How to Apply for Medicare and Social Security Benefits?
If you are approaching 65, the steps below start both programs. People already receiving Social Security before 65 are enrolled in Medicare Parts A and B automatically.
- Note your Initial Enrollment Period. It runs seven months, starting three months before the month you turn 65.
- Create or sign in to a my Social Security account with Login.gov or ID.me.
- Apply for Medicare Part A and Part B online through SSA, or apply for retirement benefits at the same time.
- Choose how you want to pay the Part B premium. Most people have it deducted from their Social Security check.
- Compare Part D drug plans or Medicare Advantage on Medicare.gov, then enroll before your window closes.
Delay carries a price. If you skip Part B without other qualifying coverage, the premium can rise by 10% for every full 12-month period you could have had it.
Medicare and Social Security Processing Time
SSA reports that since December 2025, more than 420,000 people who filed Medicare claims online had them processed fully digitally, with decisions in as little as one business day. Standard retirement claims are processed in about 14 days when benefits are due at or before your start date, but complicated records can stretch to six weeks. If you file for both Medicare and retirement benefits, apply a few months before your 65th birthday so nothing is late.
Requests to lower an IRMAA surcharge run on a separate track and depend on the documents you submit. Keep proof of the life event, such as a retirement letter, and watch your mail and online Message Center for SSA’s decision.
Ways to Shrink Your Medicare Costs Before January
You cannot change the COLA, but you can act on several costs. This is general information, not financial or tax advice.
- Compare Part D and Medicare Advantage plans during open enrollment, since premium and formulary changes can be bigger than Part B’s increase.
- Ask your state about Medicare Savings Programs, which can pay some or all of the Part B premium for people with limited income.
- Apply for Extra Help with Part D costs if your income and resources are low.
- File Form SSA-44 if a life event has cut your income since your IRMAA lookback year.
- Remember the two-year lookback. Income you report for 2026 affects the premium you pay in 2028.
Official Medicare and Social Security Websites
Use these government pages for anything involving your own account or premium. Avoid lookalike sites that request payment for services SSA and CMS offer free.
| Resource | What you can do | Link |
|---|---|---|
| my Social Security (login and registration) | Sign in or create an account, view benefit amounts, notices and application status | ssa.gov/myaccount |
| SSA COLA information | Official COLA announcements and fact sheets | ssa.gov/news/en/cola |
| Apply for Medicare through SSA | Sign up for Part A and Part B | ssa.gov/medicare/sign-up |
| Medicare premiums and IRMAA | Rules for higher-income beneficiaries | SSA Medicare premiums |
| Form SSA-44 | Request a lower IRMAA after a life-changing event | SSA-44 form |
| Medicare.gov | Official Medicare site, costs and coverage | medicare.gov |
| Medicare plan finder | Compare Part D and Medicare Advantage plans | medicare.gov/plan-compare |
| Medicare Savings Programs | Help paying Medicare premiums | Savings Programs |
| Extra Help with Part D | Low-income help with drug plan costs | Extra Help |
| CMS Part D 2027 bid fact sheet | Official base premium and bid data | CMS fact sheet |
| Medicare Trustees Report | Premium and trust fund projections | CMS Trustees Report |
| SSA payment calendar | Official 2026 to 2027 payment dates (PDF) | Payment calendar |
| Bureau of Labor Statistics CPI | Inflation data behind the COLA | bls.gov/cpi |
| Phone help | SSA: 1-800-772-1213. Medicare: 1-800-633-4227 | Call directly |
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FAQs About Medicare Premiums and the COLA
How much is Medicare Part B in 2027?
The Trustees project a standard premium of $209.50 a month, up from $202.90 in 2026. CMS will publish the official amount in the fall, so treat it as an estimate.
Does Medicare Part B go up when the Social Security COLA goes up?
The two are set separately. The COLA follows consumer prices, while the Part B premium follows Medicare spending. They often rise in the same year, which is why people feel the raise disappearing.
What is the hold harmless rule for Medicare?
It prevents a Part B increase from lowering your Social Security deposit compared with the year before. It does not protect new enrollees or people who pay income-related surcharges.
Will my Social Security check go down in 2027 because of Medicare?
Very unlikely for most people. A $6.60 projected premium increase is far below the average raise. A drop is possible mainly for IRMAA payers or new enrollees whose premiums change sharply.
What is the Part B deductible for 2027?
The 2026 deductible is $283. The Trustees Report projects about $292 for 2027, and CMS will confirm the final figure.
Can I get help paying the Part B premium?
Yes, if your income and resources are low. Medicare Savings Programs, run through your state, can cover part or all of the premium. Contact your state Medicaid office to check eligibility.
When will CMS announce the 2027 Part B premium?
CMS has typically announced the figures in November, and for 2026 the release came on November 14, 2025. Expect a similar window this year.
How do I lower an IRMAA surcharge?
If your income has fallen because of retirement, a work reduction, divorce or another qualifying event, file Form SSA-44 with proof. SSA can then use your newer income to set the premium.
Can my Part D premium come out of my Social Security check?
Yes, many plans let you choose to have the premium withheld from your benefit, which spares you a separate bill. Ask your plan how to set that up.
What happens if I delay Part B enrollment?
Without qualifying employer coverage, you can owe a lifetime penalty of 10% of the standard premium for each full 12 months you were eligible but not enrolled.
How can I see my deduction and new benefit amount?
Sign in to your my Social Security account and open the Message Center after SSA posts its December notice. The notice lists your gross benefit, the Medicare deduction and your net payment.
Conclusion
For most retirees, the COLA will not be eaten by Medicare premiums in 2027. At a 3.5% raise and a $209.50 Part B premium, the average retiree keeps roughly $66 a month of a $73 increase, a far better outcome than the 2026 experience. The risk sits with smaller checks, higher-income retirees paying IRMAA, new enrollees and anyone who picks a Part D plan that jumps in price. Watch October 14 for the COLA, November for the official Part B premium, and use open enrollment to trim the costs you can control. We’ll keep updating this page as new figures come out.
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