By Christian BrinkleyLicensed NC Insurance Agent, NPN 22217190, NC Life & Health · Updated October 19, 2026 · 4 min read
Every October the same question comes up in Greensboro living rooms: the Social Security raise is coming, so why does the check barely move? The answer is timing. Your raise and your Medicare premium increase are decided by two different agencies, in two different months, and the premium comes out of your check before you see it. Here is how the two numbers interact for 2027, and the rule that keeps a premium hike from shrinking your payment.
Two announcements, one month apart
The Social Security Administration announced the 2027 cost-of-living adjustment, the COLA, on October 14, 2026: 3.6 percent. That works out to about $75 a month on the average benefit. The number is official now, so you can do real math with it.
The Part B premium comes later. The Centers for Medicare and Medicaid Services announces next year's standard premium in November. For 2026 it is $202.90 a month. For 2027 the 2026 Medicare Trustees Report projected about $209.50. A projection, not the final figure.
Do not plan off headlines. Until both announcements are out, every 2027 comparison you see is built on at least one guess.
Do the math on your own check
The raise is a percentage of your benefit. The premium increase is a flat dollar amount. That mismatch is the whole story.
| Your monthly benefit | Raise at 3.6% (final) | Part B hike ~$6.60 (projection) | What you keep |
|---|---|---|---|
| $1,500 | +$54.00 | -$6.60 | ~$47.40 |
| $2,000 | +$72.00 | -$6.60 | ~$65.40 |
| $2,500 | +$90.00 | -$6.60 | ~$83.40 |
One number is final, one is not: the 3.6 percent COLA is official, the $6.60 premium increase is still a projection. Your benefit and the final premium decide your real result.
One more cost for the calendar: the standard Part D deductible rises to a maximum of $700 in 2027, and the out-of-pocket cap rises to $2,400. Both are final per the CMS CY2027 Rate Announcement. The deductible does not come out of your check. It shows up at the pharmacy counter in January.
The rule that keeps your check from shrinking
Federal law includes a provision people call hold harmless (42 U.S.C. 1395r(f)). If the Part B premium increase is bigger than your COLA, your premium increase is limited so your net Social Security payment does not go down.
It does not cover everyone. It does not apply to IRMAA surcharges for higher incomes, to people who pay Part B directly instead of through deduction, to premiums paid by Medicaid, or to first-year Part B enrollees.
It stops your check from shrinking. It does not guarantee you keep the whole raise.
What to do with this before January
The lever you control opens October 15. The Annual Enrollment Period runs October 15 to December 7, the one time of year you can change drug plans and Medicare Advantage plans for January 1. Premiums get the headlines, but drug deductibles and tiers move every year, and that is where the bigger surprises hide.
Then read your December notice. Social Security mails a letter showing your exact 2027 amount, also visible in your my Social Security account. Compare that number to your January deposit, not to the COLA headline.
If the math worries you, talk to someone local before December 7. A ten-minute review of your drug list against next year's plans beats a hundred COLA headlines.
Questions people ask me about this
When will the 2027 numbers be final?
SSA announced the 2027 COLA of 3.6% on October 14, 2026. CMS announces the 2027 Part B premium and deductible in November. Your exact new amount arrives in a Social Security notice in December, and higher payments start with January 2027 benefits.
Can a Part B increase make my Social Security check go down?
For most people with premiums deducted from Social Security, no. Hold harmless limits the premium increase so the net payment does not fall. Exceptions: IRMAA surcharges, direct Part B payers, new enrollees, and Medicaid-paid premiums.
Does the Part D deductible come out of my check too?
No. The Part D deductible is paid at the pharmacy, not deducted from your check. For 2027 the standard deductible maxes out at $700, per the CMS CY2027 Rate Announcement. Once you hit the $2,400 out-of-pocket cap, covered drugs cost $0 the rest of the year.
I pay extra for Medicare because of my income. Does hold harmless protect me?
No. IRMAA, the income-related monthly adjustment amount, sits outside hold harmless protection. If your income dropped since the tax year Social Security used, you can ask for reconsideration with a life-changing event form.
Where do I see my exact new amount?
Your December notice shows your exact 2027 benefit, also visible in your my Social Security account. That number minus your Part B premium is the January deposit to expect.
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