Medicare’s 2027 Premium Hike Could Swallow Your Entire Social Security COLA

Your Social Security raise may already be spoken for before it ever reaches your bank account, and Medicare's next move could be the reason why.

Published September 16, 2026, 3:10pm ET · 3 min read

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A person's hand holds a red and silver pen, pointing to the words 'MEDICARE Part B' printed in bold black text on a light green sheet of paper on a black clipboard. In the blurred background, parts of a silver laptop, a yellow paper clip, a silver stethoscope, and a blue book are visible on a wooden surface.
As the article explores how brokers influence Medicare plan selections, this image highlights the detailed focus required for understanding options like Medicare Part B. © Vitalii Vodolazskyi / Shutterstock.com

Every fall, millions of retirees wait for one important number — Social Security’s annual cost-of-living adjustment (COLA). For seniors living on fixed incomes, COLAs are crucial because they can spell the difference between keeping up with rising bills and falling behind.

The problem is that a larger Social Security check doesn’t always translate into more money in retirees’ pockets. And a big reason boils down to rising Medicare costs.

Medicare Part B could take a bigger bite out of benefits

Healthcare costs have consistently risen faster than general inflation in recent years. And Medicare premiums have followed that trend.

For dual enrollees, Medicare Part B premiums are typically deducted directly from Social Security benefits. When Part B premiums rise sharply, they can potentially eat up an entire COLA, leaving seniors with no raise whatsoever.

In 2026, the standard monthly Medicare Part B premium increased by $17.90, climbing from $185.00 to $202.90. That represented one of the largest dollar increases in recent years and immediately reduced the value of Social Security’s 2.8% COLA.

Early projections suggest another Part B increase is coming in 2027. And if it ends up being substantial and the upcoming COLA isn’t so generous, it’s conceivable that the additional cost of Part B could negate seniors’ next COLA.

Now the good news is that any Part B hike that comes down the pike can’t exceed the amount of that year’s COLA. Thanks to what’s known as the hold harmless provision, Social Security benefits cannot decrease from one year to the next due to Medicare increases.

In other words, if there’s a COLA that results in a $19 Medicare Part B increase but the COLA only results in a $17 boost, that Social Security benefit cannot decrease by the $2 difference. In that case, that benefit would stay the same. But many seniors can’t afford to see their benefits remain flat given rising costs.

Careful budgeting is key

It’s too soon to know what 2027’s Social Security COLA will look like, or how much the cost of Medicare Part B will increase. But seniors may want to brace for rising costs and budget accordingly.

If you’re having trouble keeping up with your expenses, take a look at your spending now. Review every bill and credit card or bank statement to see where your money is going and start making adjustments to the best of your ability.

And in the course of planning your 2027 budget, expect Medicare to rise and eat away at a good chunk of your Social Security COLA. It may not wipe out your raise entirely, but you shouldn’t expect that COLA to make a meaningful difference in your finances.

In fact, if money has been tight, it could pay to go back to work in some capacity to give your income a boost. Working even a few hours each week might put more money in your pocket than any given Social Security COLA, even if there’s a decent net raise to enjoy in 2027 after accounting for rising Part B costs.

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Maurie Backman

Maurie Backman has more than a decade of experience writing about financial topics, including retirement, investing, Social Security, and real estate. Her work has appeared on sites that include The Motley Fool, USA Today, U.S. News & World Report, and Kiplinger.

Prior to becoming a full-time financial writer, Maurie worked in the financial industry trading distressed debt. She then changed course and spent a few years designing electronic toys. After a stint in content marketing and UX, she shifted back into writing and has since covered everything from the housing market to estate planning to Medicare.

When she's not busy writing, Maurie can be found hiking, walking her dogs, driving her kids to their various sports practices and games, and curling up with a good book. She cooks on occasion and bakes way too often.

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