If your Social Security check this year feels smaller than the 2.8% cost-of-living adjustment (COLA) promised, you're not imagining things. The 2026 Medicare Part B premium increase is consuming more than a quarter of that raise for most beneficiaries.
Here's what's happening and what you can do about it.
The Numbers Tell the Story
The Social Security Administration announced that beneficiaries would receive a 2.8% COLA for 2026, translating to an average increase of about $56 per month. That brings the average retirement benefit from $2,015 to $2,071.
However, the Centers for Medicare & Medicaid Services raised the standard Medicare Part B premium to $202.90 per month—a 9.7% jump from the previous year's $185. This is the third consecutive year that Medicare Part B premiums have risen faster than Social Security's COLA.
Since most Medicare enrollees have their Part B premium deducted directly from their Social Security payment, that $17.90 monthly increase effectively reduces the COLA benefit for the typical retiree. According to the Boston College Center for Retirement Research, Part B premiums as a share of annual Social Security benefits will reach an all-time high of 9.4% in 2026.
Who Feels This the Most?
Low-income retirees bear the heaviest burden proportionally. Someone receiving around $1,000 monthly in Social Security benefits gets roughly a $28 COLA increase—but the $17.90 Medicare premium hike consumes more than 60% of that raise.
Higher-income retirees face even steeper costs. Those with individual income above $109,000 (or $218,000 for couples) pay income-related monthly adjustment amounts (IRMAA) that can push Part B premiums to $689.90 for the highest earners.
An AARP survey found that 77% of older adults said a 3% COLA would not be enough to keep up with rising prices. Similarly, a Motley Fool study reported that 68% of retirees said the 2026 raise would provide little to no help covering essential costs.
Strategies to Protect Your Retirement Income
While you cannot control Medicare premium increases, you can take steps to minimize their impact:
Review Medicare Savings Programs. If your income and resources are limited, you may qualify for programs that pay Part B premiums on your behalf. Medicaid recipients are fully protected from Part B premium increases through these programs.
Understand the hold harmless provision. Federal law prevents Medicare Part B premium increases from reducing your Social Security check below the previous year's amount. If you're protected by this provision, your net benefit won't decline—though it may not increase either.
Manage your adjusted gross income. IRMAA surcharges are based on your modified adjusted gross income from two years prior. Strategic Roth conversions, timing of investment sales, and qualified charitable distributions from IRAs can help manage income in ways that may reduce future Medicare premiums.
Diversify your retirement income sources. Tax-advantaged accounts like Roth IRAs provide tax-free withdrawals that don't count toward IRMAA calculations. Building multiple income streams gives you more flexibility to manage your tax situation.
Maximize 2026 contribution limits. For those still working, the IRS raised 401(k) contribution limits to $24,500, with catch-up contributions of $8,000 for those 50 and older. Workers aged 60-63 can contribute up to $35,750 total through the SECURE 2.0 super catch-up provision.
The Bottom Line
Social Security was designed to replace about 40% of pre-retirement income, not serve as a sole income source. When healthcare costs consistently outpace cost-of-living adjustments, retirees need additional strategies to maintain their purchasing power. Understanding how Medicare premiums interact with your Social Security benefits is the first step toward making informed decisions about your retirement income.
Sources: Social Security Administration, Centers for Medicare & Medicaid Services, Boston College Center for Retirement Research, AARP, Morningstar