Medicare’s 2026 Changes Could Quietly Shrink Your Social Security Check by $200 a Month

Medicare Part B premiums rose to $185 per month in 2026, an increase from the prior year that translates to less annual Social Security income for most retirees. The hit is far steeper for higher earners, where IRMAA surcharges can push monthly premiums significantly higher than the standard rate, meaningfully eroding the value of any COLA increase.

Medicare premiums are deducted directly from Social Security checks before the money reaches your bank account. This automatic withholding means even a modest COLA increase can be partially or entirely offset by rising healthcare costs. The personal savings rate declined to 4.2% as of Q3 2025, down from 5.1% a year earlier, suggesting retirees are already spending more of their income. When Medicare premiums rise faster than Social Security adjustments, the squeeze intensifies.

How IRMAA Brackets Work in 2026

IRMAA kicks in when your modified adjusted gross income exceeds a set threshold for individuals or married couples filing jointly. At that first threshold, monthly Part B premiums jump from the standard $185 to a higher amount per month, a meaningful but manageable increase for many retirees.

The surcharges are designed to scale with income, and the jump between brackets can be jarring. A retiree earning above the lower threshold sees premiums rise substantially — meaning Medicare alone can consume a significant portion of their annual income. At the highest income tier, premiums can reach a level that meaningfully offsets even a generous COLA increase and underscores why income management in retirement is not just about taxes.

What catches many retirees off guard is that IRMAA is based on tax returns from two years prior. Your 2026 premiums are determined by your 2024 income. A one-time spike from selling a rental property, taking a large IRA distribution, or realizing capital gains can trigger higher premiums for two years, even if your income has since returned to normal.

Strategies to Avoid Bracket Creep

Timing is a factor some retirees approaching an IRMAA threshold have considered carefully. Some have found that spreading large IRA withdrawals or Roth conversions across multiple years rather than taking a lump sum can result in lower bracket placement. With the Fed funds rate at 3.75% as of December 2025, the yield environment for conservative retirement portfolios has softened, making tax-efficient withdrawal strategies more important.

Qualified charitable distributions are another mechanism some retirees use. If you are 70½ or older, directing up to $105,000 annually from your IRA directly to charity satisfies required minimum distributions without increasing your adjusted gross income, keeping you out of higher IRMAA brackets.

For those already caught in a surcharge, you can appeal if income dropped due to a life-changing event like retirement, divorce, or loss of income-producing property. Social Security reviews these requests and may adjust premiums mid-year. Income decisions in a given year can have consequences for net Social Security checks two years later.