Medicare Surcharges Based on Past Income Can Offset Social Security's 2027 Cost-of-Living Increase

Retirees may receive two conflicting notices near year-end: one announcing a 2027 Social Security raise estimated at 3.5%, and another imposing Income-Related Monthly Adjustment Amount surcharges based on 2025 income. The first tier of IRMAA surcharge alone costs $95.70 monthly per person, potentially exceeding the anticipated $70 monthly COLA gain and completely erasing the raise for affected beneficiaries. Retirees experiencing income drops from retirement or life events can request lower premiums using Form SSA-44, though voluntary income increases like Roth conversions typically don't qualify.

Medicare's income-related surcharge system creates a timing mismatch that can significantly reduce retirement income for affected beneficiaries. The surcharges are calculated using tax returns from two years prior, meaning a retiree who earned substantial income in 2025 but retired afterward faces premium increases on Social Security benefits in 2027 based on income that no longer exists. This lag between the income measurement period and the premium application creates an unintended penalty for life transitions.

Retirees do have recourse options available. Those experiencing genuine income declines from retirement, divorce, or other involuntary events may appeal using Form SSA-44 to request adjusted premiums. However, strategic financial decisions—such as Roth conversions undertaken in 2025—do not typically qualify as qualifying life events, meaning the surcharges remain in place regardless of whether the income was temporary or intentional.