Five months into 2026, the extra money from Social Security’s latest cost-of-living adjustment has had time to settle into retirees’ budgets. For most, the verdict is underwhelming. The 2.8% COLA that took effect in January added roughly $56 a month to the average retirement benefit. But a $17.90 increase in the standard Medicare Part B premium was already deducted before the deposit landed, trimming the actual gain to about $38 a month.
For the roughly 68 million Americans receiving Social Security, many of whom count on it for the bulk of their income, that $38 tells a more honest story than the 2.8% headline ever did.
Where the numbers come from
The Social Security Administration announced the 2.8% COLA in October 2025, based on year-over-year changes in the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W). That index tracks a broad basket of goods and services, and the third-quarter comparison determines each January’s adjustment.
The 2026 figure is notably smaller than the 8.7% increase retirees received in 2023, when energy and food prices were surging. It also trails the adjustments in 2024 and 2025, continuing a downward trend as inflation has cooled from its post-pandemic peak.
Separately, the Centers for Medicare and Medicaid Services published a fact sheet setting the 2026 standard Part B monthly premium at $202.90, up from $185 in 2025. According to that CMS fact sheet, projected increases in health care utilization and pricing were the primary drivers. The annual Part B deductible also climbed to $275 from $257, per the same source, an added cost the COLA does not specifically offset.
Because most retirees have their Part B premium deducted directly from their Social Security payment, the $17.90 monthly increase is subtracted before the check arrives. The arithmetic: $56 minus $17.90 leaves $38.10. That is the net raise for a beneficiary paying the standard premium with no income-related surcharges.
Why health care costs keep outpacing the raise
The COLA formula and the Part B premium calculation operate independently. Social Security’s adjustment is pegged to broad consumer inflation. Medicare premiums reflect projected spending on physician services, outpatient procedures, and prescription drugs administered in clinical settings. When health care costs grow faster than general inflation, and they frequently do, the premium increase eats a larger share of the COLA.
This pattern has repeated for years. Each adjustment cycle, the Part B premium increase claims a portion of the COLA before retirees see a dime. In 2026, a slightly larger premium hike consumed a slightly larger share of a slightly smaller COLA, continuing the trend.
Beyond the premium itself, Medicare’s cost structure includes deductibles, coinsurance, and copayments for hospital stays, skilled nursing care, and certain outpatient services. None of those expenses are offset by the COLA. A retiree who faces a hospitalization or needs ongoing treatment in 2026 could see out-of-pocket costs that dwarf the $38 monthly increase. And that is before factoring in Part D prescription drug premiums, which vary by plan but represent yet another deduction from the same fixed income.
Who feels the squeeze most
The $38 net figure assumes a retiree paying the standard Part B premium. Higher-income beneficiaries face income-related monthly adjustment amounts, known as IRMAA, that push their premiums well above $202.90. For those retirees, the net gain from the COLA can shrink further or, in some cases, vanish entirely.
At the other end of the income spectrum, retirees who rely on Social Security for 90% or more of their income have almost no cushion to absorb costs the COLA does not cover. According to SSA data published in the agency’s income of the aged reports, roughly 1 in 7 beneficiaries aged 65 and older fall into that category. For them, rent increases, grocery inflation, and supplemental insurance premiums for Medigap or Part D plans all compete for the same limited dollars.
One protection worth noting: the “hold harmless” provision in federal law prevents a Part B premium increase from actually reducing a retiree’s net Social Security payment compared to the prior year. If the premium hike would exceed the COLA dollar increase for a given beneficiary, the premium is capped so the check does not shrink. This safeguard matters most in years when the COLA is very small or zero. It does not apply to beneficiaries who are new to Medicare, who pay IRMAA surcharges, or who do not have premiums deducted from Social Security.
For the majority of retirees in 2026, the 2.8% COLA is large enough that the hold-harmless provision does not come into play, and the full $17.90 premium increase applies.
The gap between the promised raise and the actual deposit
Neither the SSA nor CMS has published a forward-looking projection that ties future COLAs to expected Medicare premium growth. And the SSA has not issued guidance on whether the CPI-W formula, which tracks spending patterns of working-age urban consumers rather than retirees, adequately captures the inflation older Americans actually experience.
That question has fueled a long-running debate. Some economists and advocacy groups have pushed for an experimental index called the CPI-E, which gives greater weight to health care and housing, two categories where retirees spend disproportionately more. Congress has not acted on those proposals, and the current formula remains unchanged.
For now, the 2026 arithmetic is settled. A 2.8% raise that nets $38 a month after Medicare is not meaningless, but it offers little buffer against a medical bill, a rent increase, or a spike at the grocery store. For retirees living on fixed incomes, the annual COLA announcement has become less a moment of relief and more a yearly reminder of how quickly rising health care costs close the gap between a promised raise and what actually lands in the bank account.
