Margaret Diaz, a 74-year-old retired school aide in Tucson, opened her January 2026 bank statement expecting a modest bump from Social Security. The cost-of-living raise was there, but it was smaller than she anticipated. Nearly a third of it had already been siphoned off to cover a higher Medicare premium she never asked for and never voted on.
She is far from alone. The Social Security Administration announced a 2.8 percent cost-of-living adjustment for 2026, putting roughly $56 more per month into the average retired worker’s benefit. But about $17.90 of that raise never reaches a retiree’s bank account. It is deducted automatically to cover the higher Part B premium. That single line item wipes out nearly 32 percent of the COLA increase before a retiree buys groceries, fills a prescription, or pays a utility bill. The headline says “more than a quarter,” and that is true. But the precise math lands at nearly a third, which makes the sting worse than the phrase suggests.
For beneficiaries with smaller checks, the share is even steeper. And the pattern has repeated, in one form or another, for years.
The numbers behind the squeeze
Two federal announcements set the stage. In October 2025, the Social Security Administration confirmed the 2.8 percent COLA for 2026, calculated from changes in the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W). Applied to the average retired-worker benefit, that translates to about $56 per month…