COLA may be wiped out by an 11.6% hike in Medicare Part B premiums, posing a financial setback for low-income seniors.

Social Security's cost-of-living adjustment could rise 2.7%. But Medicare Part B premiums are set to rise even more, eating most of the COLA.

The cost-of-living adjustment for Social Security benefits is expected to be 2.7% in 2026, analysts said on Tuesday — but some beneficiaries may not see any increase at all.