Social Security COLA for 2027 may be 3.5% to 3.6%, new estimates show — the highest in 3 years

The Social Security cost-of-living adjustment for 2027 may range from 3.5% to 3.6%, according to new estimates based on recent government inflation data. The 2027 COLA is calculated using the Consumer Price Index for Urban Wage Earners and Clerical Workers from July, August, and September, with the final figure announced in October. If estimates prove accurate, the 2027 adjustment would be the largest since 2024, when beneficiaries received a 3.2% increase. The exact percentage will be determined by inflation readings over the coming months.

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