Social Security COLA Percentage for 2027: Experts Predict the Largest Boost in a Decade—See the Estimates Now

Latest 2027 COLA Percentage Estimates Signal Moderate Benefit Bump for Retirees Inflation may be cooling, but experts tracking the cost-of-living adjustment (COLA) for Social Security say beneficiaries should still expect a mid-single-digit raise when 2027 checks are calculated next year. Senior Citizens League projection The nonprofit Senior Citizens League (TSCL) now pegs the 2027 COLA at 3.8 percent, which would rank as the seventeenth-largest boost since automatic adjustments began in 1975. Motley Fool analysis Investment analysts at The Motley Fool, after reviewing the latest Consumer Price Index (CPI) readings, recently lifted their 2027 outlook from 2.8 percent to 3.9 percent, citing sticky shelter costs and a rebound in food prices. Mary Johnson’s inflation model Independent policy analyst Mary Johnson, whose monthly model factors in energy and medical-care inflation, forecasts a slightly lower 3.2 percent increase as gasoline prices retreat from spring highs. Why estimates differ • CPI-W volatility: COLA calculations are tied to third-quarter CPI-W data, a measure that can swing sharply with gas prices and holiday-season discounting. • Fed rate path: A faster-than-expected pivot to interest-rate cuts could re-ignite goods inflation, pushing the final COLA number toward the upper end of forecasts. • Medical cost share: Retirees spend a larger slice of their income on health care; if medical inflation remains elevated, actual purchasing power could erode even with a 3-plus-percent raise. What a 3.8 percent COLA means in dollars The average monthly retirement benefit is $2,026.41. A 3.8 percent bump would add roughly $77 per month, or $924 per year, before Medicare Part B premiums are deducted. Key dates to watch • October 2026: Bureau of Labor Statistics releases September CPI-W, locking in the final COLA figure. • December 2026: Social Security Administration mails cost-of-living notices. • January 2027: First checks reflecting the new COLA arrive. Search momentum Online interest in “2027 COLA percentage” has surged as retirees try to gauge next year’s household budgets. Financial planners recommend using the mid-range of today’s forecasts—around 3.5 percent—when modeling 2027 cash flow, then updating once the official CPI-W data are published. Bottom line Most forecasters now cluster between 3.2 percent and 3.9 percent for the 2027 COLA. While that is down from the historic 8.7 percent spike seen for 2023, it still outpaces the 2.6 percent average of the past decade and should help retirees partially offset everyday price pressures.