Social Security’s 2027 cost-of-living adjustment (COLA) is estimated at 3.5% as inflation data continues to cool, according to AARP’s latest analysis. This projection would increase the average retired worker’s monthly benefit by roughly $73, from approximately $2,026 to $2,099, starting in January 2027.
The estimate reflects moderating inflation pressures across the economy. The Personal Consumption Expenditures (PCE) index, a closely watched inflation measure, cooled to 3.6% in July, down from 3.7% in June, according to recent government data. Social Security’s COLA is calculated using the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W), which tracks inflation for a specific segment of the workforce.
Current projections for 2027 range from 3.4% to 3.6%, with AARP’s 3.5% estimate sitting near the middle of analyst forecasts. The Social Security Administration will announce the official 2027 COLA on October 14, 2026, after the Bureau of Labor Statistics releases September inflation data.

The 3.5% projection would mark a meaningful increase from the 2.8% COLA recipients received in 2026, though it falls short of the exceptional 8.7% bump that beneficiaries saw in 2023 during the post-pandemic inflation surge. The 2025 COLA was 2.5%, and 2024’s was 3.2%, showing the volatility in annual adjustments tied to inflation trends.
Inflation’s trajectory remains the key variable. If price pressures moderate further in August and September, the final COLA could land at the lower end of current estimates; if inflation stabilizes or ticks up, beneficiaries could see a higher adjustment. The 2027 COLA is projected to be the largest boost since 2023, reflecting the difference between today’s inflation environment and the subdued price growth of recent years.

For the roughly 71 million Social Security beneficiaries nationwide, even modest COLA increases matter. The adjustments help benefits keep pace with the rising cost of goods and services, though research shows whether beneficiaries truly keep pace with inflation remains debated. The official announcement on October 14 will settle the 2027 figure, ending months of projection and speculation among retirees and financial planners.
Sources
- AARP — COLA projection analysis for 2027; estimate of 3.5% based on inflation data
- CNBC — AARP’s 3.5% estimate and monthly benefit impact; cooling inflation context
- CBS News — AARP’s COLA estimate and historical context (2.8% in 2026, 2.5% in 2025, 3.2% in 2024, 8.7% in 2023)
- Fox Business — Estimate range (3.2% to 3.6%) based on July CPI inflation data
- Social Security Administration — COLA calculation methodology using CPI-W; October 14, 2026 announcement date
- AARP (retrieved data) — PCE inflation cooling to 3.6% in July, down from 3.7% in June











