Social Security beneficiaries could see a 2027 cost-of-living adjustment ranging from 3.6% to 3.8%, according to current projections based on cooling inflation, with the official figure to be announced in October 2026. The 3.8% estimate from the Senior Citizens League would translate to approximately $77 more per month for the average retiree, while AARP’s 3.6% projection suggests an increase of about $75 monthly.
The annual COLA is calculated using the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W), which measures inflation across the economy. The estimate reflects recent softening in price pressures: the CPI-W increased 3.5% over the 12 months ending in June 2026, down from 4.2% in May, according to the Bureau of Labor Statistics.
The projected 2027 adjustment would mark an increase from the 2.8% COLA that took effect in January 2026. That 2026 adjustment raised the average monthly benefit by approximately $56, from $2,015 to $2,071. The 2025 COLA was 2.5%, reflecting a broader cooling of inflation after the record 8.7% increase in 2023.
The purpose of the COLA is to ensure that Social Security and Supplemental Security Income benefits maintain their purchasing power as prices rise. For retirees living on fixed incomes, the annual adjustment helps offset the erosion of their benefits’ value caused by inflation, though the adjustment is based on a specific inflation measure that may not perfectly match an individual retiree’s actual spending patterns.
The 3.6% to 3.8% range reflects forecasts from two major tracking sources. Social Security COLA forecast for 2027 ranges from 3.6% to 3.8%, with the variation dependent on how inflation data unfolds over the coming months. The Social Security Administration will announce the final 2027 COLA in mid-October 2026, based on average CPI-W readings for July, August, and September.
Historical context shows significant year-to-year variation in COLA adjustments. After the elevated increases of 2023 and early 2024, the trend has moderated as the Federal Reserve’s interest-rate actions and easing supply-chain pressures have brought inflation closer to its 2% target. A Social Security 2027 adjustment forecast at 3.8%, official announcement Oct. 14 reflects the current consensus among analysts tracking inflation trends.
Sources
- KCRA — confirmed 3.8% COLA estimate and $73.60 monthly increase for average retiree
- Senior Citizens League — 3.8% COLA projection and average benefit increase to $2,011.15
- AARP — 3.6% COLA estimate and $75 monthly increase for average retired worker
- CNBC — inflation cooling to 3.5% year-over-year in June 2026, down from 4.2% in May
- U.S. Bureau of Labor Statistics — CPI-W data showing 3.5% annual increase through June 2026
- Social Security Administration — COLA calculation methodology based on CPI-W and purpose of maintaining purchasing power
- AARP / Social Security history sources — historical COLA data: 2026 at 2.8%, 2025 at 2.5%, 2024 at 3.2%, 2023 at 8.7%
