Overview
Social Security recipients are expected to receive a larger cost-of-living adjustment in 2027, with current forecasts pointing to an increase of 3.5% to 3.6%.
The Senior Citizens League projects a 3.5% COLA, while AARP expects 3.6%. Both estimates would put the adjustment above the 2.8% increase applied to benefits in 2026 and make it the largest annual increase since 2023.
The final figure isn’t available yet. The Social Security Administration will announce the 2027 COLA in October after September inflation data completes the three-month period used in the calculation. The Bureau of Labor Statistics is scheduled to publish its September Consumer Price Index report on Oct. 14.
Current estimates have narrowed considerably as more inflation data has become available. The Senior Citizens League lowered its forecast from 3.6% in August to 3.5% following the latest figures, while AARP’s September estimate remains at 3.6%.
How much Social Security benefits could increase in 2027
A 3.6% COLA would add about $36 per month to a $1,000 benefit and $54 to a $1,500 payment. Someone receiving $2,000 a month would gain around $72, while a $2,500 benefit would rise by about $90.
At $3,000 per month, the increase would be approximately $108. AARP estimates that its projected 3.6% COLA would add roughly $75 to the average retired worker’s monthly benefit.
The Senior Citizens League’s slightly lower 3.5% forecast would add $70 to a $2,000 monthly benefit, taking the payment to $2,070. Its September estimate is 0.7 percentage points above the 2.8% COLA for 2026.
Those calculations remain estimates until the Social Security Administration publishes the official percentage. Individual increases will depend on each recipient’s current benefit amount.
How the 2027 Social Security COLA is calculated
Social Security’s annual COLA is tied to the Consumer Price Index for Urban Wage Earners and Clerical Workers, known as CPI-W. The calculation uses inflation data from July, August and September, comparing the average index level during the third quarter with the same period used for the previous COLA.
That leaves September as the final missing month for the 2027 calculation. August CPI-W was up 3.5% from a year earlier, while July’s annual increase was 3.4%, according to The Senior Citizens League.
The September reading could still move the final adjustment above or below current forecasts. A large change would require inflation to differ enough from recent levels to shift the three-month average.
Social Security’s COLA has varied widely in recent years. The adjustment reached 8.7% in 2023 before falling to 3.2% in 2024, 2.5% in 2025 and 2.8% in 2026. A 3.5% increase for 2027 would therefore be the highest in four years.
Medicare costs could absorb part of the increase
A higher COLA doesn’t automatically translate into an equivalent increase in disposable income for every retiree. Medicare premiums are deducted directly from Social Security payments for many beneficiaries, so higher healthcare costs could absorb part of the additional monthly benefit.
The size of the COLA also matters more for retirees who rely heavily on Social Security and have limited ability to increase their income as prices rise. The adjustment is intended to prevent benefits from losing purchasing power over time rather than provide an increase beyond inflation.
The Senior Citizens League argues that the timing creates another problem for retirees. Benefits don’t rise until the new COLA takes effect, even though households have already been paying higher prices during the months used to calculate it.
