Sunita Somvanshi
The 2027 Social Security Cost-of-Living Adjustment (COLA) will not be official until October 2026, though early forecasts suggest a modest increase following 2026’s 2.8% adjustment. Retirees planning their next-year budgets should understand the timeline and how the calculation works.
The Social Security Administration announces the annual COLA based on the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W). The Bureau of Labor Statistics publishes monthly CPI data according to a preset schedule. As of August 25, 2026, the July CPI report has been released. The August report is scheduled for release on September 11, 2026.
The COLA calculation compares the average CPI-W for July, August, and September of the current year against the same three-month average from the prior year. If the current-year average is higher, the difference becomes the COLA percentage. If it is lower or unchanged, the COLA defaults to zero (no decrease is possible under current law). a delay strategy that can buy retirees more safety
Based on third-quarter 2026 CPI trends, the Senior Citizens League and other forecasters currently predict 2027 COLA will range between 3.5% and 3.6%—higher than 2026’s 2.8% but lower than 2025’s 3.2%. The official announcement will occur on October 12, 2026.
Beneficiaries should know the payment schedule as well. Supplemental Security Income (SSI) payments increase effective December 31, 2026. Retirement benefits increase effective January 2027, distributed on staggered Wednesdays depending on birth date. The income thresholds that trigger taxation on Social Security benefits—$25,000 for single filers and $32,000 for married couples—were established under the Social Security Amendments of 1983 and remain unchanged, meaning more retirees encounter this bracket each year as nominal incomes rise. a flawed inflation measure that may cost retirees
Medicare Part B premiums follow a separate adjustment mechanism called the “Hold Harmless” rule, which prevents most Social Security beneficiaries’ Medicare costs from rising faster than their COLA increase. This protection does not apply to newly eligible beneficiaries or those without Social Security income.
Early planning during the August-October window allows retirees to anticipate benefit increases and adjust spending or savings strategies accordingly. pension-fund scrutiny
