Social Security Cola 2024 Increase Percentage Change. The annual adjustment declined sharply last year in tandem with cooling inflation. Starting in january, the estimated average monthly retirement benefit will increase by 3.2%, or $59 a month, for 2024 โ from $1,848 to $1,907.
Experts predict a smaller cola for 2025. On average, social security retirement benefits will increase by more than $50 per month starting in.