The Social Security cost-of-living adjustment, or COLA, for 2025 is a 2.5% increase. That means the monthly benefits checks for more than 72.5 million Americans will see their lowest annual bump in four years.

Social Security's 2025 cost-of-living adjustment (COLA) took effect in January. Benefits will increase 2.5% this year, the smallest pay bump for seniors since 2021. Indeed, more than half of retired workers surveyed by The Motley Fool in October said the COLA was insufficient.

Social Security recipients will need to wait an extra two months to reach full retirement age starting in 2025. For people born in 1959, the full retirement age will now be 66 years and 10 months. The full retirement age is based on birth year.