Cost-of-Living Adjustment

Below we have a table depicting the Federal Retiree COLA history from 1999 through 2018. Cost of Living increases are measured by the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W). Social Security and Supplemental Security Income (SSI) benefits are adjusted to reflect any increase in the cost of living. The cost-of-living adjustment protects the purchasing power of Social Security and SSI benefits.