From Inflation to Benefits: What the CPI Reveals About the 2026 COLA Federal retirees could see a 2.8% COLA boost in 2026—September’s CPI will decide the final increase in benefits. Closing in on 2026 COLA The inflation figures for August are now in. In October, the 2026 cost-of-living adjustment (COLA) will be finalized and announced. The August Consumer Price Index (CPI) report will impact the amount of the 2026 COLA for federal retirees and those receiving Social Security benefits. Tod...