Cost-of-Living Increase and Other Determinations for 2018

We are republishing the Cost-of-Living Increase and Other Determinations for 2018 with revisions to the average wage index and certain related dollar amounts. Under title II of the Social Security Act (Act), there will be a 2.0 percent cost-of-living increase in Social Security benefits effective December 2017. In addition, the national average wage index for 2016 is $48,642.15. The cost-of-living increase and national average wage index affect other program parameters as described below.