On October 19, 2017, the Internal Revenue Service announced the 2018 cost-of-living adjusted amounts for certain retirement plan and fringe benefit limitations. Earlier in 2017, the Internal Revenue Service announced the 2018 cost-of-living adjustments affecting health savings accounts and high deductible health plans, and on October 13, 2017, the Social Security Administration announced the 2018 cost-of-living adjustments related to Social Security benefits.
A list of the cost-of-living adjusted amounts that most commonly affect employer-sponsored benefit plans is available here.