On November 27, 2017, the Social Security Administration (SSA) announced that it is adjusting the maximum earnings subject to the Social Security tax for 2018 to $128,400. As we have previously posted, the SSA had announced that it would increase the maximum earnings to $128,700. The SSA made the adjustment after receiving a large number of corrected W-2s received in October 2017 by a national payroll provider.

Our previous post has been updated to reflect the change to the cost-of-living adjustment and is reproduced below.