Social security withholding limit

[SweetieJean]

https://www.ssa.gov/news/press/factsheets/colafacts2016.html

[SteamTrain]

...to do the math for a W-2 employee
....for SS withholding on a W-2, its  6.2 % on up-to 118,500, ...and that is $7347
...For W-2 medicare withholding it's 1.45% on everything with no upper limit