The Christmas Cove Dyke of coastal Maine, USA, and regional sources ... by McHone, J. Gregory; Hussey, Arthur M., II; West, David P., Jr.; Bailey, David G. / Atlantic Geology.
Social security and Medicare taxes have different rates and only the social security tax has a wage base limit. The wage base limit is the maximum wage subject to the tax for the year. Determine the amount of withholding for social security and Medicare taxes by multiplying each payment by the employee tax rate. There are no withholding allowances for social security and Medicare taxes.
The Social Security tax (also called OASDI) is subject to a dollar limit, which is adjusted annually for inflation. However, there is no annual dollar limit for the 1.45 percent Medicare tax. Unlike the other FICA taxes, the 0.9 percent Medicare surtax is not withheld unless wages paid to an employee exceed $200,000. Social Security wage cap. For 2013, your obligation to withhold and to pay the Social Security tax for an employee ends once you've paid that employee total wages of $113,700.