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.
Social Security Taxes are based on employee wages. There are two components of social security taxes: OASDI and HI. OASDI (Old-Age, Survivors, and Disability Insurance) and HI (Medicare's Hospital Insurance) program. OASDI has been more commonly be known as Federal Insurance Contributions Act (FICA). HI has more commonly known as Medicare.