The employer's Social Security tax rate for 2014 is 6.2% of each employee's first $117,000 of wages, salaries, etc. If an employee has wages, salaries, etc. that are greater than $117,000, the amount in excess of $117,000 is not subject to the Social Security tax. Hence, the maximum amount of the employer's Social Security tax for each employee in 2014 is $7,254 (6.2% X $117,000).

The employer's Social Security tax is in addition to the employee's Social Security tax.

In addition to the employer's Social Security tax, there is also an employer's Medicare tax of 1.45%. The Medicare tax applies to every dollar of every employee's wages, salaries, etc. In other words, there is no wage limit or cap for the employer's Medicare tax.