Alkaline phosphatase is one kind enzyme found in your body. Enzymes are proteins that help chemical reactions happen. For instance, they can break big molecules down into smaller parts, or they can help smaller molecules join together to form bigger structures.
Social Security is financed by a 12.4 percent tax on wages up to the annual threshold, with half (6.2 percent) paid by workers and the other half paid by employers. This taxable wage base usually goes up each yearâit rose from $117,000 in 2014 to $118,500 in 2015.
A: The Social Security tax rate is 12.4% as of 2015. Of that amount, the employee is responsible for half, or 6.2%, and the employer pays the other half. The Social Security tax, along with the Medicare tax, is classified as a payroll tax. The government deducts these taxes directly from an employee's paycheck.