Social Security Tax: A payroll tax that is used to fund the Social Security program, which provides retirement, disability, and survivor benefits to eligible individuals.
Medicare Tax: A payroll tax that is used to fund the Medicare program, which provides health insurance coverage for individuals aged 65 and older, as well as some younger individuals with disabilities.
Employer-Paid Payroll Tax: The portion of the payroll tax that is paid by the employer, in addition to the employee's contribution.