Retirement tax

Retirement tax
Some countries with social security systems, which provide income to retired workers, fund those systems with specific dedicated taxes. These often differ from comprehensive income taxes in that they are levied only on specific sources of income, generally wages and salary (in which case they are called payroll taxes). A further difference is that the total amount of the taxes paid by or on behalf of a worker is typically considered in the calculation of the retirement benefits to which that worker is entitled. Examples of retirement taxes include the FICA tax, a payroll tax that is collected from employers and employees in the United States to fund the country's Social Security system; and the National Insurance Contributions (NICs) collected from employers and employees in the United Kingdom to fund the country's national insurance system.