Employers are generally permitted to deduct certain amounts from employee paychecks. These deductions typically fall into two categories: mandatory and voluntary. Mandatory deductions include taxes (federal, state, and local income tax, Social Security, and Medicare) and court-ordered withholdings like child support or wage garnishments. Voluntary deductions include items like health insurance premiums, retirement contributions, and charitable donations. For example, an employee might see deductions for health insurance and contributions to a 401(k) plan.
Understanding the various permissible payroll deductions is essential for both employers and employees. Accurate calculation and withholding of mandatory deductions ensure compliance with legal requirements and prevent penalties. For employees, understanding their pay stub and the reasons for deductions helps them manage their finances effectively and identify any potential discrepancies. Historically, the practice of withholding income tax originated during World War II as a way to collect taxes more efficiently. This system has evolved to encompass a wider range of deductions over time.