Political Dictionary

Income Tax

Income tax is a tax on earnings or taxable income.

Definition

Income taxes may apply to wages, salaries, business income, investment income, and other sources after deductions and exemptions.

Why It Matters

They are a major source of federal and state revenue.

How It Works

Taxpayers report income, claim allowed deductions and credits, and pay according to tax rates.

History

The modern federal income tax was established after ratification of the Sixteenth Amendment in 1913.

Example

A worker may have federal income tax withheld from each paycheck.

Common Misconceptions

  • All income is taxed at the same rate.
  • The highest bracket applies to every dollar earned.
  • Income tax and payroll tax are identical.