Progressivity in United States income tax

The United States federal income tax is considered to be progressive because rates of tax increase as taxable income increases.
In general, the U.S. income tax is progressive, at least with respect to individuals that earn wage income. The lowest earning workers, especially those with dependents, pay no income taxes as a group and actually get a small subsidy from the federal government because of child credits and the Earned Income Tax ... Full Story »