The U.S. federal and most state income tax systems tax the worldwide income of citizens and residents. A federal foreign tax credit is granted for foreign income taxes. Individuals residing abroad may also claim the foreign earned income exclusion. Individuals may be a citizen or resident of the United States but not a resident of a state. Many states grant a similar credit for taxes paid to other states. These credits are generally limited to the amount of tax on income from foreign (or other state) sources.