Income tax in the United States income taxes. This foreign tax credit is limited to that part of current year tax caused by foreign source income. Determining such part involves determining the source of income and allocating and apportioning deductions to that income. States tax resident individuals and corporations on their worldwide income, but few allow a credit for foreign taxes. In addition, Federal income tax may be imposed on non-resident non-citizens, including corporations, on U.S. source income. Federal tax applies to interest, dividends, royalties, and certain other income of nonresident aliens and foreign corporations at a flat rate of 30%. This rate is often reduced
Income tax in the United States localities impose an income tax at a graduated rate, and some at a flat rate on all taxable income. Federal tax rates in 2013 varied from 10% to 39.6%. Individuals are eligible for a reduced rate of federal income tax on capital gains and qualifying dividends. The tax rate and some deductions are different for individuals depending on filing status. Married individuals may compute tax as a couple or separately. Single individuals may be eligible for reduced tax rates if they are head of a household in which they live with a dependent. Taxable income is defined in a comprehensive