The United States is one of two states in the world that taxes its non-inhabitant citizens on worldwide revenue, in the same way and rates as habitants; the other is Eritrea. The U.S.A. Supreme Court established the constitutionality of imposition of such a tax in the case of Cook v. Tait.
Wages taxes are enforced by the federal and all state governments. These inclusive Social Security also Medicare taxes imposed on both employers or employees, at a conjointed rate of 15.3% (13.3% for 2011 also 2012). Social Security tax applies only to the first $106,800 of wages in 2009 thru 2011. Nevertheless, benefits are only accrued on the first $106,800 of wages. Employers should withhold earning taxes on salary. An unemployment tax and specific other picks up apply to employers. Salary taxes have dramatically increased as a share of federal revenue since the 1950s, while company revenue taxes have fallen as a part of earning. (Corporate profits have not fallen as a share of GDP).
Property taxes are enforced by most local governments and many particural objective authorities based on the fair market value of property. School or other authorities are often separately governed, also impose separate taxes. Wealth tax is mostly enforced only on realty, though several jurisdictions tax some forms of business treasure. Property tax rules and rates vary widely with annual median rates ranging from 0.2% to 1.9% of a wealth’s value basing on the state.