The United States is one of two states in the world that taxes its non-inhabitant citizens on worldwide revenue, in the same way also rates as inhabitants; the other is Eritrea. The America Supreme Court established the constitutionality of imposition of like 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 and employees, at a combined rate of 15.3% (13.3% for 2011 and 2012). Social Security tax applies only to the first $106,800 of wages in 2009 thru 2011. None the less, advantages are just accrued on the first $106,800 of salary. Employers must restrained earning taxes on salary. An unemployment tax and particular other gathers apply to employers. Salary taxes have dramatically increased as a share of federal revenue since the 1950s, while venture income taxes have fallen as a share of revenue. (Corporate profits have not fallen as a share of GDP).
Property taxes are enforced by most local governments and many specific goal authorities refer to the fair market value of treasure. School or another authorities are often separately governed, or enforce separate taxes. Wealth tax is generally enforced only on realty, though several jurisdictions tax several forms of business treasure. Wealth tax rules or rates differ widely with yearly median rates ranging from 0.2% to 1.9% of a wealth’s value reffering to the state.