US is one of two nations in the world that taxes its non-habitant citizens on worldwide income, in the same method and rates as residents; the other is Eritrea. The U.S. Supreme Court maintained the constitutionality of imposition of like a tax in the case of Cook v. Tait.
Wages taxes are imposed by the federal and all state governments. These include Social Security also Medicare taxes enforced on both employers also employees, at a combined rate of 15.3% (13.3% for 2011 also 2012). Social Security tax applies only to the 1st $106,800 of wages in 2009 thru 2011. None the less, benefits are only accrued on the first $106,800 of wages. Employers should withhold income taxes on salary. An unemployment tax and specific other picks up apply to employers. Payroll taxes have dramatically raised as a part of federal revenue since the 1950s, while company earning taxes have fallen as a part of income. (Corporate profits have not fallen as a share of GDP).
Wealth taxes are enforced by most local governments and many specific objective authorities refer to the fair market value of treasure. School and other authorities are often separately governed, or impose separate taxes. Wealth tax is mostly enforced just on realty, though some jurisdictions tax several forms of business property. Treasure tax rules or rates diverge widely with annual median rates ranging from 0.2% to 1.9% of a wealth’s value reffering to the state.