US is one of two nations in the world that taxes its non-resident citizens on worldwide income, in the same way or rates as habitants; the other is Eritrea. The U.S. Supreme Court upheld the constitutionality of imposition of such a tax in the case of Cook v. Tait.
Payroll taxes are enforced by the federal or all state governments. These include Social Security or Medicare taxes enforced on both employers also 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. However, advantages are only accrued on the first $106,800 of salary. Employers must withstand earning taxes on salary. An unemployment tax and specific another gathers apply to employers. Wage taxes have dramatically increased as a share of federal revenue since the 1950s, while venture income taxes have fallen as a part of revenue. (Company profits have not fallen as a part of GDP).
Wealth taxes are imposed by most local governments or many special goal authorities based on the fair market value of wealth. School and another authorities are often separately governed, and enforce separate taxes. Property tax is usually imposed just on realty, though some jurisdictions tax several forms of business wealth. Treasure tax rules or rates diverge widely with yearly median rates ranging from 0.2% to 1.9% of a treasure’s value basing on the state.