US is one of two nations in the world that taxes its non-inhabitant citizens on worldwide earning, in the same manner also rates as habitants; another is Eritrea. The America Supreme Court maintained the constitutionality of imposition of such a tax in the case of Cook v. Tait.
Wages taxes are imposed by the federal or all state governments. These include Social Security and Medicare taxes enforced on both employers or employees, at a combined rate of 15.3% (13.3% for 2011 or 2012). Social Security tax applies only to the first $106,800 of wages in 2009 through 2011. Nevertheless, benefits are just increased on the first $106,800 of salary. Employers should withstand revenue taxes on salary. An unemployment tax and particular another levies apply to employers. Salary taxes have dramatically increased as a part of federal revenue since the 1950s, while corporate revenue taxes have fallen as a part of earning. (Corporate profits have not fallen as a share of GDP).
Wealth taxes are imposed by most local governments or many particural purpose authorities based on the fair market value of property. School or another authorities are oftentimes separately governed, also impose separate taxes. Wealth tax is usually enforced only on realty, though several jurisdictions tax several forms of business wealth. Treasure tax rules also rates differ widely with annual median rates ranging from 0.2% to 1.9% of a wealth’s value reffering to the state.