US is one of two states in the world that taxes its non-resident citizens on worldwide income, in the same way and rates as inhabitants; another is Eritrea. The U.S.A. Supreme Court established the constitutionality of imposition of such a tax in the case of Cook v. Tait.
Payroll taxes are imposed by the federal or all state governments. These include Social Security also Medicare taxes imposed 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 thru 2011. However, benefits are only accrued on the first $106,800 of wages. Employers must withhold income taxes on salary. An unemployment tax or particular other picks up apply to employers. Payroll taxes have dramatically increased as a share of federal earning since the 1950s, while corporate earning taxes have fallen as a share of revenue. (Venture profits have not fallen as a share of GDP).
Treasure taxes are enforced by most local governments also many particural aim authorities refer to the fair market value of wealth. School or other authorities are often separately governed, also enforce separate taxes. Treasure tax is usually imposed only on realty, though several jurisdictions tax several forms of business treasure. Property tax rules and rates vary widely with yearly median rates ranging from 0.2% to 1.9% of a wealth’s value basing on the state.