Income tax in the United States These treaties reduce the chance of double taxation by allowing each country to fully tax its citizens and residents and reducing the amount the other country can tax them. Generally the treaties provide for reduced rates of tax on investment income and limits as to which business income can be taxed. The treaties each define which taxpayers can benefit from the treaty. The United States social insurance system is funded by a tax similar to an income tax. Social Security tax of 6.2% is imposed on wages paid to employees. The tax is imposed on both the employer and the
Citizens for Tax Justice CTJ is generally considered a liberal organization, but its research has also been cited by Republican politicians (including President Ronald Reagan) and right-wing tax reform organizations when favorable to their policies. The organization's 2013 Form 990 Tax Return states its purpose is "to promote social welfare." The organization's president, Wayne Cox, is Executive Director of Minnesota Citizens for Tax Justice. CTJ, a 501(c4) organization, is directed by Robert S. McIntyre. Many of the reports written by Citizens for Tax Justice rely on analyses produced by the "ITEP Microsimulation Tax Model", which is housed at its partner organization, the Institute on