what is the purpose of a tax treaty
Tax treaty Many countries have entered into tax treaties (also called double tax agreements, or DTAs) with other countries to avoid or mitigate double taxation. Such treaties may cover a range of taxes including income taxes, inheritance taxes, value added taxes, or other taxes.[1] Besides bilateral treaties, multilateral treaties are also in place. For example, European Union (EU) countries are parties to a multilateral agreement with respect to value added taxes under auspices of the EU, while a joint treaty on mutual administrative assistance of the Council of Europe and the Organisation for Economic Co-operation and Development (OECD) is open to all countries. Tax treaties tend to reduce taxes of one treaty country for residents of the other treaty country to reduce double taxation of the same income.
Income tax The US federal government imposed the first personal income tax, on August 5, 1861, to help pay for its war effort in the American Civil War - (3% of all incomes over US$800) (equivalent to $21,800 in 2017).[11][verification needed] This tax was repealed and replaced by another income tax in 1862.[12][verification needed] It was only in 1894 that the first peacetime income tax was passed through the Wilson-Gorman tariff. The rate was 2% on income over $4000 (equivalent to $113,000 in 2017), which meant fewer than 10% of households would pay any. The purpose of the income tax was to make up for revenue that would be lost by tariff reductions.[13] The US Supreme Court ruled the income tax unconstitutional, the 10th amendment forbidding any powers not expressed in the US Constitution, and there being no power to impose any other than a direct tax by apportionment.