when did the irs come into existence and why
Internal Revenue Service The IRS originated with the Commissioner of Internal Revenue, a federal office created in 1862 to assess the nation's first income tax, which was to raise funds for the American Civil War. The temporary measure provided over a fifth of the Union's war expenses and was allowed to expire a decade later. In 1913, the Sixteenth Amendment to the U.S. Constitution was ratified authorizing Congress to impose a tax on income, and the Bureau of Internal Revenue was established. In the 1950s, the agency was renamed the Internal Revenue Service and significantly reorganized. The Tax Reform Act of 1986 modernized the IRS and restructured it along a private sector model.
United Kingdom corporation tax Originally introduced as a classical tax system, in which companies were subject to tax on their profits and companies' shareholders were also liable to income tax on the dividends that they received, the first major amendment to corporation tax saw it move to a dividend imputation system in 1973, under which an individual receiving a dividend became entitled to an income tax credit representing the corporation tax already paid by the company paying the dividend. The classical system was reintroduced in 1999, with the abolition of advance corporation tax and of repayable dividend tax credits. Another change saw the single main rate of tax split into three. Tax competition between jurisdictions reduced the main corporate tax rate from 28% in 2008-2010 to a flat rate of 20% as of April 2015.[7][8]