Legal history of income tax in the United States adopted an income tax modeled on the tax instituted in England. The British theory was that you tax the income from property, and not the property itself; thus, sales of property were not subject to taxation. In order to help pay for its war effort in the American Civil War, the United States government imposed its first personal income tax, on August 5, 1861, as part of the Revenue Act of 1861. Tax rates were 3% on income exceeding $600 and less than $10,000, and 5% on income exceeding $10,000. This tax was repealed and replaced by another income tax
Working Party on the Reorganisation of the Income Tax Act 1976 established initially to oversee the rewrite process, but from 2004 it was also tasked with determining whether there are errors (or "unintended legislative changes") in the rewriting of the Income Tax Acts. The Panel was disestablished in 2014. Its chairs were Colin Blair (1995–2003), Sir Ivor Richardson (2003-08) and David McLay (2008–14). Working Party on the Reorganisation of the Income Tax Act 1976 The Working Party on the Reorganisation of the Income Tax Act 1976 was a committee appointed by the New Zealand government to advise on the appropriate reorganisation of the income tax legislation. The Working Party was set