Gift Aid is a UK tax incentive that enables tax-effective giving by individuals to charities in the United Kingdom. Gift Aid was introduced in the Finance Act 1990 for donations given after 1 October 1990, but was originally limited to cash gifts of £600 or more. This threshold was successively reduced in April 2000 when the policy was substantially revised and the minimum donation limit removed entirely. A similar policy applies to charitable donations by companies that are subject to the UK corporation tax.