Taxes in New Zealand are collected at a national level by the Inland Revenue Department (IRD) on behalf of the Government of New Zealand. National taxes are levied on personal and business income, and on the supply of goods and services. Capital gains tax applies in limited situations, such as the sale of some rental properties within 10 years of purchase. Some "gains" such as profits on the sale of patent rights are deemed to be income – income tax does apply to property transactions in certain circumstances, particularly speculation. There are currently no land taxes, but local property taxes (rates) are managed and collected by local authorities. Some goods and services carry a specific tax, referred to as an excise or a duty, such as alcohol excise or gaming duty. These are collected by a range of government agencies such as the New Zealand Customs Service. There is no social security (payroll) tax. New Zealand went through a major program of tax reform in the 1980s. The top marginal rate of income tax was reduced from 66% to 33% (changed to 39% in April 2000, 38% in April 2009 and 33% on 1 October 2010) and corporate income tax rate from 48% to 28% (changed to 30% in 2008 and to 28% on 1 October 2010). Goods and services tax was introduced, initially at a rate of 10% (then 12.5% and now 15%, as of 1 October 2010). Land taxes were abolished in 1992. Tax reform continues in New Zealand. Issues include: business taxes and the effect on productivity and competitiveness of NZ companies differences in the treatment of various types of investment income international tax rules Individual income tax New Zealand residents are liable for tax on their worldwide taxable income. History Income tax was introduced in New Zealand by the Liberal Government in 1891. The tax did not apply to individuals with income less than £300 per annum, which exempted most of the population, and the top rate was 5%. Most government revenue came from customs, land, death and stamp duties. The top rate rose to 6.67% by 1914. During World War I, revenue from income tax increased greatly, becoming the largest source of tax, in place of customs duties. But, still only 12,000 people of an adult population of 700,000 earned above the £300 threshold and were taxed. The top rate was 43.75% in 1921. Tax