The Taxpayers’ Union can reveal that the number of New Zealanders paying the top marginal rate of income tax has grown to 659,000, equivalent to 18.1% of the working population. In 2010, when National last changed rates, there were only 377,000 people (11.2%) paying the top tax rate. Jordan Williams, Executive Director of the Taxpayers’ Union, says, “Under Bill English, the number of people paying the highest tax rate has increased by 75%. The failure to adjust tax thresholds with inflation or average wage growth has meant that Kiwis are being asked to pay higher tax rates without any increase…