The Green Party has proposed higher tax rates for high-earning New Zealanders, pushing for salaries of $100,000 or more to be taxed at 37 percent and earnings over $150,000 at 42 percent.
On Tuesday, it was revealed that Labour is not ruling out introducing the additional tax rate for high-income earners, with Finance Minister Grant Robertson avoiding taking a firm position.
"I'm certainly not saying that's our policy. What I'm saying is we will announce our policy in the future... Today's not the day for announcements," he said.
Currently, every dollar earned over $70,000 is taxed at 33 percent - the highest tax bracket.
Comparatively, Australia 's top tax bracket applies to salaries of AU$180,001 and over, with the country's highest earners taxed between 30.05 percent and 45 percent.
The second highest tax rate applies to incomes between $90,001 and $180,000, which are taxed between 23.11 and 30.05 percent. The current tax-free threshold for residents is $18,200. Most Australians are liable to pay a Medicare levy - Australia's publicly-funded healthcare insurance scheme - of 2 percent of taxable income.
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