ACT leader David Seymour wants to convince his coalition partners to flatten the tax system in this year's Budget, arguing everyone can be better off.
The Party is proposing to scrap the lowest tax threshold, reduce the highest rates, and give lower-and-middle income earners a tax credit.
The Finance Minister Nicola Willis has asked Treasury to look at whether aspects of ACT's plan can be incorporated.
New Zealand Council of Trade Union's chief economist Craig Renney spoke to Corin Dann.
