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Finance Minister Grant Robertson. Photo: Gerard O'Brien
Finance Minister Grant Robertson said the April 1 changes are intended to grow the economy and improve the wellbeing of New Zealanders.
Among the measures is the largest ever rise in the minimum wage, which increases by $1.20 to $17.70 an hour.
Superannuation and veterans' pensions will increase by 2.6 percent.
A research and development incentive will provide a 15 percent tax credit to businesses that spend more than $50,000 on research and development from tomorrow.
ACC levies will also fall tomorrow.
Mr Robertson said the government's books were being managed responsibly while the changes were delivered.