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Cuthbertson said CA ANZ is urging the Government to address this because it is one of the easier ways in which the Government could increase its annual tax haul.
He said that rather than putting pressure on other areas and looking to alter existing laws, the Government should first look into ensuring it gets the full amount due in a given tax year.
"This should be the first cab off the rank," he said.
Cuthbertson said the shadow economy's potential tax gap is equivalent to the Government's annual commitment to the Provincial Growth Fund, which will invest in regional development.
He also pointed to the Government's previous success in this space, saying that the additional $83 million in funding given to the IRD since 2010 to combat the shadow economy has delivered results.
"Inland Revenue uncovered $159 million in tax in the 2016 year alone and significant amounts in all years since 2010," Cuthbertson said.
Cuthbertson added that work needed to be done in changing Kiwi attitudes to tax evasion.
"Under-reported income, manipulating your expenses and slipping a tradesman some bank notes, is not okay," he said.
"It's not a victimless crime. There's a cost to this behaviour and that cost is less money for health and education, social housing and the huge range of government services in need of more money."
Cuthbertson said that various international markets have successfully managed to increase tax collection by educating taxpayers, making compliance simpler, reducing opportunities, increasing detection and reinforcing social norms.
He said these steps should come well before the Government puts pressure on other areas of taxation.