National finance spokesperson Paul Goldsmith is not buying into the idea National is 'scaremongering' with the wealth tax attack.

National claims if Labour is re-elected, they will introduce a wealth tax that will burden middle-class Kiwis. The incumbent Government is strongly denying the claims, calling it misinformation.

Mr Goldsmith told Heather du Plessis-Allan the current Government cannot control its spending.

"If it carries on, they will be looking for more tax. The Greens desperately want to introduce taxes and want to talk about it, if they were in a position to form a Government," he says.

"They've [New Zealanders] got a choice - less taxes, or more taxes with Labour and Greens."

Meanwhile, momentum is hard to come by for the National Party as the 2020 General Election nears.

Controversy struck again with an email sent by National's MP for Maungakiekie Denise Lee showing her displeasure at a policy of leader Judith Collins' to review the Auckland Council.

Ms Lee described it as problematic, and it was a bad idea to bypass her as the Auckland Council spokeswoman.

On top of that, the party fell in the most recent Colmar Brunton poll, with the election just five days away.

But Mr Goldsmith was not interested in talking about the issue.

"I'm not particularly interested, I'm focussed on trying to win an election and talk about an economy that's in real strife."

Mr Goldsmith says it has been a challenging year for businesses, organisations and the National Party.

"What I've seen is Judith Collins come through and put a clear choice before New Zealanders."