New Zealand business groups say they are disappointed a trans-Tasman report by productivity commissions did not recommend scrapping the double taxation of firms operating on both sides of the Tasman.
Lobby groups Business New Zealand, the Employers and Manufacturers Association and the Bankers Association expressed their disappointment that the the body has left it to the two Governments to decide.
They argue it's a long standing issue that distorts investment decisions.
The Employers and Manufacturers Association went further, saying the current system threatens New Zealand's ability to build and retain large, global companies headquartered here, with the risk being these firms will move to Australia.
But the chair of New Zealand's commission Murray Sherwin says it been a slippery little devil to tie down.
"There is a net gain to be had there - the issue is just how does it get distributed?" he said.
"We've taken it as far as we can. It really now is whether there is a political will and a technical means to nail this thing".