The Prime Minister is refusing to discuss claims that his party will propose to cut GST from fruit and vegetables.
This claim has been made by the National finance spokesperson Nicola Willis.
She says she has material that shows the party intends to announce this policy when it unveils its tax plans.
And she says Finance Minister Grant Robertson fought hard to block this change but he was outvoted.
“Labour’s Cabinet and caucus are massively divided on tax policy," she says.
"The cracks that were exposed after infighting over the failed wealth tax policy are continuing to deepen.
“I understand Labour will soon announce a tax policy of removing GST from fresh fruit and vegetables – despite Grant Robertson raising significant concerns about the idea."
Willis adds that as late as May of this year Robertson appeared to rule out such a policy, saying it wasn’t practical and would mostly benefit supermarkets.
But she says his objections have been overruled by his own party members.
Asked about this claim in Christchurch, Chris Hipkins refused to debate the matter at all.
"National should try to make sure their own promises add up rather than purporting to announce policies on behalf of the Labour Party," he said.
"I am not announcing our tax policy today."
Removing GST from fruit and vegetables has long been supported as a way of supporting low income people as well as encouraging a healthy diet.
But a criticism of it is that it has high administration costs.
And Ranjana Gupta, a senior lecturer in taxation at Auckland University of Technology has suggested it does not significantly improve affordability and healthy eating choices for struggling families.
Hipkins is adamant the matter is academic anyway.
"I haven't announced our tax policy yet so people can speculate all they like.
"I would suggest the National Party focus on making their own numbers add up. They have announced multiple tax policies, and they don't seem to have any idea as to how they would pay for them."
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