The biggest Māori business network doubts a capital gains tax would have an immediate impact on Māori industries because they're typically not sold on.
The levy forms part of Labour's economic policy being launched on Thursday.
It would be broad enough to cover the sale of businesses, shares and individual assets, as well as investment properties.
The Federation of Māori Authorities says Māori primary industries, such as agriculture and horticulture, are generally
But Federation chairperson Tracey Houpapa says any capital gains tax would have property investors looking at their business plan.
She says some Māori authorities have property investment strategies and any capital gains tax would need to be a serious consideration in their business planning and investment strategies.