Labour says it will tackle "aggressive tax avoidance" by multinationals such as Facebook and Google which it says is costing the taxman hundreds of millions of dollars each year.
But while Revenue Minister Todd McClay says rules for foreign firms are being tightened, New Zealand should take the lead from the international community on the matter.
Digital giants such as Google, Apple and Facebook have borne the brunt of international criticism of the way many multinational companies structure their affairs to legally minimise their tax bills.
Local concerns were fuelled last year when iPhone and iPad maker and iTunes owner Apple reported paying just $2.5 million on $571 million worth of New Zealand sales in 2012. Google and Amazon's tax bills were also tiny in comparison with their reported sales here.