Customs Minister Maurice Williamson says it would be virtually impossible to charge GST on items being bought online, an idea currently being explored by government officials.
The Inland Revenue Department and Customs have set up a working group to establish whether 15 per cent GST should be charged on items bought online which cost less than $400. Other countries, including Australian and the United Kingdom, are currently grappling with how to introduce such a system.
It has the support of New Zealand retailers, who say it would create a level playing field with the booming online market, but Williamson could not see how it would work.
"Because I've got a technology background I think ... it's just about going to be impossible to do," he told Radio New Zealand.
"It would be great if we had some easy mechanism to charge it against credit card transactions but that would mean you'd have to identify whether the person was actually in New Zealand at the time.