Almost 4 tonnes of tobacco was abandoned at New Zealand airports since duty free limits were dropped last November.
Nearly 500kg of tobacco products per month were dumped at the border in the first few months of the lower limit being introduced, Customs Minister Nicky Wagner said today.
That figure dropped to just over 250kg in September, she said.
Tobacco duty limits were reduced to 50 cigarettes, or a 50g, from November 1, 2014.
Since then 3.8 tonnes of tobacco products have been dumped in Customs bins at international airports across the country - enough to fill a 20ft shipping container.