More rubbish is being dumped at landfills and less material is being recycled despite the introduction of a fee on household waste, a government report has found.
Introduced in 2009, the levy requires landfill operators to pay $10 per tonne for rubbish dumped on their sites.
However, only 11 percent of New Zealand's more than 400 landfills pay the levy.
The report, released on Monday, says 16.4 percent more rubbish has been sent to tips since the levy was last reviewed in 2014 and 6.3 percent less rubbish has been diverted from landfills for recycling.
It has raised $192 million that has gone into programmes to reduce waste.