The country's largest insurer says it pays out $14 million methamphetamine claims on residential properties.
Ralph Hart, Insurance Australia Group New Zealand's personal lines underwriting solutions manager, said most claims in tenanted properties were for meth use.
"IAG meth claims tally about $14m per year, with claim numbers varying from 40 to 80 each month," he said of all types of residential properties.
"The majority of claims relate to meth use. Claims are generally spread geographically in line with population and the pattern of these claims is still not clear but average claim cost for meth contamination is approximately $20,000," Hart said.