International airlines which do not ensure passengers have the right documents to enter New Zealand face fines under new border rules.
Some 788 passengers have been refused entry at New Zealand airports in the past 12 months. Reasons for being turned away included using false documentation, not having a visa or having criminal convictions.
Immigration New Zealand says it costs about $600, which includes immigration and police supervision, accommodation and the provision of food, to turn passengers around at the border. It can take 12 to 72 hours to process each entry refusal.
Under the new requirement, airlines will be required to check that passengers hold valid documentation, such as an acceptable passport and visa, and ensure they meet New Zealand's entry conditions before they are allowed to board the plane.
Immigration said those entering the country without meeting immigration requirements could also pose "significant cost" with non-bona fide asylum claims, working illegally, people smuggling and costs on the taxpayer-funded health system.