Work visas issued climbed by 4,600 to 35,900, with people from the UK the biggest single source at 6,100. Overall, India contributed most to gain in migrant arrivals, at 12,700 in the year, followed by 8,400 from China, 4,500 from the Philippines and 3,800 from the UK.
The decline in migrant departures was mainly due to fewer Kiwis leaving for Australia. Departures of New Zealand citizens to Australia fell 16 percent to 21,600 in the August 2015 year, helping trim the net loss to just 500, the lowest level since 1991. The net outflow to Australia peaked at 40,000 in the August 2012 year.
The surge in migration has been a key counterfactual for the Reserve Bank, which cut the official cash rate a quarter point to 2.75 percent and signalled another cut of that size.
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NZ net migration reaches new annual record in June
Migrants for regions
The arrival of migrants has stoked demand, particularly in Auckland, where the overheated property market is seen by the bank as a threat to financial stability.
In the monetary policy statement this month, the bank said it expects migration to begin to soften, although this year the inflow has surpassed its expectations.
Auckland was the biggest recipient of migrants in the latest year, at 27,900, followed by Canterbury on 6,700 and Waikato at 2,300. Half of all migrants to state an address on their arrival card were moving to the Auckland region.
New Zealand welcomed a record 3.02 million short-term visitors in the August 2015 year, up 8 percent from the August 2014 year. Of that, 1.29 million were from Australia, 320,400 from China, and 236,300 from the US, contributing a combined 61 percent of the total.
New Zealand residents also broke records in the August year, departing for a record 2.36 million overseas trips, up 6 percent from the same period a year earlier.
Seasonally adjusted, permanent and long-term net migration was 5,500 in the month of August, down from the record 5,700 in July. A seasonally adjusted net gain of 200 migrants from Australia last month was the highest level since March 1991.