The financial account balance, however, was a deficit of $3.3b versus a revised surplus of $5.7b in the prior quarter.
Statistics New Zealand noted that to finance a deficit, the nation normally borrows funds from overseas. However, in the latest quarter there was a net outflow of investment as banks increased their investment assets held overseas - currency and deposits - and financed it with additional funds sources from within New Zealand, rather than by raising funds from overseas, the statistics agency said.
The balance on the capital account was a $683m surplus in the December quarter versus a deficit of $11m in the prior quarter. The surplus was due to a provisional $694m of reinsurance claims from the November 14 Kaikoura earthquakes, Statistics New Zealand said.
New Zealand's net international liability position was $156.5b or 59.9 per cent of GDP as at December 31, from a revised $166.1b or 64.8 per cent of GDP at September 30. This is the lowest international liability position to GDP ratio recorded, the statistics agency said.
The net external debt position - excluding financial derivatives and equity - was $143.5b or 55 per cent of GDP at December 31, down from $149.1b or 58.2 per cent of GDP on September 30.
"Our external debt position narrowed because our external lending increased by $6.3b while our external debt increased by only $649m," Statistics New Zealand said.