In a section headed 'nib New Zealand key metrics', the business said its New Zealand premium revenue rose 8.1 per cent, from A$67.5 million to A$72.9 million.
That was due to net policyholder growth of 3.3 per cent and premium increases, nib said.
However more claims were made, rising from A$45.2 million to A$48.3 million.
"Claims expense up 6.9 per cent reflects return to more normal claims experience after a favourable claims experience in 1H14," nib said.
Total management expenses rose from A$21.8 million to A$23.3 million which nib blamed on rising costs including the transition of the business from Tower to nib, the expansion of the insurer's product range and increasing numbers of policy holders.
Total group operations - which include Australia and New Zealand - have also been declared.
Group operating profit of A$42.1 million was declared, up on the previous A$41.4 million. Group net premium revenue was A$802.3 million, up on the previous A$735.4 million.
Australian residents' business operating profit was A$37.5 million (A$34 million). Net profit after tax was A$41.1 million (A$39.6 million), earnings per share were A9.4 cents (A9.0 cents) and interim dividend will be paid of A5.5 cps fully franked (A5.25 cps).
