Employment costs are increasing, up 1.8% in the year to June.

The non-wage component has risen 2%.

That reflects higher costs for annual leave, statutory holidays, superannuation and workplace accident insurance.

Costs associated with medical insurance and low-interest loans are also up.

There has been a 1.7% increase in salary and wage rates, including overtime.

The 3.1% rise in superannuation reflects continued growth in KiwiSaver membership.

Workplace accident insurance costs increased 5.8%.