What's driving inflation?
Prices rose 3.7% in the year to the Sep 2026 quarter, and 0.7% in the quarter. Each box is part of the household budget, sized by how much we spend on it. Click a box to look inside.
How this is worked out
Price changes are worked out from Stats NZ's published index for each group, subgroup and class: this quarter compared with the same quarter a year earlier.
Points added to inflation are Stats NZ's own published contributions. They add up to the headline rate.
Box sizes are estimates. Stats NZ doesn't publish CPI basket weights as a data file, so each class's share of spending is worked out from its published contribution and index level. Two classes have no published contribution (Domestic accommodation services, Overseas accommodation prepaid in New Zealand), so their size is split from their subgroup.
Release used: Consumers price index, September 2026 quarter.