Annual inflation reached 4.1% in the June 2026 quarter, and transport did much of the lifting. Petrol rose 27.5% over the year and other vehicle fuels rose 71.0%. A household with no car sidestepped most of that direct increase, while a two-car commuting household met it repeatedly.
That does not make the national figure wrong. It makes it an average assembled from price movements that reach households through very different routes.
The unavoidable pressures were elsewhere
Electricity climbed 12.0% and household gas 10.9%, so households insulated from fuel could still face a sizeable increase through their power bills. Property rates rose 8.3% and owner-occupied housing costs 2.7%, concentrating a different set of pressures on homeowners.
Rent rose 0.5% over the year. For many renters, their largest single expense was therefore much calmer than the headline rate, even though groceries, energy and transport could pull their overall experience back up.
Official household measures tell the same broader story
Stats NZ's Household living-costs price indexes ranged from 1.9% for the highest-spending fifth of households to 4.5% for superannuitant households. The 2.6 percentage point spread reflects different baskets and the HLPIs' inclusion of interest payments, not measurement failure.
Falling interest payments continued to cushion mortgaged households, but less than they had three months earlier. Superannuitant households, which are less exposed to that channel, received less of the relief while facing increases in other essentials.
The useful question comes after the headline
The 4.1% number is the right answer to a national-basket question. It is not automatically the right answer to a household-budget question. To understand the practical effect, ask which prices changed, how much of a household's spending they represent, and whether the measure includes the costs that matter to the question.
That distinction is the point of My Inflation's calculator and household-group reporting: not to replace official measures, but to show how the same economic release can describe materially different experiences.