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As we transition to our new site, you'll still find some Stats NZ information here on this archive site.

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Consumers price index (inflation)

The consumers price index (CPI) gives you information about changes to the prices of consumer items New Zealand households buy, and provides a measure of household inflation.

You can find out about price changes for 11 CPI groups: food, housing and household utilities, health, recreation and culture, education, communication, clothing and footwear, transport, alcoholic beverages and tobacco, household contents and services, and miscellaneous goods and services.

Latest news

Measuring price change for consumer electronics using scanner data
From the September 2014 quarter, we incorporated retail transaction data, or ‘scanner data’, into the CPI, to measure price change for consumer electronics categories. This publication describes the methodology we introduced for creating price indexes for these categories.

CPI tradables and non-tradables visualisation tool 
This new tool will help you explore the changes in the prices and relative importance of the goods and services in the CPI basket, broken down by tradables and non-tradables. This tool is in addition to our existing CPI visualisation tool.

The CPI tradables and non-tradables breakdown is now also available in Infoshare.

Decision on 2013 CPI Advisory Committee recommendations (published August 2014)
Reports decisions in progress on implementing the committee's recommendations.

Information releases

Explore our latest CPI statistics.

Consumers Price Index – information releases 
Information on how prices for goods and services purchased by private New Zealand households have changed. Published each quarter.


Analyse the numbers.

Select the following categories from the Infoshare home page to find CPI time-series data:
Subject: Economic indicators
Group: Consumers Price Index

Find out more about Infoshare.

Reports and articles

Explore information we've gathered from research and analysis.

Consumers price index review: 2014 (published 2014)
An update of items in the representative basket of goods and services, and their relative importance.

100 years of CPI (published 2014)
A collection of resources published to mark the 100th anniversary of the CPI, including two interactive visualisations.

Historical CPI information (published 2014)
Includes some digitised material dating back to the early 1900s, to mark the 100-year anniversary of CPI. 

CPI Advisory Committee 2013 (published 2012–13)
Links to a page with the 2013 committee's report and related documents.

Consumers price index review: 2011 (published 2011)
Details of the 2011 review of the CPI basket.

Information about the data

Get technical information such as classifications used, survey design, or a glossary of statistical terms.

DataInfo+ allows you to search and browse for information about our statistical activities and data. Find information about the concepts, population, variables, and classifications used in the CPI.

CPI sources and methods
Find articles about the data sources and methods we use to compile the CPI – for the different goods and services in the basket.

Analytical retrospective superlative index based on New Zealand’s CPI: 2014 (published 2015)
Find results of a review that involved reselecting and reweighting the basket of representative goods and services, and analysis of how the CPI would have tracked had the index not been reweighted, or if only some reweights had occurred since 2002. 


Get help to interpret and use our data.

Consumers price index – animation and infographic
Find out how the CPI can affect your household with our new animated infographic

CPI visualisation tools
Use these tools to explore the changes in the price and relative importance of the goods and services in the CPI basket:

CPI visualisation tool

CPI tradables and non-tradables visualisation tool

Price indexes
Find out about the different price indexes we publish.

Statistics NZ clarifies impact of GST on CPI (published 2010)
Find information about how a change in GST affects prices in the CPI.

Page updated 6 July 2017

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