Breakdown of an IRD defined workforce

As an alternative to the census we can determine someone’s sector of employment from IRD records. This has the advantage of being trackable over time and providing detailed information about income. IRD records do not have any information about a person’s occupation, however. This limits us to defining a workforce based on their industry only. We can use income thresholds to select the less casual elements of a workforce. For example, we may include only those who earn more than $2500 per month in a sector.



Access to the anonymised data used in this study was provided by Statistics New Zealand in accordance with security and confidentiality provisions of the Statistics Act 1975, and secrecy provisions of the Tax Administration Act 1994. The findings are not Official Statistics. The results in this paper are the work of the authors, not Statistics NZ, and have been confidentialised to protect individuals, households, businesses, and other organisations from identification. Read our full disclaimer here.


Defining a workforce

Learn about the methodology we use to identify and define a workforce

Methodology Income threshold IRD Trades