Equity Index (EQI) is a way the Ministry of Education uses to calculate equity funding for schools in New Zealand. It replaced the socioeconomic decile system, which was phased out from January 2023.^[1][2]

In September 2019 the Sixth Labour Government announced the decile system would be replaced by a new "Equity Index" which would come into effect as early as 2021.^[3]

In mid-May 2022, the 2022 New Zealand budget allocated $8 million for the capital cost and $293 million for operating costs for the new Equity Index, but no date of introduction was given.^[4]

In July 2022, their Equity Index rating numbers were advised to New Zealand (state and state-integrated) schools to be introduced in 2023. The Statistics Department utilised 37 socio-economic factors for each pupil, including both parents' educational levels, imprisonment data and benefit history plus Oranga Tamariki notifications and student transience to calculate a school index number between 344 and 569 for each school, with a national average of 463 and a higher index number meaning more EQI index funding. The New Zealand educational system was claimed to be "one of the world's least equal education systems" (actually 33 out of 38 in the OECD).^[5][6]

• Child poverty in New Zealand
• Social class in New Zealand
• Socioeconomic decile