COVID-19 vaccination greatly reduced the health burden in New Zealand, according to a mathematical model used by the government, but equity needs to be a focus of future vaccination programmes. The model included age- and time-dependent case ascertainment, the effect of antiviral medications, improved hospitalisation rate estimates, and the impact of relaxing control measures. Analyses found that vaccines saved 6650 (95% credible interval [Crl] 4424–10,180) lives, prevented 74,500 (Crl 51,000–115,400) years of life lost and prevented 45,100 (Crl 34,400–55,600) hospitalisations over the period January 2022 to June 2023. Vaccination rates were lower in Māori than people of European ethnicity; results showed that equitable vaccination rates could have prevented an estimated 11%-26% of the 292 Māori COVID-19 deaths recorded over this time period.