Draft Report - Review of prices for the Water Administration Ministerial Corporation from 1 October 2025 to 30 June 2028 - June 2025

IPART has completed its review and has set the maximum prices WAMC can charge customers to provide water planning, management and regulation services. The prices will apply from 1 October 2025 for 4 years. See our Final Report.

We published our Draft Report 

We published our Draft Report on 3 June 2025. Our Draft Report set out our draft decisions and recommendations on WAMC’s prices.

Under our draft decisions, increases in WAMC’s water management component charges would be limited to an average of 5% per year (i.e. 7.7% in year 1, 5% in year 2 and 5% in year 3) or 15.8% over the three years to 2027-28 (before inflation).

For customers on the Minimum Annual Charge (MAC), the increase in WAMC’s water management component would be limited to an average of 2.5% per year (i.e. 4.1% in year 1, 2.5% in year 2 and 2.5% in year 3) or 7.7% over the three years to 2027-28 (before inflation).

We thank all stakeholders for their input

We sought feedback from stakeholders on our draft decisions between 3 June and 1 July 2025. We thank all stakeholders for their input during this period. We considered all submissions and feedback made to our Draft Report in preparing our Final Report.