Calculating water rates

All invoices are calculated on the number of days in each invoice period, and water used is charged for at a:

• volumetric rate (per cubic metre (1000 litres))
• fixed annual charge per separately used or inhabited part of a rating unit.

See Water and wastewater charges for information about what the current rates are, and Explaining rates for more about our rating system.

There is no 'free' allowance of water in the annual fixed charge, and it applies to each separately used part of a rating unit (ie, a home and a granny flat).

You can estimate your own water use – see Estimating your water costs.