Goulburn-Murray Water's annual pricing update has been approved by the Essential Services Commission, on behalf of the Australian Competition and Consumer Commission.
In response to feedback from customers, a Customer Fee and Water Register Fee will be introduced to replace the current Service Fee from July 1 2021.
"We are now approaching the one year mark in our 2020-24 pricing," G-MW Customers and Stakeholders general manager Ann Telford said.
"Through our pricing submission in 2019 and 2020 we worked hard to reduce costs and implemented several important changes to our tariff structure."
Mr Telford said those actions resulted in a reduction in the revenue G-MW required, with savings passed on to customers.
"Most of our customers will already have seen an average of 10 per cent drop on their bills," Ms Telford said.
"Our pricing for this period is based on revenue of $440 million over the four year period - around $65 million lower than the previous four year period.
"This year, it is anticipated that most customers who currently pay for two or more Service Fees will see an overall reduction on their account as a result of the new Customer Fee."
Some customers might experience an increase as a result of the new Water Register Fee, water entitlements would be able to be consolidated, reducing the number of records, and associated fees.
"Customers who only have one service will receive a slight increase in their fixed charges account as a result of the new Customer Fee," Ms Telford said.
"This increase is offset by other price reductions passed on through last year's 2020/21 pricing."
Ahead of the price list coming into effect, customers will receive their 2021/22 fixed charges bills at the end of July to early August.
The recently released 2021/22 price list is available on GMW's website at www.gmwater.com.au/price-list