Our prices for 2025–30

When IPART set our prices for 2025–30, it recognised that we needed to maintain safe, high-quality drinking water and wastewater services while also upgrading ageing pipes and treatment plants, and supporting the delivery of more homes across Greater Sydney.

Most bills include fixed charges for water, wastewater and stormwater services, and usage charges for the water consumed. However, not everyone's bill contains both these types of charges.

• Fixed charges (services)
  Cover the essential costs to maintain and upgrade the vast network of pipes, treatment plants, and infrastructure that ensures safe, reliable water delivery, wastewater removal, and stormwater management for your property. These costs are the same regardless of how much water you use.
• Usage charges (consumption)
  Pay for the quantity of treated water you use. For non-residential properties only, there's an additional usage charge for the amount of wastewater discharged into our wastewater system.

Unlike residential customers, non-residential customers are charged for the amount of wastewater they discharge. This charge appears under usage charges.

We measure the amount of wastewater discharged by non-residential properties using a discharge meter, or estimate it using a discharge factor. Our wastewater charges fact sheet tells you more. Trade wastewater produced at industrial or commercial properties contains pollutants at a concentration higher than the domestic equivalent and have additional requirements. By charging for the measurable impact on the wastewater treatment system, we can ensure that all properties fairly contribute to the network's essential upkeep.

There isn't one price increase across the board. Your total bill depends on a combination of charges that are unique to your circumstances, including individual water usage and the type of property.

• Fixed charges
  Charges for services that your property receives (water, wastewater, and stormwater if applicable). For non-residential properties, they also depend on the size of the meter/s.
• Usage charges
  Charges that go up or down depending on amount of treated water used. For non-residential properties, they include the amount of wastewater discharged.
• Other services
  These may include trade wastewater discharge for non-residential customers.

Under IPART’s determination, all residential properties – houses and apartments – pay the same water and wastewater service charges. However, the stormwater service charge, if applicable, is different for houses and apartments.

Non-residential properties pay water and wastewater service charges based on the size and number of meters on the property. The stormwater service charge, if applicable, is based on property size.

No two bills are the same. You can use IPART's bill calculator to estimate what your new charges may be.

Strata apartments built before 2014 may have shared meters, so your bill won't show your individual water usage charges. Your owners corporation receives the bill for the strata's total water usage.

For the full list of prices, visit residential pricing, business pricing and other prices. It may help to know how to read your bill.

Here's how prices for residential customers have changed.

* Prices will increase by a further 5.1% on average each year, plus inflation, until 2030.

Simple changes around your home or business to help save water can reduce your water usage charges. Take a look at our water saving tips, or find a water saving program. However, saving water won't affect fixed charges.

Cost increases can be challenging, and some customers will feel the impact more than others. If you need help to pay your water bill, we have options that include flexible payment plans. For eligible customers, we can also provide free essential plumbing services and emergency financial help.

We don't set our own prices. After we submit our price proposal, our prices are set by IPART after extensive consideration and public consultation. IPART is an independent tribunal that acts as a market price regulating body. Its job is to ensure prices are fair.

Our new prices, which came into effect on 1 October 2025, are the result of IPART's final regulatory decision for the 2025–30 period. The decision was published on 23 September 2025 and is final until 2030.

The additional revenue from IPART's decision will fund the essential maintenance, infrastructure and new projects required to maintain water, wastewater and other services for the next 5 years.

We submitted a proposal to IPART based on customer priorities, our operational costs and the cost of raw water. IPART reviewed the proposal and opened it for public feedback. Final prices were set only after extensive public consultation.

The process started back in 2022 with a 2-year customer engagement program, Our Water, Our Voice. We spoke to over 13,000 people from all over our area of operations. What we learned, as well as our challenges and requirements, informed the pricing proposal that we presented to IPART in September 2024. Our proposal was based on customer priorities and our costs. IPART reviewed the proposal and opened it for public feedback, which included its Issues Paper, a public hearing and a Draft Report, our response to the Draft Report, and another round of public submissions. IPART released its Final Report and final determination on 23 September 2025.

For IPART, keeping prices fair for all our customers was an important part of the price review. New prices apply all over Greater Sydney.

• If you need help to pay your water bill
  We understand that not everyone's circumstances are the same, and higher prices will be more of a burden for some customers than others. You can access help to pay your water bill. We offer a range of ways to support you.
• If you're a pensioner
  You may be eligible for a pension rebate.

The price review process only happens every 5 years. The next review will start in 2029, with new prices set by IPART to start on 1 July 2030.

Meanwhile, each year (usually on 1 July) we'll adjust charges for inflation based on the Consumer Price Index (CPI) as published by the Australian Bureau of Statistics. This is built into the current determination.

Prices are now set and can't be changed, either by us or by IPART. However, you can lodge a complaint:

• If it's about the price determination process, please contact IPART directly at IPART customer feedback and complaints. IPART can consider your comments before the next 5-year regulatory cycle.
• If it's about how the new prices affect your bill or you think we've made an error, fill out our complaint form, or call 13 20 92 8am–5:30pm Monday to Friday (except public holidays).