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Waterwise Toilet Rebate

Did you know that more than 10% of water used in the average home goes down the toilet? Choosing a more water-efficient toilet can cut your toilet’s water usage by more than half and save you money on your water bill. 

Single flush toilets and early dual flush models are inefficient, using up to 12 litres per flush. By comparison, a new WELS 4-star dual flush toilet uses just 4.5 litres for a full flush and 3 litres for a half flush.

Having a waterwise toilet can save the average household up to 29,000 litres of water per year, that’s equivalent to over 3,200 buckets!  

What does the offer include?

We’re offering a rebate of up to $500 towards the cost of replacing

  • a single flush (one button) toilet, or  
  • a dual flush toilet installed before 1995.
How do I know if my dual flush toilet was installed before 1995?

Dual flush toilets installed before 1995 have four bolts at the base of the pan securing the toilet to the floor. If your toilet has fewer than four bolts, it is not old enough to qualify for the rebate. 

Rebate amounts

Your new toilet(s) must be one of the following: 

  • WELS 4-star or higher water rated toilet ($400 rebate), or 
  • WELS 5-star toilet with an integrated hand basin ($500 rebate) 

A rebate can be claimed for up to 2 toilets per property. Your plumber can recommend the best option for your home. 

How does it work?

You will need to organise the replacement of the old toilet/s with WELS 4 or 5 star rated toilet/s to be in installed by a licensed plumber. Please make sure you take before and after photos for us to check. 

Once a licensed plumber has removed your old toilet and installed your new one/s, please send us your paid tax invoice/receipt and photos. If approved, we’ll credit the rebate to your Water Corporation account.    

Help us flush out inefficient toilets and get in touch with your local waterwise plumber today.  

Who can apply?

This is a limited time offer for toilet purchases and installations completed between 1 July 2026 and 31 May 2027 across WA. The program will close earlier if all 400 rebate allocations are exhausted. If rebates are running low, we’ll add a notice to this page. 

To be eligible for this rebate:  

  • The toilet(s) must be installed at a residential property connected to Water Corporation’s scheme water system.  
  • The toilet(s) must be installed by a licensed plumber, preferably a Waterwise plumber.   
  • The toilet(s) must have a water rating of 4 stars or higher as approved by the WELS (Water Efficiency Labelling and Standards) scheme. 
  • The new toilet(s) must replace existing single flush toilet/s or dual flush toilets that meet the eligibility criteria.  
  • The owner of the property or a property manager must apply for the rebate.  

How do I apply? 

Once a licensed plumber has removed your old toilet and installed your new one, submit an application with: 

1. A copy of the paid itemised receipt or tax invoice showing: 
  • Your property address
  • The purchase of the new toilet
  • Installation by a licensed plumber 
2. Two “before” photos of your existing toilet:
  • A front view photo that captures the full toilet
  • A side view that clearly shows the bolts in the pan
3. One “after” photo of the newly installed toilet. 

Please make sure the floor tiles and surrounding area are visible in the photos. 

Photo of a dual flush toilet installed before 1995Example photo of a dual flush toilet installed before 1995.

Terms and conditions 

Please find terms and conditions here.

Apply now

Frequently asked questions

No. You can purchase and pick up the toilet yourself if you prefer, but it must be installed by a licensed plumber.  

Your plumber will advise you. Common examples of WELS 4-star toilets include: 

  • Posh Solus Square/Round Closed Coupled Toilet Suite
  • Caroma Profile II Close Coupled Bottom Inlet Toilet Suite Standard Seat  
  • American Standard Studio Round Close Coupled Toilet Suite  
  • Raymor Classic Close Coupled SNV Rimless

Yes, however this is not recommended as replacement of cistern only can sometimes lead to poor removal of solid wastes requiring additional flushing.

Yes. If the properties have individual account numbers, we can pay up to two rebates per Water Corporation account. If they are under a common account number, and you have more than two to replace, please email rebates@watercorporation.com.au to discuss an arrangement for your building.

Rebates will be reviewed subject to the terms and conditions of the program. If your rebate is approved, you will receive a credit to your Water Corporation bill account. In exceptional circumstances we may consider alternative arrangements and you must request this by emailing rebates@watercorporation.com.au. Approved rebates will be processed within eight weeks of the application date.

You will receive an email from us advising that your rebate has been successful. Your rebate will then be credited to your account. Please note that your bill does not specifically reference the Waterwise Toilet Rebate. We will contact you in writing to discuss any concerns regarding the rebate.

No, you must be replacing a single-flush toilet. Most toilets you can purchase now are relatively water efficient. 

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