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Cash Rebates For Water Savers!

Last Updated Nov 23, 2010 · Written by Craig Gibson

The National Rebate

The National Rainwater and Greywater Initiative provides households with a rebate of up to $500 on the purchase and installation of a rainwater tank or permanent greywater treatment system. The system needs to have been purchased after 30 January 2009 and you must apply for the rebate within six months of purchasing your system. If you are claiming for a rainwater tank, it must be plumbed in by a professional for the internal use of the water for toilet and/or laundry purposes. The rebate is planned to be in effect until March 2014

Who Can Apply?

If you own an existing home (i.e. not in the process of building a new one) and it is your principal place of residence, you may apply for the rebate after you have installed an eligible greywater system. You should be aware that system suppliers and tradespeople are unable to apply for the rebate on your behalf.

What Can You Claim?

For this Australian Government rebate program, the rebates offered following the installation of approved rainwater tanks are:

Rainwater tank(s) 2,000 - 3,999 litres $400
Rainwater tank(s) 4,000 litres or larger $500
Permanent greywater treatment system $500

Extra Rebates From Other Sources

State governments and/or Local Government bodies recognise the importance of collecting and saving water, and many have introduced their own rebate schemes which you can normally claim for on top of the National Rainwater and Greywater Initiative.  You may be eligible to receive rebates from at the national, state and local government levels. For details check your relevant government authority.


The NSW Department of Environment and Climate Change offers:

A Water Tank Rebate as outlined below:

Tank(s) capacity Tank Rebate Connection to toilet(s) Connection to washing machine(s) Maximum total
2000-3999 litres $150 $500 $500 $1150
4000-6999 litres $400 $500 $500 $1400
7000 litres and above $500 $500 $500 $1500


The rebate is based on the size of the tank and whether it is plumbed into your toilet or washing machine.

Tank Rebate Rebate Description
$800 Purchase a new rainwater tank and plumb it into an eligible home
$600 Plumbing into 1 eligible fixture type (to plumb an existing rainwater tank into an eligible home)
$200 Add an additional rainwater tank or replacement rainwater tank that is already plumbed to their existing system
$200 New plumbing by a licensed plumber to supply rainwater to two or more different types of eligible fixtures, and/or an eligible seamless automatic switching device


Tank Rebate Rebate Description
$600 Purchase and installation of new water tanks for home use, and is available for one rainwater tank per household
$50 Install a tank that has a capacity greater than 600 litres that is not plumbed in
$600 or 50 per cent of the purchase and plumbing-in cost Tanks of over 2,000 litres capacity (only if they are installed for use in your toilet and/or washing machine by a licensed plumber)


Rainwater tank and rainwater tank to toilet connection A household rainwater tank collects rainwater for use inside or outside your home.

Tank Rebate Rebate Description
$150 Tank 600 litres or greater. An additional $150 for toilet connection.
$1000 Large rainwater tank 4000+ litres connected to toilet and laundry
$900 Large rainwater tank 4000+ litres connected to toilet or laundry
$500 Large rainwater tank 2000-3999 litres connected to toilet and/or laundry
$500 A greywater permanent tank system recycles waste water from laundries and bathrooms for use on the garden or in the toilet


The Queensland government rebate scheme was closed in December 2008.


This rebate sceme ended in June 2009.


The Northern Territory Government, in partnership with Power and Water Corporation, is providing increased rebates of up to $150 for certain water saving products and up to $500 for eligible water saving plumbing services in Alice Springs and Tennant Creek services performed by a GreenPlumber®.

To apply for the Outdoor Plumbing Rebate you need to undertake a Home Water Audit. The Home Water Audit will help you to determine the cheapest and easiest way to save water at home; help you to identify what rainwater or greywater technology may be suitable for your home and encourage you to think about any risks associated with the technology.

These updated rebates are available for a limited time until funds run out.

Tank Rebate Rebate Description
$500 Connecting a rainwater tank to a household hot water system, toilet, washing machine or air-conditioner. Minimum tank size eligibility is 1000L
$500 Plumbing services associated with installing an NT Government approved greywater diversion device

Enquire About Installing a Rainwater Tank

Find your local rainwater tank suppliers and contact them about rebates and installing your rainwater tank today.


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NSW Department of Environment and Climate Change

List of NT approved greywater diversion devices

SA Water

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