Infrastructure Growth Charge (IGC)

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Find out your Infrastructure Growth Charge (IGC)

The infrastructure growth charge (IGC) is a contribution towards the capital investment we have made in bulk infrastructure to provide services to new or existing customers who increase their demand on our services. Through the IGC, the cost of increasing the capacity of our bulk infrastructure is paid for by those who increase demand on the system now, rather than by existing customers or future generations. Without the IGC we would need to recover a greater proportion of our growth-related capital investment costs through our operational charges. This would cost all customers a lot more for their water and wastewater services.

Watch our video to find out more about the IGC and why it's needed.


Still got questions about the IGC? Check out our answers below.

Who does the charge apply to?
When is the IGC applied?
How much is the IGC?
How is the IGC calculated?
Who pays the IGC?
What is a Development Unit Equivalent (DUE)?
What is a baseline?
Do I have to pay an IGC if I've paid a development contribution?
Is the IGC a connection charge?
Can I set up a payment arrangement for an IGC?
Is the IGC refundable?
Once I've paid the IGC, do I have to pay it again?
Will I pay less if I install a rainwater tank?
Will I pay less if I only connect to one network (water or wastewater)?
Will I pay less if I build a residential unit?
Will I pay less if I build a ‘green’ building?
Will I be charged an IGC if I am building infrastructure to vest to Watercare?
When was the IGC introduced?
Why has the IGC changed?
What is bulk infrastructure?
Can I ask for the IGC to be reconsidered?
What are the implications for properties with laundromats?