Online Water Accounting System (iWAS)

For all your water accounting needs.

Using iWAS

Our 24/7 online Water Accounting System (iWAS) allows you to easily access and manage your water account anywhere, anytime. iWAS is available to all registered WaterNSW regulated river, unregulated river and groundwater customers.

Login to use iWAS

account or portal icon
Register to use iWAS

account or portal icon
What can you use iWAS for?

licence information line icon
Further assistance

Documents and resources line icon
Login to use iWAS
  1. Go to the login page
  2. Enter your customer number which can be found on your Water Account Statement. 
    Customer number
  3. Enter registration password
  4. Click the 'Log in' button

You must enter the password used for registration and then create a new password. Your password must contain at least six (6) characters and include numerals and letters for enhanced security.

Register to use iWAS
  1. Go to the registration page on our website
  2. Enter your customer number which can be found on your Water Account Statement. 
    Customer number
  3. Enter the activation code (customer reference number on your bill)
    Activation code
  4. Enter the temporary password IWAS00 (zero/zero)
  5. Enter a valid email
  6. Read and tick the terms and conditions box
  7. Click the 'Register' button
  8. An email will be sent to the registered email requesting validation
iWAS allows you to:
  • View your available water and account balance
  • Enter and amend water orders
  • Place bulk water orders
  • Stay on top of important water information with WaterNSW news and announcements
  • View and download the allocation assignment register
  • Create a master account allowing customers to link other customers to their iWAS account
  • Enter meter reads or estimated water take, even if you don’t have a meter installed

Benefits of iWAS

Further assistance

Megalitre converter calculator

When using iWAS, you will need to use megalitres as the unit of measurement for any quantity entered. To assist you in converting different commonly used units of measurements to megalitres, please use our converter tool below.

Megalitres:

Megalitres:

Megalitres:

iWAS benefits

iWAS How-to videos

Please use the arrows below on the right hand side of your screen to scroll through our various how-to videos.

Further assistance

Mail-inbox

Forms, fact sheets, guides

View resources

Forms, fact sheets, guides

Related links

Ordering water

Recording and reporting

Customer assistance

WaterNSW acknowledges the traditional custodians of the lands and waters on which we work and pay our respects to all elders past, present and emerging. Learn more