This is no official Australian localisation yet. However, we will show you how to setup using cartertech’s contribution. The chart of accounts currently includes an item for WET but there is no WET in the tax chart.
1. Download the custom module from github
2. Unzip the downloaded master.zip to /odoo/addons/
3. Navigate to Settings > Module > Update Module List to update module list (remember to logoff and log back in)