How can I set the default tax rate for invoices to "Exclusive of GST"?

Hi Muhs, 

To set the default tax rates for invoices, please follow the steps below: 

• From the Cog Wheel on the top right select Account and Settings
• Go to the Advanced Tap on the left navigation menu
• Within the Accounting Section at the top, click the pencil icon 
• On the Default Tax Rate Selection, click the drop down menu then select the desired tax rate setting, in this case, "Exclusive of GST"

If you have further queries, please let us know.