QB Issue Resolution:

In the company settings you can choose the default GST setting for invoices.

Go to tools (cog) > Company Settings > Advanced > Accounting > Default Tax rate Selection.

Select Inclusive of Tax and save.

Resolution for Issue 'how do I make all my sales inclusive of GST automatically?' available: Yes (Solved).
Source: Intuit Community forum.

how do I make all my sales inclusive of GST automatically?: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

Support for GST
Quickbooks Repair Pro will resolve it efficiently and affordably. Guaranteed resolution of your issue, or you pay nothing!

Error Recovery for GST [Canada]
E-Tech is the #1 Quickbooks data migration and Conversion service provider.

Get 50% off Quickbooks Online

Click Here for 50% off!

Additional Support Options: