To edit taxes at the department level, follow these simple steps:

1. Navigate to ‘Price Book’, select ‘Items’ and then select ‘Departments’
2. Locate the department in the list and check the taxes column to see if GST/HST is applied
3. Select the department you want to adjust in the ‘Name’ column
4. In the additional options section, find the taxes setting
5. In the dropdown menu you can choose which tax option you want
6. Toggle the taxes switch to turn GST (or the current tax level) on or off as needed
7. Save your changes