Hey Mark, I am not registered for GST so that does not make sense.
What I want to change is the tax code of account categories, like the categories you are choosing when you have a new transaction. let's say i did a service ( photography) and they paid me. or i created a invoice for that purpose. Selecting Sales 1 for example does not make sense as i am not registered for gst and sales 1 as a base of MYOB is under GST category. So i created a new category called Service ( I would like to set it up as GNR) but I cannot change the tax setting for this when creating or editing this category. It just assigns it N-T. The same for other things.I created a new category called software. It should be assigned GST as I am paying GST on it. But i cannot. It automatically assigns it N-T and there is no option to change it.