I need it to be able to show the price as GST Ex when entering the VPA but then in the total, to have a GST amount, then a total include the GST amount.
AdminAlex Babkov (Admin, Rex Software) commented
GST tends to confuse people - in particular admin staff.
We have in the past supported entry of amounts including and excluding GST which has led to quite frankly terrible results.
To deal with this, we decided to only support entry of amounts including GST with an optional flag to indicate the item is GST free. GST inclusive amounts are how you legally need to advertise everything in any case. It's also significantly easier for a user to do the math to manually add GST to an amount before entry than it is for them to do the math to remove it before entry.