Hi mrco191,
Thanks for breaking down your use case.
Just a quick heads up: the app only gives you the option to choose tax codes across the board if you've got GST reporting turned on. Otherwise, it just automatically sticks with N-T for all transactions and accounts.
If you think it should work differently, it might be worth tossing it up on the Ideas Exchange board for consideration in future updates.
In the meantime, if you need a hand with anything else, feel free to start up a new thread.
If my response has answered your inquiry, please click "Accept as Solution" to assist other users find this information.
Thanks,
Genreve