we have one transaction
Dr: expense-medical 105
Cr: bank 105
105 including 100+5%*100=105, 5% is VAT input tax, but not recoverable, since expense-medical is GL account with mandatory tax code field.
so when user using FB50, he need to select tax code P5(5%), input 100 into expense account, so how to configure tax code and let system auto calculate tax
but no tax payable line generated, 5% is not recoverable?