Generally a vendor is responsible for calculating and collecting tax, so having
the software do it for purchase orders doesn't make sense. In some cases you'd
have to know a LOT about the company you are buying from, such as if they have
a nexus where you are located, and so on.
Usually the t
After struggling for the VAT to appear in purchase orders (it works fine
for sales orders), I have find this code in OrderServices.java
// don't charge tax on purchase orders
if ("PURCHASE_ORDER".equals(orderHeader.getString("orderTypeId"))) {
return ServiceUtil.returnSuccess()
