Invoice header and details with tax different of zero - add VAT to item ?

Hi All,

In our case for local supplier we have tax rate different of zero.

How can we manage this via user interface to add VAT tax to item, being known we installed RMS module with sales tax (see the attachment).

We have no VAT Region, no VAT codes for an item, no VAT Region for a Department in RMS user interface.

Do you have another way to do this in RMS module?  Adding records to VAT_ITEM table is not a solution, it is hard to do maintenance for it.

The purpose of this is to be able to create and to match invoices (header and details) for