We are a French society who don't collect and not perceive VAT ("TVA non applicable art-293B du CGI", link below). On our Invoices we need to have:

• Same price at duty-free and taxe included
• And at below of commercial proposal and Invoice, this text: "TVA non applicable art-293B du CGI"

How configure OpenERP for it ?

Link (FR): http://[RemoveThis]www.impots.gouv.fr/portal/dgi/public/popup?espId=2&typePage=cpr02&docOid=documentstandard_457 (sorry, karma insufficient for post links)