About proforma invoice _ A Proforma invoice is an invoice provided by a supplier in advance of providing the goods or service. A quotation in the form of an invoice prepared by the seller that details items which would appear on a commercial invoice if an order results. It is more of a customs declaration form used in international trade that describes the parties involved in the shipping transaction, the goods being transported, and the value of the goods. It is the primary document to declare value for customs. It is not a true invoice, because the seller does not record a pro forma invoice as an accounts receivable and the buyer does not record a pro forma invoice as an accounts payable.
In order to comply with regulations and ensure that an electronic invoice has the same legal validity as a paper invoice, the corresponding electronic document must contain the same mandatory fields as any other invoice, must be signed with an electronic signature based on a recognized certificate and must be sent from one computer to another with the parties' mutual consent. This combination of factors provides a Telematic Invoice with sufficient reliability so as to indisputably guarantee its integrity and the authenticity of its origin.