We are talking about the new VAT management system, called Immediate Supply of Information (SII) and to comply with it, it is necessary to submit invoices, through web services based on XML files, to the Tax Agency (AET) practically in real time. With this regulation, the Government seeks to simplify the management of this tax, to eliminate the obligation to present informative tax assessment forms and, above all, to fight against tax fraud. We will see if the forecasts are fulfilled, but the Treasury’s plans were to collect an extra 700 million euros in VAT in the six months following the entry into force of the SII.