madrid303Modelo 303. IVA. Autoliquidación. Modelo 308. IVA. Régimen Especial del Recargo Equivalencia, artículo 30 bis del Reglamento del IVA y sujetos pasivos ocasional.The distance learning course DL-303E was very well structured and very informative. I’ve been using the Madrid System for over 20 years but I definitely learnt a great amount on the course, in particular the roles of