As an exception to the provisions of articles L. 123-12 to L. 123-23, natural persons benefiting from the regime defined in article 50-0 of the General Tax Code may not prepare annual accounts. They keep a book showing the amount and origin of the revenue they receive from their professional activity. When their main business is to sell goods, objects, supplies and foodstuffs to be taken away or consumed on the premises, or to provide accommodation, they also keep an annual summary register showing details of their purchases. A decree sets the conditions under which this book and register are kept.