Limited companies must keep orderly accounts and, in accordance with the provisions of the Commercial Code, must keep the following compulsory books.
These books must be kept for at least 6 years from the last entry made in them. It is part of the obligations of limited liability companies to observe this period. In addition to these books, companies may, on a voluntary basis, keep and present other types of books and registers, such as the general ledger, which is necessary for the preparation of balance sheets and the trial balance.