Accounting, as a universal information and control system has a long history, widely recognized theoretical achievements and unchallenged practical values is evolving, which indicates development. Further development of accounting, however, depends largely upon trends, opportunities and conditions. Nowadays, to specify a concrete group of entities whose role and importance to the economy of the country is gaining special character, one must look into regulations affecting the financial accounting system at both national and international level. The aim of the study is to identify different accounting regulations developed for the needs of large businesses (IAS, IFRS) along with micro, small and medium-sized enterprises (national regulations, directives). Since, however, the differences in the adopted methods and accounting policies depend not only on the business size, but are characteristic of the country implementing them, the discussion follows from the analysis of the solutions used in Poland and Italy.
Keywords: accounting, national rules, implementation,