The development of international accounting standards and their general acceptance around the world have greatly contributed to the harmonization of financial reporting at the global level. However, a comparative analysis of professional regulations regarding interim financial reporting between the United States, the United Kingdom, Germany and ten Southeast European countries has shown that certain differences still exist, especially between the United States, which applies US generally accepted accounting standards and European continent. The reasons for these differences could be in the traditional orientation of the accounting system itself, but also the fact that each country has its own specifics, which has an impact on the accounting profession.