Anna Dyhdalewicz
pages: 29-39, JEL classification: M41, Key words: costs, trade companies in the IT branch, annual reports, cost-determining factors, Abstract: The paper presents the results of a research study, whose focal issue was the extent of disclosure in annual reports of costs of trade enterprises on the example of IT companies listed on the Warsaw Stock Exchange. Due to its limited scope, this study should be treated as a pilot, constituting the introduction to further and more detailed research and analyses, which ultimately will include all companies listed on the WSE within the Polish Classification of Activities (PKD) wholesale and retail trade, and car repair. The aim of the study is to evaluate the usefulness of the annual report as a source of information about the costs of a trading company. Information on costs in annual reports results from informational obligations defined by current regulations of law, environmental needs, as well as each economic entity\'s individual approach to the presentation of financial information in financial reports and to disclosure of additional information (qualitative and financial) in explanatory notes and in an activity report. It should also be noted that the presentation in the same costs group of different specific items proves that factors influencing the amount and structure of costs in a given period in particular entities conducting trading activity in the same sector have various significance for the results.