Purpose: The aim of the paper is the presentation of the essence of non-financial reporting, the transposition of the Directive into Polish law and, as a result, the extension of mandatory disclosure (including reporting standards). Design/methodology/approach: The article is based on an analysis of literature with the use of analysis method (including the analysis of subject literature, legal acts, reports and studies prepared by various institutions published on the Internet), the descriptive method and graphical data presentation method. Findings: The structure of the study includes the presentation of: the essence of the problem, the scope of mandatory disclosure, standards that may govern its preparation and the initial conclusions resulting from the analyses of reports of companies obliged to report non-financial data. The justification of the need to prepare non-financial reports is provided as the mitigation of information asymmetry that occurs among different stakeholder groups. Non-financial reporting is perceived as a chance to increase knowledge on chances and risks and to analyse and organize the company’s activities. Those types of reports allow to dialogue with stakeholders, build trust and eventually win the competitive advantage. Non-financial reports also form a knowledge database for managers, the use of which increase the effectiveness of management. Originality/value: The analysis, synthesis and systematics of the presented issues (such as the essence, scope and standards of mandatory non-financial reporting) are the value of this article. Its results contribute to further analysis and the result of the analysis should be creation of recommendations for entrepreneurs regarding the choice of non-financial reporting standards, its form and scope.