EN
The author briefly outlines the regulation of non-performance in the Slovak Civil Code and Commercial Code. Having acknowledged the deficiencies of our system differentiating the various types of breach, the paper outlines the salient features of the unitary concept of non-performance adopted by the UNIDROIT Principles of International Commercial Contracts (UPICC), Principles of European Contract Law (PECL) that are based on the United Nations Convention on Contracts for the International Sale of Goods (CISG), and the one is essentially identical to the other. On the basis of this system the author introduces the reform movements in the law of obligations across the Europe that have strongly influenced first drafts and proposals for Slovak reform of non- performance. The discussion on the basic policy questions of these proposals should be the preferred working method on the way forward for Slovak law.