This book examines national reports on contract law in each of the BRICS countries (Brazil, Russia, India, China and South Africa) in order to provide a comparative analysis. It then establishes common principles, where possible, as well as a set of general “soft law” principles governing international commercial contracts in these countries. The importance of commercial transactions in the BRICS countries is rapidly growing, yet differences in contract law among these countries can lead to misunderstandings and disputes. The rapid development of the BRICS instruments (and the legal implications of their use) suggests the need to address common legal issues that could harm the continued development of the BRICS economies. Contract law represents one of the core areas in which this process can take place. Addressing the salient legal issues within the BRICS discourse requires a comprehensive, comparative approach that explores the different solutions provided by each member country, in order to identify similarities and convergences. This process may ultimately help to reduce the legal obstacles to, and indirect costs of, cross-border transactions by offering a transparent and predictable legal environment for any future attempt at adopting common legal instruments.