The article presents an analysis of the payment systems of the BRICS countries in order to determine the likelihood and prospects of creating a unified payment system. The main problems hindering this are identified. It is noted that one of the reasons that does not allow us to speak of a high probability of such a payment system being implemented is the impossibility of defining a single payment currency for the BRICS countries. It is pointed out that, for example, China is still interested in maintaining trade relations with the United States and, consequently, does not seek to abandon settlements in US dollars. The information presented by the author of the article about the specifics of the functioning of the payment systems of Brazil, Egypt, Iran, China, and South Africa, as well as the comparative analysis of the payment systems of these countries with Russia’s national payment system, are noteworthy. Based on the analysis, the author concluded that, taking all circumstances into account, it is too early to talk about the possibility of creating a unified BRICS payment system.