The rapid development of technologies for collecting and analyzing big data, including those characterizing trade, is currently taking place. This data, with a high degree of detail, takes into account the whole variety of consumer decisions, which allows them to develop key management proposals on what, where and when to produce and sell. Banks, retail chains, and the state are actively interested in these data. At the same time, individual small and medium-sized enterprises weak use of big data in their activities. The purpose of this study is to highlight the problems and prospects for their application for management purposes, based on an analysis of the current practice of using high-frequency retail data. As a result of the study, the features of the available data of retail companies, payment systems and OFDs, which are manifested in their different structure and limitations for use in the development of management decisions, are highlighted. It is shown that big data characterizing retail trade is available to a narrow circle of people who, as a rule, have their own interests, which are not yet consistent with the idea of open publication of these data, even for scientific purposes. There are very few research publications based on high-frequency fiscal data. Such closeness of data does not create prerequisites for the active development of skills in working with them in most enterprises and organizations, which determines the weak use of microdata for management purposes.