Abstract. SMEs constitute a significant part of the economy of many countries, including Ukraine, and their digitalization can significantly affect economic growth. The formulation of the problem takes into account both theoretical and practical aspects, since they are interconnected in solving the task of increasing the effectiveness of digital transformations in the SME sector. The article states that the problem lies in the insufficient effectiveness of using digital platforms by small and medium-sized businesses (SMEs) for organization and management, which may be due to a number of factors. Theoretical approaches and practical models are proposed that allow assessing the effectiveness of digital platforms. For example, models that take into account the characteristics of SMEs, the specifics of the industry and the scale of activity. The impact of digitalization on business is studied. Approaches to analyzing the impact of digital platforms on productivity, interaction with customers, logistics, finances, etc. are proposed. Regularities in the use of digital platforms are identified and systematized. The essence of models for analyzing the effectiveness of digital platforms is developed and revealed and their key components are identified. Systems that have an intuitive interface and automate routine processes are considered, helping sales managers to devote more time to customers, rather than to data administration. Mechanisms for accelerating digital transformation are substantiated and technologies that reduce barriers to digitalization are proposed.