The article is devoted to the study of the role of the individual development plan (IDP) in career management and staff retention in hotel companies. The research relevance is due to the development of the Russian hotel industry in the context of a continuing shortage of qualified specialists and high staff turnover. The purpose of the work is to study the relationship between the level of IDP formalization and the risk of employee dismissal, as well as to develop tools for assessing the maturity of the IDP system. The methodological basis of the work was an analysis of scientific approaches to career and personnel management and an empirical study conducted through a survey of HR managers of 20 Moscow four-/five-star hotels. The results showed that the presence of a formalized IDP system is associated with a decrease in the proportion of employees considering changing jobs over the next 12 months. The research scientific novelty lies in the development of IDP typology and a four-level matrix for assessing the maturity of the corresponding system. Within the framework of the proposed matrix, such four successive stages of development as “Initial”, “Developing”, “Mature” and “Optimizing” ones are identified. Each stage characterizes a certain level of formation of management practices and the degree of IDP involvement in the main personnel organization processes. Using this matrix will allow the hotel management to determine the current state of the IDP system, identify its weaknesses and set priorities for further improvement. The results obtained expand the existing scientific understanding of the role of individual development plans in the personnel management in the hotel sector. The practical significance of the work is determined by the possibility of applying the developed approaches and recommendations to improve the processes of employee advancement on the career ladder, increase the effectiveness of personnel management and ensure staff stability at a hotel enterprise.