This work aims to show a theoretical model of community-based tourism, to explain its component subsystems, to provide its theoretical–methodological foundation and to discuss the indications of its practical instrumentation in facing the changes that tourism of the future imposes and will impose. The research was carried out in the tourist context of Ecuador, for which the deductive method was applied, which allowed for examining the problem, and the more general theories related to tourist activity, which allowed for identifying the premises and objectives of the work to reach accurate conclusions on the subject studied. This was a mixed investigation that allowed for integrating the contributions of qualitative and quantitative analyses in the treatment and processing of information. The results included achieving systematization of the theoretical models linked to community-based tourism and, from a practical point of view, obtaining a new model of community-based tourism, a graphic representation of the subsystems that form this model, and its arguments. The findings show the need to update the community-based tourism model as a contribution to the scientific development of tourism as well as the systemic nature of its components from a new perspective of analysis that considers the need for changes as a developmental factor.