The home support and social participation of seniors with disabilities require the appropriate coordination of various community resources, including home support within health and social service centers. Despite their importance, interventions currently offered by health and social service centers for seniors with disabilities are limited and focus mainly on safety and independence in hygiene, dressing, transfers and nutrition, at the detriment of social and leisure activities. This can be partly explained by an evaluation that does not thoroughly cover all aspects, nor adequately capture the complexity of seniors’ needs. This article presents a reflection on the use of the Autonomy Assessment in the Multiclientele Assessment Tool, including the Functional Autonomy Measurement System (SMAF), to identify the social participation needs of seniors with disabilities. This reflection is supported by a comparison between the Multiclientele Assessment Tool, the Assessment of Life Habits (LIFE-H, 4.0) and the Canadian Occupational Performance Measure (COPM, 5th edition). The results of this comparison show that the Multiclientele Assessment Tool does not allow for a comprehensive evaluation of the social participation needs of seniors with disabilities. The least covered activities are those related to health and well-being, including regular physical social and relaxation activities as well as cognitive stimulation and entertainment. The Multiclient Assessment Tool contains some ambiguities and overlap, as well as items that do not pertain to the dimensions of social participation. The approach and language used in the Multiclientele Assessment Tool could involve seniors more and be more focused on their abilities and preventative activities. In short, by revisiting the Multiclientele Assessment Tool or supplementing it with another tool such as the LIFE-H or the COPM, interventions could potentially improve and maintain the health and social participation of seniors with disabilities.