This article proposes a new way of passively assessing homecare need for older people living at home. The main advantage is to provide a precise measure with a limited effort for the caregivers. Research proposition is based on a Rasch model that uses available daily activities of care, which are performed by the professional caregivers. The proposed approach follows the idea of a precision and personalized care where the collected data provide a dedicated measure for the recipient’s homecare needs. Then from the latter, the recipient’s autonomy can be approached.