Background <p>Multidomain assessment is essential for identifying the complex medical, functional, and psychosocial needs of older adults receiving home care. However, there remains a limited understanding of how existing assessment tools comprehensively address these needs across nursing and rehabilitation disciplines.</p> Methods <p>We conducted a date-unrestricted scoping review of PubMed, Scopus, and the Cumulative Index to Nursing and Allied Health Literature (CINAHL) to map assessment tools applicable to home nursing and rehabilitation practices, identifying eight studies published between 2004 and 2024.</p> Results <p>The eight included studies employed diverse methodological designs, with each study using a distinct approach, and involved heterogeneous populations and multidomain assessment tools. These tools differed in their scope, conceptual foundations, and psychometric rigor. Most instruments consistently assessed the physical and medical domains, whereas psychosocial health, nutrition, caregiver burden, and patient-reported outcomes were infrequently incorporated. Only a subset of instruments reported evidence of reliability or validity, and the extent and rigor of this evidence varied considerably across studies.</p> Conclusions <p>Overall, the findings highlight a fragmented assessment landscape in which existing tools provide valuable but incomplete support for interdisciplinary practices. There is a clear need for an integrated, evidence-informed, multidomain framework tailored to home-visit care to strengthen interdisciplinary communication, enable earlier detection of unmet needs, and enhance the quality of care for community-dwelling older adults. Future research should also address gaps in the availability of validated tools across different languages and cultural contexts.</p>