Housing insecurity impacts both older adults and university students, each from differing perspectives. Policies promoting older adults to age in place aim for continued residence in their own home. However, availability of appropriate and timely support options and increasing need over time often make moves to higher levels of care necessary. By comparison, university students can experience limited, unaffordable or unstable accommodation options hindered by personal limitations including academic commitments, location and income. Intergenerational homeshare, a mutual beneficial living arrangement, is one approach that potentially addresses these issues. We used JBI scoping review methodology to synthesise peer-reviewed and grey literature examining intergenerational homeshare arrangements between adults aged over 50 years and university students. Of 1092 sources between 1985 and 2024, there were 63 inclusions. Programs operated across multiple countries with older adult participants, most commonly women, experiencing social isolation. Older adults and students frequently reported positive experiences, reduced loneliness and greater satisfaction with the program than expected. Adverse outcomes were uncommon but included required levels of support for older adults exceeding the students’ expectations. Initial older adult concerns for entering programs included compatibility, financial implications and living with student behaviours. For student participants, who were also more often female, concerns included lifestyle compatibility, autonomy and role expectations. This review identified key recommendations for organisations wishing to develop older adult/student homeshare programs. These include facilitation of matching/relationship development phases for participants, written agreements covering boundaries and expectations for all parties, support throughout the homeshare relationship and engaging in agreement-ending processes.