Objectives Describe the use of a Symptom Assessment (SA) Toolkit designed to support in-home caregivers of homebound older adults with serious illness. Explore next steps in evaluation and dissemination of the Toolkit. Importance. Many older adults with serious illness who depend on others for care have symptoms that are difficult to manage. Supporting in-home caregivers in symptom assessment (SA) may improve suffering among older adults. Objective(s). To test the feasibility of a SA-Toolkit for caregivers to assess and track older adults' symptoms.