Early identification of patients who need a social work evaluation is integral to effective discharge planning. This article describes the development and application of the Social Work Admission Assessment Tool (SWAAT), a six-item scale that identifies patients with complicated discharge needs who require a social work evaluation. It addresses ambulation, mental status, living situation, current social services, self-perceived need for additional services, and need for assistance in going home. Based on their scores, patients are categorized as having low, intermediate, or high need. A greater proportion of high-need patients were discharged with services and had prolonged hospitalizations (p = .0001). The SWAAT is a comprehensive needs assessment tool that may facilitate discharge planning and improve quality of care.