There is increasing interest in financial social work as a way to tackle the challenges that economic inequality and financialization pose for financially vulnerable households. Financial social work has deep historical roots and a potentially broad scope for the social work discipline. Two basic concepts underlie financial social work: financial capability and financial well-being. The financial capability framework is the underlying theory. It links structural and clinical practices of financial social work to the growing body of research on financial capability and asset building. Practice content and strategies of financial social work are mapped in detail in three examples: Child development, intimate partner violence, and problem gambling. An overview of the current status of financial social work in social work education and possible future directions concludes the discussion.