This essay explores the potential for social workers and other human services professionals to build the financial capability of vulnerable populations. These professionals routinely work with the financially vulnerable and are uniquely positioned to provide basic financial guidance and support. Their education in human development, family dynamics, organizational and community functioning, and social policy prepares them to be key partners in creating solutions to financial vulnerability. However, human service professionals need additional training. Although there has been significant progress in developing curricula, additional resources, such as assessment models and practice tools for serving specific populations, would facilitate financial practice. Academic degree programs and continuing education in financial capability must be developed, along with greater clarification about career pathways and credentialing. Building the financial capability of vulnerable families is an ambitious agenda, but one that is essential to well‐being in the 21st century.