It seems that wherever you turn people are talking about Pay for Success (PFS) financing as a new way to increase funding, through private sector investment partners, for services that address important social challenges. Under Pay for Success financing, government funding is transformed from payment for services to payment for outcomes. Thus, preparing for PFS financing can help organizations build capacity for outcomes-based, data-driven management. In this policy brief, we explore whether PFS financing could be used to supplement (not replace) core government funding for child care for infants and toddlers, in order to increase access to and the quality of this vital service. (author abstract)