Are philosophers moral experts, and if so, what does this imply for their proper role in moral decision-making? The dominant view on this subject argues that philosophers have superior moral understanding, but they are not better judges of what is morally right. Consequently, philosophers cannot and should not have an authoritative role in moral decision-making. In this article, I challenge this view and argue that an examination of the intimate connection between two capacitiesto understand and to judgereveals that it is both inconsistent and simplistic. It is inconsistent because, all things being equal, if philosophers better understand moral problems, they are also better judges of them. It is simplistic because it adopts an all-or-nothing approach to moral expertise, while expertise is in fact conditional. Inspired by the psychological literature on expertise, I claim that we should not ask whether philosophers are moral experts but rather under which conditions they successfully execute their expertise. The conclusion of the dominant view needs to be reconsidered to reflect the conditional nature of philosophers' expertise. Although more empirical research is required, I offer several hypotheses for future endeavours that demonstrate what a conditional view of philosophers' moral expertise could look like.