Whether real or merely conceived, the distance to beneficiaries impairs individuals' generosity. This makes it important, both theoretically and practically, to identify factors that can promote prosocial behavior toward distant others. The present research identifies implicit self-theories (i.e., individuals' lay beliefs about the malleability or fixedness of human attributes?-incremental vs. entity theory) as one such factor. Four experiments demonstrate that incremental (vs. entity) theory enhances charitable behavior to distant others by decreasing perceived social distance toward them. We also show that this effect attenuates when the beneficiary is socially close, as consistent with the mediation mechanism. Furthermore, by combining the implications of research on motivational dynamics in collective goal pursuit, we predict and confirm a more nuanced influence of implicit theories on donations, such that the positive effect of incremental theory on giving toward distant others can reverse when the progress of a donation campaign is sufficiently high.