Consent is morally transformative and suffuses our everyday moral and social lives. Valid consent makes the difference between permissible sex and rape; between a medical exam and assault; between entering a person’s home and trespass; between an economic transaction and theft. We need consent to include participants in research, to collect private information, to borrow things, to exchange money, to perform medical procedures, to cut someone’s hair, and to enter into legally binding contracts. Despite the centrality of consent to everyday moral and social life, however, little psychological research has investigated how people determine whether someone else has given valid consent, nor how attributions of consent figure in moral reasoning–how attributing the presence (or lack) of valid consent affects attributions of responsibility, obligations, and permissions to different parties. This line of research aims to understand how people reason about, and navigate, consent-based moral interactions.