Abstract Much recent work has investigated participants’ ability to switch between simple cognitive tasks. However, little research examines how performing an emotionally relevant task affects one’s ability to switch tasks. Understanding how emotion affects the task-switching process may help elucidate the role of emotion in executive control. Across two experiments, participants alternated predictably between two tasks requiring a perceptual decision about either an aversive spider image or a neutral digit. The results demonstrate that fearful participants evinced accelerated engagement toward, and decelerated disengagement away from, the threat-relevant task.