Researchers have established associations between the stressors of providing informal care and caregiver health risks. Despite the negative consequences, researchers have identified the existence of protective factors that have the potential to buffer or prevent stress. The purpose of this study was to determine the relationship between self-efficacy and stress in adult informal caregivers providing end-of-life care. This cross-sectional, associational study analyzed data from questionnaires completed by adult informal caregivers providing end-of-life care for an adult in North Texas.