With the growing number of individuals with Autism Spectrum Disorder (ASD) reaching the age of consent, health-care providers must be prepared to bridge gaps in their knowledge of ASD. This is especially true for clinicians who may have to determine if a person with ASD has the capacity to engage in end-of-life decision making, complete advance directives, or act as a surrogate decision maker for someone else. This paper provides an overview of the unique characteristics of autism as related to the communication, cognitive processing, and the capability to participate in advance care planning and, when acting as a surrogate decision maker, to consider the values and preferences of others. In addition, we examine the roles and responsibilities of clinician as facilitator of shared health-care decision making communication with the individual who has autism. Consideration is given to determining capacity, planning for atypical responses, the impact or lack of influence of the framing effect, and strategies for presenting information. Finally, we will offer health-care providers information and examples for adapting their existing end-of-life decision-making tools and conversation guides to meet the communication needs of persons with ASD.