This mixed-methods study investigated the relationship between burnout and performing noncounseling duties among a national sample of professional school counselors, while identifying school factors that could attenuate this relationship. Results of regression analyses indicate that performing noncounseling duties significantly predicted burnout (e.g., exhaustion, negative work environment and deterioration in personal life), and that school factors such as caseload, Adequate Yearly Progress status and level of principal support significantly added to the prediction of burnout over and above noncounseling duties. Moderation tests revealed that Adequate Yearly Progress and caseload moderated the effect of noncounseling duties as related to several burnout dimensions. Participants related their burnout experience to emotional exhaustion, reduced effectiveness, performing noncounseling duties, job dissatisfaction and other school factors. Participants conceptualized noncounseling duties in terms of adverse effects and as a reality of the job, while also reframing them within the context of being a school counselor.