Large numbers of adults and children have emotional difficulties that are severe enough to be classified as mental health problems. This places a current and future economic drain on society and prevents individuals from leading fulfilling lives and has led to a call for more therapists to work with those affected. However, there are insufficient professionals working in mental health services to meet demand. This paper will explore the case for educational psychologists (EPs) engaging in cognitive behavioural therapy (CBT) in their role as applied psychologists. This discussion paper adds to the debate about the level of training needed to be deemed competent to deliver individual CBT. For example, would EPs have "appropriate levels of training" suggested by the National Institute for Health and Clinical Excellence (NICE) guidelines for the treatment of depression? Six arguments are presented discussing some of the issues of professional competence leading to the conclusion that EPs are well placed to deliver a cognitive behavioural psychology service to schools, pupils and families. (Contains 1 note and 3 figures.)