Barriers to accessing psychologists for the treatment of depression and anxiety include a shortage of specialised therapists, long waiting lists, and the affordability of therapy. This study examined the efficacy of a computerised‐based self‐help program (MoodGYM) delivered in‐conjunction with face‐to‐face cognitive behavioural therapy (CBT) to expand the delivery avenues of psychological treatment for young adults (aged 18–25 years). Eighty‐nine participants suffering from depression and/or generalised anxiety were randomly allocated to a control intervention or to one of three experimental groups: receiving face‐to‐face CBT, receiving computerised CBT (cCBT), or receiving treatment in‐conjunction (face‐to‐face CBT and cCBT). While MoodGYM did not significantly decrease depression in comparison to the control group, significant decreases were found for anxiety. MoodGYM delivered in‐conjunction with face‐to‐face CBT is more effective in treating symptoms of depression and anxiety compared with standalone face‐to‐face or cCBT. This study suggests that for youth who are unable to access face‐to‐face therapy—such as those in rural or remote regions, or for communities in which there is stigma attached to seeking help—computerised therapy may be a viable option. This is an important finding, especially in light of the current capacity‐to‐treat and accessibility problems faced by youth when seeking treatment for depression and/or anxiety.