The negative attitude of psychotherapists towards the treatment of older patients in the past has weakened in the recent past. Nevertheless, the question remains as to how therapists perceive older patients in comparison to younger patients, what clinical judgements they arrive at and how they perceive the relationship with them. In the present study, which was conducted as part of the ÄPP study (Older Patients in Psychotherapy), therapists were asked to assess a self-selected younger (<40 years) or an older patient (>65) with regard to various variables. A total of 527 completed questionnaires were available. Two-factor analyses of variance were used to show, among other things, that younger therapists (compared to their older colleagues) rate older patients more negatively in terms of suitability for psychotherapy, the patient's ability to establish a therapeutic working relationship and other parameters. In comparison with their older colleagues, younger therapists perceive themselves as less competent in their relationships with older patients. There are only slight differences with younger patients.