Abstract This paper1 describes a research proposal to examine whether or not the underlying analytic concepts behind the couple psychoanalytic psychotherapy model used at the Tavistock Marital Studies Institute in London are sufficiently coherent, both conceptually and clinically, to be used as the basis for a system of audit which respects the unique data produced in analytic psychotherapy. This ‘psychoanalytic’ system of audit is one which is characterized particularly by the use of the therapists’ subjectivity, rather than attempts to be objective and gather data through such things as random controlled trials or generic outcome questionnaires. The paper describes the approach to the subject and the mix of qualitative and quantitative methods used. As the Tavistock Marital Studies Institute has a history of contact with Jungian analysts from the Society of Analytical Psychology, Jungian concepts are included in the model. The research is part of a professional doctorate in couple psychoanalytic psychotherapy at the Tavistock Marital Studies Institute in conjunction with the University of East London, entitled ‘Conceptualising audit in Couple Psychoanalytic Psychotherapy’.