Magister Commercii - MCom / Against the background of major corporate scandals internationally and in South Africa, questions are being asked about the level of morality of leaders in organisations. This study assessed the level of moral reasoning of senior managers in a South African company in the insurance industry. The study was based on Kohlberg’s Cognitive Moral Development (CMD) Theory and an assessment of key literature pieces relating to ethical leadership and business ethics. Research has demonstrated that ethical leaders have a significant influence on an organisation’s performance, reputation, sustainability, ethical climate and employee engagement. Globally and in the South African corporate context it is therefore important for organisations to understand the capacity of its leaders to behave ethically so that appropriate interventions can be engaged in. More specifically, this study aimed to assess the level of moral reasoning of managers in a large South African organisation and examined the relationship between the variables age, gender, race, tenure and education on the one hand and the level of moral reasoning on the other hand. This study also assessed the reliability of the Managerial Moral Judgment Test (MMJT). This study was a cross-sectional, quantitative study utilising a previously developed questionnaire, the Managerial Moral Judgment Test. This study contributed to the very sparse body of knowledge of managerial moral reasoning in the South African business context, while the research results can be used to identify managerial training and development needs in ethics in the organisation studied. This study found that the moral reasoning levels of managers at the research site, is at the conventional level, while the variables age, gender, race, tenure and education have no significant influence on the level of moral reasoning. In addition, this study established the internal reliability of the Managerial Moral Judgment Test and located ethical leadership and business ethics in the literature.