Doctorate graduates are expected to contribute original knowledge and possess advanced skills essential for addressing complex problems. Embedding doctorateness in doctorate programmes could help ensure that the productivity of doctoral research is explicitly demonstrated. Doctorateness represents independent scholarship, the transition from knowledge consumption to knowledge creation, original scholarly contribution, and research integrity. A research proposal is the backbone of a doctoral journey, as it acts as an academic development plan for supervisors and students. Hence, understanding the role of supervisors in enabling doctorateness in preparing a research proposal is essential for improving student satisfaction and competencies in their academic development. Here, we develop a framework for facilitating doctorateness in preparing a research proposal and provide recommendations on supervisor functions.