The case for introducing a minimum NHS service requirement for UK-trained doctors.

The UK's National Health Service (NHS) faces a persistent workforce crisis, with doctor shortages exacerbated by high attrition and outward migration of UK-trained doctors. Despite extensive public subsidy of medical training-estimated at £250 000 per doctor to the point of full General Medical Council registration-there is currently no requirement for UK-trained doctors to serve a minimum number of years in the NHS. Many UK-trained doctors leave the NHS early in their career, often to practise overseas in healthcare systems that did not contribute to their training. This paper makes the case for introducing a minimum NHS service requirement for UK-trained doctors-advancing a policy proposal grounded in ethical principles-akin to obligations already established in the British Armed Forces for sponsored medical students. The analysis highlights the significant financial burden of training and replacing doctors, estimated at £350 000 per individual lost after 1 year of NHS service, as well as non-financial costs including lost expertise, disrupted continuity of care and opportunity costs arising from oversubscribed medical school places. A minimum service requirement could mitigate these inefficiencies by ensuring a greater return on public investment and encouraging self-selection among applicants more committed to long-term NHS service. Potential objections-including concerns about fairness, autonomy, unintended attrition at later stages and recruitment impacts-are considered and addressed. While further empirical research is needed to refine the optimal duration and assess behavioural impacts, the introduction of a minimum NHS service requirement represents a pragmatic strategy to strengthen workforce retention and protect taxpayer investment.