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β-thalassaemia is an inherited haemoglobinopathy characterised by ineffective erythropoiesis and chronic anaemia of varying severity, which is predominant in the region extending from the Mediterranean basin and Middle East towards southeast Asia. Patients with severe phenotypes require lifelong transfusions, iron overload monitoring, and chelation. Suboptimal management due to access challenges continues to be directly linked to increased morbidity and mortality in many regions. In the past few decades, an improved understanding of the underlying pathogenesis of β-thalassaemia has led to the development of several disease-modifying therapies and curative gene manipulation techniques. However, global disparities in access and the need for specialised expertise hinder their wide implementation, especially in resource-limited countries where more than 80% of patients live. Uncertainty about which biomarkers can predict patient response further complicates the selection of patients for treatment. Beyond the need for access programmes and pragmatic national health policies, patient prioritisation by treating physicians, informed by available evidence and expert opinion, is crucial for ensuring that a resource-cautious management approach is implemented. This Viewpoint provides a decision matrix to prioritise interventions by need, benefit, and risk in settings with inadequate access, and to identify alternatives when standard options are unavailable. It draws on the Thalassaemia International Federation guidelines, best available trial and real-world evidence, and expert consensus from virtual discussions among the authors (haematologists, bone marrow transplantation physicians, patient group representatives, translational scientists, and trialists).