In todays digitally advanced society, large volumes of patient-level data can be collected and compiled. With an ever-increasing demand upon healthcare resources, this could have numerous benefits. Speaking from the British Oncology Pharmacy Association (BOPA) 20th Annual Symposium 2017 in Glasgow, UK, Bryn Thomas of The Royal Marsden NHS Foundation Trust, London, UK discusses the advantages of the use of patient-level data in the NHS and the challenges in this area moving forwards, which include technical aspects, quality control and public perception.