Innovations introduced into the NHS such as total purchasing (TP) have raised issues about information requirements and information technology. Information and information systems for TP are inadequate, with major problems being centred on a lack of guidance on specific systems for TPPs and an absence of software standardisation. Poor activity and cost data hamper the attempts of many TPPs to change services. These difficulties are compounded by a lack of understanding between TPPs and health authorities/boards about the information necessary to support devolved purchasing. The results of this study make clear that I.T., health needs assessment and the use of evidence to inform purchasing will need to be developed further by the majority of TPPs. Only then will they have the ability to influence health services for the benefit of their patients.