This paper presents the findings from an exploratory in-depth case study with regard to eReverse Auctions (eRAs) in the UK public sector. These findings highlight that eRAs can improve procurement processes, realise cost savings and reduce delivery times. The research also notes that eRAs can produce dis-benefits, including poor buyer and supplier relationships and social implications. The paper elicits lessons learnt from the case study analysis. These are presented with the aim to inform theory and practice. Key Words: e-Government, e-Reverse Auctions, Procurement, Case Study.