For those who are committed to IAS 39 hedge accounting there is a variety of technology support. Treasury departments are under pressure to ensure that these systems are fit for purpose to manage the risks they face. To date there is no consensus on the systems designs which are deemed appropriate. From the perspective of product managers, software designers and developers, IAS 39 presents a unique set of challenges. Treasurers need an understanding of the technology needed to deliver a solution against ineffective hedging.