Case Study: ELFS Shared Service achieves £15M in savings and automated verification of 1.3M invoices a year with Xelix

How ELFS verifies 1.3 million invoices a year

ELFS Shared Services, which processes around 1.3 million invoices a year for 14 NHS trusts, faced an unsustainable manual checking process and limitations with their previous provider that produced many false positives and restricted how teams could review and download potential duplicates. After market review and due diligence, ELFS chose Xelix’s AI-powered invoice duplicate-checking solution, using a free test system and board-level comparisons to justify the move.

Xelix delivered a fast, low-risk implementation with extra training and ongoing named support, enabling ELFS to split and download data, run overnight checks and progressively reduce false positives through machine learning. The system delivered immediate ROI: Xelix identified £7m of duplicate payments in month one and has since prevented a further £7.3m, contributing to £15m in savings to date, with the solution live in a matter of weeks.

ELFS Shared Service

Melanie Roskell

Purchase to Pay Manager