Transformation of HMRC's Trade Statistics Service

This document is a case study detailing the transformation of HM Revenue & Customs (HMRC) trade statistics service through a collaboration with Capgemini. The primary objective was to replace an aging legacy mainframe system that supported UK trade statistics, which are crucial for tax calculations and customs duties. Capgemini employed its Model Office approach to migrate the trade statistics generation to Microsoft Azure, leveraging modern technologies to enhance operational efficiency and flexibility. The case study outlines the collaborative process involving HMRC's business and IT stakeholders to capture user needs and develop a working prototype within two weeks. The implementation of a 'train the trainer' program ensured that internal teams were equipped to promote the solution effectively. The document highlights key outcomes such as improved user experience, rapid upskilling of teams, and the establishment of a replicable model for future legacy modernization initiatives. Overall, the transformation has enabled HMRC to respond swiftly to policy changes and improve data analytics capabilities.