Source · Select Committees · Public Accounts Committee

Recommendation 16

16

NS&I's core banking engine replacement and data migration pose significant risks

Conclusion
There are still many risks for the Programme to manage, for example the replacement of the ‘core banking engine’ is extremely high risk, but the main work has yet to start.41 NS&I agreed that when it replaced its banking engine, data migration would be a “huge consideration”, and said it knew this would need to be managed “in minute detail”, but gave no details of how it would do this. NS&I’s contract with Atos to run the banking engine expires in 2028, and it will need a new contract after then to ensure continuity.42
Government Response Response Pending
HM Government Response Pending
The Treasury and NS&I acknowledge these concerns and are committed to addressing them through robust planning, risk management, and governance. NS&I is working to develop a comprehensive integrated plan that includes clear timelines, cost estimates, and resource allocation. NS&I has strengthened its systems integration capabilities and is ensuring that decisions are based on sound evidence and analysis.