NS&I's £3bn IT Overhaul Condemned by MPs as a 'Full-Spectrum Disaster'
The Treasury-backed savings provider National Savings and Investments (NS&I) has been heavily criticised by a parliamentary committee for its handling of a major business transformation project. The initiative, which is already two years behind schedule, has consumed over £3 billion of taxpayer funds without delivering any meaningful benefits to date.
Project Delays and Soaring Costs
The ambitious IT and infrastructure overhaul was originally launched in 2020 with a completion target of 2024. However, the project has been plagued by significant delays and cost overruns exceeding £1 billion. A new deadline has now been set for March 2028, but critical work on the core banking engine has not yet commenced.
Sir Geoffrey Clifton-Brown, Chair of the Public Accounts Committee (PAC), delivered a damning assessment, stating that NS&I was "blinded" to the realities of managing such a complex programme. The committee's report highlights a lack of clarity on both the total expenditure to date and the final cost required to complete the transformation.
Lack of Oversight and Consultant Reliance
The PAC investigation revealed that NS&I lacked the necessary in-house expertise to successfully execute the project from the outset. This led to a heavy reliance on expensive external consultants, with £43 million spent on their services. The report criticises NS&I for being "vague on how it holds them to account."
In a concerning development, the government allocated an additional £109 million to the project in January, pending approval, despite the ongoing uncertainties surrounding its management and ultimate cost.
Impact on Millions of Savers
NS&I serves approximately 25 million customers, primarily through its popular Premium Bonds monthly prize draw and various fixed-term savings products. These accounts represent an estimated £240 billion in savings, all of which are guaranteed by the Treasury.
The savings provider has a target to raise at least £13 billion for the Treasury during the 2025-2026 tax year through its activities. The continued failures of the transformation programme now threaten this objective and risk further financial exposure for taxpayers.
NS&I's Response and Future Plans
In response to the criticism, an NS&I spokesperson acknowledged the difficulties faced, stating that separating and rebuilding 25 years of complex IT infrastructure had proven "more difficult than we originally envisaged." The organisation said it underestimated the scale and complexity of the challenge.
NS&I emphasised that the business transformation programme remains crucial for its ability to continue providing cost-effective finance for the government and delivering the services customers expect. The spokesperson confirmed that options to improve programme delivery are being explored, with an update to be provided in due course.
The Treasury, which guarantees all customer money held by NS&I, declined to comment on the PAC report. Sir Geoffrey Clifton-Brown concluded with a stark warning, expressing the committee's concern that "the taxpayer is at serious risk of throwing good money after bad" unless NS&I develops and implements a realistic plan to complete the transformation successfully.



