Select committee: Public Accounts Committee
Recommendation 8
67th Report - NS&I’s transformation programme
Published 13 Feb 2026
Addressed to HM Treasury
Public Accounts Committee NS&I’s transformation programme All items in this report Report on parliament.uk ↗ Inquiry on parliament.uk ↗
Recommendation (the committee's words)
In December 2025, after five years, NS&I still has no agreed and approved integrated plan to indicate a Programme end date and milestones. NS&I has repeatedly failed to deliver such a plan.12 At our session in December 2025, NS&I said its system integrator Capgemini had now developed a draft plan, which showed that the Programme would run beyond March 2028. NS&I is now doing a re-planning exercise to try and compress the work and bring this end date forward. NS&I said it would take advice from David Goldstone on this work.13 NS&I could not tell us how much the plan would need to be adjusted, but claimed this would add months not years, and said it was aiming to finish its replanning by March 2026.14 This would leave just two years to complete the Programme before the Atos contract is due to end in March 2028.15 When pressed for whether it could deliver before the Atos contract ends, NS&I acknowledged it would look at extending the Atos contract, potentially to 2031, which would imply a further delay of 3 years and additional cost from the longer timeframe.16
From: Public Accounts Committee, 67th Report - NS&I’s transformation programme (HC 1237), 13 February 2026
Government response
The government responded to the whole report on 7 April 2026 (deadline 13 April 2026).
Summary written by Accountability Index from the government's response. It is not the government's own words.The government states that it "agrees with the Committee's recommendation" on each of the recommendations in the report, and sets target implementation dates between June and Autumn 2026.
- On the integrated plan, the government agrees that NS&I should prepare a realistic plan. NS&I is developing costed options, which will form the basis of a revised Full Business Case in the second quarter of 2026-27, "subject to Treasury and Ministerial process timings".
- NS&I will write to the Committee "within six months" setting out the integrated plan, including timelines and a revised estimated cost, and will provide a written update on its risk management framework "by June 2026".
- On culture, a business-wide programme of cultural change activity will be developed, with an initial plan to go to the Board and the Treasury in early Summer 2026 for "rolling implementation over the coming 12-18 months".
- The Treasury says it will evaluate NS&I's agreed plan through a full Treasury Approval Panel process and will write to the Committee in the Autumn on lessons learned from its oversight.