Treasury Plans Guidance to Help Departments Record Digital Service Costs

Why It Matters

The standardized costing framework will give ministers clearer insight into public spending, enabling more effective budgeting and prioritisation of complex, high‑cost services. Improved cost visibility also drives legacy IT remediation and overall government efficiency.

Key Takeaways

• Treasury to issue service costing guidance by July
• Minimum data set includes people, process, technology, estates
• Departments must appoint senior service owners by 2027
• Guidance aligns with NOVA model and shared ERP rollout
• Legacy IT action plan to improve cost visibility

Pulse Analysis

Public scrutiny of government IT spending has intensified after the Public Accounts Committee highlighted a systemic lack of cost transparency across departments. By introducing a unified costing framework, HM Treasury aims to close the data gap that has long hampered fiscal oversight. The new guidance, slated for July, prescribes activity‑based costing, overhead apportionment and staff‑time capture, ensuring that every digital service can be measured against clear outcomes. This move not only satisfies parliamentary demands but also equips finance teams with the tools needed for more disciplined budgeting.

At the heart of the initiative is a minimum data set that captures people, process, technology and estates costs, anchored to the NOVA reference model—a government‑wide standard for finance, HR and procurement data. Coupled with the rollout of shared enterprise resource planning platforms and a common chart of accounts, the approach promises consistent, comparable cost reporting across ministries. A further pillar is the requirement for senior single service owners (SSOs) to be appointed for all digital services by 2027, creating accountable custodians who can drive cost‑reduction initiatives and align service delivery with strategic objectives.

The broader impact extends to legacy IT management, a chronic source of inefficiency and security risk. The upcoming Legacy IT Action Plan will leverage the new baseline cost data to prioritize remediation of ageing systems, potentially unlocking significant savings. For the public sector, the combined effect of transparent costing, accountable ownership and targeted legacy upgrades is a more agile, fiscally responsible digital landscape that can better serve citizens while meeting tighter budgetary constraints.