As local government reorganisation moves from proposal to implementation, attention will focus on governance, service continuity and political transition. But for treasury teams, the creation of shadow authorities marks a more fundamental point.
A shadow authority is the statutory body established before a new council formally takes on its full powers. Government implementation guidance describes a Shadow Council as existing until vesting day, when it assumes all local government functions and becomes the only council for the area. Until then, predecessor councils usually continue to operate day-to-day services, while the shadow authority prepares the governance, staffing, budgetary and strategic framework of the successor council.
Before vesting day, the shadow authority may shape the new council’s first financial framework, governance arrangements and early approach to borrowing, investment, liquidity and risk. That makes the shadow period a legally important window, not simply an administrative handover.
For treasury management, this transition is unlikely to be straightforward. New unitary authorities may inherit several borrowing portfolios, investment balances, capital programmes, reserves, accounting policies and risk appetites. Each predecessor authority will have made decisions in a different financial context, with different assumptions about interest rates, capital financing, minimum revenue provision, liquidity and affordability. The successor council will inherit a combined balance sheet shaped by years of separate decisions.
That makes early treasury due diligence essential to identify any areas where historic approaches differ materially, including MRP policies, prudential indicators, commercial property exposure and the treatment of reserves.
The governance challenge is just as important as the technical one. The legal framework for local government reorganisation can involve statutory bodies, inter-authority negotiations and formal transition agreements.
Section 16 agreements are made under the Local Government and Public Involvement in Health Act 2007 during reorganisation in England, to allow certain functions to be exercised on behalf of another authority before vesting day, helping manage the practical and governance challenges of transition. Shadow authorities and section 16 agreements as central parts of this framework, requiring close attention from monitoring officers, Section 151 officers and legal teams. Treasury decisions made during this period must therefore be properly authorised, documented and aligned with both the predecessor councils’ responsibilities and the future authority’s objectives.
One of the first major tests will be the new authority’s initial Treasury Management Strategy Statement, Investment Strategy, MRP Statement and Capital Strategy. These should not simply be assembled from predecessor documents. A new unitary council may have a different revenue base, different service responsibilities, different capital ambitions and a different tolerance for risk. Its treasury strategy should reflect the financial reality of the new organisation, not merely the sum of its predecessors.
There is also a practical liquidity issue. Although a successor authority may inherit substantial cash balances, not all of these resources will necessarily be available to support day-to-day liquidity, as some may already be earmarked for capital commitments, reserves or transition costs. Bank accounts, cash pooling, investment limits, counterparty access and payment processes all need to be ready before vesting day.
The key message is that shadow authorities should treat treasury management as a core transition workstream, not a technical task to be resolved after reorganisation. Done well, the shadow period offers an opportunity to create a stronger, more consistent and more resilient treasury framework. Done late, it risks leaving the new authority with avoidable uncertainty at the point when stability matters most.
For further information on treasury support during local government reorganisation, please contact the Arlingclose team at treasury@arlingclose.com.
Related Insights
10/06/2026
How Will Local Government Reorganisation Shape The Future Of Capital Programmes?
Is Government Thinking on Local Government Reorganisation Beginning to Shift?
What Role Will Governance Play in Local Government Reorganisation?