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Is the Treasury rethinking the tax treatment of development expenditure?

The Government has launched a consultation on the tax treatment of pre-development costs, seeking views on how the current rules affect investment decisions across a range of sectors.

Is the Treasury rethinking the tax treatment of development expenditure?

The Government has launched a consultation on the tax treatment of pre-development costs, seeking views on how the current rules affect investment decisions across a range of sectors.

While technical in nature, the consultation raises an important question for policymakers on whether the current tax treatment of pre-development expenditure creates an unnecessary barrier to investment.

The consultation follows HMRC's recent update to the Capital Allowances Manual in response to the Supreme Court's decision in Orsted West of Duddon Sands. The case highlighted a potentially significant issue for businesses undertaking major projects: certain pre-development costs may not qualify for any tax relief because they are capital in nature, while also being regarded as too remote from the provision of plant and machinery to qualify for capital allowances.

For developers, infrastructure providers, renewable energy businesses and investors, the consultation could have implications that extend well beyond the specific facts of the Orsted case.

A wider investment issue

Major development and infrastructure projects often require substantial expenditure before construction begins. Businesses may incur costs relating to:

  • Environmental and ecological surveys
  • Feasibility studies
  • Technical investigations
  • Planning and consent activity
  • Design and engineering work
  • Site assessments and preparatory activity

These costs are essential to determining whether a project is viable and securing the permissions needed to proceed. For major property, energy and infrastructure projects, these costs can run into hundreds of thousands – and in some cases millions – of pounds before a final investment decision is made.

However, the tax treatment of such expenditure is not always straightforward. Businesses can find themselves committing significant sums before knowing whether relief will ultimately be available. In sectors where projects can take years to progress from concept to delivery, that uncertainty can influence investment decisions and project viability.

The consultation acknowledges the role of early-stage costs in bringing projects forward and is seeking views on whether the current rules influence commercial decision-making.

What this could signal for future tax policy

This consultation arrives alongside the Government's review of Land Remediation Relief and other measures aimed at encouraging development and regeneration.

Taken together, these initiatives suggest the Treasury is taking a closer look at how tax reliefs interact with project viability, upfront investment and development economics.

Whether the issue is remediation costs, pre-development expenditure or wider capital investment, a common theme is emerging: tax relief can lag significantly behind commercial investment.

The key question now is whether the consultation leads to greater certainty for businesses making long-term investment decisions, particularly where significant expenditure must be incurred before a project's viability can be confirmed.

We're here to help

Understanding the tax treatment of development expenditure can be complex, particularly for long-term projects where relief may not always be clear at the outset.

Azets' Capital Allowances specialists can help businesses assess existing projects, understand the implications of recent developments and respond to consultations that could affect future investment plans.

If you would like to discuss the consultation or the impact of the Supreme Court’s decision on your business, please get in touch with Aulfat Bi, Paul Smith or your usual Azets adviser.

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