If your business is planning a major UK investment, HMRC’s new advance tax certainty service could give you binding clarity on the tax position before you commit.

HMRC has recently published draft guidance on the new advance tax certainty service as part of the government’s Corporate Tax Roadmap at the Autumn Budget 2024, where the Chancellor set out plans for a new HMRC service to give major investment projects clarity on how tax law will apply in advance. As part of the Autumn Budget 2025 measures last November, it was confirmed that the new service is expected to open in July 2026.

Under the new advance tax certainty service, businesses investing at least £1 billion in the UK over the lifetime of a project can apply for a formal, binding position from HMRC on how various taxes will be applied to their specific circumstances. This applies to taxes such as Corporation Tax, VAT, Stamp Taxes, PAYE and the Construction Industry Scheme.

Unlike existing clearance routes, the advance tax certainty service is designed specifically for large and complex projects where uncertainty over tax outcomes could otherwise discourage investment. HMRC clearances issued through this service will bind the tax authority for up to five years subject to full initial disclosure of all material facts. The clearance may then be renewed for a further five years unless a material change in the law, or a court decision that clarifies its application, means that the prior clearance is no longer correct.

This service is intended to provide those investing significant amounts in the UK, confidence that the tax treatment of a project will not later be challenged.