What is the advance tax certainty service?

by Aitch, posted in General

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HMRC has recently published draft guidance on the new advance tax certainty service as part of the government’s Corporate Tax Roadmap at the Autumn Budget 2024, where the Chancellor set out plans for a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.

Source:HM Treasury | 12-01-2026
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Aitch
I'm Aitch, the Founder and CEO of CIGMA Accounting Ltd. As a Chartered Management Accountant and as a CIMA member, I've spent more than 16 years helping businesses, entrepreneurs, landlords, and individuals with tax planning, accounting, and HMRC compliance. As a chartered accountant in London, I'm passionate about making complex tax matters easier to understand and helping clients make confident financial decisions. Over the years, I've advised start-ups, SMEs, established companies, and high-net-worth individuals across a wide range of tax and accounting matters. My expertise includes Corporation Tax, Self-Assessment, Capital Gains Tax, Inheritance Tax planning, R&D tax relief, capital allowances, international tax, and resolving complex HMRC compliance issues. Whether clients need a business accountant, tax accountant, or strategic tax advisor, my focus is always on delivering practical advice that creates long-term value. One of my specialist areas is Making Tax Digital (MTD). I've worked extensively with businesses preparing HMRC's digital reporting requirements, helping them move to cloud accounting, improve financial processes, and adopt technology that makes compliance more efficient. I regularly speak at Making Tax Digital roadshows, industry events, and educational sessions in collaboration with Zoho Books, sharing practical insights into digital accounting, tax legislation, and the future of the profession. Many business owners looking for the best accounting firm in London are not simply searching for an accountant they're looking for trusted advice, responsive support, and long-term value. That's the approach I've taken in building CIGMA Accounting. My team and I work closely with businesses across London and the UK, providing accounting services, tax advisory, bookkeeping, payroll, VAT, company accounts, and strategic tax planning tailored to each client's goals. Through this website, I share practical guidance on UK taxation, Making Tax Digital, HMRC updates, Corporation Tax, Self-Assessment, and business finance. My aim is to provide reliable, straightforward information that helps business owners understand changing regulations, reduce compliance risks, and make informed financial decisions with confidence.
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