ATCS01100 - Advance Tax Certainty Service: Advance Tax Certainty: Introduction
Legislative reference
This manual is a guide to the Advance Tax Certainty Service as provided for by the advance tax clearances sections of Finance Act 2026.
Intention of guidance
This guidance has been produced to support both customers and HMRC colleagues in understanding how the Advance Tax Certainty Service works in practice.
It outlines which customers are eligible for the process, as well as the scope of taxes for which advance tax certainty can be provided.
This guidance only covers the Advance Tax Certainty Service and does not deal with other methods of obtaining a view on tax treatment from HMRC.
HMRC will continue to update this guidance as the service progresses.