Newsletter
Published 14 May 2026
© Crown copyright 2026
This publication is licensed under the terms of the Open Government Licence v3.0 except where otherwise stated. To view this licence, visit nationalarchives.gov.uk/doc/open-government-licence/version/3 or write to the Information Policy Team, The National Archives, Kew, London TW9 4DU, or email: psi@nationalarchives.gov.uk.
Where we have identified any third party copyright information you will need to obtain permission from the copyright holders concerned.
This publication is available at https://www.gov.uk/government/publications/mandatory-tax-adviser-registration-communications-resources/newsletter
This page contains information to use in your own newsletters and external communications to your members who interact with HMRC on behalf of their clients, about what they will need to do to comply with mandatory tax adviser registration.
Raising standards: new registration requirement for paid tax advisers
From 18 May 2026, HMRC is introducing mandatory registration for tax advisers who are paid to interact with HMRC on behalf of clients.
Most tax advisers already do the right thing. This change will create a fairer market for taxpayers and advisers who play by the rules, while replacing the current patchwork of registration routes with a single, streamlined digital system.
Do I need to register?
If you are paid to interact with HMRC about someone else’s tax affairs, you will need to register — regardless of whether you consider yourself a tax adviser. If you already have an Agent Services Account, no immediate action is required. HMRC will contact you through your account if any further information is needed.
When do I need to act?
HMRC is introducing the requirement to register in stages between May 2026 and April 2027. Once your registration window is open, you will have 3 months to complete the required steps. HMRC guidance on who needs to register, can be found on GOV.UK.