HMRC will require tax advisors to register before representing clients from 18 May 2026, introducing mandatory eligibility criteria and phased implementation deadlines extending through December 2026.
Registration Requirements
Tax advisors must demonstrate clean tax compliance records with no outstanding issues or HMRC sanctions. All advisors must meet anti-money laundering supervision requirements as a condition of registration.
Organisations employing six or more officers must nominate at least five relevant individuals for registration under the new framework.
Implementation Timeline
Registration deadlines follow a phased approach based on business type, with the earliest deadline of 18 August 2026 and final compliance required by 31 December 2026. HMRC has indicated that detailed registration procedures will be published in separate guidance documents.
Context
The mandatory registration represents HMRC's latest effort to strengthen oversight of tax advisory services and enhance compliance standards across the UK tax profession. This development aligns with broader regulatory trends toward increased accountability and professional standards in tax advisory markets.
