UK: Public consultation on hybrid mismatches rule

The UK government has announced, on 21 May 2026, changes to the taxation of UK-resident companies who conduct part of their business through foreign permanent establishments (PEs). For most companies, it will be mandatory for profits and losses

The UK’s His Majesty’s Revenue and Customs (HMRC) issued new guidance on 19 May 2026 outlining a transitional approach to Global Information Return (GIR) filing and exchange under the OECD’s Pillar Two framework. The guidance follows the

The UK’s His Majesty’s Revenue and Customs (HMRC) has opened a consultation on 18 May 2026 about the draft regulations designed to support the application of inheritance tax (IHT) to unused pension funds. This technical consultation seeks

UK’s HM Revenue and Customs (HMRC) has announced the introduction of a mandatory registration requirement for tax advisers, with implementation beginning on 18 May 2026. The new requirement, known as Modernising and Mandating Tax Adviser

The UK tax authority, His Majesty’s Revenue and Customs (HMRC) has published guidance on 12 May 2026 regarding the Advance Tax Certainty Service, which is scheduled to be launched on 1 July 2026. The Advance Tax Certainty Service is designed to

The UK HM Revenue & Customs (HMRC) updated its guidance on “How to report Pillar Two Top-up Taxes” on 14 May 2026, adding details of a testing period for the new information return service ahead of its launch on 19 May 2026. HMRC said the