This week's edition of Tax weekly highlights includes: (1) the Supreme Court’s decision in HFFX LLP, (2) News Analysis on the Court of Appeal’s decision in Bolt Services UK Ltd, (3) News Analyses on the UT’s decisions in (i) GCH Corporation Ltd, (ii) Barclays Services Corporation and (iii) Barclays Bank plc, (4) HMRC’s consultation on the International Controlled Transactions Schedule reporting requirement, (5) confirmation that the mandatory payrolling of benefits in kind will be phased in from 6 April 2027, and (6) updates to the Transfer Pricing and Profit Diversion Compliance Facility guidance.