INTM161230 - UK residents with foreign income or gains: double taxation relief: Overseas branches
Before it was amended by FA 2011, TIOPA10/S43 applied the permanent establishment (PE) provisions of Chapter 4, Part 2 CTA 09 (previously ICTA88/S11AA) in determining for the purposes of S42(2) how much of a UK resident company’s chargeable profits was attributable to an overseas PE of the company. This replicated the treatment of UK branches of non-resident companies, including the attribution of capital (see INTM267120+), for overseas branches of UK companies for the purposes of calculating the UK measure of profits for DTR purposes
See INTM281000 for detail on the approach under TIOPA10/S43 as amended by FA 2011.