Brexit: UK's Supreme Court to hear arguments in December

International Tax Review is part of Legal Benchmarking Limited, 1-2 Paris Garden, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Brexit: UK's Supreme Court to hear arguments in December

Supreme Court

The UK’s highest court will convene on December 5 to hear the government's arguments against allowing MPs to vote on triggering Brexit. Debate over the best way to exit the European Union has multiple implications for tax and transfer pricing.

The UK's 11 Supreme Court justices will begin hearing four days of arguments starting December 5 to decide whether Parliament should have a say before the UK invokes Article 50 of the Lisbon Treaty, triggering formal EU withdrawal talks. The court’s ruling is expected to be delivered in 2017.

Prime Minister Theresa May has indicated she expects to start exit talks by the end of March but there has been confusion about whether May has the authority to proceed unilaterally after the High Court ruled last week that Parliament should have a say before the UK invokes Article 50.

The decision on how and when to leave the European Union could have two significant impacts on the transfer pricing environment in the UK: freedom from the relevant EU Directives, and movement of companies or financial and other assets, either into or out of the UK.

Multinationals will need to consider how the changes made during the exit negotiations affect their transfer pricing. In particular, companies will need to examine the impact of the UK no longer being subject to EU Directives and how assets and companies can be moved into, or out of, the UK.

“Depending on market sentiment after a Brexit, relative confidence in the UK economy may cause companies to move their assets or operations to or from the UK,” according to corporate finance adviser Duff & Phelps.

The transfer pricing implications and requirements that could include the following:

  • Debt capacity and interest rate reviews for new investments;

  • Comparison of alternative intellectual property (IP) holding jurisdictions, IP valuation and transfer and royalty rate reviews;

  • Supply chain reviews including risk allocation and centralisation of high value functions; and

  • Resolution of existing transfer pricing audits or litigation.

more across site & shared bottom lb ros

More from across our site

The arrival of Renan Ozturk and his team from A&M Tax introduces a unique proposition within the Middle East legal market, the firm said
The deal, reportedly worth $400m, will add Svalner Atlas’s 50-partner Nordic and Benelux presence to Ryan’s rapidly growing global footprint
The combined firm, which comprises over 1,400 lawyers, will boast robust tax practices in both the UK and US
Cascading tax reform, bullish foreign investment and vigorous TP audits have made Italy’s tax advisory market dynamic and stiffly competitive
As ITR data reveals that 2025 saw more than double the amount of private client hires than 2024, it seems firms are jostling for position
The US multinational paid 20% more tax in 2025 than 2024, it said; in other news, more than 25,000 HMRC staff have been upskilled on AI
Belt and Road Initiative countries face tax incentive conundrums due to pillar two, but relatively few countries would seek to scrap the project, ITR has heard
Hany Elnaggar examines how the OECD’s global minimum tax is reshaping the GCC’s investment incentive landscape, shifting the region from rate-based competition toward substance-driven economic positioning
The acquisition of a two-partner practice from Stephenson Harwood means that Charles Russell Speechlys has the largest private client team in Asia, the firm claimed
Complex and constantly shifting rules on global mobility mean ‘the risk is too great’ for staff to work abroad on personal time, EY’s Maureen Flood tells ITR
Gift this article