International tax covers a vast array of complex matters and is continually evolving in the digital age. The support you need will depend on how your business operates and your plans for the future.

You may be expanding your UK business for the first time, or may be well established in a significant number of territories already. We work with businesses of all sizes to help them navigate the international tax environment.

Cross-border considerations are embedded into our tax thinking, and we can provide a dedicated, multi-disciplinary and, where required, multi-jurisdictional team to help you deliver on both your international tax requirements and wider business strategy.

Why Grant Thornton

We are friendly, knowledgeable and supportive in helping you navigate your choices. Understanding how new and online trading models are taxed can be a minefield, which is why we really get to know your business model and future plans, ensuring you stay compliant and can plan ahead.


You’ll be supported by people with deep international tax expertise, across the UK and internationally. Our global network runs across 135 countries to bring you the joined up international tax advice you need.


We work closely with our colleagues across the Grant Thornton International network to provide businesses with relevant interjurisdictional tax advice. Expanding abroad doesn't mean going it alone, uncover how we can help you.

Our experienced international tax advisers can help your business navigate a range of issues across international tax, including:

Global minimum tax / Pillar 2

New Pillar 2 rules will fundamentally change the international tax landscape and we have developed a five-stage process to support you throughout your Pillar 2 journey. Whether you are right at the beginning or have started to look at how the new rules may impact your group, we can tailor our approach to fit your needs.  

Structuring and financing overseas expansion

This may be an initial move overseas or a more fundamental restructure of international operations. We guide you through the complexities that come with working cross-border in a digital age from a direct and international tax perspective, as well as various reporting requirements and changes in tax base introduced post-BEPS (base erosion and profit shifting).

Hybrid mismatch regulations

Understanding group structures and intragroup transactions – and how these could be caught under the anti-hybrid mismatch regulations.

Corporate residence

Identifying and managing potential residency risks to ensure your business is compliant with relevant reporting obligations and managing ‘exit charge’ risks.

Managing your overseas tax exposures

Identifying where companies could be creating a taxable presence outside the territory of company residence - permanent establishments - and ensuring any local tax requirements are met, including appropriate allocation of profits to the permanent establishment. Ensuring groups are compliant with the controlled foreign company (CFC) regulations, any appropriate disclosures are made in company tax returns and CFC charges are paid where applicable.

Profit repatriation

Reviewing cross-border transactions and profit repatriation policies to identify and manage any withholding tax risks. Also, analysing treaty positions and where applicable that the appropriate tax is withheld.

Transfer pricing

Helping in the design, development, documentation and defending transfer pricing policies for your business. Find out more on transfer pricing.

Globally mobility services

Ensuring your business is able to move people cross-border, capitalising on opportunities, while managing the associated costs and risks. Read more about our global mobility services.

International indirect tax

Ensuring your business can effectively navigate the complex system of global indirect tax rules. Find out more on how we can help you with indirect tax.

International pension tax advisory

Supporting employers, international corporate trustees and executives on the cross-border taxation of company reward structures (shares plans, LTIPs, Employee Benefit Trusts, retirement and company benefit plans) including the establishment, deductibility and taxation of such plans.

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