Sean Bannister

PARTNER

HEAD OF TAX

EMAIL SEAN

+44 (0)20 7691 4135

+44 (0)7809 507434

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Sean Bannister, Head of Tax, leads a uniquely multidisciplinary team of tax advisers, accountants, and barristers, bringing together contentious and non-contentious tax expertise.

What distinguishes Sean’s practice is his ability to advise across the full tax lifecycle, from structuring, succession planning, and compliance through to HMRC enquiries, investigations, and disputes. His advisory work is informed by extensive contentious tax experience, while his disputes practice benefits from a deep technical understanding of tax law. This combination enables clients to structure their affairs confidently, knowing their tax positions are robust, defensible, and aligned to their wider commercial and personal objectives.

He acts for high-net-worth and ultra-high-net-worth individuals, families, entrepreneurs, trustees, and family offices, with a particular focus on internationally mobile clients and those with complex cross-border wealth structures, business interests, and succession planning considerations.

Clients and professional referrers value Sean’s technical expertise, commercial judgement, and pragmatic approach to complex tax issues. He regularly works alongside Edwin Coe’s private client, corporate, and disputes teams to deliver coordinated advice where personal, family, and commercial interests intersect.

Expertise

Tax Tax Advisory Services Tax Compliance Tax Disputes

Credentials

Recommended in the Citywealth Top 50 Tax Professional List 2025

Named as one of eprivateclient’s 50 Most Influential (2024)

Named in the Citywealth Global Top 100 Tax Professionals List 2023

Named in the Citywealth Leaders List

Top Recommended in Spear’s 500 2024

Winner of Wealth & Finance INTL – Best for Tax Dispute Resolution – UK

Chartered Tax Advisor

EXPERIENCE

Sean’s experience includes:

Advised on a non-UK life assurance policy holding over $100 million in overseas fund interests.

Restructured a non-UK trust owning a Central London residential property portfolio.

Planned the UK exit to Monaco for a non-dom individual ahead of deemed domicile changes.

Established a non-UK trust pre-April 2017 for a client approaching deemed domicile status.

Led a mixed fund cleanse for a non-dom repatriating funds to the UK.

Structured Business Investment Relief for a finance professional investing in a UK venture.

Advised on the sale of a UK business to maximise Entrepreneurs Relief and non-dom benefits.

Navigated the relevant loan regime for a non-UK collateral-backed property acquisition in London.

His client service is always first class and any queries I have had have been dealt with swiftly and with understanding.

eprivateclient 50 Most Influential 2024

Sean is approachable, professional and is utterly dedicated to helping his clients. By combining his practical experience in relation to disputes work and the knowledge base developed as a result of his advisory work, Sean is able to provide an unparalleled service to his clients.

eprivateclient 50 Most Influential 2024

Working with Sean has been an incredibly positive experience, and I believe his contributions have been invaluable to our clients. Sean has unique skills and knowledge of the tax issues that normally arise in the context of an individual’s expatriation.

eprivateclient 50 Most Influential 2024

Sean is able to cut through the noise and, where it is possible to do so, advise on robust solutions that are aligned to client needs rather than highlighting issues and problems that need to be addressed. This extends to identifying the issues that do not necessarily form part of Sean’s specialism but which are nonetheless essential to address in order to deliver a holistic solution.

eprivateclient 50 Most Influential 2024

Sean has a natural willingness to go above and beyond for clients. He has extreme technical nous enabling him to simplify complex tax/legal jargon into understandable/implementable actions making his advice second-to-none.

Citywealth Leaders List

Our relationship is a valued partnership going beyond the classic remit of a client/adviser relationship. Sean has outstanding technical knowledge. His advice is robust and aligned to client needs by delivering a holistic solution.

Citywealth Leaders List

The Tax team is rated for its professionalism and in depth knowledge of HMRC and its practices.

Client Feedback Survey 2023

I had complete peace of mind that the best outcome would be reached.

Client Feedback Survey 2020

Astute, approachable and professional, Sean will go on to be recognised as one of the ‘go to persons’ for tax matters in the UK.

eprivateclient's Top 35 Under 35 2015

Sean Bannister is a priceless asset you have.

Client Feedback Survey 2015

You totally delivered on what you promised – thank you.

David, Private Client

I appreciated the comfort and confidence that comes from putting ones affairs in the hands of experts.