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About the service
Tax Litigation Solicitors
At GSP LAW, we provide strategic legal advice and representation in relation to complex tax disputes, contentious HMRC matters, and tax litigation proceedings for businesses, professionals, company directors, high-net-worth individuals, and private clients across the UK and internationally.
Tax disputes can be highly sensitive, financially significant, and reputationally damaging. Investigations and enforcement action by HMRC can place considerable pressure on businesses and individuals, particularly where allegations of deliberate conduct, offshore irregularities, or tax avoidance are involved.
Our litigation team delivers commercially focused and decisive legal advice designed to protect our clients’ financial, professional, and reputational interests. We understand the complexity of modern tax disputes and provide strategic representation throughout every stage of investigations, negotiations, tribunal proceedings, and litigation.
We regularly advise clients in matters involving domestic and international tax disputes, cross-border investigations, offshore disclosure issues, civil fraud allegations, and complex enforcement proceedings.
Our Tax Litigation Services
We advise clients in relation to a broad range of contentious tax matters including:
Our team acts for both corporate and private clients in straightforward and highly complex disputes involving substantial financial exposure.
HMRC Investigations & Disputes
HMRC possesses extensive investigative and enforcement powers, and early legal advice is often critical in protecting a client’s position.
We advise clients throughout all stages of HMRC enquiries and investigations, including:
- • Compliance checks
- • Information notices
- • Formal enquiries
- • Civil investigations
- • Allegations of deliberate conduct
- • Settlement negotiations
- • Interviews and meetings with HMRC
- • Appeals against assessments and penalties
Our solicitors work proactively to manage legal risk, challenge unreasonable assessments where appropriate, and negotiate practical resolutions wherever possible.
COP8 & COP9 Investigations
We regularly represent clients involved in Code of Practice 8 (COP8) and Code of Practice 9 (COP9) investigations.
These investigations can involve serious allegations concerning tax irregularities, offshore structures, concealed income, or suspected fraudulent conduct. Such matters require careful strategic management from the outset due to the potential financial, legal, and reputational consequences involved.
We provide advice in relation to:
- • Voluntary disclosures
- • Negotiations with HMRC
- • Financial evidence and documentation
- • Settlement strategy
- • Risk management
- • Asset protection considerations
- • Tribunal and litigation preparation
We understand the highly confidential and sensitive nature of these investigations and provide discreet, partner-led representation throughout.
Tax Tribunal Proceedings
Where disputes cannot be resolved directly with HMRC, matters may proceed before the First-tier Tax Tribunal, Upper Tribunal, or higher courts.
Our litigation team provides strategic representation throughout all stages of tax litigation including:
- • Appeals against HMRC decisions
- • Penalty appeals
- • Tribunal advocacy support
- • Preparation of witness and documentary evidence
- • Judicial review proceedings
- • Settlement negotiations
- • Enforcement disputes
We work closely with specialist advisers and counsel where appropriate to ensure clients receive comprehensive and commercially effective representation.
Offshore & International Tax Disputes
International reporting obligations and increased regulatory cooperation between jurisdictions have significantly increased HMRC scrutiny of offshore assets and international financial arrangements.
We advise clients involved in:
- • Offshore disclosure disputes
- • Overseas income investigations
- • Cross-border tax disputes
- • Cross-border tax disputes
- • Multi-jurisdictional investigations
- • Overseas corporate structures
- • International compliance issues
Our team understands the legal and commercial complexities involved in international tax disputes and provides coordinated strategic advice designed to protect our clients both domestically and internationally.
Civil Tax Fraud Matters
Allegations involving tax fraud or deliberate concealment can carry severe financial and reputational consequences.
We advise businesses and individuals facing allegations involving:
- • Deliberate understatement of tax liabilities
- • Offshore concealment
- • False declarations
- • False declarations
- • Tax avoidance arrangements
- • Serious financial irregularities
We understand the importance of protecting both legal and reputational interests and work proactively to manage disputes sensitively and effectively.
Strategic Tax Dispute Resolution
Tax disputes require careful legal and commercial management. Our approach is focused on achieving efficient and commercially sensible outcomes while protecting our clients from unnecessary escalation and exposure.
Where appropriate, we seek to resolve disputes through:
- • Negotiation
- • Settlement discussions
- • Alternative dispute resolution
- • Early engagement with HMRC
However, where litigation becomes necessary, we provide robust representation throughout the tribunal and court process.
Our Approach
At GSP LAW, we combine strong legal expertise with commercial awareness and strategic thinking. We understand that litigation can be costly, time-consuming, and distracting for businesses and individuals alike.
Our approach is focused on:
- Clear and practical legal advice
- Strong negotiation and advocacy
- Cost-effective dispute resolution
- Discreet and professional representation
- Commercially driven strategies
- Proactive case management
- Responsive client service
Why
Choose
GSP LAW?
- Strategic and commercially focused advice
- Experienced tax litigation solicitors
- Discreet handling of sensitive matters
- Strong tribunal and litigation expertise
- Cross-border dispute experience
- Responsive and partner-led service
- Practical and results-driven solutions
We are committed to delivering clear, effective legal representation tailored to the specific objectives and circumstances of every client we act for.
