International Tax Advisers

Global Tax Expertise for UK Businesses Expanding Internationally

At Accountancy Business & Taxation Services (ABTS), we provide specialist international tax advisory services to help UK businesses navigate cross-border tax rules with confidence. Our team combines deep UK tax knowledge with practical international expertise to minimise liabilities, ensure compliance, and support your global ambitions.

Whether you are exporting, establishing overseas operations, managing international teams, or handling cross-border transactions, we deliver clear, strategic advice tailored to your business.

Understanding International Tax Advisory

International tax advisory helps businesses manage the tax implications of operating across multiple countries. It addresses issues such as double taxation, foreign tax credits, transfer pricing, and compliance with global standards like the OECD’s Pillar Two global minimum tax rules.

In today’s interconnected economy, expanding beyond the UK brings opportunities — but also complexity. Without expert guidance, businesses risk paying tax twice on the same income, facing unexpected liabilities, or falling foul of strict reporting requirements. Our service ensures your international activities are structured efficiently and compliantly.

Key Benefits of Working With ABTS
Clients who engage our international tax services typically achieve

Reduced overall tax burden through legitimate planning and treaty relief
Lower compliance risk and protection against penalties and interest
Improved cash flow by avoiding unnecessary tax payments and securing timely reliefs
Greater strategic clarity when making expansion, investment, or operational decisions
Peace of mind from knowing their international tax affairs are handled proactively by specialists

Our International Tax Services

We offer a comprehensive suite of international tax solutions designed for UK-based businesses:

  • Cross-Border Tax Planning — Structuring operations, transactions, and investments to optimise your overall tax position while remaining fully compliant.
  • Double Tax Treaty Navigation — Leveraging the UK’s extensive network of over 130 double tax treaties to reduce or eliminate double taxation on income, dividends, royalties, and gains.
  • Transfer Pricing — Ensuring inter-company transactions meet arm’s length principles with robust documentation, especially important under the UK’s updated 2026 rules aligned with OECD standards.
  • Permanent Establishment (PE) Advice — Assessing and managing the risk of creating a taxable presence overseas, with guidance on updated UK permanent establishment definitions.
  • Pillar Two & Global Minimum Tax Compliance — Support for multinational groups with the OECD’s 15% global minimum tax rules, including UK filings and strategic planning.
  • Withholding Taxes & Foreign Tax Relief — Advice on reclaiming or reducing withholding taxes on cross-border payments and claiming appropriate reliefs.
  • International Business Structuring — Tax-efficient advice on overseas entity setup, acquisitions, restructurings, and exits.
  • Expatriate & Mobile Workforce Tax — Guidance for employees working abroad or foreign nationals in the UK, covering residency, employment taxes, and social security.
  • HMRC & Overseas Authority Liaison — Professional representation and support during international tax enquiries or disputes.

Key Benefits of Working With ABTS

Clients who engage our international tax services typically achieve:

  • Reduced overall tax burden through legitimate planning and treaty relief
  • Lower compliance risk and protection against penalties and interest
  • Improved cash flow by avoiding unnecessary tax payments and securing timely reliefs
  • Greater strategic clarity when making expansion, investment, or operational decisions
  • Peace of mind from knowing their international tax affairs are handled proactively by specialists

Who We Support

Our international tax advisory services are ideal for:

  • UK SMEs expanding into new overseas markets or increasing export activities
  • Owner-managed businesses with international suppliers, customers, or subsidiaries
  • Growing companies entering mergers, acquisitions, or joint ventures abroad
  • Groups subject to Pillar Two rules or managing global talent
  • Businesses facing complex cross-border supply chains or intellectual property arrangements

Common International Tax Challenges We Solve

Many businesses encounter issues such as:

  • Uncertainty about whether overseas activities create a taxable permanent establishment
  • Complex transfer pricing documentation requirements and potential adjustments
  • Double taxation on foreign income without proper treaty relief
  • Keeping up with evolving global rules, including Pillar Two and updated UK legislation effective from 2026
  • Managing tax obligations for international employees and contractors

We help turn these challenges into manageable, well-planned processes.

Ready to Secure Your International Tax Position?

Expanding globally should drive growth — not create unnecessary tax risk or complexity.

Book your no-obligation International Tax Consultation today.

In your initial meeting, we will:

  • Understand your current or planned international activities
  • Highlight key risks and opportunities specific to your situation
  • Provide initial guidance on how we can support your objectives
  • Outline a clear plan with next steps

Contact the ABTS International Tax team now to arrange your consultation. Call [Insert Phone Number] or complete the form below.

ABTS — Specialist UK International Tax Advisers

Global reach. Local expertise. Trusted results.

Take control of your cross-border tax affairs