UK tax risks for directors serving on overseas boards
Context and Challenge
UK-resident individuals regularly accept directorships of overseas companies. The appointment may be for a subsidiary within a group, a private equity portfolio company, a joint venture vehicle or an unconnected overseas business. The main challenge is that a UK-resident individual is usually subject to UK tax on worldwide income, including directors' fees, equity, benefits and expense reimbursements received from overseas companies. At the same time, the country where the overseas company is incorporated or tax-resident may also tax the directors' fees under its domestic laws or under the directors' fees article of the applicable double taxation treaty. Common symptoms include unreported overseas director fees, missing foreign tax credit claims, unexpected overseas withholding, unclaimed treaty relief, social security confusion and inconsistency between UK and overseas reporting.
Who Should Read This
UK-resident directors holding overseas board appointments, overseas companies appointing UK-resident directors, company secretaries, boards, C-Suite, Chairs, HR directors, finance directors, remuneration committees, tax advisers, immigration advisers and professional advisers dealing with cross-border board appointments.
Core Finding and Summary
A UK-resident director serving on an overseas company board is subject to UK income tax on the worldwide directors' fees, equity, expenses and benefits connected with that appointment. The overseas country may also tax the fees under its domestic law or the directors' fees article of the applicable treaty. Double taxation relief may be available but must be claimed. Review before appointment, report in both jurisdictions and coordinate the social security position.
In practice: Treat any overseas board appointment of a UK-resident individual as creating UK reporting obligations and potential dual-country taxation requiring treaty analysis, foreign tax credit claims and social security coordination.
Technical reference: OECD Model Tax Convention Article 16 (directors' fees)
Decision point:
Is the individual UK-resident, what remuneration, expenses or benefits are connected with the overseas directorship, does the overseas country also tax these, is treaty relief available, has the social security position been determined, and has both the UK and overseas filing and payroll positions been reviewed?
The Issue
What triggers the issue?
A UK-resident individual holds a directorship of an overseas company and is subject to UK worldwide taxation and potential source-country taxation.
Why does it matter?
Non-compliance can lead to tax penalties, missed foreign tax credit claims, dual payroll withholding, social security exposure, governance failures and unexpected costs.
What decision is needed?
Determine UK reporting, overseas reporting, treaty interaction, foreign tax credit position, payroll and social security obligations and commercial cost allocation.
Technical Analysis
1.Legal and tax position
A UK-resident individual is usually subject to UK income tax on worldwide income. This includes directors' fees, committee fees, equity, deferred remuneration, consulting payments, advisory retainers, expense like travel and acccommodation funded by the employer and benefits received from a company/employer in respect of an overseas directorship.
The overseas country where the company is incorporated or tax-resident may also tax the directors' fees and this remuneration in addition to the UK. Most double taxation treaties contain a directors' fees article, commonly based on Article 16 of the OECD Model Tax Convention. Article 16 provides that directors' fees and other similar payments derived by a resident of one state in the capacity of a member of the board of directors of a company resident in the other state may be taxed in that other state. The effect is that both countries may have a taxing right. The directors' fees article overrides the general employment article for income received in the capacity of a director.
Where the overseas country taxes the director fees under its domestic law or the treaty, and the UK also taxes the same income as worldwide income, double taxation arises. The UK-resident director should be able to claim foreign tax credit relief in the UK for the overseas tax paid, subject to the terms of the treaty and the conditions for credit relief under UK domestic law. The foreign tax credit is not automatic — it must be claimed on the UK Self Assessment return.
Other types of income such as employment income or consulting income may be covered by different rules and articles in a tax treaty compounding the complexity.
The position is therefore not straightforward. Some countries apply withholding tax to directors' fees and other income at source. Others require the director to file a local tax return. Some treat directors as employees, others as office holders, and some as self-employed. The classification can affect the rate of tax, the availability of deductions and the social security treatment. The UK and overseas positions may not align.
Where a director receives no separately stated fee from the overseas company but performs overseas board duties as part of a wider group role, the position requires careful analysis. HMRC expects UK-resident individuals to report worldwide income. The overseas tax authority may seek to allocate part of the director's remuneration to the overseas board role. Expenses reimbursed or paid for by the employer, such as travel and accommodation while performing the overseas role, can be treated as taxable income in some situations.
2.Employer obligations
The overseas company appointing a UK-resident director should consider its own domestic obligations. In many jurisdictions, the appointing company must operate local payroll withholding on directors' fees and other remuneration, report benefits and file employer returns. The obligations may arise regardless of whether the director is resident in that country.
The UK employer, where one exists within the group, should also consider whether any adjustment to UK PAYE is required. Where a UK-resident director receives overseas director fees that are also subject to UK tax, the UK employer may need to account for the income through UK payroll or the director may need to report it through Self Assessment. Where the director receives a global remuneration package that includes the overseas board role, the allocation between UK and overseas duties may require analysis.
Dual reporting can arise where the overseas country requires local withholding or reporting and the UK also taxes the income. In some cases, more than two reporting layers may exist — for example, where a UK-resident director serves on the boards of companies in multiple overseas jurisdictions simultaneously. Each jurisdiction may have its own withholding, reporting and filing requirements. The position is especially complex where the overseas country has federal, state, cantonal or regional tax systems.
The commercial agreement should specify who bears the cost of dual taxation and whether the overseas company or the UK employer provides tax support, gross-up or equalisation. Silence on this point creates later dispute and cost uncertainty. Company law can also say whether a company is permitted to pay taxes on behalf of a statutory director.
3.Employee and individual consequences
A UK-resident director holding an overseas board appointment must usually report their worldwide income including what is considered as income for the overseas director role, on their UK Self Assessment return. This includes fees and other income and expenses paid in foreign currency, which must be converted to sterling. The director must also claim any foreign tax credit relief on the UK return, supported by evidence of the overseas tax paid or withheld.
The director should also consider whether they have filing obligations in the overseas jurisdiction. Many countries require directors of locally incorporated or locally tax-resident companies to file a personal tax return, even where the director is not resident in that country. Failure to file in the overseas jurisdiction can create penalties, and the director may not be able to claim foreign tax credit relief in the UK without evidence of the overseas tax liability.
Timing differences between the UK and overseas tax years can create cash flow and credit matching issues. The UK tax year runs from 6 April to 5 April. Many overseas jurisdictions use a calendar year. Where the overseas tax is assessed or paid in a different period from the UK year in which the income arises, the foreign tax credit claim may need to be spread or adjusted.
Equity received from the overseas company — including share awards, options, RSUs and restricted shares — may require separate UK reporting. Employment-related securities rules may apply even though the director is appointed to an overseas board. The interaction between UK Employment Related Securities reporting and overseas equity reporting can be complex, particularly where vesting or exercise straddles multiple tax years or involves different tax treatments in each jurisdiction.
4.Evidence and reporting requirements
The UK-resident director and, where relevant, the UK employer should maintain a clear record of the overseas directorship covering appointment documentation, duty records, remuneration structure, paying entity, overseas board meeting dates and locations, travel records, expenses and reimbursement processes, overseas tax returns filed, overseas tax paid or withheld, foreign tax credit claims made on the UK return, social security position and certificates, and any tax cost allocation agreement.
The overseas appointing company should maintain equivalent records from its perspective, including the basis for any withholding, the filing position adopted and confirmation that the UK-resident director has been informed of the local obligations.
Where a UK-resident director serves on multiple overseas boards simultaneously, each appointment should have its own documentation trail. The aggregate worldwide income must be reported on a single UK Self Assessment return, with foreign tax credits claimed on a source-by-source or aggregate basis depending on the method elected.
Good documentation provides some protection to both the director and the appointing company. Where the overseas tax authority or HMRC raises an enquiry, contemporaneous records reduce the risk of penalties and support the position taken.
5.Practical controls
Travel to overseas board meetings creates practical issues that differ from those for non-resident directors visiting the UK. A UK-resident director travelling overseas for board meetings may incur travel, accommodation, subsistence and other costs. The tax treatment of those costs may differ between the UK and the overseas jurisdiction. The director may be able to claim a deduction for travel to a temporary workplace in one jurisdiction, but as taxable if treated as a permanent workplace if the director attends regularly in the other jurisdiction, or both, or neither. Each country may treat the same travel differently under its domestic rules.
Social security is a significant practical issue. The UK-resident director may remain within the UK National Insurance system. However, the overseas country may also seek to impose its own social security contributions on the directors' fees. Where a bilateral social security agreement or EU/EEA regulation applies, a certificate (A1 or Certificate of Coverage) may confirm that the director remains subject to the social security system of one country only. Where no agreement exists, the director may face dual contributions. The classification of the director — as employee, office holder or self-employed — may differ between countries, which can affect which social security system applies and whether an exemption certificate can be obtained.
The UK-resident director should review the social security position before the first overseas board meeting. Retrospective correction of social security mismatches is difficult and can result in irrecoverable contributions.
Immigration should also be considered. Regular travel to an overseas country for board meetings may trigger local work permit or visa requirements, depending on the country's immigration rules and the nature of the board duties performed.
Case Scenario:
UK-Resident Director on a Swiss Company Board
Situation: A UK-resident individual is appointed as a non-executive director of a Swiss-incorporated company. The director attends four board meetings per year in Zurich. The Swiss company pays an annual board fee of CHF 80,000 and reimburses flights and hotel accommodation for each visit. The director also holds share options granted by the Swiss company.
Issue: Whether UK tax, overseas tax, social security and dual reporting obligations arise, and how these interact.
Analysis: The director is UK-resident and subject to UK tax on worldwide income. The CHF 80,000 board fee must be reported on the UK Self Assessment return in sterling. Switzerland may also tax the directors' fees under Article 16 of the UK–Switzerland double taxation treaty. Swiss withholding tax may also apply. The director should try to claim foreign tax credit relief in the UK for Swiss tax paid. Reimbursed flights and accommodation may be taxable in Switzerland and may also require UK analysis. The share options require UK Employment Related Securities reporting and may also require Swiss reporting. Social security should be reviewed under the UK–Switzerland bilateral agreement.
Outcome: The board fee is likely taxable in both the UK and Switzerland. Foreign tax credit relief should then be claimed in the UK. Swiss withholding and filing obligations may apply. Share options may require dual reporting. A social security certificate should be obtained. UK and Swiss domestic tax advice is required.
Lesson: An overseas board appointment for a UK-resident director creates obligations in at least two countries. Both the UK and overseas positions should be reviewed before the first board meeting, and specialist advice is required in the UK and overseas jurisdiction.
Fenton International's Advisory Position
Technical position:
UK income tax applies to worldwide directors' fees, income, equity and benefits received by a UK-resident individual from an overseas company. The overseas country may also tax the fees and income under its domestic law or the applicable treaty directors' fees article. Double taxation relief must be claimed.
Professional judgement required?
Yes — depends on the treaty provisions, the classification of the director in each jurisdiction, the remuneration structure, the social security agreements in force, the availability and method of foreign tax credit relief, and the interaction between UK and overseas reporting rules.
Main risks:
Unreported overseas income.
Missed foreign tax credit claims.
Unexpected overseas withholding.
Social security mismatch.
Dual contribution exposure.
Equity reporting failures.
Unexpected costs.
Governance failure.
Reputational risk.
Evidence needed:
Appointment documentation.
Overseas board meeting records.
Remuneration analysis.
Overseas tax returns and tax paid.
UK Self Assessment return.
Foreign tax credit calculations.
Social security certificates.
Equity records.
Tax cost allocation agreement.
Recommended controls:
Pre-appointment tax and social security review.
Treaty analysis for each overseas jurisdiction.
UK Self Assessment monitoring.
Foreign tax credit claim process.
Overseas filing monitoring.
Social security certificate procurement.
Equity reporting coordination.
Documented tax cost allocation.
Annual review cycle.
Governance reporting.
Professional Judgement & Advisory Application
Professional judgement is required where the income article and directors' fees articles of the applicable treaty does not clearly cover the type of payment received, or where no tax treaty exists, for example where the director receives consulting fees, advisory retainers or equity in addition to a standard board fee; where the overseas country's classification of the director differs from the UK classification, where the payroll or social security position is unclear or because multiple overseas appointments create competing claims, where the foreign tax credit calculation involves timing differences or currency conversion issues, or where the commercial agreement on tax cost allocation is silent or ambiguous.
Fenton International's judgement and recommendation: review the UK tax, overseas tax, treaty, payroll, social security and filing position for each overseas board appointment before the director accepts the role or attends the first overseas board meeting. Document the worldwide remuneration, the basis for the position taken in each jurisdiction, and the agreement on who bears the tax cost. Implement annual review controls. For directors holding multiple overseas appointments simultaneously, maintain a consolidated compliance tracker.
Frequently Asked Questions
Must a UK-resident director report overseas directors' fees on a UK tax return?
A UK-resident individual is usually subject to UK income tax on worldwide income. Directors' fees and other types of income received from an overseas company must be reported on the UK Self Assessment return in sterling. Failure to report can result in penalties even where the overseas country has already taxed the income.
Can a double taxation treaty prevent dual taxation on overseas directors' fees?
Most treaties allow both countries to tax directors' fees — the residence country and the country where the company is incorporated. The treaty does not usually prevent dual taxation on directors' fees but provides for relief, typically through a foreign tax credit in the country of residence. The director must claim the credit on the UK return. Other types of income such as consulting fees or stock options maybe covered by a different article in the tax treaty or there may be no treaty with the UK.
Does a UK-resident director need to file a tax return in the overseas country?
In many cases, yes. The overseas country may require the director to file a local tax return, even where tax has been withheld at source. The filing obligation depends on the overseas country's domestic law. Failure to file overseas can create penalties.
What social security obligations arise for a UK-resident director of an overseas company?
The UK-resident director normally remains within the UK National Insurance system. However, the overseas country may also seek to impose social security contributions. Where a bilateral agreement exists, a certificate can often confirm single-country coverage. Where no agreement applies, dual contributions may arise. The classification of the director — as employee, office holder or self-employed — may differ between countries, affecting which system has priority.
How Fenton Can Help
Fenton International advises directors, boards, employers and professional advisers on cross-border director tax, overseas directorship reporting, foreign tax credit claims, social security coordination, equity reporting and governance issues.
Cross-border director tax review
Treaty analysis and foreign tax credit advisory
Social security and National Insurance coordination
UK and overseas reporting alignment
Governance and board compliance advisory
Discuss this issue: Contact Fenton International for a cross-border director tax and overseas board compliance review
Author
Mark Abbs, CEO, Fenton International
Fellow of the Association of Taxation Technicians (FATT)
Enrolled Agent of the IRS (EA)
Global Mobility Specialist – Talent Management (GMS-T)
Accredited Expert Witness (MAE)
32+ years' experience in international tax, cross-border employment tax and global mobility
Advises CFOs, HRDs, and Chairs on cross-border tax governance
Head of Advisory at Global Tax Network
Former Tax Partner, Head of International and Senior Leadership Team at Blick Rothenberg and Senior Tax Adviser in the Big 4.
Key terms: UK-resident director, overseas directorship, worldwide taxation, directors' fees, Article 16, foreign tax credit, double taxation treaty, social security, A1 certificate, Employment Related Securities, cross-border board compliance.
Scope note: This Insight covers the UK tax, reporting, treaty, social security and filing position for UK-resident directors holding overseas board appointments. It does not cover non-resident directors of UK companies, permanent transfers overseas, individuals who are not UK-resident for tax purposes, or detailed domestic tax advice for any overseas jurisdiction. Overseas domestic tax advice is required separately in each relevant country. The FIG regime, which replaced the remittance basis from 6 April 2025, may be relevant for certain individuals but is outside the scope of this Insight.
Jurisdiction: UK, Multi | Last reviewed: June 2026 | Next review due: December 2026 | Insight type: Technical Guide
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This article is general information and not legal or tax advice. Professional advice should be taken for specific circumstances.
