US Personal Tax Services: UK Director's Fees, Treaty Rules

A US person who sits as a non-executive on a UK company board is taxed on those director's fees in both countries. The UK treats the fee as employment income from a UK office and expects PAYE; the US treats the same fee as self-employment income. The treaty allocates taxing rights but resolves neither the characterisation clash nor the sourcing clash on its own.

That double mismatch is why UK board fees generate more corrected returns among our clients than almost any other single income stream. It is a modest sum of money attached to a disproportionate amount of compliance, and it is routinely handled as though it were a consultancy invoice. Our US Personal Tax Services team at Jungle Tax prepares the returns that reconcile the two systems, and this guide sets out exactly how those returns should be built — and how to fix the years that were not.

Article 16 or Article 15? The numbering trap that starts most of these errors

Search for the treaty treatment of director's fees and you will be told, repeatedly and confidently, that Article 16 governs. That is correct for the OECD Model Tax Convention, where Article 16 is headed “Directors' fees”. It is not correct for the instrument that actually applies between Washington and London.

In the 2001 UK/US Double Taxation Convention the running order shifts. Income from employment sits at Article 14. Directors' fees sit at Article 15. Article 16 is Entertainers and Sportsmen — a different rule with a different policy purpose entirely. HMRC's own Double Taxation Relief manual reflects this split, indexing Article 15 to directors' fees and Article 16 to entertainers.

This is not pedantry. A treaty-based return position disclosed on the wrong article is a defective disclosure. Correspondence with HMRC or the IRS that cites Article 16 for a board fee immediately signals that the preparer was working from a generic model treaty rather than the operative convention, and it invites scrutiny of everything else in the file. If you take one technical point from this guide, take the article number.

What Article 15 actually permits

The provision is short and permissive. Director's fees and other similar payments derived by a resident of one state, in their capacity as a member of the board of directors of a company resident in the other state, may be taxed in that other state. Note the direction of travel: it is the residence of the company that opens the door, not the physical location of the director.

So for a US-resident non-executive on the board of a UK-incorporated, UK-resident company, the UK gets a taxing right over the fee. The word “may” does not mean optional — it means the UK is permitted to tax, and in practice the UK does. Article 15 offers no exemption, no de minimis, no day-count threshold and no relief for short visits. It is the one category of cross-border services income where the treaty gives the source state an essentially unconditional right.

Why HMRC taxes a US-resident non-executive at all

UK domestic law reaches the fee before the treaty is even consulted. A directorship is an office, and the earnings of an office are taxed as employment income under the UK employment income code. A non-resident is chargeable to UK tax on earnings from duties performed in the UK, so everything turns on where the duties of a UK directorship are treated as performed.

Where are the duties of a directorship performed?

HMRC's position is settled and, for most non-executives, unwelcome. Attending a board meeting is a fundamental duty of the office, not something incidental to a wider role performed elsewhere. HMRC's Employment Income Manual guidance on merely incidental duties states the point directly: when a director attends a meeting of the board, they perform a fundamental duty that is not merely incidental to other duties.

The practical consequence is that the “merely incidental” escape route, which genuinely helps many short-term business visitors, is closed to non-executives. A single day in a London boardroom is a day of UK duties, and the portion of the annual fee attributable to it is UK-taxable. Reading committee papers at home in Connecticut is a UK duty performed outside the UK, and that portion falls outside the UK charge — but only if you can evidence the split.

Apportioning the fee

Where a non-executive genuinely performs duties both inside and outside the UK, the annual fee is apportioned on a just and reasonable basis. There is no statutory formula. In practice HMRC expects a workday-based apportionment supported by contemporaneous records: board and committee calendars, meeting minutes recording attendance and location, travel itineraries, and any separate fee schedule for chairing a committee.

Two points are consistently missed. First, a director who dials into a UK board meeting from the United States is performing duties in the US for domestic apportionment purposes, but that does not remove the fee from the UK charge to the extent the treaty and domestic rules still bite — and it creates the sourcing problem discussed below. Second, if the non-executive holds several group directorships, fees must be traced to the specific company that pays them; a single blended fee across a UK parent and its overseas subsidiaries needs to be disaggregated before any apportionment is credible.

Does PAYE apply, and who operates it?

Yes, and the obligation sits with the UK company, not the director. The UK entity must operate PAYE on the fee attributable to UK duties, report it in real time, and account for the tax — even where the fee is paid from an overseas payroll or by a non-UK group entity, in which case the UK company is generally treated as making a notional payment.

The short-term business visitor relaxations that spare many inbound employees from UK payroll do not extend to board directors. Where a company expects only part of the fee to be UK-taxable, it can apply to HMRC for a direction permitting PAYE to be operated on a reduced proportion of the earnings. That application is made by the company, in advance, and it is the single most effective administrative step available — without it, PAYE is due on the whole fee and the director must reclaim the excess through Self Assessment.

HMRC cross-references Companies House appointment data against employer PAYE submissions. A US person appearing on a UK register with no corresponding payroll entry is a visible and easily generated enquiry. Where PAYE should have been operated and was not, HMRC can look back several years and pursue the company for tax, National Insurance, interest and penalties.

National Insurance: a separate question with a separate answer

Social security does not follow income tax, and this is where advisers who treat the two as one create real cost. UK National Insurance liability is determined by the UK/US Social Security Agreement — a distinct instrument from the tax treaty — together with UK domestic residence and presence rules.

A US-resident non-executive may fall outside UK Class 1 NIC entirely, or may be within it, depending on presence in the UK, the pattern of duties, and whether a certificate of coverage has been obtained from the US Social Security Administration. Where a certificate is in place, it should prevent a UK NIC charge on the same earnings. Where nobody applied for one, both employee and employer Class 1 NIC can arise on fees that carry no UK income tax at all — an outcome that surprises boards every time.

US versus UK treatment at a glance

Feature	United Kingdom (HMRC)	United States (IRS)
Legal character of the fee	Earnings from an office; employment income	Self-employment income from a trade or business
Collection mechanism	PAYE operated by the UK company, real-time reporting	No withholding; quarterly estimated tax by the individual
Where reported	Self Assessment return with the residence pages	Schedule C, with Schedule SE
Social security	Potential employee and employer Class 1 NIC	Self-employment tax on net earnings
Treaty article engaged	Article 15 (Directors' Fees)	Article 15, subject to the saving clause
Deemed place of duties	Board attendance is a UK duty; not merely incidental	Services income sourced strictly where performed
Expense relief	Restrictive employment expense rules	Ordinary and necessary business expenses on Schedule C
Tax year	6 April to 5 April	1 January to 31 December

How your US return should treat UK director's fees

Self-employment income, not wages

The US does not follow the UK's office-holder analysis. A corporate director is not an employee of the company for federal tax purposes in respect of board service; the fees are compensation for services performed in a trade or business carried on as an independent contractor. They belong on Schedule C, not on the wages line, and they flow through to Schedule SE.

This matters far beyond form selection. Because the fee is business income on the US side, the associated costs — professional subscriptions, directors' liability insurance borne personally, board-related travel not reimbursed, the professional fees of preparing the board-fee element of the return — are deductible against it. The UK employment expense rules are materially tighter. It is entirely normal, and entirely correct, for the net figure taxed in the US to differ from the UK taxable figure on the same fee.

Self-employment tax and the totalization agreement

Net earnings from board service are exposed to US self-employment tax unless the UK/US Social Security Agreement assigns coverage elsewhere. For a US person actually resident in the United States, US coverage is the normal outcome and self-employment tax applies. For a US citizen resident in the UK who also sits on UK boards, coverage typically belongs to the UK, and an HMRC-issued certificate of coverage attached to the US return supports the exemption from self-employment tax.

The failure mode we correct most often is a return that claims foreign tax credits for UK income tax and quietly ignores self-employment tax altogether. Foreign income tax credits do not reduce self-employment tax. Only the totalization agreement does, and only with the right certificate.

Does the foreign earned income exclusion help?

Rarely, and never as a first resort. The exclusion requires a tax home abroad plus either bona fide residence or physical presence. A US-resident non-executive who flies to London four times a year meets none of it. Even a US citizen genuinely resident in the UK who qualifies will find the exclusion covers only the portion of the fee earned for services performed outside the United States, does nothing about self-employment tax, and can be a worse answer than a properly constructed foreign tax credit where UK effective rates are high. For most board fees, the credit is the correct mechanism.

The sourcing trap that quietly breaks the foreign tax credit

This is the point that generalist guides on both sides of the Atlantic miss, and it is the one that costs money.

US law sources compensation for services strictly by where the services are physically performed. UK law and HMRC practice treat the duties of a UK directorship as substantially performed in the UK because that is where the board sits. When a US-resident non-executive attends board meetings remotely from a home office in the United States, the two systems reach opposite conclusions on the same fee: the UK taxes it as UK-duty income, while the US treats it as US-source income.

A foreign tax credit generally requires foreign-source income. US-source income taxed by the UK produces UK tax with no US foreign-source income to absorb it, and the credit fails. The result is genuine double taxation on a fee that the treaty was supposed to protect.

The answer is the re-sourcing rule in the Convention's relief from double taxation article, Article 24. Income that the UK may tax under the Convention is deemed, for foreign tax credit purposes, to arise in the UK to the extent necessary to relieve double taxation. Because Article 24 is among the provisions preserved against the saving clause in Article 1, a US citizen can rely on it notwithstanding that the saving clause otherwise permits the US to tax its citizens as if the treaty did not exist.

Mechanically, the re-sourced fee goes into its own foreign tax credit basket. The IRS confirms in its guidance on foreign tax credit special issues that a separate Form 1116 and a separate limitation must be computed for each amount of income re-sourced by treaty from each treaty country. A single Form 1116 lumping board fees in with general category income is technically wrong and will not survive examination. Our cross-border tax planning work on board appointments frequently begins by rebuilding exactly this calculation for prior years.

Do you need Form 8833?

A treaty-based return position that re-sources US-source income in order to claim a foreign tax credit is the kind of position that ordinarily requires disclosure on Form 8833, Treaty-Based Return Position Disclosure, under the section 6114 reporting rules. Certain positions are excepted from disclosure by regulation, so the analysis is position-specific rather than automatic — but the default posture for a re-sourcing claim on board fees should be to disclose, cite Article 24 alongside Article 15, and set out the facts. A short, accurate 8833 is cheap insurance. An undisclosed position is not.

The points that only appear on a high-net-worth return

Section 199A does not reach UK board fees

The qualified business income deduction is available for income from a qualified trade or business, which must be effectively connected with the conduct of a trade or business within the United States. Board fees earned for services performed in the UK do not qualify. Where a non-executive attends some meetings remotely from the US, a preparer may be tempted to claim the deduction on the US-performed portion; that portion may also be the portion being re-sourced to the UK for credit purposes, and the two positions sit awkwardly together. The interaction needs to be worked deliberately, not by software default.

State tax has no treaty

Tax treaties bind the federal government. Most states are not parties, and several — California prominent among them — tax residents on worldwide income while offering no credit for foreign taxes paid. A California-resident non-executive on a UK board can therefore pay UK income tax, receive full federal relief through a correctly re-sourced Form 1116, and still pay California tax on the same fee with nothing to offset it. The state charge is often the largest unrelieved cost in the whole arrangement and it never appears in UK-authored guidance.

Fees settled in shares

UK boards increasingly pay part of a non-executive fee in shares or deferred share awards. This is where the two systems diverge most violently. The UK employment-related securities rules can tax value on acquisition, on vesting, or on chargeable events, with elections available to fix the point of charge. The US taxes property transferred for services under its own timing rules, with its own election to accelerate the charge to grant.

The elections are not the same election, they are made to different authorities, and both are subject to short, unforgiving deadlines running from the acquisition date. Making one and not the other typically produces a permanent mismatch: income recognised in one country in year one and in the other in year three, with foreign tax credits that cannot reach across the gap. Any share-based non-executive award needs both filings modelled before signature.

Timing, currency and the tax-year mismatch

The UK tax year ends on 5 April; the US year ends on 31 December. A UK company paying quarterly fees will therefore report a different annual total to HMRC than the director reports to the IRS for any given period, and the UK tax generating the credit will frequently have been paid in a different US year from the income it relates to.

Two decisions follow. First, whether to claim foreign tax credits on the paid or accrued basis — the accrued basis aligns UK tax with the income it relates to far more cleanly for board fees, but the election is effectively binding for future years and should not be made casually. Second, the exchange rate convention: fees and the UK tax on them must be translated consistently, and a preparer who uses an average rate for income and a spot rate for tax will produce a credit figure that reconciles to nothing.

Where PAYE has over-collected because no reduced-proportion direction was in place, the UK repayment may arrive one or two years after the original US credit claim, requiring an amended US return to reduce the credit previously taken. Building that expectation into the file at the outset avoids an unpleasant discovery later.

What if UK director's fees were never reported?

This is the situation we are most often engaged to resolve, and it is usually innocent. The fee was modest, UK tax was deducted at source, the director assumed the matter closed, and nobody told the US preparer the UK board seat existed. Several years later a bank asks a question, or the fees are paid into a UK account whose balance has grown.

Correcting the US side

Unreported board fees rarely travel alone. The fee was paid somewhere, and that somewhere is usually a UK bank account — which brings FBAR and Form 8938 reporting into play, and often an ISA, a UK pension, or an investment account that was equally invisible. The correction is therefore almost never a single amended return.

For a non-willful failure, the IRS streamlined filing compliance procedures are the established route. The Foreign Offshore stream requires amended or delinquent returns for the most recent three years, FBARs for the most recent six, and a certification of non-willful conduct, and it carries no miscellaneous offshore penalty for those who qualify. Eligibility depends on non-willfulness and on not already being under examination, so the assessment must be made honestly and early. Our IRS streamlined filing team handles this work end to end.

Board fees carry a specific risk in a streamlined submission that ordinary passive income does not: the self-employment tax exposure. Amending three years to add Schedule C income without addressing Schedule SE, or without a certificate of coverage where UK social security applied, converts a clean disclosure into an incomplete one.

Correcting the UK side

Where UK tax was under-collected — typically because PAYE was operated on too little of the fee, or not at all — HMRC's digital disclosure facilities allow a voluntary correction. Unprompted disclosures attract materially lower penalties than those made after HMRC opens an enquiry, and the assessment time limits extend with the degree of culpability, running from the ordinary limit for innocent error through to a much longer window for deliberate behaviour.

The UK and US corrections should be sequenced, not run in parallel by separate advisers. The UK liability determines the foreign tax credit claimed on the US amended returns; finalising the US position before the UK figures settle guarantees a second round of amendments. Where a Self Assessment return is required, the residence pages must be completed and the fee reported gross with the PAYE credit claimed — and non-residents should not assume an entitlement to the UK personal allowance, which depends on nationality and treaty provisions rather than applying automatically.

A defensible sequence for a UK board appointment

• Before accepting. Establish the paying entity's residence, whether the fee is cash or part-share, and whether the company will apply for a reduced-proportion PAYE direction.
• At appointment. Apply for a certificate of coverage if US social security should govern, and diarise both the UK and US securities elections if any part of the fee is in shares.
• Throughout the year. Keep a workday log tied to board and committee calendars recording the location of every meeting, including those attended remotely.
• At the UK year end. Reconcile the P60 or PAYE record to the fee schedule, confirm the apportionment, and file Self Assessment with residence pages where required.
• At the US year end. Report on Schedule C, compute Schedule SE or claim totalization relief, prepare a dedicated re-sourced Form 1116, disclose the treaty position, and check the state exposure separately.

The mistakes we see most

• Citing Article 16 rather than Article 15 in correspondence or on a disclosure form.
• Reporting the fee as wages on the US return, which understates self-employment tax and misstates the expense position.
• Claiming a general-category foreign tax credit instead of a separate re-sourced Form 1116, then losing the credit on examination.
• Assuming the tax treaty settles the National Insurance question. It does not; the social security agreement does.
• Letting the UK company operate PAYE on the whole fee without a reduced-proportion direction, then never reclaiming the excess.
• Ignoring state tax, which is frequently the only genuinely unrelieved layer.
• Treating a UK board fee as too small to matter, when it is the thread that leads to unreported UK accounts, ISAs and pensions.

A single non-executive appointment can therefore touch the employment income code, the treaty, two social security systems, the foreign tax credit rules, the securities-for-services rules and a state revenue department. Handled at the outset it is straightforward. Handled retrospectively it is a disclosure. Our US-UK tax accountants prepare both, and our UK tax services team files the Self Assessment side so the two returns reconcile to each other rather than contradicting one another.

Speak to us in confidence

If you hold a UK board seat, are being offered one, or have fee years that were never reported on either return, we will review the position and tell you plainly what needs correcting and in what order. Consultations are confidential and conducted by senior cross-border preparers, not by a sales team. Contact our cross-border team to arrange a private discussion of your board fee position and any historic years that need to be brought current.