Why significant people functions, corporate residence and permanent establishment must be tested separately — even when they arise from the same evidence

In my previous article, I considered an international group whose transfer pricing review had opened a controlled foreign company question.

The overseas principal legally owned the group’s intellectual property, contractually assumed its principal commercial risks and retained the residual profit.

The UK company employed much of the management and operational workforce.

The documentation described the UK company as providing routine services.

The evidence showed something more complicated.

Commercially significant decisions concerning product development, investment and risk had frequently been formulated in the United Kingdom before being formally approved overseas.

That led first to a transfer pricing review.

It then led to a Chapter 4 CFC analysis.

The group traced the residual profit back to the assets, risks and significant people functions that had generated it and reconsidered how much of that profit could properly remain with the overseas principal.

But once that work had been completed, another question became impossible to ignore.

If so many important decisions were actually being taken in the United Kingdom, was the overseas principal merely exposed under the CFC rules — or was there a more fundamental UK tax presence?

The answer required the group to consider two further questions:

Was the foreign company itself UK tax resident?

And, if it remained non-UK resident:

Did it nevertheless have a UK permanent establishment?

Those questions used much of the same evidence.

They did not use the same legal tests.

The residence question came before the permanent establishment question

The order matters.

A permanent establishment analysis starts from the proposition that the enterprise is non-resident but carries on sufficient activity in another jurisdiction to create a taxable presence there.

Corporate residence asks something more fundamental.

For a foreign-incorporated company, the UK common-law test considers where the company’s central management and control actually abides.

HMRC describes this as the highest level of control of the business.

The location stated in the articles of association is not determinative.

The registered office is not determinative.

The jurisdiction in which the board meeting physically occurs is not, by itself, determinative.

The question is ultimately one of fact.

Where is the business really controlled?

That immediately brought the group back to the evidence that had created its transfer pricing and CFC problems.

But it was important not to collapse the tests into one another.

A UK significant people function does not automatically create UK residence

This distinction is critical.

A significant people function under the Chapter 4 CFC analysis is connected with particular assets and risks.

It asks who performs the economically significant functions relating to the assumption, management or control of a particular risk, or the economic ownership and exploitation of an asset.

Central management and control looks higher.

It is concerned with the pinnacle of corporate control.

A company might therefore have significant people functions performed in the United Kingdom without its central management and control being located here.

For example, a UK executive might control a particular technology-development risk while an overseas board genuinely determines the overall business strategy, capital allocation, acquisitions, financing, senior appointments and major commercial policies of the foreign company.

That may create a Chapter 4 question.

It does not necessarily make the foreign company UK resident.

The converse problem arises where the overseas board exists formally but does not, in practice, exercise the powers allocated to it.

That was the issue the group now had to test.

The question was not where the board met

The overseas company had monthly board meetings.

The directors were resident overseas.

Minutes were prepared.

Investment proposals were approved.

Budgets were formally adopted.

On a conventional substance checklist, the position initially looked respectable.

The contemporaneous evidence told a more nuanced story.

Before some board meetings, UK executives had already:

identified the commercial opportunity;

selected the preferred strategy;

agreed the commercial parameters;

instructed the operational teams;

negotiated important terms with suppliers or customers;

authorised preliminary expenditure; and

communicated the expected timetable internally.

The board papers then documented a proposal that was already very difficult, commercially, to change.

That distinction matters.

There is nothing inherently problematic about directors relying on recommendations prepared by management.

Boards are entitled to receive advice.

They are entitled to delegate.

They are entitled to approve proposals developed by employees elsewhere in the group.

The tax problem arises when the evidence shows that the board has ceased to exercise the relevant controlling function and merely records decisions effectively taken by somebody else.

The corporate residence question therefore became:

Did the overseas directors consider and determine the important matters of the company, or did they merely formalise decisions already made in the United Kingdom?

That is a substantially more demanding enquiry than asking where the minutes were signed.

Advice, influence and control had to be separated

The group then reviewed its governance process transaction by transaction.

This exposed another important distinction.

A UK parent, shareholder or senior executive can exercise significant influence over a foreign subsidiary without necessarily taking over its central management and control.

International groups inevitably operate through reporting lines, group policies and strategic coordination.

The existence of group influence does not eliminate the separate corporate personality of a subsidiary.

The question becomes more difficult where influence turns into effective control.

The review therefore examined whether the overseas directors possessed sufficient information to reach their own conclusions.

Could they reject the UK recommendation?

Had they ever done so?

Were genuine alternatives presented?

Did the directors understand the financial and commercial consequences?

Were they involved before the decision became operationally irreversible?

Did they control implementation following approval?

And who was responsible when the commercial risk subsequently materialised?

The answers differed depending on the decision.

That was significant.

Corporate residence could not safely be analysed through a generic statement that “strategic decisions are made overseas”.

The group needed evidence of what that statement meant in practice.

Dual residence did not necessarily resolve the problem

The overseas company was also regarded as resident in its jurisdiction of incorporation under local law.

That meant the domestic UK residence analysis was not necessarily the final step.

If UK central management and control existed alongside foreign residence, the relevant double taxation agreement had to be considered.

Depending upon the particular treaty, the corporate residence tie-breaker might refer to the place of effective management or require the competent authorities of the two jurisdictions to determine treaty residence by mutual agreement.

That distinction matters.

Central management and control and place of effective management should not simply be treated as interchangeable expressions.

Nor should groups assume that a competent-authority tie-breaker will automatically allocate residence to the jurisdiction of incorporation.

HMRC’s guidance indicates that, where competent-authority agreement is required, factors potentially considered can include central management and control, place of effective management, the location of business activities, employees, offices and the company’s wider economic connections.

The treaty therefore needed to be examined separately.

There was no generic “board meetings overseas” answer.

If the company remained foreign, the permanent establishment question began

Assume that, after the residence and treaty analysis, the overseas principal remained non-UK resident.

The review was still not finished.

The next question was whether its activities in the United Kingdom constituted a permanent establishment.

Broadly, the UK rules recognise two principal routes.

The first is a fixed place of business permanent establishment.

The second is a dependent agent permanent establishment.

Again, neither followed automatically from the transfer pricing or CFC findings.

A UK subsidiary does not automatically constitute a permanent establishment of its foreign parent.

A group company may have substantial premises and employees in the United Kingdom without those premises being at the disposal of the foreign enterprise or its business being carried on through them.

The facts therefore had to be tested.

Did senior personnel of the overseas principal regularly work from the UK company’s offices?

Were those offices effectively available for conducting the foreign company’s business?

Which activities were performed there?

Were those activities part of the core business of the foreign enterprise, or merely preparatory or auxiliary?

And whose business were the individuals actually carrying on when they performed them?

Those questions could not be answered from the intercompany agreement alone.

The dependent-agent question had become more important

There was then a second potential route to a UK PE.

The group’s UK executives had significant involvement in commercial negotiations undertaken for the overseas principal.

Historically, groups sometimes concentrated heavily on identifying the person who technically signed the final contract.

That approach is now particularly dangerous.

For chargeable periods beginning on or after 1 January 2026, the UK domestic dependent-agent PE provision has been updated.

The test can now apply where a person acting on behalf of the foreign company habitually concludes relevant contracts or habitually plays the principal role leading to contracts that the foreign company routinely concludes without material modification.

The practical significance is obvious.

An overseas director’s signature at the end of a negotiation does not necessarily establish that the commercial contracting activity occurred overseas.

Suppose a UK executive:

identifies the customer;

conducts the commercial negotiations;

determines the price parameters;

agrees the substantive commercial conditions;

resolves the customer’s objections; and

sends the agreed terms overseas for signature.

If the foreign company routinely accepts those terms without material modification, the place of formal execution becomes substantially less important to the domestic PE analysis.

The commercial process matters.

There is an important qualification.

The UK treaty network has not automatically changed simply because UK domestic law changed.

HMRC itself recognises, in its current TP&PDCF guidance, that although domestic PE law was updated from 1 January 2026, the UK’s treaty network remains largely unchanged and the domestic changes may therefore have limited effect where an applicable treaty provides narrower protection.

That makes treaty analysis essential.

The correct question is not:

Does the new UK domestic test apply?

It is:

Does a PE arise under UK domestic law and, if so, does the applicable treaty permit the United Kingdom to exercise that taxing right?

Signing contracts overseas was no longer the answer

This became one of the most useful findings from the review.

The group had historically relied heavily on three pieces of evidence:

the overseas company was the named contracting party;

its directors possessed the formal authority to execute contracts; and

contracts were signed outside the United Kingdom.

None of those facts was irrelevant.

None was conclusive.

The review instead reconstructed how each important contract actually came into existence.

Who originated the commercial relationship?

Who determined the negotiating parameters?

Who had authority to offer concessions?

Who negotiated the material terms?

What remained unresolved when the contract was sent overseas?

Could the overseas director genuinely alter those terms?

How frequently did that happen?

The answer was uncomfortable.

In several important customer relationships, the overseas signature represented the final legal act.

The commercial agreement had substantially been reached in London.

Finding a PE was still not the same as attributing all the foreign profit to the UK

This brought the group back to a principle that had already arisen in the CFC analysis.

A jurisdictional threshold is not a profit calculation.

Establishing that a UK permanent establishment exists does not mean that all of the foreign enterprise’s profits become taxable in the United Kingdom.

The profit attributable to the PE must still be determined.

HMRC’s permanent-establishment guidance applies the separate enterprise principle.

In broad terms, the UK operations are treated as if they were a distinct and separate enterprise dealing at arm’s length with the remainder of the foreign company and with connected parties.

That requires another functional and factual analysis.

Which functions were performed through the UK PE?

Which assets were economically connected with those functions?

Which risks belonged to the UK operations?

What capital would the hypothesised separate enterprise require?

And what profit would an independent enterprise performing those functions, using those assets and controlling those risks have earned?

Once again, the answer was not:

Foreign profit × UK management percentage.

The attribution had to follow the economics.

The group now needed a wider profit bridge

The earlier review had started with £18 million of profit reported by the overseas principal.

The transfer pricing analysis concluded that the UK company required an increased arm’s length reward.

The CFC analysis then considered which profits remaining offshore were connected with assets and risks supported by UK significant people functions.

The residence and PE review added further possible taxing mechanisms.

The group therefore could not prepare four independent calculations and add them together.

It needed one integrated reconciliation.

The sequence became:

1. Corporate residence

Determine first whether the overseas company was actually non-UK resident for domestic and treaty purposes.

2. Transfer pricing

Determine the appropriate arm’s length reward of the UK company for the functions it actually performed.

3. Permanent establishment

If the overseas company remained non-resident, determine whether it nevertheless carried on business through a UK fixed place or dependent agent and, if so, attribute the appropriate profits to that PE.

4. CFC

Where the company remained within the CFC regime, determine what profit, if any, passed through the relevant CFC gateway after considering the transfer pricing position, relevant UK activities and the statutory exemptions and exclusions.

The objective was not to maximise the number of UK taxing provisions potentially applicable.

It was to identify the provision that correctly taxed each part of the economic profit without creating inconsistent positions or double counting the same economic contribution.

That is what a defensible profit bridge is designed to achieve.

The historical and future answers were again different

As with the CFC analysis, governance improvements could protect future periods.

They could not reconstruct historical facts.

The group therefore divided the residence and PE work into separate periods.

For historical years, it retained the emails, calendars, draft contracts, investment papers, board packs and approval trails showing how decisions were actually made.

For the current period, it identified the date on which the governance model genuinely changed.

For future periods, it changed the decision-making process itself.

Important proposals were sent to the overseas directors before commitments were made.

Alternative courses of action were documented.

Commercial parameters were not treated as settled before approval.

Overseas directors were given direct access to the executives and information necessary to challenge recommendations.

Customer negotiations were reallocated where commercially appropriate.

Authority matrices were rewritten to reflect what individuals were actually expected to do.

Most importantly, the group stopped trying to solve operational substance problems through documentation alone.

That is rarely sustainable.

Three different tests can examine the same email

This is perhaps the broader lesson.

Consider an email from a UK executive stating:

“We have decided to proceed with Project X. Please prepare the board paper for approval next Thursday.”

That single sentence could be relevant to several different tax enquiries.

For transfer pricing, it may indicate which entity actually controlled the commercial risk.

For Chapter 4 CFC purposes, it may identify a UK significant people function relevant to a particular asset or risk.

For corporate residence, it may be evidence that the highest-level decision-making authority was being exercised in the United Kingdom.

For permanent-establishment purposes, in a different factual context, it may help demonstrate that the foreign enterprise’s business was being conducted through UK personnel or premises.

The evidence may be the same.

The legal questions are not.

That is why international tax reviews become dangerous when the workstreams are separated.

The transfer pricing team cannot analyse the facts as though residence does not exist.

The residence analysis cannot ignore the functions identified in the transfer pricing report.

The CFC review cannot simply assume that the foreign principal remains foreign.

And the PE analysis cannot stop once the existence threshold is met.

Each conclusion must be capable of existing alongside the others.

The question groups should now ask

Where an overseas principal receives substantial residual profit while senior UK personnel are heavily involved in its business, I would ask four questions in sequence.

First, where is the company’s highest level of management and control actually exercised?

Second, if the company is potentially resident in two jurisdictions, what does the relevant treaty actually do with that dual-residence position?

Third, if it remains non-UK resident, do the activities conducted in the United Kingdom create a fixed-place or dependent-agent PE under domestic law and the applicable treaty?

Fourth, after transfer pricing, PE attribution and CFC rules are applied in the correct sequence, where should the economic profit ultimately be taxed?

The answers need to reconcile.

If the transfer pricing report says the overseas principal controls the key risks, the CFC analysis says UK personnel control them, the residence file says the overseas board controls the entire business and the PE analysis says UK personnel have no meaningful authority, the group does not have four tax positions.

It has one factual inconsistency expressed four different ways.

HMRC increasingly has the information required to identify those inconsistencies.

The defensible position is therefore not the structure with the most elaborate documentation.

It is the structure in which the legal ownership, actual decision-making, contractual arrangements, transfer pricing, corporate residence, permanent-establishment analysis and allocation of profit describe the same commercial reality.

How Vectigalis AC Tax can assist

Vectigalis AC Tax advises UK and international groups on complex cross-border structures involving transfer pricing, controlled foreign companies, corporate residence, permanent establishments and profit attribution.

Our work includes reviewing the factual location of strategic and commercial decision-making; testing central management and control; analysing treaty residence and competent-authority considerations; assessing fixed-place and dependent-agent PE exposure; undertaking functional and control-over-risk analyses; reviewing Chapter 4 CFC exposure; modelling the interaction between transfer pricing, PE attribution and CFC charges; quantifying historical exposure; and redesigning governance and operating models so that future tax outcomes follow the commercial reality.

For groups with overseas principals, IP companies, regional headquarters, procurement hubs or other foreign entities supported by significant UK management activity, these issues should not be reviewed in isolation.

The relevant question is not simply where the company is incorporated or where the board meets.

It is where the business is actually controlled, where its economically significant activities take place, and whether the allocation of profit can be defended by reference to the contemporaneous evidence.

For a confidential discussion regarding your group’s UK transfer pricing, CFC, corporate residence or permanent-establishment position, please contact:

Angelo Chirulli, FCA, ADIT, TEP
Vectigalis AC Tax

Email: angelo@vectigalistax.co.uk
Website: www.vectigalistax.co.uk