“(1) A company not resident in the United Kingdom is within the charge to corporation tax if, and only if, it carries on a trade in the United Kingdom through a permanent establishment in the United Kingdom. (2) If it does so, it is chargeable to corporation tax, subject to any exceptions provided for by the Corporation Tax Acts, on all profits, wherever arising, that are attributable to its permanent establishment in the United Kingdom.”
“(1) This section provides for determining for the purposes of corporation tax the amount of the profits attributable to a permanent establishment in the United Kingdom of a company that is not resident in the United Kingdom (‘the non-resident company’). (2) There shall be attributed to the permanent establishment the profits it would have made if it were a distinct and separate enterprise, engaged in the same or similar activities under the same or similar conditions, dealing wholly independently with the non-resident company. (3) In applying subsection (2) – (a) it shall be assumed that the permanent establishment has the same credit rating as the non-resident company; and (b) it shall also be assumed that the permanent establishment has such equity and loan capital as it could reasonably be expected to have in the circumstances specified in that subsection. No deduction may be made in respect of costs in excess of those that would have been incurred on those assumptions.”
“(1) The profits of an enterprise of a Contracting State shall be taxable only in that State unless the enterprise carried on business in the other Contracting State through a permanent establishment situated therein. If the enterprise carries on business as aforesaid, the profits of the enterprise may be taxed in the other State but only so much of them as is attributable to that permanent establishment. (2) Subject to the provisions of paragraph (3) of this Article, where an enterprise of a Contracting State carries on business in the other Contracting State through a permanent establishment situated therein, there shall in each Contracting State be attributed to that permanent establishment the profits which it might be expected to make if it were a distinct and separate enterprise engaged in the same or similar activities under the same or similar conditions and dealing at arm’s length with the enterprise of which it is a permanent establishment. (3) In the determination of the profits of a permanent establishment, there shall be allowed as deductions expenses of the enterprise which are incurred for the purposes of the permanent establishment, including executive and general administrative expenses so incurred, whether in the State in which the permanent establishment is situated or elsewhere.”
“… in our view the Convention gives no authority to write into the branch accounts a level of capital which the branch does not have. To do this is to go against the scheme of Article III and the requirements of the paragraph (2) hypothesis that the United Kingdom branch is trading under ‘…the same or similar conditions…’. This directs that the actual conditions under which the United Kingdom branch trades are taken into account. It is those conditions which dictate the expenses in question. Accordingly the ‘notional interest formula’, under which interest is disallowed to the extent that the (actual) capital account of the branch falls short of an amount (estimated by the Revenue) which would be required as ‘free working capital’ by an independent banking enterprise is in our opinion unwarranted. The notional interest formula may very well result in the disallowance of actual expenditure which is attributable to the branch and that is something which Article III plainly does not authorise. … the formula may offer a convenient method of avoiding the difficulties involved in the allocation [of] actual receipts and expenses, but in our opinion it is not sound in law.”
“These arrangements were widely adopted at the time [ ie until the late 1970s], but it should I think be remembered that this was at a time when the London banking market was very different from today. In particular what was in mind broadly was what might be called ‘retail’ banking. The basic proposition that an independent enterprise would need to command significant free working capital came under challenge with the development of the Euromarkets. Many branches of foreign banks were established in London with the primary purpose of borrowing funds in London for on lending in London or to head office and they did not always need significant funds to be advanced from head office to enable them to do so. And for some years we have taken the view that since free capital is not required of a branch by the banking authorities in this country, to introduce the notional presence of such capital may well go beyond the scope of the arm’s length concept in the double taxation agreements having regard to the provision that the bank and branch relationship should be considered to operate under the same or similar conditions but between two separate entities. Nevertheless branches of banks do have capital funds and assets – the simplest example may be where a branch of a foreign bank acquires premises for the purposes of its trade, but there are also other examples: where the profits of the branch are retained for use in its trade or where, for one reason or another, funds representing the capital of the bank as a whole are placed in London other than as intra branch deposits of the same character as might have been made between one bank and another. In some cases the original 1957 [PW] agreement method is still in use, but in others regard is had to actual capital of the branch having regard to what are the physical assets etc. In other cases it has become clear that there are, as a question of fact, no capital funds available to the London branch for use in its trade. Broadly, the Revenue position is that we seek to look at the reality of the situation and are prepared to accept that there is no London capital where the facts support this view.”
“2. There is considerable variation in the domestic laws of OECD Member countries regarding the taxation of PEs. In addition, there is no consensus amongst the OECD Member countries as to the correct interpretation of Article 7. This lack of a common interpretation and consistent application of Article 7 can lead to double, or less than single taxation. The development of global trading of financial products and electronic commerce has helped to focus attention on the need to establish a consensus position regarding the interpretation and practical application of Article 7. 3. As a first step in establishing a consensus position, a working hypothesis (WH) has been developed as to the preferred approach for attributing profits to a PE under Article 7. This approach builds upon developments since the last revision of the Model Commentary on Article 7 in March 1994, especially the fundamental review of the arm’s length principle, the results of which were reflected in the 1995 OECD Transfer Pricing Guidelines (the Guidelines). The Guidelines address the application of the arm’s length principle to transactions between associated enterprises under Article 9. The basis for the development of the WH is to examine how far the approach of treating a PE as a hypothetical distinct and separate enterprise can be taken and how the guidance in the Guidelines could be applied, by analogy, to attribute profits to a PE in accordance with the arm’s length principle of Article 7. The ongoing development of the WH will not be constrained by either the original intent or by the historical practice and interpretation of Article 7. Rather the intention is to formulate the preferred approach to attributing profits to a PE under Article 7 given modern-day multinational operations and trade.”
“… at no time in my recollection did any country suggest that Article 7 prohibited the attribution of capital to a bank branch per se and it was not included in the list of difficult issues that may require a detailed analysis to see if any potential changes could be implemented by changing the Commentary or even the wording of the Article itself or in the list of possible reservations that would be required to preserve this particular view if held by any country. Rather, it was accepted that the principle of capital attribution was clear from the existing wording of the Commentary but that what was needed was a common approach and detailed guidance on how to determine the quantum of capital to be attributed to the branch.”
“(1) It is necessary to look first for a clear meaning of the words used in the relevant article of the convention, bearing in mind that ‘consideration of the purpose of an enactment is always a legitimate part of the process of interpretation’. A strictly literal approach to interpretation is not appropriate in construing legislation which gives effect to or incorporates an international treaty. A literal interpretation may be obviously inconsistent with the purposes of the particular article or of the treaty as a whole. If the provisions of a particular article are ambiguous, it may be possible to resolve that ambiguity by giving a purposive construction to the convention looking at it as a whole by reference to its language as set out in the relevant United Kingdom legislative instrument. (2) The process of interpretation should take account of the fact that— ‘The language of an international convention has not been chosen by an English parliamentary draftsman. It is neither couched in the conventional English legislative idiom nor designed to be construed exclusively by English judges. It is addressed to a much wider and more varied judicial audience than is an Act of Parliament which deals with purely domestic law. It should be interpreted, as Lord Wilberforce put it in James Buchanan & Co. Ltd v. Babco Forwarding & Shipping (UK) Limited , [[1978] AC 141 at 152], “unconstrained by technical rules of English law, or by English legal precedent, but on broad principles of general acceptation”.’ (3) Among those principles is the general principle of international law, now embodied in art 31(1) of the Vienna Convention on the Law of Treaties, that ‘a treaty should be interpreted in good faith and in accordance with the ordinary meaning to be given to the terms of the treaty in their context and in the light of its object and purpose’. A similar principle is expressed in slightly different terms in McNair’s The Law of Treaties (1961) p 365, where it is stated that the task of applying or construing or interpreting a treaty is ‘the duty of giving effect to the expressed intention of the parties, that is, their intention as expressed in the words used by them in the light of the surrounding circumstances’. It is also stated in that work (p 366) that references to the primary necessity of giving effect to ‘the plain terms’ of a treaty or construing words according to their ‘general and ordinary meaning’ or their ‘natural signification’ are to be a starting point or prima facie guide and ‘cannot be allowed to obstruct the essential quest in the application of treaties, namely the search for the real intention of the contracting parties in using the language employed by them’. (4) If the adoption of this approach to the article leaves the meaning of the relevant provision unclear or ambiguous or leads to a result which is manifestly absurd or unreasonable recourse may be had to ‘supplementary means of interpretation’ including travaux préparatoires . (5) Subsequent commentaries on a convention or treaty have persuasive value only, depending on the cogency of their reasoning. Similarly, decisions of foreign courts on the interpretation of a convention or treaty text depend for their authority on the reputation and status of the court in question. (6) Aids to the interpretation of a treaty such as travaux préparatoires , international case law and the writings of jurists are not a substitute for study of the terms of the convention. Their use is discretionary, not mandatory, depending, for example, on the relevance of such material and the weight to be attached to it.”
“Put shortly, the aim of interpretation of a treaty is therefore to establish, by objective and rational means, the common intention which can be ascribed to the parties. That intention is ascertained by considering the ordinary meaning of the terms of the treaty in their context and in the light of the treaty’s object and purpose. Subsequent agreement as to the interpretation of the treaty, and subsequent practice which establishes agreement between the parties, are also to be taken into account, together with any relevant rules of international law which apply in the relations between the parties. Recourse may also be had to a broader range of references in order to confirm the meaning arrived at on that approach, or if that approach leaves the meaning ambiguous or obscure, or leads to a result which is manifestly absurd or unreasonable.”
“For the purposes of this Article … the profits that are attributable in each Contracting State to the permanent establishment referred to in paragraph 1 are the profits it might be expected to make, in particular in its dealings with other parts of the enterprise, if it were a separate and independent enterprise engaged in the same or similar activities under the same or similar conditions, taking into account the functions performed, assets used and risks assumed by the enterprise through the permanent establishment and through the other parts of the enterprise.”
“ … where an enterprise of a Contracting State carries on business in the other Contracting State through a permanent establishment situated therein, there shall in each Contracting State be attributed to that permanent establishment the business profits that it might be expected to make if it were a distinct and separate enterprise engaged in the same or similar activities under the same or similar conditions and dealing wholly independently with the enterprise of which it is a permanent establishment. For this purpose, the business profits to be attributed to the permanent establishment shall include only the profits derived from the assets used, risks assumed and activities performed by the permanent establishment.”
“It is understood that the OECD Transfer Pricing Guidelines will apply, by analogy, for the purposes of determining the profits attributable to a permanent establishment. Accordingly, any of the methods described therein—including profits methods—may be used to determine the income of a permanent establishment so long as those methods are applied in accordance with the Guidelines. In particular, in determining the amount of attributable profits, the permanent establishment shall be treated as having the same amount of capital that it would need to support its activities if it were a distinct and separate enterprise engaged in the same or similar activities.…”
“1. A treaty shall be interpreted in good faith in accordance with the ordinary meaning to be given to the terms of the treaty in their context and in the light of its object and purpose. 2. The context for the purpose of the interpretation of a treaty shall comprise, in addition to the text, including its preamble and annexes: (a) any agreement relating to the treaty which was made between all the parties in connection with the conclusion of the treaty; (b) any instrument which was made by one or more parties in connection with the conclusion of the treaty and accepted by the other parties as an instrument related to the treaty. 3. There shall be taken into account, together with the context: (a) any subsequent agreement between the parties regarding the interpretation of the treaty or the application of its provisions; (b) any subsequent practice in the application of the treaty which establishes the agreement of the parties regarding its interpretation; (c) any relevant rules of international law applicable in the relations between the parties. 4. A special meaning shall be given to a term if it is established that the parties so intended.”
“This paragraph clarifies, in relation to the expenses of a permanent establishment, the general directive laid down in paragraph 2. It is valuable to include paragraph 3 if only for the sake of removing doubts. The paragraph specifically recognises that in calculating the profits of a permanent establishment allowance is to be made for expenses, wherever incurred, that were incurred for the purposes of the permanent establishment. Clearly in some cases it will be necessary to estimate or calculate by conventional means the amount of expenses to be taken into account. In the case, for example, of general administrative expenses incurred at the head office of the enterprise it may be appropriate to take into account a proportionate part based on the ratio that the permanent establishment’s turnover (or perhaps its gross profits) bears to that of the enterprise as a whole. Subject to this, it is considered that the amount of expenses to be taken into account as incurred for the purposes of the permanent establishment should be the actual amount so incurred.”
“43. A different issue, however, is that of the deduction of interest on debts actually incurred by the enterprise. Such debts may relate in whole or in part to the activities of the permanent establishment; indeed, loans contracted by an enterprise will serve either the head office, the permanent establishment or both. The question that then arises in relation to these debts is how to determine the part of the interest that should be deducted in computing the profits attributable to the permanent establishment. 44. The approach suggested in this Commentary before 1994, namely the direct and indirect apportionment of actual debt charges, did not prove to be a practical solution, notably since it was unlikely to be applied in a uniform manner. Also, it is well known that the indirect apportionment of total interest payment charges, or of the part of interest that remains after certain direct allocations, comes up against practical difficulties. It is also well known that direct apportionment of total interest expenses may not accurately reflect the cost of financing the permanent establishment because the taxpayer may be able to control where loans are booked and adjustments may need to be made to reflect economic reality, in particular the fact that an independent enterprise would normally be expected to have a certain level of ‘free’ capital. 45. Consequently, the majority of member countries consider that it would be preferable to look for a practicable solution that would take into account a capital structure appropriate to both the organization and the functions performed. This appropriate capital structure will take account of the fact that in order to carry out its activities, the permanent establishment requires a certain amount of funding made up of ‘free’ capital and interest bearing debt. The objective is therefore to attribute an arm’s length amount of interest to the permanent establishment after attributing an appropriate amount of ‘free’ capital in order to support the functions, assets and risks of the permanent establishment. Under the arm’s length principle a permanent establishment should have sufficient capital to support the functions it undertakes, the assets it economically owns and the risks it assumes. In the financial sector regulations stipulate minimum levels of regulatory capital to provide a cushion in the event that some of the risks inherent in the business crystallise into financial loss. Capital provides a similar cushion against crystallisation of risk in non-financial sectors. 46. … there are different acceptable approaches for attributing ‘free’ capital that are capable of giving an arm’s length result. Each approach has its own strengths and weaknesses, which become more or less material depending on the facts and circumstances of particular cases. Different methods adopt different starting points for determining the amount of ‘free’ capital attributable to a permanent establishment, which either put more emphasis on the actual structure of the enterprise of which the permanent establishment is part or alternatively, on the capital structures of comparable independent enterprises. The key to attributing ‘free’ capital is to recognise: - the existence of strengths and weaknesses in any approach and when these are likely to be present; - that there is no single arm’s length amount of ‘free’ capital, but a range of potential capital attributions within which it is possible to find an amount of ‘free’ capital that can meet the basic principles set out above.”
“[9] … counsel for both sides agree that the Judge was entitled to rely on subsequent documents issued by the OECD in order to interpret the Model Convention. I share their view … [10] The worldwide recognition of the provisions of the Model Convention and their incorporation into a majority of bilateral conventions have made the commentaries on the provisions of the OECD Model a widely-accepted guide to the interpretation and application of the provisions of existing bilateral conventions … [11] The same may be said with respect to later commentaries, when they represent a fair interpretation of the words of the Model Convention and do not conflict with the commentaries in existence at the time a specific treaty was entered and when, of course, neither party has registered any objection to the new Commentaries … [12] I therefore reach the conclusion, that for the purposes of interpreting the Tax Treaty, [later OECD reports and commentaries] are a helpful complement to the earlier Commentaries, insofar as they are eliciting, rather than contradicting, views previously expressed.”
“What one can say is this: In 1975, at the time that the Convention was under negotiation, the Inland Revenue applied a formulary approach with respect to the determination of the working capital (and hence the amount of allowable interest) of a number of foreign banks having branches in the UK. And it is clear from the [Inland Revenue’s] Banking Manual that, at least in the case of some banks, the PW Formula continued to be employed even after 1978.”
“The Banking Manual clearly takes the position that interest expense can be allowed on funds borrowed by the branch from head office, but only to the extent that such funds do not represent the free working capital of the branch as calculated in accordance with Appendix 9.A [to the Banking Manual].”