Today, it was announced that the UK public has voted to leave the European Union. There will now be a negotiation of a new relationship between the UK and Europe. The fact of the vote itself has no legal effect on the laws of the UK or EU. The UK will remain a member of the EU until there is either an agreement to exit or expiry of a two-year period after issuance of a formal notice of exit by the UK government. That notice, when served, triggers a negotiation period of up to two years during which time the current EU laws continue to apply in the UK. The UK will lose some of its rights to participate in EU political processes during this period.

This note discusses potential legal models for any post-Brexit negotiated solution in the context of financial business in particular.


There are a number of possible models for a new UK deal with the rest of Europe. We discuss these below. It seems unlikely that any of the existing treaty infrastructures underpinning these models will be followed exactly in light of the size and importance of the UK as an economy within Europe and due to some of the policy issues behind the UK's vote. Instead, a unique new arrangement is likely to be negotiated, perhaps containing some elements of the arrangements that other non-EU countries such as Switzerland or Norway currently have in place (which are outlined below).

One key element of any deal from a financial services perspective will be the status of financial services "passports". These currently provide financial institutions incorporated within the EU (including the UK) with access to customers and markets across the EU based on a single home country regulatory authorization. Financial institutions can conduct financial business under the passport out of the UK with customers in European countries subject only to UK supervision under broadly EU-based rules, rather than being dually regulated. One possible post-Brexit scenario is for the UK to remain in the European Economic Area ("EEA"), giving it full EU passporting rights. However, this arrangement gives no vote to UK representatives on EU laws and comes with the "free movement of persons". As immigration from other EU countries has been one of the main issues in the referendum, such an arrangement is probably unacceptable to the UK people. The lack of ability to negotiate would most likely also prove to be a barrier. As a result, some level of tailored access solution is likely to be required even if this starting point were to be adopted. If the UK opts to stay out of any such arrangements with the EU entirely (at least temporarily), in order to get the relationship it wants, it could become what in European parlance is known as a "third country". There are two passports for third country entities that are being introduced in 2018 under the arrangements known as MiFID II, which give investment firms, and banks in their investment business activities, passports to access for professional and more sophisticated clients. MiFID II may provide the base level framework for a new arrangement for the City with   the rest of Europe.

The Different Models

There are several legal models that the UK government could negotiate.1 These could include:

  1. Complete withdrawal from the EU, with new bespoke bilateral agreements that retain freedom of trade and/or establishment, without membership of an existing European bloc.
  2. Joining the European Free Trade Association ("EFTA") and re-joining the EEA (i.e. like Norway, Liechtenstein and Iceland).
  3. Joining EFTA and relinquishing membership of the EEA whilst gaining access to the European markets through bilateral agreements (i.e. like Switzerland).
  4. Entering into a customs union with the EU (i.e. like Turkey, although the Turkish-EU customs union is limited to trade in goods).
  5. Entering into a free trade agreement with the EU within the World Trade Organisation framework (i.e. like Canada).

The map below depicts the countries that are currently in the EEA as well as the candidate EU member states.

Brexit Negotiation Process

The process for exiting the EU is established under the Treaty on European Union.2 The provisions were inserted into the Treaty after Greenland exited the EU, as there was no mechanism at that time. An exit under the Treaty provisions has therefore not occurred before. The Treaty provides that a member state may withdraw from the EU following the negotiation and conclusion of an agreement with the EU, outlining the exiting member state's arrangements for withdrawal from the EU and its future relationship with the EU. EU Treaties would cease to apply to the UK upon an agreement taking effect or the expiry of two years from the date of the UK's notification to exit from the EU. The UK could apply to the European Council for an extension of the two-year period. Approval of any such extension requires unanimous consent of the other EU heads of state. Agreement to leave only needs a qualified majority vote at Council and majority ratification by Parliament, not unanimity.

In principle, the exit process could be triggered by the UK once a new arrangement has been negotiated; or it could be triggered before negotiations have been finalised. After notice is given, the UK would no longer have a presence in European Parliament and the exit negotiations would be led within the EU by representatives of the remaining EU member states in the relevant institutions. If no agreement is settled within the prescribed two- year period, and no extension of time is granted, the UK will be deemed to have effectively exited the EU and all associated constitutional, trade and other arrangements would largely cease to apply, unless other steps are taken.

Transitional arrangements necessary for the two-year period to be observed will add a layer of complexity concerning: (i) the validity of existing EU legislation; (ii) the nature of the legislation, in particular, whether it is directly effective or not; and (iii) the terms of the exit.

UK Legal Framework for EU Membership: Background

The UK legal framework for its EU membership and the manner in which it fulfils its current EU obligations is found in the European Communities Act 1972 ("ECA"). The ECA provides for all pre-existing EU texts to apply as UK law, although the method of transposition varies depending on the nature of the EU legislative instrument. All "directly effective" EU legislation (i.e. EU regulations and certain articles of the EU treaties) is automatically incorporated into national law without the need for further enactment through an Act of Parliament. In practice, some UK legislative changes are often needed to eliminate any inconsistencies with a particular EU regulation. In contrast, EU directives are binding on EU member states but require national implementation measures, often done in the UK by statutory instrument under authority of the ECA. In addition, in sectors which are subject to regulation, such as financial services, rules and guidance are often issued by the regulators to implement or further detail the requirements. It is unclear what will replace the ECA on a Brexit or whether existing EU legislation would be grandfathered.

EU law includes the principle of direct effect. EU law may be of vertical direct effect, which means that individuals can invoke an EU provision in relation to a country, or of horizontal direct effect which means that an individual can invoke an EU provision in relation to another individual. The EU treaties are of direct effect, both vertically and horizontally, provided that the obligations are precise, clear, unconditional, do not require additional measures at either national or European level and do not give member states any discretion. EU regulations are always of direct effect, both horizontally and vertically. EU directives are of vertical direct effect when the provisions are unconditional, clear, precise and have not been transposed by the relevant member state by the required deadline.

Another key EU principle is the precedence principle, which provides that European law is superior to the national laws of member states and that member states may not apply a national law that is contrary to European law. If a member state law is contradictory to EU law, then the member state law is invalid. The precedence principle applies to all EU laws of binding force—the treaties, regulations, directives, decisions and international agreements. The Court of Justice of the European Union ("CJEU") is responsible for ensuring compliance with both the precedence principle and the principle of direct effect.

These EU laws will remain in effect during the period after the termination notice has been served. After a post- Brexit agreement has been reached or the two-year notice period has expired, UK law would prevail in its entirety (as a matter of EU law) and EU courts would cease to have competence over UK issues. The ECA would have to be amended through a new Act of Parliament in the UK. Also, any EU measures which the UK wishes to retain will have to be enacted to form part of UK law, either specifically or through national grandfathering legislation. Interpretations could also change somewhat, since the CJEU will no longer be the ultimate arbiter of the meaning of previously EU provisions.

Complete Exit from EU

The most extreme option is complete withdrawal from the EU without a meaningful new relationship post-Brexit. All EU legislation, including treaties, would cease to form part of UK law.

Effect of Brexit on Existing EU Regulatory Framework

Legal Implications

On any Brexit situation, the ECA will need to be repealed or substantially amended. This will require an Act of Parliament. Interestingly, this will be against a backdrop where probably no more than a third of MPs have openly supported Brexit. Any amendment to, or removal of, the legislative framework for implemented EU law will have several constitutional, administrative and practical implications relevant to a broad field of laws implemented under the ECA. In addition, EU regulations will cease to apply in the UK. This means that a grandfathering system would need to be implemented or a large legislative drafting exercise undertaken or a combination of both followed by a review to assess which laws the UK wants to keep, remove or tailor. This will be particularly important in areas where EU legislation on a particular issue has been implemented by both regulation and directive. For example, the EU legislative framework on capital standards for banks is contained in the Capital Requirements Regulation ("CRR") (of direct effect in the UK) and the Capital Requirements Directive ("CRD IV") (which has been implemented through UK legislation). Without a grandfathering system or new laws being drafted expeditiously to replace the EU legislation, the UK legislation implementing CRD would not, without the CRR sitting alongside it, have practical application. This situation would lead to legal uncertainty.

In theory, UK and EU businesses currently operating on a cross-border basis may find that they have to comply with different (unharmonised) laws in both the UK and a post-Brexit EU, although it seems likely that arrangements would be put in place to prevent that. All references to EU bodies such as the European Securities and Markets Authority ("ESMA") and the European Commission in UK legislation will need to be removed.

Financial Services Sector

Loss of Influence over EU Legislation but ability to Develop more Free-Market UK Legislation

By revoking its membership of the European Union, the UK will lose its ability to influence directly in the framing of any EU legislation. This is mostly viewed as a negative aspect of leaving the EU. However, the corresponding increase in national sovereignty would also present an opportunity to remove or modify those aspects of EU legislation that the UK has opposed in the past, for example, the bonus cap for bankers and the framework for marketing and managing funds under the Alternative Investment Fund Managers Directive ("AIFMD"). Many more examples abound. The UK will now need to negotiate its access to the EU markets through bilateral agreements. If one looks at the EU-Canada Comprehensive Economic and Trade Agreement ("CETA"), the EU appears to be more willing than in the past to create favourable terms for the financial services sector. For individual pieces of legislation where equivalence determinations are required, the UK could likewise request some kind of access on the basis that, while its laws do not exactly mirror those of the EU, they achieve similar outcomes and there is no threat to the financial stability of the EU.

Whether and how UK businesses would have access to the EU after membership is revoked will depend on what substitute arrangements are negotiated between the UK and EU. Some financial businesses have announced that they would move some staff and operations to continental Europe,3  presumably if "passporting" was not replicated in a post-leave settlement. It is difficult to predict what would happen in any Brexit situation. However, it does seem inconceivable that the UK government would seek to manage Brexit in such a way as to damage the City and broader national economy.

The converse situation of EU firms' access to the UK post-Brexit would contrast starkly, at least under current laws. Pursuant to the UK's "overseas persons exclusion," all EU and non-EU firms have access to wholesale UK markets. This exclusion allows a non-UK firm to enter into certain regulated activities (such as dealing in derivatives as principal or agent) with UK client or counterparties from outside the UK, without needing to be authorised, provided that the firm enters into transactions with or through a locally regulated entity or if marketing laws are complied with.4 Despite the UK voting to leave the EU, the overseas persons exclusion will continue to apply to EU firms for the time being. As regards branches of EU firms, many of these are likely to have to subsidiarise, with consequent capital consequences, since the UK takes the view that any significant or systemically risky business should be conducted through subsidiaries. This situation is a considerable negotiating chip for the UK since EU firms will require access to the UK's markets in order to conduct many forms of business.

Cross-Border Passporting Regimes

Full exit from the EU will result in loss of access to the EEA single financial market and the corresponding rights to freedom of trade and establishment. Various laws5 allow EEA banks, brokers, exchanges, fund managers, clearing houses, funds and payment service providers the right to "passport" into other EEA member states without the need for further regulatory approval. Passport rights can be exercised by either establishing a branch or providing services cross-border in the other member state. The basis of the EEA "passporting system" is founded in the Treaty on European Union and the EEA Agreement,6 in particular the freedoms of establishment and provision of services, but has been built upon in legislation by sector. Some freedoms of access have not been implemented or replicated in domestic UK legislation and are instead directly effective in the UK by virtue of the UK's accession to the EU or because they are in EU regulations.7

Reduced Access to EU Financial Markets?

The EU has set up a framework through which financial institutions, insurers and reinsurers, funds and market infrastructure (trading venues, central counterparties, trade repositories, benchmark administrators and central securities depositories) established outside of the EU (third countries) can access European investors and markets.8 For these financial sector participants to access the EU markets, in addition to being properly authorized and supervised in their own countries, there are various requirements relating to the legal and regulatory regime of those countries that need to be fulfilled. The requirements vary by sector but typically revolve around the "equivalence" of the third country regime to the EU regime, co-operation arrangements between the third country and EU countries or ESMA and the anti-money laundering and tax arrangements in the third country.

Access to the EU markets for these UK-established financial sector participants will therefore depend on how closely aligned the UK's legal and regulatory regime is to the EU regime. It is likely that initially the UK's regime would be deemed automatically equivalent to the EU regime for those areas where the UK has already adopted EU laws (for example, under the European Market Infrastructure Regulation ("EMIR")) but this depends on how the UK approaches grandfathering. For those areas where EU legislation is due to be introduced or which have not been fully implemented in the UK, equivalence determinations would need to be made and a negotiation would be required. Equivalence determinations can take time if there are material differences to be considered.9 The UK would need to ensure that its financial regulatory regime achieved similar outcomes to that of the EU regime if it wanted any immediate access.

The Impact of MiFID II

For the passporting of investment businesses, the position could be largely unaffected at least in the medium to short term, assuming MiFID II10 comes into effect on schedule. The current date for implementation of MiFID II has recently been moved from 3 January 2017 to 3 January 2018.

MiFID II will therefore come into force during the 2-year exit period. MiFID II allows non-EU firms to provide wholesale services on a cross-border basis across the EU upon registration with ESMA, subject to those services only being provided to wholesale clients and the authorisation of the firm in its own country covering the same services. Registration with ESMA requires, amongst other things, an equivalence determination that the conduct and prudential rules of the relevant third country are equivalent to those in the EU. Non-EU firms that want to provide wholesale services across Europe may alternatively do so through a retail branch which is authorised in a relevant member state, again subject to certain conditions most notably including equivalence.

The timing of the UK's exit from the EU and the effective date for MiFID II is key for the passporting of investment business and how these businesses structure themselves to gain access to the EU markets and investors.

The above considerations will apply equally if the UK entered into a Customs Union with the EU or if it adopted the Swiss or the Canadian models. Each of these options is discussed below.

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1 Note that the negotiation process would be in the hands of the UK government. The ability of individuals to influence the model that is adopted is restricted to lobbying.

2 Article 50, Treaty on European Union.

3 HSBC has estimated that around 20% of its workforce may have to relocate in some Brexit scenarios, see here.

4 A "legitimate approach" entails a UK person approaching the overseas person and asking to enter into the transaction, or where the overseas person makes a promotion that relies on certain exemptions from the UK's financial promotion regime such as those made to investment professionals or certain high net worth entities.

5 The Markets in Financial Instruments Directive 2004/39/EC ("MIFID I"), AIFMD 2011/61/EU, Capital Requirements Directive (2013/36/EU), Payment Services Directive (2007/64/EC), Solvency II Directive (2009/138/EC), Insurance Mediation Directive (2002/92/EC), Second Electronic Money Directive (2009/110/EC) and Undertakings for Collective Investments in Transferable Securities 2014/91/EU.

6 Articles 55 and 62, Treaty on European Union and Articles 30-32, 34 and 36-39, EEA Agreement.

7 For example, the Financial Services and Markets Act 2000 and the Payment Services Regulations 2009.

8 You may like to see our client note, "Extraterritoriality Revisited: Access to the European Markets by Financial Institutions, Funds and Others from Outside Europe," dated 27 August 2014, available here.

9 The long negotiations between the EU and US over the regime for CCPs demonstrate that an equivalence determination is not guaranteed and can take a long time to be reached. The potential impact would filter to other market participants.

10 MiFID II is made up of the revised Markets in Financial Instruments Directive 2014/65/EU and the Markets in Financial Instruments Regulation 600/2014.

The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.