Retained EU Law

Retained EU law is a legal concept that emerged from the United Kingdom's withdrawal from the European Union, commonly known as Brexit. This body of law encompasses EU legislation that was incorporated into UK domestic law to ensure continuity and stability post-Brexit. Here is a detailed explanation of retained EU law, its purpose, and its implications:

Retained EU law refers to the body of European Union legislation that was in force in the UK before Brexit and was subsequently retained as part of UK law after the transition period ended on December 31, 2020. This includes EU regulations, directives, decisions, and certain case law of the Court of Justice of the European Union (CJEU) that had direct effect or had been implemented into UK law.

The primary purpose of retained EU law is to ensure legal continuity and stability as the UK transitions from being an EU member state to an independent legal jurisdiction. By retaining EU law, the UK aimed to avoid legal vacuums and disruptions that could have resulted from the sudden cessation of EU-derived legal frameworks. This approach provided businesses, individuals, and public bodies with certainty and consistency in the immediate aftermath of Brexit.

Retained EU law is divided into several categories:

  1. Retained Direct EU Legislation: This includes EU regulations and decisions that were directly applicable in the UK before Brexit. These laws were converted into UK law to continue their effect.
  2. EU-Derived Domestic Legislation: This encompasses UK laws that implemented EU directives and other measures. These laws remain in force but can be amended or repealed by the UK Parliament.
  3. Retained EU Case Law: Decisions of the CJEU that were binding on the UK before Brexit are retained and continue to have relevance in interpreting retained EU law. However, UK courts have the authority to depart from this case law under certain conditions.
  4. General Principles of EU Law: Some general principles of EU law, such as proportionality and legal certainty, were retained to guide the interpretation of retained EU law.


While retained EU law provided immediate continuity, it is not immutable. The UK Parliament has the authority to amend, repeal, or replace retained EU law as deemed necessary. This legislative flexibility allows the UK to tailor its legal framework to better suit its national interests and priorities over time.

UK courts continue to play a crucial role in interpreting and applying retained EU law. Initially, UK courts were bound by existing CJEU case law, but they now have the discretion to depart from it where appropriate. Higher courts, such as the Supreme Court, have been granted the power to depart from retained EU case law, which allows for the development of a distinct UK legal interpretation over time.

The concept of retained EU law has faced several challenges and criticisms. One major challenge is the complexity of disentangling EU law from UK domestic law, given the extensive integration that occurred during the UK's EU membership. Additionally, there are concerns about legal certainty and the potential for divergence between UK and EU law, which could impact businesses and individuals operating across both jurisdictions.

The future of retained EU law is likely to involve gradual changes as the UK exercises its legislative sovereignty. The UK government has expressed intentions to review and reform retained EU law to better align with national policies and priorities. This process will involve careful consideration to balance the need for legal continuity with the desire for legal independence and innovation.

In summary, retained EU law represents a significant legal framework established to ensure continuity and stability following the UK's departure from the European Union. It includes various categories of EU-derived legislation and case law that continue to operate within the UK legal system. While providing immediate stability, retained EU law is subject to modification and repeal by the UK Parliament, allowing for the evolution of a distinct UK legal framework over time.

Back to blog
UOLLB SQE Turbocharge

UOLLB SQE Turbocharge

Get ready for the SQE1 with high-performance SQE Study Guides developed by UOLLB and published by UOL Press to revolutionise your study method and exam strategy.

Turbocharge SQE Performance Here

UOL Case Bank

Upon joining, you become a valuable UOL student and gain instant access to over 2,100 essential case summaries. UOL Case Bank is constantly expanding.
Speed up your revision with us now👇

Subscribe Now

Where are our students from?

Council of Europe
Crown Prosecution Service
Baker Mckenzie 
Yale University
University of Chicago
Columbia University
New York University
University of Michigan 
INSEAD
University of London
University College London (UCL)
London School of Economics (LSE)
King’s College London (KCL)
Royal Holloway, University of London 
Birkbeck, University of London
SOAS, University of London
University of Manchester
University of Zurich
University of York
Brandeis University
University of Exeter
University of Sheffield
Boston University
University of Washington
University of Leeds
University of Law
University of Kent
University of Hull
Queen’s University Belfast
Toronto Metropolitan University
Hong Kong University of Science and Technology
University of Buckingham
ESSEC Business School

  • Criminal Practice

    Diagrams and Charts

    Our carefully designed diagrams and charts will guide you through complex legal issues.

  • Criminal Law

    Clear and Succinct Definitions

    Key concepts are concisely defined to help you understand legal topics quickly.

  • Property Law

    Statutory Provisions

    Statutory provisions are provided side by side with legal concepts to help you swiftly locate the relevant legislation.

  • Public Law

    Case Summaries

    We have summarised important cases for you so that you don't need to read long and boring cases.

  • Evidence

    Rules and Exceptions

    Rules and exceptions are clearly listed so that you know when a rule applies and when it doesn't.

  • Company Law

    Terminology

    Legal terms and key concepts are explained at the beginning of each chapter to help you learn efficiently.

  • Case Law

    Case law is provided side by side with legal concepts so that you know how legal principles and precedents were established.

  • Law Exam Guide

    Law Essay Guide

    You will learn essential law exam skills and essay writing techniques that are not taught in class.

  • Law Exam Guide

    Problem Question Guide

    We will show you how to answer problem questions step by step to achieve first-class results.

  • Conflict of Laws

    Structured Explanations

    Complex legal concepts are broken down into concise and digestible bullet point explanations.

  • Legal System and Method

    Legal Research

    You will learn legal research techniques with our study guide and become a proficient legal researcher.

  • Jurisprudence and Legal Theory

    Exam-focused

    All essential concepts, principles, and case law are included so that you can answer exam questions quickly.