The Competition Cooperation Agreement between the UK and the EU, signed by both parties on 25th February 2026 in Brussels, sets out a framework for future cooperation in terms of competition law following Brexit. This will create a framework for EU and UK authorities to cooperate with each other after Brexit for the very first time purely on competition matters.
It provides a framework for the European Commission and EU member states, on the one hand, and the UK Competition and Markets Authority, on the other hand, to work together in relation to antitrust and merger investigations. Both parties will share information about significant antitrust and merger investigations and will coordinate their enforcement efforts to ensure consistent outcomes. The protection of confidential information is one of the main aspects of the agreement. The competition authorities will maintain the confidentiality of any information shared, and prior approval of the companies that shared the information is required to allow for the sharing of confidential or sensitive information. Therefore, this ensures that cooperation will not negatively impact business confidentiality or legal protections provided under law.
Furthermore, the new agreement will reinforce the current Trade & Cooperation Agreement (TCA) between the EU and the UK by providing a clearer understanding of each of their obligations under the TCA. As such, this creates, through signing this new agreement, an opportunity for both parties to enter into and strengthen their existing relationship through the implementation of regulatory cooperation regarding our laws regulating marketplace conduct (competition), protecting consumers (consumer protection), and providing appropriate mechanisms to promote and develop innovative products and services (innovation). Both parties may ratify this new agreement, at which point it will go into effect. From the standpoint of the EU, the final step necessary to proceed to ratifying the new agreement will be to adopt, by the council, a decision concluding the agreement with the appropriate consent/approval of the European Parliament, thereby completing their internal procedural approvals.