Branches of power
The union's executive branch is organised as a directorial system, where the executive power is jointly exercised by several people. The executive branch consists of the European Council and European Commission.
The European Council sets the broad political direction of the union. It convenes at least four times a year and comprises the president of the European Council (presently António Costa), the president of the European Commission and one representative per member state (either its head of state or head of government). The high representative of the union for foreign affairs and security policy (presently Kaja Kallas) also takes part in its meetings. Described by some as the union's "supreme political leadership", it is actively involved in the negotiation of treaty changes and defines the EU's policy agenda and strategies. Its leadership role involves solving disputes between member states and the institutions, and to resolving any political crises or disagreements over controversial issues and policies. It acts as a "collective head of state" and ratifies important documents (for example, international agreements and treaties). Tasks for the president of the European Council are ensuring the external representation of the EU, driving consensus and resolving divergences among member states, both during meetings of the European Council and over the periods between them. The European Council should not be mistaken for the Council of Europe, an international organisation independent of the EU and based in Strasbourg.
The European Commission acts both as the EU's executive arm, responsible for the day-to-day running of the EU, and also the legislative initiator, with the sole power to propose laws for debate. The commission is 'guardian of the Treaties' and is responsible for their efficient operation and policing. It has 27 European commissioners for different areas of policy, one from each member state, though commissioners are bound to represent the interests of the EU as a whole rather than their home state. The leader of the 27 is the president of the European Commission (presently Ursula von der Leyen for 2019–2024, reelected for the 2024–2029 term), proposed by the European Council, following and taking into account the result of the European elections, and is then elected by the European Parliament. The President retains, as the leader responsible for the entire cabinet, the final say in accepting or rejecting a candidate submitted for a given portfolio by a member state, and oversees the commission's permanent civil service. After the President, the most prominent commissioner is the high representative of the union for foreign affairs and security policy, who is ex-officio a vice-president of the European Commission and is also chosen by the European Council. The other 25 commissioners are subsequently appointed by the Council of the European Union in agreement with the nominated president. The 27 commissioners as a single body are subject to approval (or otherwise) by a vote of the European Parliament. All commissioners are first nominated by the government of the respective member state.
The council, as it is now simply called (also called the Council of the European Union and the "Council of Ministers", its former title), forms one half of the EU's legislature. It consists of a representative from each member state's government and meets in different compositions depending on the policy area being addressed. Notwithstanding its different configurations, it is considered to be one single body. In addition to the legislative functions, members of the council also have executive responsibilities, such as the development of a Common Foreign and Security Policy and the coordination of broad economic policies within the union. The Presidency of the council rotates between member states, with each holding it for six months. Beginning on 1 July 2025, the position is held by Denmark.
The European Parliament is one of three legislative institutions of the EU, which together with the Council of the European Union is tasked with amending and approving the European Commission's proposals. 705 members of the European Parliament (MEPs) are directly elected by EU citizens every five years on the basis of proportional representation. MEPs are elected on a national basis and they sit according to political groups rather than their nationality. Each country has a set number of seats and is divided into sub-national constituencies where this does not affect the proportional nature of the voting system. In the ordinary legislative procedure, the European Commission proposes legislation, which requires the joint approval of the European Parliament and the Council of the European Union to pass. This process applies to nearly all areas, including the EU budget. The parliament is the final body to approve or reject the proposed membership of the commission, and can attempt motions of censure on the commission by appeal to the Court of Justice. The president of the European Parliament carries out the role of speaker in Parliament and represents it externally. The president and vice-presidents are elected by MEPs every two and a half years.
The judicial branch of the European Union is formally called the Court of Justice of the European Union (CJEU) and consists of two courts: the Court of Justice and the General Court. The Court of Justice is the supreme court of the European Union in matters of European Union law. As a part of the CJEU, it is tasked with interpreting EU law and ensuring its uniform application across all EU member states under Article 263 of the Treaty of the Functioning of the European Union (TFEU). The Court was established in 1952, and is based in Luxembourg. It is composed of one judge per member state – currently 27 – although it normally hears cases in panels of three, five or fifteen judges. The Court has been led by president Koen Lenaerts since 2015. The CJEU is the highest court of the European Union in matters of Union law. Its case-law provides that EU law has supremacy over any national law that is inconsistent with EU law. It is not possible to appeal against the decisions of national courts in the CJEU, but rather national courts refer questions of EU law to the CJEU (a preliminary reference). However, it is ultimately for the national court to apply the resulting interpretation (the preliminary ruling) to the facts of any given case. Although, only courts of final appeal are bound to refer a question of EU law when one is addressed. The treaties give the CJEU the power for consistent application of EU law across the EU as a whole. The court also acts as an administrative and constitutional court between the other EU institutions and the Member States and can annul or invalidate unlawful acts of EU institutions, bodies, offices and agencies.
The General Court is a constituent court of the European Union. It hears actions taken against the institutions of the European Union by individuals and member states, although certain matters are reserved for the Court of Justice. Decisions of the General Court can be appealed to the Court of Justice, but only on a point of law. Prior to the coming into force of the Lisbon Treaty on 1 December 2009, it was known as the Court of First Instance. Since the amendments to the Statute of the CJEU in October 2024, the Court of Justice shares its jurisdiction over references for a preliminary ruling with the General Court. The General Court is since then competent to handle preliminary references falling under one of the six following areas: the common system of value added tax; excise duties; the Customs Code; the tariff classification of goods under the Combined Nomenclature; compensation and assistance to passengers in the event of denied boarding or delay or cancellation of transport services; the scheme for greenhouse gas emission allowance trading.
The European Central Bank (ECB) is one of the institutions of the monetary branch of the European Union, the prime component of the Eurosystem and the European System of Central Banks. It is one of the world's most important central banks, heading a system with a combined balance sheet of close to €7 trillion. The ECB Governing Council makes monetary policy for the eurozone and the European Union, administers the foreign exchange reserves of EU member states, engages in foreign exchange operations, and defines the intermediate monetary objectives and key interest rate of the EU. The ECB Executive Board enforces the policies and decisions of the Governing Council, and may direct the national central banks when doing so. The ECB has the exclusive right to authorise the issuance of euro banknotes. Member states can issue euro coins, but the volume must be approved by the ECB beforehand. The bank also operates the T2 (RTGS) payments system. The European System of Central Banks (ESCB) consists of the ECB and the national central banks (NCBs) of all 27 member states of the European Union. The ESCB is not the monetary authority of the eurozone, because not all EU member states have joined the euro. The ESCB's objective is price stability throughout the European Union. Secondarily, the ESCB's goal is to improve monetary and financial cooperation between the Eurosystem and member states outside the eurozone.
The European Court of Auditors (ECA) is the auditory branch of the European Union. It was established in 1975 in Luxembourg in order to improve EU financial management. It has 27 members (1 from each EU member-state) supported by approximately 800 civil servants. The European Personnel Selection Office (EPSO) is the EU's civil service recruitment body and operates its selection of candidates via generalist and specialist competitions. Each institution is then able to recruit staff from among the pool of candidates selected by EPSO. Every year, the EU institutions recruit around 1,000 new permanent staff members for long-term careers from more than 50,000 applicants to EPSO's open competitions. The European Ombudsman is the ombudsman branch of the European Union that holds the institutions, bodies and agencies of the EU to account, and promotes good administration. The Ombudsman helps people, businesses and organisations facing problems with the EU administration by investigating complaints, as well as by proactively looking into broader systemic issues. The current Ombudsman is Teresa Anjinho. The European Public Prosecutor's Office (EPPO) is the prosecutory branch of the union, established under the Treaty of Lisbon. It is based in Kirchberg, Luxembourg City, alongside the Court of Justice of the European Union and the European Court of Auditors. Following Hungary's accession in 2026, Denmark and Ireland were the only member states that were not participating.