The European Union continues to require unanimity for decisions on foreign policy, taxation and accession, meaning that any one member can halt a proposal. Since 2011 the unanimity clause has been invoked 48 times, with Hungary accounting for 21 of those instances under Prime Minister Viktor Orbán.

The veto in practice

Because of a single dissenting member the Union has been unable to adopt a coordinated sanctions regime against Russia, and debate over possible sanctions on Israel for actions in Gaza has also been stalled. In December 2023 Hungary briefly left an EU summit; the remaining leaders then opened accession talks with Ukraine unanimously, although Orbán later said he had not voted in favour.

A €90 billion loan package for Ukraine was approved in December 2025 after a temporary procedural workaround was used when Hungary’s veto was lifted following a government change in April 2026.

The capital markets union, first mentioned in 2015, has made no progress and remains inactive. The lack of an integrated market keeps private pensions invested in low‑yield assets and deprives the Union of a source of funding for green infrastructure and digital projects.

Updating EU rules on social‑security coordination for mobile workers took ten years, far longer than the typical two‑year legislative timetable.

Calls for reform

Former European Central Bank president Mario Draghi has suggested either removing the veto in certain areas or allowing a coalition of willing states to proceed without hold‑outs. Proposals under discussion include extending qualified‑majority voting to more policy areas, lowering the population threshold for a qualified majority and making veto votes anonymous to reduce the political cost of using the veto.

Charles Grant of the Centre for European Reform argues that altering voting thresholds is a political choice rather than a technical adjustment and that anonymous vetoes could lessen the incentive for governments to use the veto as leverage in unrelated negotiations.

Hungary, Poland, the Czech Republic and Slovakia have frequently used their veto power to block measures they view as contrary to national priorities.

Political context and future outlook

Qualified‑majority voting currently requires at least 55 % of member states – fifteen of twenty‑seven – representing 65 % of the EU population. If Ukraine were to join, its population of about 44 million would make it the fourth‑largest member, altering the demographic balance used for QMV calculations.

German Chancellor Friedrich Merz has suggested an associate membership for Ukraine that would grant many benefits without full voting rights, a proposal that Kyiv has rejected. Charles Grant warns that associate membership might be the only feasible near‑term enlargement option, while noting that any amendment to EU treaties would itself require unanimity among all members, including those that benefit from the current veto system.

Petros Fassoulas of the European Movement International contends that the Union’s lowest‑common‑denominator approach weakens its capacity to address climate change, digital transformation and security challenges. A 2024 study by Nicolai von Ondarza of the German Institute for International and Security Affairs found an 83 % consensus rate in more than a thousand qualified‑majority votes, suggesting that a core coalition of like‑minded states can advance projects that later serve as a model for the rest of the Union.

Public opinion polls indicate a majority of Europeans value EU cooperation, especially when it ensures security, economic stability and environmental standards. Yet the European Trade Union Confederation warns that the lack of decisive climate‑related finance could delay the transition to a low‑carbon economy and leave workers without promised support.

Consumers in Germany, Spain and Poland face fragmented financial supervision, higher fees and limited cross‑border investment options. An integrated EU financial market could lower costs for households and strengthen pension‑system resilience.

The next EU summit, planned for early 2027, is expected to address the veto issue amid the ongoing war in Ukraine, climate emergencies and enlargement discussions. Analysts argue that building coalitions around specific projects may be more effective than sweeping treaty changes, with the hope that a core group of states can set a precedent for broader Union action.