Bulgaria to adopt euro on 1 January 2026 amid political turmoil and corruption concerns

Bulgaria will become the 21st member of the eurozone on 1 January 2026, swapping the lev for the euro after a preparation process that formally began in 2018. The European Commission and euro area finance ministers approved the bid earlier this year, confirming that the country satisfies the Maastricht convergence criteria. The move leaves only six of the 27 EU member states outside the single currency: Sweden, Poland, the Czech Republic, Hungary, Romania and Denmark.

Convergence criteria met but structural gaps remain

On paper, Bulgaria's macroeconomic indicators are sound. Inflation has fallen to 2.8% from a peak of 13% in 2022. The budget deficit stands at roughly 3% of GDP and total debt at 24%, well within the EU limits of 3% and 60% respectively. The lev has been pegged to the euro since the single currency's launch in 1999 and entered the European Exchange Rate Mechanism (ERM II) in July 2020. The European Commission forecasts real GDP growth of 3% in 2025, 2.7% in 2026 and 2.1% in 2027.

Yet the headline numbers mask a deeper problem. Income per capita is only 59% of the EU average, according to Eurostat data, and productivity growth has lagged. Guntram Wolff of Bruegel described Bulgaria's macroeconomic performance as stable over recent decades but its economic catch-up as suboptimal. Norbert Beckmann of the Konrad Adenauer Foundation echoed that assessment, noting the country has one of the lowest debt ratios in Europe but still has a lot of catching up to do in terms of structure and performance.

Political instability and corruption undermine confidence

The political backdrop is far less reassuring. Bulgaria has held seven parliamentary elections since 2021. Prime Minister Rosen Zhelyazkov's government resigned on 11 December 2024 after mass protests over graft and a budget plan that included higher taxes and increased social security contributions. Although the budget was withdrawn, public anger has not subsided. If attempts to form a new government fail, President Rumen Radev will appoint an interim administration and call a snap election, the eighth in four years.

Corruption remains systemic. Transparency International's Corruption Perceptions Index consistently places Bulgaria among the EU's most corrupt members. Rossitsa Rangelova of the Bulgarian Academy of Sciences warned that joining the eurozone at any cost is not a path to prosperity. She argued that efforts should focus on stabilising the political situation, sensible macroeconomic policy, strong domestic institutions and good governance. Without those, she said, the country would not be an equal participant in the currency union.

Public opinion split and fuelled by disinformation

Surveys show Bulgarians are divided. Supporters cite higher foreign investment, the end of foreign-exchange costs and deeper integration into the EU single market. Sceptics fear a spike in prices as goods and services are converted from lev to euro, and the loss of monetary sovereignty to the European Central Bank in Frankfurt. Rangelova criticised the authorities for refusing a referendum, saying that for such fundamental projects a democratic government takes account of public opinion.

Guntram Wolff pointed to Russian disinformation campaigns as a factor amplifying anti-euro sentiment. Russia, he noted, regularly attacks Bulgaria with hybrid warfare and tries to pull the country back into its sphere of influence. By joining the euro, Bulgaria anchors itself more deeply in Western Europe, which strengthens the EU. Countering Russian hybrid operations and stepping up the fight against corruption will be imperative, he said.

Fiscal discipline after entry is the main risk

Experts agree the immediate economic risk is low given the low debt starting point. Wolff said the main danger is that after accession the budget constraint might be seen as less binding by the political system, allowing deficits to grow. Beckmann underscored the need to avoid market distortions: incomes must always reflect the economy's capacity and people must not live beyond their means. If incomes become decoupled and are artificially inflated by borrowing, distortions can emerge, as Greece experienced after 2001.

The European Central Bank's Christine Lagarde, speaking at a high-level conference in Sofia in November 2024, said euro adoption bolsters Bulgaria's economic foundations, builds resilience against global shocks and amplifies its voice in euro area decision-making. Prime Minister Zhelyazkov, before his resignation, called the euro not just a currency but a strategic choice that strengthens Bulgaria's position in Europe.

Parliamentary majority for euro has held despite turbulence

Beckmann noted that throughout the frequent government changes, the parties and politicians favouring euro adoption and Western integration have always commanded a parliamentary majority. Eurosceptic positions have remained a minority and he does not expect that to change. Consequently, he sees no reason to assume Bulgaria's accession could weaken the euro. The political consensus on the strategic direction has been more durable than the governments themselves.

What happens next

The immediate political test is whether a stable government can be formed before 1 January 2026. If not, an interim administration will oversee the technical changeover, dual pricing is already appearing in shops, and the Bulgarian National Bank is preparing the logistical swap of coins and notes. The deeper test comes after adoption: whether fiscal discipline holds without the external anchor of an impending assessment, whether structural reforms in justice, procurement and anti-corruption finally advance, and whether the income gap with the EU average begins to close. The next European Commission convergence report, due in 2026, will provide the first post-entry verdict.