Bulgaria joined the Eurozone on January 1, becoming the 21st member of the single-currency bloc, even as the country enters the new year mired in political instability after the collapse of its government and mass street protests.

The move is a major step in Bulgaria’s integration into the European Union, which it joined in 2007, and leaves just six of the bloc’s 27 members outside the euro area – Czechia, Denmark, Hungary, Poland, Romania and Sweden. 

European Commission President Ursula von der Leyen welcomed Bulgaria’s Eurozone entry. “Tomorrow Bulgaria joins the eurozone,” she wrote in a Bulgarian language X post on December 31. 

“This pivotal moment reflects years of hard work and dedication. This means easier payments, more convenient travel and many new opportunities for Bulgarian businesses.  Congratulations, Bulgaria!” 

European Central Bank (ECB) president Christine Lagarde wrote on X: “As we step into 2026, we proudly welcome Bulgaria to the euro family! Our sincere thanks to the Bulgarian National Bank for its dedicated work and commitment in preparing for the adoption of the euro.” 

The final run-up to Eurozone entry coincided with a turbulent period in Bulgarian politics in more than a decade. Prime Minister Rosen Zhelyazkov resigned on December 11 following widespread protests over corruption and a disputed 2026 budget, pushing the country towards what will be its eighth election since 2021.

To prevent a fiscal vacuum as the country switched to the euro, parliament rushed through a temporary budget extension on December 17 covering the first three months of 2026. This allows the state to continue collecting revenue and making payments until a full budget can be adopted by a new government.

The legislation was approved in a single day after hours of acrimonious debate, ending a months-long impasse over the 2026 budget that had triggered the government’s downfall.

Credit ratings agency Fitch warned the same day that political uncertainty could slow reforms and complicate efforts to adjust fiscal policy, potentially weighing on growth. Even so, Fitch said it did not expect the crisis to derail Bulgaria’s euro adoption timetable.

Final preparations

Bulgaria accelerated practical preparations ahead of the currency switch. Since late November, the central bank and commercial lenders have been selling starter kits of Bulgarian-minted euro coins to citizens and businesses, allowing people to familiarise themselves with the new money ahead of its launch.

The designs underline Bulgarian national identity. The €2 coin features the 18th-century cleric Paisii Hilendarski, while the €1 carries an image of the medieval hermit St. Ivan of Rila. Smaller denominations display the Madara Horseman, a UNESCO-listed rock relief dating back more than 1,000 years.

Retailers have been required since August to display prices in both leva and euros at the fixed conversion rate of BGN1.95583 to the euro, with fines imposed from October for non-compliance. Consumers will still be able to use the lev alongside the euro during a one-month transition period in January.

Bulgaria’s national currency has been tightly linked to the euro since 1999 through a currency board arrangement, and the lev entered the EU’s exchange-rate mechanism in 2020, effectively locking in the conversion rate.

After years of monitoring and technical assessments, the European Union gave final political approval in July for Bulgaria to join the euro area at the start of 2026.

Economic backdrop

Despite political upheaval, Bulgaria’s economy has continued to expand at a steady pace. GDP grew 3.4% in 2024 and remained resilient in 2025, with output in the third quarter up 3.2% from a year earlier, driven by consumer spending and a recovery in investment.

The finance ministry forecasts growth of around 3% for 2025 and 2.7% in 2026, while the European Commission and the OECD project a similar slowdown next year as global trade weakens. The World Bank is slightly more optimistic, expecting growth to approach 3% again in 2026.

Yet international institutions caution that euro adoption alone will not guarantee faster convergence with Western Europe. IMF managing director Kristalina Georgieva, a Bulgarian national, said in November that the single currency would provide stability and lower transaction costs but would not automatically lift incomes.

“Adopting the euro is an important step, but it does not in itself guarantee a higher standard of living,” she said at a conference in Sofia, urging the government to focus on productivity, investment and governance reforms.

Lagarde, speaking at the same event, said Bulgaria had met the entry criteria through years of fiscal discipline and institutional work, but warned that euro membership marked “the beginning of a journey, not a destination”.

That journey now begins under a caretaker administration and deep public mistrust of the political class. The October 2024 election produced another fragmented parliament, and Zhelyazkov’s minority government, formed in January 2025, survived five no-confidence votes before stepping down.