From Hyperinflation to the Euro

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Published on December 19, 2025.
Bulgaria became the 21st member of the euro area on January 1, 2026.
Bulgaria formally requested a special convergence assessment in February 2025.
Bulgaria completed required legal and institutional commitments by 2020 and entered ERM II in the summer and the European Banking Union in the fall, alongside Croatia.
The World Bank declared Bulgaria a high-income country by 2024.

By 1996, more than 60 percent of loans were not being repaid.
Public debt spiked to more than 120 percent of GDP during the 1990s crisis.
By March 1997, annualized inflation was above 2,000 percent.
The government and the IMF supported the creation of a currency board in March 1997, pegging the lev to the deutsche mark (later the euro) and legally embedding the arrangement.
Inflation fell to 22 percent by 1998.
GDP rose by 3.5 percent in 1998 after declining 10.9 percent and 6.9 percent in 1996 and 1997, respectively.
Public debt fell by nearly half following stabilization measures.
By 2007, 75 percent of the economy was privately owned, including all the banks; Bulgaria joined the EU in 2007.
Nearly 1 million of the country’s 8.5 million people emigrated during the post-currency-board decades.

A housing boom, hard-currency lending, and supercharged wage growth after 2007 produced double-digit inflation and drove the current account deficit above 20 percent of GDP.
By 2009, inflation returned below 2.5 percent.
A domestic banking crisis occurred in 2014, highlighting governance weaknesses.
Bulgaria completed anti-corruption and other agreed reforms by 2020 and entered ERM II and the European Banking Union in the same period (summer and fall, respectively).
Pandemic and energy-related external shocks prompted public spending that pushed inflation above convergence thresholds, delaying euro accession.
By 2024, the pandemic and energy shock effects receded, and EU and ECB convergence assessments noted that Bulgaria’s laws met EU requirements, though vigilance was advised.

On New Year’s Day 2026, Bulgaria joined the euro area and ended the nearly three-decade currency board.
Noted benefits of euro area membership:
- Easier travel within Europe without costly exchange rate fees.
- Banking and financial stability bolstered by access to the Single Supervisory Mechanism and the ECB as lender of last resort.
- Direct participation in the euro area’s deep money and capital markets, with potential to significantly lower the cost of capital and sovereign risk premiums.
- Elimination of remaining currency risk, boosting investor confidence.
- Bulgaria gains a vote and voice in ECB monetary policy decisions as a full member.
Public sentiment: the currency board had strong public support for keeping inflation low; many Bulgarians were sad to see it go despite its technical nature.

Key success factors for the currency board in Bulgaria:
- Design that combined strict discipline with enough flexibility to ensure financial stability.
- Legal transparency, including writing the currency board into law and parliamentary oversight.
- Consistent implementation by civil servants and successive governments.
- Public buy-in and understanding of benefits and costs.
Caveats:
- There are no one-size-fits-all solutions; some currency boards have failed.
- Continued challenges for Bulgaria include population decline and the fight against corruption.
Bulgaria’s experience can inform other countries exiting fragility and conflict on currency board design, implementation, and technical assistance.

Source: From Hyperinflation to the Euro, Charles Enoch and Anne‑Marie Gulde, F&D Magazine (published December 19, 2025).