Finance

Factbox-Criteria to adopt the euro currency

Published by Uma Rajagopal

Posted on December 16, 2024

2 min read

· Last updated: January 28, 2026

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Factbox on euro adoption criteria with focus on inflation and economic stability - Global Banking & Finance Review
This image illustrates the key criteria for adopting the euro currency, focusing on inflation, public finances, exchange rates, and long-term borrowing costs, relevant to Bulgaria's potential entry into the euro zone.
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BRUSSELS (Reuters) – Bulgaria might enter the euro zone and become the bloc’s 21st member on January 1, 2026, if it receives a green light from the European Commission and the European Central Bank in 2025. European Union countries aspiring to adopt the single currency need to fulfill criteria in four areas: inflation, public finances, […]

BRUSSELS (Reuters) – Bulgaria might enter the euro zone and become the bloc’s 21st member on January 1, 2026, if it receives a green light from the European Commission and the European Central Bank in 2025.

European Union countries aspiring to adopt the single currency need to fulfill criteria in four areas: inflation, public finances, the exchange rate and long-term borrowing costs.

INFLATION

  • Inflation in the candidate country needs to be close to that in the three best performing EU members for a period of one year before examination of the country’s bid. The upper limit for inflation is calculated as the average of the three best performers, plus 1.5 percentage point.

DEFICIT/DEBT

  • A country’s budget deficit must be below the European Union’s limit of 3 percent of gross domestic product (GDP) in a sustainable way.

EXCHANGE RATE
  • A candidate country’s currency must remain relatively stable against the euro over two years, in what is called the Exchange Rate Mechanism (ERM-2). The currency can appreciate, but should not devalue in a significant way.

LONG-TERM BORROWING COSTS
  • Yields on long-term government bonds issued by the candidate country should not be more than 2 percentage points above the average of the three European Union countries with the lowest inflation, which were used for setting the price stability criterion. (Reporting by Jan Strupczewski)

Frequently Asked Questions

What is inflation?
Inflation is the rate at which the general level of prices for goods and services rises, eroding purchasing power. It is typically measured as an annual percentage increase.
What is the Exchange Rate Mechanism (ERM-2)?
The Exchange Rate Mechanism (ERM-2) is a system that helps stabilize a country's currency against the euro, requiring it to maintain a stable exchange rate for at least two years.
What are long-term borrowing costs?
Long-term borrowing costs refer to the interest rates on loans or bonds that a borrower must pay over an extended period, which can impact financial stability.
What is the role of the European Commission?
The European Commission is the executive branch of the European Union, responsible for proposing legislation, implementing decisions, and upholding EU treaties.

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