Clearstream Banking has informed its clients that effective 1 January 2026 the Republic of Bulgaria will officially join the Eurozone and adopt the euro (EUR) as its national currency.
On 8 July 2025, the Council of the European Union adopted the final three legal acts required for Bulgaria to introduce the euro. One of these acts sets the official conversion rate at:
1 EUR = 1.95583 BGN
This fixed rate is based on the current central rate of the Bulgarian lev (BGN) in the Exchange Rate Mechanism (ERM II).
The conversion from BGN to EUR will be carried out by dividing the value in BGN by the full value of the exchange rate fixed for this purpose, expressed in the full five decimals.
The resulting euro amount shall be rounded to the second decimal, applying the third decimal rounding rule, in accordance with the following rule:
- If the third decimal is less than five, the second decimal remains unchanged.
- If the third decimal is greater than or equal to five, the second decimal is increased by one unit.
Nominal value of one share is converted from BGN to EUR. Nominal value in BGN is divided by the full value of the official exchange rate and the result is rounded according to the above rounding rule.
Total nominal value of debt securities in BGN is divided by the full value of the official exchange rate and the nominal value of the issue in EUR is obtained. The result obtained is rounded to the second decimal according to the above rounding rule.
The nominal value of one bond in euro is obtained by dividing the total nominal value of the bond issue received in euro by the number of bonds in the issue.
Nominal value of Government bonds will be converted from BGN to EUR. The result obtained is rounded to the second decimal according to the above rounding convention.
Currency conversion required for all BGN cash balances and deposits
Cash balances to be converted into EUR at the official conversion rate 1.95583 per EUR 1.
The conversion from BGN to EUR will be carried out by dividing the value in BGN by the full value of the exchange rate fixed for this purpose, expressed in the full five decimals.
The resulting euro amount shall be rounded to the second decimal, applying the third decimal rounding rule, in accordance with the following rule:
- If the third decimal is less than five, the second decimal remains unchanged.
- If the third decimal is greater than or equal to five, the second decimal is increased by one unit.
