During the one-month transition period after Bulgaria adopts the euro , ATMs across the country will distribute only euro banknotes. This measure will be in place during the dual circulation phase when both the lev and the euro will be legal tender. According to the Bulgarian National Bank (BNB), the official date for Bulgaria 's entry into the eurozone is expected to be January 1, 2026. Production and Supply of Euro Coins Preparations for the minting of Bulgarian euro coins are well underway.