Business Identifier Code, or BIC, is a unique short code that serves for the identification of banks, their branches, credit unions, and other money institutions. For SEPA CT within the Eurozone, these are usually not needed, but sometimes a bank may require this information to issue Direct Debit payments.
A BIC contains four digits that stand for the bank code, a two-digit country code, and two to five digits (letters or numbers) that indicate the exact bank office.