An International Account Number (IBAN) in 2026 is defined by an international and standardized account number system that has been adopted by the majority of the banks worldwide allowing an easier way to proceed transactions within different bank account holders.
The IBAN account number objective is to help to have a single standard worlwide for any account holder, individuals and companies in order to avoid a jungle of different account number formats that are not easy to use.
The International Account Number (IBAN) consists of a serial of numbers called also International Bank Account Number and that has x numbers with each number giving a specific information such as country, bank and more about the account holder of an IBAN number.
The IBAN reference number has between 14 and 34 characters depending on the country as a combination of several series of numbers and letters identifies a bank account, it is these elements that allow the account holder to carry out different transactions.
The International Account Number (IBAN) in 2026 presents a format that includes the following letters and number and they mean:
The first two letters correspond to the country code of your bank account;
The two digits following these letters correspond to a control key linked to your account;
Then the next 23 characters correspond to the BBAN (Basic Bank Account Number) that includes:
Bank code.
Branch code .
Bank account number .
Country code digit .
IBAN LIST OF COUNTRY CODES 2026