IBAN means International Bank Account Number.
The IBAN is made up of a code that identifies the country the account belongs to, the account holder's bank and the account number itself. The IBAN makes it easier and faster to process cross-border payments. Your IBAN consists of 16 alphanumerical characters, which are structured as follows: 2 letters representing the home country ('BE') of the account-holding bank (ISO 3166 country code), 2 numbers that are a control key and your current account number.
Your IBAN number is required for the new SEPA direct debit mandate documents.
BIC means Bank Identifier Code. identifies the beneficiary's bank quickly and easily (the BIC is the same as the bank's SWIFT address).
Good to know: You can convert your current account number to IBAN on following site: www.ibanbic.be.