The IBAN is a standardized structure for bank account
numbers, used internationally to uniquely identify a current, savings, or fund
account of a customer in
a financial entity.
IBAN as a national account
standard will make it possible to have a single account number for both
local and international transactions.
For details about this standard, you can
consult the Official
Entities that need to obtain the files for use in websites and facilitate the conversion of client account to IBAN, may request them
in the BCCR.
information about the IBAN and change process in Costa Rica (Spanish)