An IBAN (International Bank Account Number) is an internationally agreed means of identification for bank accounts. The IBAN is needed for making foreign transactions, receiving payments from foreign countries and making transfers outside Estonia.

The Estonian IBAN has 20 digits. A six-digit combination of letters and numbers has been added in front of the old domestic account number:

From 1 February 2014 the IBAN is used in Estonia and the old domestic account number is no longer valid.