Validate IBAN
If a digit or two are unknown, enter question marks instead (e.g., DE12500?0?170648489890). The IBAN will then be automatically completed.
Find IBAN
About IBAN
The International Bank Account Number (IBAN) is an internationally agreed system of identifying bank accounts across national borders to facilitate the communication and processing of cross-border transactions.
IBAN consists of up to 34 alphanumeric characters comprising a country code, check digits and a bank account number. The length varies depending on the country.
The IBAN was originally adopted by the European Committee for Banking Standards (ECBS) and later as an international standard under ISO 13616:1997. The current standard is ISO 13616:2020 which indicates SWIFT as the formal registrar.
Expert Information
This IBAN calculator and validator tool has been developed by our team of banking and finance experts with over 10 years of experience in international payment systems. Our calculations follow the official ISO 13616 standard for IBAN validation.
All country-specific IBAN formats are regularly updated according to the latest specifications published by SWIFT, the official registrar of the ISO 13616 standard.
Why IBAN Validation Matters
Invalid IBANs are one of the leading causes of failed international transfers, resulting in delayed payments, additional fees, and administrative overhead. Our tool helps you verify IBAN validity before initiating transfers, potentially saving you time and money.
According to banking industry statistics, approximately 5% of all international transfers experience delays or failures due to incorrect account details, including invalid IBANs.
Useful Banking & IBAN Resources
SWIFT - Official IBAN Registry
Access the official registry of IBAN formats maintained by SWIFT.
Visit SWIFT Website →European Central Bank
Information about SEPA (Single Euro Payments Area) payments and regulations.
ECB SEPA Information →European Payment Council
Resources about SEPA and other European payment schemes.
Visit EPC Website →ISO 13616 Standard
Details about the international standard that defines IBAN structure.
ISO 13616 Details →