IBAN validator and parser

What is an 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 Structure

An IBAN consists of up to 34 alphanumeric characters, including:

• Country code – a two-letter country code (ISO 3166-1 alpha-2)
• Check digits – two digits calculated from the remaining characters
• Basic Bank Account Number (BBAN) – up to 30 alphanumeric characters that identify the account, branch, and bank code

Using This Tool

Enter an IBAN in the input field above to validate it. The tool will check:

• If the IBAN format is valid
• The country code
• The Basic Bank Account Number (BBAN)
• If it's a QR-IBAN (used in Switzerland for QR invoices)
• Various checksums and format rules