What is an IBAN number?

IBAN — short for International Banking Account Number and sometimes referred to as IBAN code, IBAN key, or IBAN number — is used to identify an individual bank account participating in a cross-border transaction.

While IBAN does not replace an actual banking account number, it provides supplemental information that helps track payments and process FX transfers. An IBAN number is also not the same as a routing number.

IBAN was originally developed for European nations in need of a common standard to identify bank accounts, but it is now recognized in over 85 countries. If you’re making an international transfer — especially if either party’s bank is based in Europe — you may be asked to provide an IBAN.

Understanding IBAN formats

An IBAN can contain up to 34 characters, with the exact length varying from country to country.

The general format is as follows:

  • Two-letter country code, such as DE (Germany), GB (United Kingdom), or FR (France)
  • Two check digits
  • Up to 30 alphanumeric characters representing the basic bank account number (BBAN)

A complete IBAN for a German account holder looks like this:

A complete IBAN for a UK account holder looks like this:

The format of a SWIFT/BIC number

IBAN vs. SWIFT/BIC codes

You might see IBAN and SWIFT/BIC codes mentioned alongside one another and, in some instances, a bank may require each standard to complete a transfer. However, IBAN and SWIFT don’t represent the same information. IBAN identifies individual accounts and SWIFT identifies a specific financial institution.

How to check your IBAN

Usually, you can find your IBAN via your online banking account or by reviewing bank statements. In some cases, it may appear on your bank card. When in doubt, contact your bank and they will provide you with the correct number.

You should always double check that you have the correct IBAN before making an international transfer. The wrong code could result in your money being sent to an unknown recipient, while using a code with the incorrect format could leave you paying added fees even if the transfer isn’t processed.

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