**type**: ``string`` **default**: ``null``

..versionadded::4.3

The ``iban`` option was introduced in Symfony 4.3.

An IBAN value to validate that the BIC is associated with it.

ibanMessage

**type**: ``string`` **default**: ``This Business Identifier Code (BIC) is not associated with IBAN {{ iban }}.``

..versionadded::4.3

The ``ibanMessage`` option was introduced in Symfony 4.3.

The default message supplied when the value does not pass the combined BIC/IBAN check.

ibanPropertyPath

**type**: ``string`` **default**: ``null``

..versionadded::4.3

The ``ibanPropertyPath`` option was introduced in Symfony 4.3.

It defines the object property whose value stores the IBAN used to check the BIC with.

For example, if you want to compare the ``$bic`` property of some object