| GB33BUKB20201555555555 | | Valid IBAN, length, checksum, bank code, account and structure |
| GB94BARC10201530093459 | | Valid IBAN, bank code not found (bank cannot be identified): Valid length, checksum, bank code, account and structure |
| GB94BARC20201530093459 | | Invalid IBAN check digits MOD-97-10 as per ISO/IEC 7064:2003 |
| GB96BARC202015300934591 | | Invalid IBAN length must be "X" characters long! |
| GB02BARC20201530093451 | | Invalid account number |
| GB68CITI18500483515538 | | Invalid account number |
| GB24BARC20201630093459 | | Bank Code not found and invalid account |
| GB12BARC20201530093A59 | | Invalid account structure |
| GB78BARCO0201530093459 | | Bank Code not found and Invalid bank code structure |
| GB2LABBY09012857201707 | | Invalid IBAN checksum structure |
| GB01BARC20714583608387 | | Invalid IBAN checksum |
| GB00HLFX11016111455365 | | Invalid IBAN checksum |
| US64SVBKUS6S3300958879 | | Country does not seem to support IBAN! |