Check whether a Gibraltar IBAN is valid — country, length and mod-97 checksum — and break out the bank details. Instant and free, right in your browser.
| Country | Gibraltar (GI) |
| IBAN length | 23 characters |
| Structure | GI + 2 check digits + 19-character BBAN |
| Valid example | GI60 7654 3210 9876 5432 109 |
Every Gibraltar IBAN starts with GI and is 23 characters long. The two digits after the country code are a checksum (ISO 7064 mod-97) computed from the rest of the number, so a single mistyped character makes the whole IBAN invalid — which is exactly what this validator catches before a payment is sent.
A Gibraltar IBAN is exactly 23 characters long, beginning with the country code GI followed by two check digits and the national bank account number (BBAN).
A correctly-formed example is GI60 7654 3210 9876 5432 109. The two digits after GI are a mod-97 checksum that must match the rest of the number.
By confirming it is 23 characters, starts with GI, and passes the ISO 7064 mod-97 checksum. The tool above does all three instantly, in your browser — no data is sent anywhere.