Check whether a Slovenia IBAN is valid — country, length and mod-97 checksum — and break out the bank details. Instant and free, right in your browser.
| Country | Slovenia (SI) |
| IBAN length | 19 characters |
| Structure | SI + 2 check digits + 15-character BBAN |
| Valid example | SI15 7654 3210 9876 543 |
Every Slovenia IBAN starts with SI and is 19 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 Slovenia IBAN is exactly 19 characters long, beginning with the country code SI followed by two check digits and the national bank account number (BBAN).
A correctly-formed example is SI15 7654 3210 9876 543. The two digits after SI are a mod-97 checksum that must match the rest of the number.
By confirming it is 19 characters, starts with SI, and passes the ISO 7064 mod-97 checksum. The tool above does all three instantly, in your browser — no data is sent anywhere.