Check whether a Belarus IBAN is valid — country, length and mod-97 checksum — and break out the bank details. Instant and free, right in your browser.
| Country | Belarus (BY) |
| IBAN length | 28 characters |
| Structure | BY + 2 check digits + 24-character BBAN |
| Valid example | BY83 7654 3210 9876 5432 1098 7654 |
Every Belarus IBAN starts with BY and is 28 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 Belarus IBAN is exactly 28 characters long, beginning with the country code BY followed by two check digits and the national bank account number (BBAN).
A correctly-formed example is BY83 7654 3210 9876 5432 1098 7654. The two digits after BY are a mod-97 checksum that must match the rest of the number.
By confirming it is 28 characters, starts with BY, and passes the ISO 7064 mod-97 checksum. The tool above does all three instantly, in your browser — no data is sent anywhere.