Check whether a Portugal IBAN is valid — country, length and mod-97 checksum — and break out the bank details. Instant and free, right in your browser.
| Country | Portugal (PT) |
| IBAN length | 25 characters |
| Structure | PT + 2 check digits + 21-character BBAN |
| Valid example | PT51 7654 3210 9876 5432 1098 7 |
Every Portugal IBAN starts with PT and is 25 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 Portugal IBAN is exactly 25 characters long, beginning with the country code PT followed by two check digits and the national bank account number (BBAN).
A correctly-formed example is PT51 7654 3210 9876 5432 1098 7. The two digits after PT are a mod-97 checksum that must match the rest of the number.
By confirming it is 25 characters, starts with PT, and passes the ISO 7064 mod-97 checksum. The tool above does all three instantly, in your browser — no data is sent anywhere.