IBAN format · PT
Portugal IBAN format
IBANs issued in Portugal are 25 characters long and follow the ISO 13616 structure below.
Country code
PT
Total length
25 chars
Check-digit algo
MOD 97-10
ISO 13616 pattern
4!n4!n11!n2!n
4 digits (digits (0–9)), then 4 digits (digits (0–9)), then 11 digits (digits (0–9)), then 2 digits (digits (0–9))
Structure breakdown
The IBAN is read left to right: a 2-letter country code, 2 check digits, then the country-specific BBAN split into 4 fields.
Country code
ISO 3166 — Portugal
PT
Check digits
MOD 97-10 checksum
27
BBAN field 1
4 digits · digits (0–9)
0123
BBAN field 2
4 digits · digits (0–9)
0123
BBAN field 3
11 digits · digits (0–9)
01234567890
BBAN field 4
2 digits · digits (0–9)
01