IBAN format · LU
Luxembourg IBAN format
IBANs issued in Luxembourg are 20 characters long and follow the ISO 13616 structure below.
Country code
LU
Total length
20 chars
Check-digit algo
MOD 97-10
ISO 13616 pattern
3!n13!c
3 digits (digits (0–9)), then 13 characters (alphanumeric (A–Z, 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 2 fields.
Country code
ISO 3166 — Luxembourg
LU
Check digits
MOD 97-10 checksum
77
BBAN field 1
3 digits · digits (0–9)
012
BBAN field 2
13 characters · alphanumeric (A–Z, 0–9)
ABCD1234EFGH5