Luxembourg IBAN Validator & Format Checker
Validate and decode any Luxembourg International Bank Account Number (IBAN). Test the structure against the official format mask, check digits, and run an offline bank lookup.
Luxembourg IBAN Structure Rules
Every International Bank Account Number in Luxembourg follows a standardized format registry layout:
| Country Code | LU (Luxembourg) |
| Total Length | 20 characters |
| SEPA Member | Yes (SEPA Member) |
| Structure Format Mask | LU62 1231 2345 6789 0123 |
| BBAN Regex Pattern | ^[0-9]{3}[A-Z0-9]{13}$ |
| Bank Code Range | Characters 5 to 7 (3 digits) |
| Account Number Range | Characters 8 to 20 (13 digits) |
Frequently Asked Questions
How long is a Luxembourg IBAN?
A Luxembourg IBAN consists of exactly 20 characters. It starts with the country code 'LU', followed by two check digits, and then the Basic Bank Account Number (BBAN).
What is the format of a Luxembourg IBAN?
The official format mask for a Luxembourg IBAN is 'LU62 1231 2345 6789 0123'. The BBAN component matches the structure pattern '^[0-9]{3}[A-Z0-9]{13}{{FAQ_ACCORDION}}#039;.
Does Luxembourg participate in SEPA?
Luxembourg is a member of the Single Euro Payments Area (SEPA). Euro payments can be processed under SEPA rules.
How do I decode a Luxembourg IBAN?
A Luxembourg IBAN can be decoded into: the country code 'LU' (characters 1-2), check digits (characters 3-4), and the domestic bank account identifier containing the bank identifier (characters 5-7), and account number (characters 8-20).