Luxembourg IBAN Validator LU
Validate a Luxembourg IBAN and view its structure: checksum, bank code and format. 100% in your browser - no upload.
What is a Luxembourg IBAN?
A Luxembourg IBAN is the standardized 20-character account number used for Luxembourg bank transfers, starting with the country code LU and 2 check digits followed by the national bank code and account number. It is validated with the ISO 13616 mod-97 checksum — paste one above to check it instantly, in your browser.
Enter an IBAN
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Luxembourg IBAN format
- Country code
- LU
- Length
- 20 characters
- Structure
- LU + 2 check digits + 16-character BBAN
- Example
- LU28 0019 4006 4475 0000
Luxembourg IBAN structure explained
How a Luxembourg IBAN is built, segment by segment, from our validated example:
Major Luxembourg banks and their codes
The national bank codes of the largest Luxembourg banks, embedded in every IBAN they issue:
| Bank | Bank code | BIC / SWIFT |
|---|---|---|
| Spuerkeess (BCEE) | 001 | BCEELULL |
| Banque Internationale à Luxembourg (BIL) | 002 | BILLLULL |
| BGL BNP Paribas | 003 | BGLLLULL |
| Banque de Luxembourg | 008 | BLUXLULL |
| Banque Raiffeisen | 009 | CCRALULL |
| ING Luxembourg | 014 | CELLLULL |
| Deutsche Bank Luxembourg | 036 | DEUTLULL |
| Société Générale Luxembourg | 061 | SGABLULL |
| POST Group (CCP Luxembourg) | 111 | CCPLLULL |
| Advanzia Bank | 344 | ADVZLULL |
| Keytrade Bank Luxembourg | 359 | KEYTLULL |
| Quintet Private Bank | 705 | KBLXLULL |
Bank codes and BIC/SWIFT identifiers are provided for reference. Always confirm the full IBAN with your bank.
See all Luxembourg banks and their codesAbout Luxembourg IBANs
A Luxembourg IBAN starts with the country code LU, followed by 2 check digits and the national account number (BBAN), for a total of 20 characters. ValidateFin verifies the mod-97 checksum (ISO 13616), the length and the format - entirely in your browser, no data sent to any server.
- •The Luxembourg bank code is only 3 digits, reflecting the small number of institutions in the Grand Duchy's banking sector.
- •Luxembourg IBANs have no branch code — the 13-character account number follows the 3-digit bank code directly.
- •Luxembourg is a SEPA and eurozone country, so a LU IBAN works for all standard euro payments.
Luxembourg IBAN — frequently asked questions
How many characters does a Luxembourg IBAN have?
A Luxembourg IBAN is exactly 20 characters long: the country code LU, 2 check digits and a 16-character BBAN (national account number). Any Luxembourg IBAN that is shorter or longer than 20 characters is invalid.
How do I check whether a Luxembourg IBAN is valid?
Paste the IBAN into the validator above. ValidateFin verifies that it starts with LU, has 20 characters and passes the mod-97 checksum defined by ISO 13616. The check runs entirely in your browser — nothing is uploaded to any server.
Where can I find my Luxembourg IBAN?
Your Luxembourg IBAN appears on your bank statements, in your online or mobile banking under account details, and on your bank card documentation. It always begins with the LU country code followed by the 2 check digits.
What is the structure of a Luxembourg IBAN?
A Luxembourg IBAN (LU) is made of the LU country code, 2 check digits, the national bank code and the account number — 20 characters in total. The validator above breaks any Luxembourg IBAN down into these parts.
How do I find the bank from a Luxembourg IBAN?
The bank code is embedded right after the check digits in every Luxembourg IBAN. Match it against the bank code table above, or paste the IBAN into the validator to identify the issuing institution.