Netherlands IBAN Validator & Format Checker
Validate and decode any Netherlands International Bank Account Number (IBAN). Test the structure against the official format mask, check digits, and run an offline bank lookup.
Netherlands IBAN Structure Rules
Every International Bank Account Number in Netherlands follows a standardized format registry layout:
| Country Code | NL (Netherlands) |
| Total Length | 18 characters |
| SEPA Member | Yes (SEPA Member) |
| Structure Format Mask | NL48 ABCD 1234 5678 90 |
| BBAN Regex Pattern | ^[A-Z]{4}[0-9]{10}$ |
| Bank Code Range | Characters 5 to 8 (4 digits) |
| Account Number Range | Characters 9 to 18 (10 digits) |
Frequently Asked Questions
How long is a Netherlands IBAN?
A Netherlands IBAN consists of exactly 18 characters. It starts with the country code 'NL', followed by two check digits, and then the Basic Bank Account Number (BBAN).
What is the format of a Netherlands IBAN?
The official format mask for a Netherlands IBAN is 'NL48 ABCD 1234 5678 90'. The BBAN component matches the structure pattern '^[A-Z]{4}[0-9]{10}{{FAQ_ACCORDION}}#039;.
Does Netherlands participate in SEPA?
Netherlands is a member of the Single Euro Payments Area (SEPA). Euro payments can be processed under SEPA rules.
How do I decode a Netherlands IBAN?
A Netherlands IBAN can be decoded into: the country code 'NL' (characters 1-2), check digits (characters 3-4), and the domestic bank account identifier containing the bank identifier (characters 5-8), and account number (characters 9-18).