Dutch IBAN generator

IBANs in the Netherlands have 18 characters and start with NL. The one below is random, follows the national structure and passes the MOD-97 check, so form validation accepts it. No bank issued it.

Format

NL47ASNB7705223543

  1. Country NL
  2. Check digits 47
  3. Bank code ASNB
  4. Account number 7705223543
Generate a list Up to 100 IBANs, as CSV, JSON, SQL or plain text

In CSV, JSON and SQL, every IBAN segment (bank, branch, account, check digits) gets its own column.

MOD-97 valid

Realistic mode: real bank code, random account number. No bank issued this IBAN, but it could match a real account by chance. Never use it for payments.

Check an IBAN

Paste an IBAN from any country to check its length, format and check digits.

Without JavaScript, this form opens the full IBAN validator.

Full IBAN validator

Dutch IBAN format

Length, pattern and the position of each segment in NL IBANs, with a sample IBAN.

IBAN length 18
BBAN length 14
BBAN pattern 4a10n
Structure NLkk bbbb cccccccccc
Example, electronic NL91ABNA0417164300
Example, print NL91 ABNA 0417 1643 00
Letters in the BBAN Positions 5–8: always letters
National check digits None
SEPA Member (EPC list, December 2025)
Source SWIFT IBAN Registry, Release 102 (June 2026)

Position by position

Segment Positions Length Example
Country 1–2 2 NL
Check digits 3–4 2 91
Bank code 5–8 4 ABNA
Account number 9–18 10 0417164300

In the pattern, n stands for a digit, a for an uppercase letter and c for a letter or digit. The number before each letter is how many characters that block has.

Real bank codes in realistic mode

In realistic mode, the default, the generator takes the bank code from this list and keeps the account number random, so no bank issued these IBANs. With Realistic off, the bank code is random too.

Bank Bank code
ABN AMRO ABNA
ING INGB
Rabobank RABO
ASN Bank ASNB
ASN Bank (ex SNS) SNSB
RegioBank RBRB
Triodos Bank TRIO
bunq BUNQ
Knab KNAB

What to test with NL IBANs

  • Accept exactly 18 characters for NL, after removing spaces, and reject 17 or 19.
  • Letters are required at positions 5–8. Test lowercase input too, and convert it to uppercase before you validate.
  • Ready-made invalid values for negative tests: NL91ABNA0417164301 (last character changed, MOD-97 fails) and NL91ABNA041716430 (one character missing).
  • Bank directory checks: by default the generator uses real bank codes such as INGB (ING), and random ones with Realistic off, so you can test a known and an unknown bank.

About IBANs in the Netherlands

Dutch IBANs have 18 characters. After the check digits comes a 4-letter bank code, such as ABNA for ABN AMRO or INGB for ING, followed by a 10-digit account number. The letters in the BBAN make Dutch IBANs a useful test for validators that only accept digits. Dutch banks started issuing IBANs in August 1999.

Questions about IBANs in the Netherlands

How long is an IBAN in the Netherlands?

18 characters: the country code NL, two check digits and a national part (BBAN) of 14 characters.

What does an IBAN from the Netherlands look like?

For example NL91 ABNA 0417 1643 00. That is the print format, in groups of four. Forms and files usually take it without spaces: NL91ABNA0417164300.

Can Dutch IBANs contain letters?

Yes. NL IBANs always have uppercase letters at positions 5–8: ABNA in the registry example.

Where is the bank code in Dutch IBANs?

The bank code, at positions 5–8: ABNA in the registry example. By default (realistic mode) the generator uses real bank codes, such as ABNA for ABN AMRO.

Will a test IBAN for the Netherlands pass validation?

It passes the checks most forms run: country code, length, character format and MOD-97 check digits. In realistic mode, the default, the bank code is real too, so a bank directory check accepts it. An account lookup or a payee name check will not confirm it, because the account number is random.

Can I use a generated Dutch IBAN to sign up for a service or receive money?

No. It is test data that no bank issued to you. Money sent to it is rejected or, if the number happens to belong to someone, reaches a stranger, and using it for a sign-up, a free trial or a direct debit is misuse. Your own IBAN is in your banking app and on your statements.

Other countries

Pick a country to see its IBAN format and get a valid test IBAN. The number next to each code is the IBAN length.