French IBAN generator

IBANs in France have 27 characters and start with FR. 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

FR7620041010054564790433862

  1. Country FR
  2. Check digits 76
  3. Bank code 20041
  4. Branch code 01005
  5. Account number 45647904338
  6. National check 62
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

French IBAN format

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

IBAN length 27
BBAN length 23
BBAN pattern 5n5n11c2n
Structure FRkk bbbbb ggggg ccccccccccc kk
Example, electronic FR1420041010050500013M02606
Example, print FR14 2004 1010 0505 0001 3M02 606
Letters in the BBAN Positions 15–25: letters or digits
National check digits Positions 26–27
IBAN check digits FR76 when the account number has only digits
Same structure as Monaco (MC)
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 FR
Check digits 3–4 2 14
Bank code 5–9 5 20041
Branch code 10–14 5 01005
Account number 15–25 11 0500013M026
National check 26–27 2 06

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.

National check digits

Besides the two IBAN check digits, FR IBANs carry national check digits inside the BBAN, at positions 26–27. They come from the domestic account number and follow a national rule.

This is the clé RIB: 97 minus the remainder of 89 × bank code + 15 × branch code + 3 × account number, divided by 97. Letters in the account number first become digits (A and J count as 1, B, K and S as 2, and so on).

This generator calculates them with the official algorithm, in both modes, so validators that check them accept the IBANs on this page.

Because of this check, an all-digit BBAN always leaves the same remainder when divided by 97, so every FR IBAN whose account number has only digits starts with FR76. Letters in the account number change the check digits.

Source: CFONB, RIB standard (Banque de France).

How national check digits work

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 Branch code
BNP Paribas 30004 00777
Société Générale 30003 03010
LCL 30002 00421
La Banque Postale 20041 01005
Crédit Agricole Paris et Ile-de-France 18206 00208
Caisse d'Epargne Ile-de-France 17515 90000
Crédit Mutuel 10278 06398
CIC 30066 10021

What to test with FR IBANs

  • Accept exactly 27 characters for FR, after removing spaces, and reject 26 or 28.
  • Letters or digits at positions 15–25: a digits-only regex rejects valid FR IBANs. Realistic mode, the default, uses digits only there; with Realistic off, the generator puts letters there about half the time.
  • For a negative test of the national check, change the character at position 26 and recalculate the IBAN check digits (the validator suggests them). The IBAN then passes MOD-97 but fails the national check.
  • Same structure as Monaco (MC). The country code is part of the MOD-97 calculation, so a valid FR IBAN with another country code in front must fail.
  • Ready-made invalid values for negative tests: FR1420041010050500013M02607 (last character changed, MOD-97 fails) and FR1420041010050500013M0260 (one character missing).
  • Bank directory checks: by default the generator uses real bank codes such as 30003 (Société Générale), and random ones with Realistic off, so you can test a known and an unknown bank.

About IBANs in France

French IBANs have 27 characters and carry the old domestic RIB inside them: a 5-digit bank code, a 5-digit branch code (code guichet), an 11-character account number and the 2-digit RIB key (clé RIB). The account number can contain letters, so a validator that expects only digits will reject real French IBANs. The RIB key is a national check, separate from the IBAN check digits. France was the first country to issue IBANs, in 1997.

Questions about IBANs in France

How long is an IBAN in France?

27 characters: the country code FR, two check digits and a national part (BBAN) of 23 characters.

What does an IBAN from France look like?

For example FR14 2004 1010 0505 0001 3M02 606. That is the print format, in groups of four. Forms and files usually take it without spaces: FR1420041010050500013M02606.

Can French IBANs contain letters?

Yes. Letters or digits are allowed at positions 15–25, and the registry example has 0500013M026 there.

Where is the bank code in French IBANs?

The bank code, at positions 5–9: 20041 in the registry example. The branch code is at positions 10–14 (01005). By default (realistic mode) the generator uses real bank codes, such as 30004 for BNP Paribas.

Will a test IBAN for France pass validation?

It passes the checks most forms run: country code, length, character format and MOD-97 check digits. The national check digits inside the BBAN are computed with the official algorithm, so a validator that also checks them accepts this IBAN. 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 French 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.