IBAN Checker

Paste the number and the check starts automatically. Spaces, lowercase letters, and the word "IBAN" in front of the number do not interfere.

What is checked

• the country is in the IBAN registry, and the number length matches the one accepted there;
• each part of the number follows the country's format: in a German number, only digits come after the check digits; in a UK number, the bank code comes first as four letters;
• the check digits pass the mod 97 test and fall between 02 and 98, as the ISO 13616 standard requires;
• the national check digit of the account number, for 21 countries including France, Italy, Spain, Belgium, Poland, and the Czech Republic.

If the number has a typo

The page will go through the numbers that result from your input by one character replacement, a swap of two adjacent characters, an extra character, or a missing one, and show the ones that pass all the checks. Any of them could be the correct one, so compare the suggestion against the document.

What the check cannot tell you

A valid IBAN does not mean the account is open or belongs to the right person. Only the receiving bank knows that.