IBAN format and checksum validator

Check an IBAN against its country format and MOD 97 checksum.

Text Stateless

A passing check does not confirm that a bank account exists or belongs to a particular person.

Quick guide

Try an example

You enter

Sample IBAN
GB82 WEST 1234 5698 7654 32

You get

Format and checksum
Valid
Country code
GB
How it works and limits

Use a sample IBAN. The check applies the country structures in the SWIFT registry.