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IBAN
Checker

Paste any IBAN and we'll verify its structure, country format and checksum in an instant — before a typo costs you a returned payment fee.

Validation happens entirely in your browser — nothing you type is sent or stored.

Know your numbers

What is an IBAN, exactly?

An International Bank Account Number identifies an individual account across borders. It packs the country, bank, branch and account into one standardised string.

Country + check digits

The first two letters are the ISO country code (GB, DE, FR…). The next two digits are a checksum computed over the whole number.

Bank & branch

The following characters identify the institution and branch — in the UK, the BIC code and sort code; in Germany, the Bankleitzahl.

Account number

The remainder is the underlying account. Together, the full IBAN can be up to 34 characters, and each country fixes its own exact length.

Need your own IBANs?

FastXE accounts come with dedicated local receiving details — including named IBANs — in your business's name.