Validate any IBAN bank account number — instantly, privately, free.
Copy your IBAN from your bank statement or online banking portal.
Paste it into the field above — spaces are ignored automatically.
Validation runs instantly. No button, no delay.
Format check only
This tool checks format only. It validates structure and checksum, but does not confirm that a bank account exists, is active, belongs to a person, or can receive payments. It does not perform financial, identity, or bank verification.
How this IBAN check works
An International Bank Account Number (IBAN) is a globally standardised format defined by ISO 13616 for identifying bank accounts across borders. Every IBAN consists of a 2-letter country code, 2 check digits, and a country-specific Basic Bank Account Number (BBAN). Using this free IBAN validator online before sending a wire transfer helps prevent costly rejected transactions caused by a single mistyped character.
IBAN = International Bank Account Number — defined by ISO 13616.
Length: 15 characters (Norway) to 34 characters (maximum allowed).
Structure: 2-letter country code + 2 check digits + BBAN (domestic account).
Validation: mod-97 checksum rearranges the IBAN and divides by 97 — result must equal 1.
Coverage: 70+ countries, including all 36 SEPA member states.
SEPA: within the Single Euro Payments Area, IBAN alone routes a payment.
IBANs do not expire — they are valid as long as the bank account remains open.
Cannot be used at a card checkout — IBAN is for bank transfers only.