Tool
IBAN Validator
Check any IBAN for correct format, country, length, and MOD-97 checksum. Covers 80+ countries. Runs entirely in your browser — nothing is sent to Demivolt.
Demivolt · IBAN Validator
Check any IBAN for format and checksum
Covers 80+ countries. Validation runs entirely in your browser — no data leaves the page.
Try an example
Validation uses the ISO 13616 standard and the MOD-97 checksum. No data is transmitted or stored.
What is an IBAN?
An IBAN, or International Bank Account Number, is a standard format used to identify bank and payment accounts across borders. It includes a country code, check digits and a country-specific account number structure, helping banks and payment institutions check the format before a transfer is sent.
An IBAN does not confirm that an account exists or that it belongs to a specific person or company. It only checks whether the number follows the correct structure and passes the MOD-97 checksum, which can help catch typing mistakes before a payment is made.
FAQ
Answers before you send
The IBAN Validator checks whether an IBAN has the correct country code, length, format and MOD-97 checksum.
This can help catch typing mistakes, missing characters or invalid IBAN structures before you use the number for a payment.
No. A valid IBAN means the number follows the correct format and passes the checksum.
It does not confirm that the account is active, that the account can receive payments or that it belongs to the person or company who provided it.
No. The validation runs entirely in your browser, so the IBAN is not sent to Demivolt, stored or processed on our servers.
This makes the tool useful for quick format checks without sharing account details with anyone.
Yes. Checking an IBAN before sending a payment can help reduce simple mistakes such as mistyped digits, missing characters or incorrect formatting.
You should still confirm the account holder, payment details and payment purpose separately before sending money.
The validator uses the ISO 13616 IBAN format and the MOD-97 checksum method.
These checks confirm whether the IBAN structure is internally consistent, but they do not replace payment screening, account verification or compliance checks.
Yes. Any IBAN that passes validation here is well-formed for SEPA payment systems, provided the country is in the SEPA zone.
The tool shows a SEPA badge on the result when the country is part of the SEPA zone.
The two digits that follow the country code (positions 3 and 4) are the check digits, computed from the rest of the IBAN using the MOD-97 algorithm.
If even a single character of the IBAN is mistyped, the checksum fails — which is how the validator can spot typos before you send a payment.
All 80+ countries in the ISO 13616 registry, including the 36 SEPA-zone countries.
It also covers countries in the Middle East, North Africa, Eastern Europe and the Caribbean that have adopted the IBAN standard.
Need a business payment account with a dedicated IBAN?
Demivolt provides regulated business payment accounts, dedicated IBANs, payments and currency services for companies that need a licensed financial partner for everyday operations.