Czechia IBAN Validator CZ
Validate a Czechia IBAN and view its structure: checksum, bank code and format. 100% in your browser - no upload.
What is a Czechia IBAN?
A Czechia IBAN is the standardized 24-character account number used for Czechia bank transfers, starting with the country code CZ and 2 check digits followed by the national bank code and account number. It is validated with the ISO 13616 mod-97 checksum — paste one above to check it instantly, in your browser.
Enter an IBAN
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Czechia IBAN format
- Country code
- CZ
- Length
- 24 characters
- Structure
- CZ + 2 check digits + 20-character BBAN
- Example
- CZ65 0800 0000 1920 0014 5399
Czechia IBAN structure explained
How a Czechia IBAN is built, segment by segment, from our validated example:
Major Czechia banks and their codes
The national bank codes of the largest Czechia banks, embedded in every IBAN they issue:
| Bank | Kód banky | BIC / SWIFT |
|---|---|---|
| Komerční banka | 0100 | KOMBCZPP |
| ČSOB | 0300 | CEKOCZPP |
| MONETA Money Bank | 0600 | AGBACZPP |
| Česká spořitelna | 0800 | GIBACZPX |
| Fio banka | 2010 | FIOBCZPP |
| Citibank Europe | 2600 | CITICZPX |
| ING Bank | 3500 | INGBCZPP |
| TRINITY BANK | 2070 | MPUBCZPP |
| Banka CREDITAS | 2250 | CTASCZ22 |
| UniCredit Bank | 2700 | BACXCZPP |
| Air Bank | 3030 | AIRACZPP |
| Raiffeisenbank | 5500 | RZBCCZPP |
| J&T Banka | 5800 | JTBPCZPP |
| PPF banka | 6000 | PMBPCZPP |
| mBank | 6210 | BREXCZPP |
| Partners Banka | 6363 | PTBNCZPP |
Bank codes and BIC/SWIFT identifiers are provided for reference. Always confirm the full IBAN with your bank.
See all Czechia banks and their codesAbout Czechia IBANs
A Czechia IBAN starts with the country code CZ, followed by 2 check digits and the national account number (BBAN), for a total of 24 characters. ValidateFin verifies the mod-97 checksum (ISO 13616), the length and the format - entirely in your browser, no data sent to any server.
- •Czech account numbers may include an optional 6-digit prefix before the main account number, all encoded within the CZ IBAN.
- •The 4-digit kód banky (bank code) identifies the institution and is maintained by the Czech National Bank (ČNB).
- •Czechia is a SEPA country; a CZ IBAN works for euro SEPA payments, while domestic accounts are in Czech koruna (CZK).
Czechia IBAN — frequently asked questions
How many characters does a Czechia IBAN have?
A Czechia IBAN is exactly 24 characters long: the country code CZ, 2 check digits and a 20-character BBAN (national account number). Any Czechia IBAN that is shorter or longer than 24 characters is invalid.
How do I check whether a Czechia IBAN is valid?
Paste the IBAN into the validator above. ValidateFin verifies that it starts with CZ, has 24 characters and passes the mod-97 checksum defined by ISO 13616. The check runs entirely in your browser — nothing is uploaded to any server.
Where can I find my Czechia IBAN?
Your Czechia IBAN appears on your bank statements, in your online or mobile banking under account details, and on your bank card documentation. It always begins with the CZ country code followed by the 2 check digits.
What is the structure of a Czechia IBAN?
A Czechia IBAN (CZ) is made of the CZ country code, 2 check digits, the national bank code and the account number — 24 characters in total. The validator above breaks any Czechia IBAN down into these parts.
How do I find the bank from a Czechia IBAN?
The bank code is embedded right after the check digits in every Czechia IBAN. Match it against the bank code table above, or paste the IBAN into the validator to identify the issuing institution.