Czech Republic IBAN Format
Czech Republic IBANs are 24 characters and start with CZ. Paste one below to check its length and MOD-97 checksum.
Enter an IBAN to check its country, length and MOD-97 checksum.
Note This checks that the IBAN is well-formed — correct country, correct length and a valid checksum. It cannot confirm that the account actually exists or belongs to a particular person. Always confirm payment details with the recipient.
How a Czech Republic IBAN is built
Czech RepublicIBAN & VAT reference
| Country code | CZ |
|---|---|
| IBAN length | 24 characters |
| Example | CZ65 0800 0000 1920 0014 5399 |
| SEPA member | Yes |
| VAT prefix | CZ |
| VAT / tax number | CZ + 8, 9 or 10 digits |
How to check a Czech Republic IBAN
- 01 Paste the IBAN into the box above — spaces and lower-case are fine, they are normalised for you.
- 02 The checker confirms it starts with CZ, is 24 characters, and passes the MOD-97 checksum.
- 03 A valid IBAN is shown formatted in groups of four; any failed check is called out so you know what to fix.
Frequently asked questions
What is the IBAN format for Czech Republic?
A Czech Republic IBAN is 24 characters long. It starts with the country code "CZ", followed by 2 check digits and the BBAN — 4-digit bank code + 6-digit account prefix + 10-digit account. Example structure: CZ65 0800 0000 1920 0014 5399 (a sample, not a real account).
How long is a Czech Republic IBAN?
Exactly 24 characters, including the "CZ" country code and the 2 check digits. This length is fixed by the ISO 13616 registry and is the same for every Czech Republic bank.
What is the VAT number format for Czech Republic?
Czech Republic VAT numbers use the prefix "CZ": CZ + 8, 9 or 10 digits. The VAT number is separate from the IBAN — one identifies the business for tax, the other identifies the bank account.
Does this Czech Republic IBAN checker upload my data?
No. The validator checks the country code, the 24-character length and the MOD-97 checksum entirely in your browser. Nothing you paste is sent anywhere.