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What do IČO and DIČ mean in the Czech Republic?

IČO (short for the Czech term "Identifikační číslo osoby")

Simply put, this is the registration (identification) number of a Czech legal entity (company), a Czech individual entrepreneur, or another organization in the country. The number always consists of exactly 8 digits (digits only, and always exactly 8 digits). The number is always unique, cannot be duplicated, and serves as a unique identifier for the company or entrepreneur. It is automatically assigned when a legal entity is established or an individual entrepreneur is registered. Moreover, this number remains permanent. For example, a legal entity in the Czech Republic may undergo changes to its founders, registered office address, name, or even its legal form, but the IČO always remains unchanged.

For example, our company’s IČO is 24312134.

DIČ (short for the Czech term "Daňové identifikační číslo")

In short, this is the tax ID of a Czech company, entrepreneur, or another organization in the Czech Republic - essentially, a tax identification number under which the entity is registered with the Czech tax authorities. This number is identical to the registration number (IČO), but with the prefix CZ added at the beginning. The DIČ is also automatically assigned upon the establishment of a legal entity or the registration of an individual entrepreneur in the Czech Republic.

For example, our company’s DIČ is CZ24312134.

Both IČO and DIČ can be found in almost any extract relating to an entrepreneur. They are also stated on nearly all invoices, bills, receipts, and contracts concluded with the entrepreneur.

RusCzech Website Author
Arkadiy Agapov
(the author of this page, prepared the answer to this question)
Specialist in Company Registration in the Czech Republic
  • Regularly assists clients with the registration of legal entities in the Czech Republic
  • Practical experience in company registration since 2011, with more than 60 companies successfully registered
  • Direct interaction with all relevant Czech authorities and institutions involved in the registration process, including Czech notaries, the Commercial Register, tax authorities, and the Trade Licensing Office (Živnostenský úřad)
  • Works directly with RusCzech clients seeking company registration services and has practical knowledge of the current requirements and specifics of establishing Czech companies
  • When preparing the materials for this page, relies on personal practical experience, Czech corporate legislation (Zákon o obchodních korporacích), and official information published by the Ministry of Justice of the Czech Republic (Ministerstvo spravedlnosti České republiky)
  • Regularly updates this page to reflect changes in Czech legislation as well as practical changes in the administrative procedures for company registration

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