Country guide

Czechia

Czechia uses the Czech birth number (rodné číslo) as the main personal TIN-like identifier, the IČO for registered persons such as legal entities and individual entrepreneurs, and VČP when the tax administrator assigns a substitute numeric identifier. Czech DIČ values generally use "CZ" followed by the applicable numeric core identifier.

CZ CZE 3 TIN types Last reviewed 2026-05-14

TIN types

3 published formats. Open a type to see examples, structure details, and official sources.

Validate Czechia TIN

Czech Birth Number (Rodné číslo)

Current Individuals

Ministerstvo vnitra České republiky (Ministry of the Interior of the Czech Republic)

Personal identifier used for Czech taxpayers and shown on official identity documents as the personal number.

Details

Examples

780101/0019 520101/123

Where to find it

On Czech identity documents and, for foreign nationals, on residence or registration documents where the Ministry of the Interior has assigned one.

Common names

Rodné číslo RČ Personal Number Birth Number

Structure

1-2 Year Last two digits of the year of birth.

3-4 Month code Month of birth, with an offset used for women and for some overflow series.

5-6 Day Day of birth.

8-10 or 8-11 Suffix Distinguishing sequence for people born on the same day; the 10-digit form includes a final control digit.

Official source

oecd.org mv.gov.cz e-sbirka.gov.cz

Czech Identification Number (IČO)

Current Individuals Entities

Registr osob (Register of Persons), through the competent public-register editor

Eight-digit identifier assigned through the Register of Persons to legal persons, entrepreneurial natural persons, state organisational units, and other registered persons.

Details

Examples

25596641 00006947

Where to find it

In the Register of Persons, ARES or the relevant public register, and on registry extracts or tax-administration records for registered subjects.

Common names

IČO IČ Identifikační číslo osoby

Structure

1-7 Serial Core sequence assigned through the Register of Persons.

8 Check digit Control digit derived from the preceding digits.

Official source

apl2.czso.cz statistikaamy.csu.gov.cz szrcr.cz adisspr.mfcr.cz

Czech Tax Administrator Own Identifier (VČP)

Current Individuals Entities

Správce daně / Finanční správa České republiky (Tax administrator / Financial Administration of the Czech Republic)

Substitute numeric identifier assigned by the Czech tax administrator when a taxpayer does not have the usual general identifier for the core of the Czech tax identification number.

Details

Examples

123456789

Where to find it

On tax-administration registration or payment correspondence when the tax administrator assigns it.

Common names

VČP Vlastní číslo plátce Own payer number

Structure

1-9 Identifier Tax-administrator-assigned numeric identifier.

Official source

financnisprava.gov.cz