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Croatia

Croatia uses the Personal Identification Number (OIB) as the tax number for taxation purposes. It is a permanent 11-digit identifier for Croatian citizens, Croatian legal persons, and foreign natural or legal persons with a relevant official or tax connection to Croatia.

HR HRV 1 TIN type Last reviewed 2026-05-14

TIN types

1 published format. Open a type to see examples, structure details, and official sources.

Validate Croatia TIN
Croatian Personal Identification Number (OIB)
Current Individuals Entities

Ministarstvo financija, Porezna uprava (Ministry of Finance, Tax Administration)

The OIB is Croatia's permanent personal identification number and tax number, assigned to natural persons and legal persons for use in official records, taxation, business documents, payment transactions, and information exchange.

Details
Examples
12345678903 69435151530
Where to find it

On the Certificate of Personal Identification Number and, for individuals, on personal documents such as identity cards and passports. Legal persons and businesses use the OIB on applications, declarations, invoices, certificates, electronic business records, and payment transactions.

Common names
OIB PIN Personal Identification Number Osobni identifikacijski broj
Structure
1-10 Random sequence Ten randomly assigned digits with no encoded personal or entity information.
11 Control digit Control digit calculated for the OIB.
Official source
porezna-uprava.gov.hr oecd.org narodne-novine.nn.hr