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OIB (Personal Identification Number / Tax ID)
Croatia
Last verified: 2026-02-20
Fees, fines, and deadlines are approximate. Always verify with official sources.
Key Registrations & Procedures
OIB (Personal Identification Number / Tax ID)
Deadline: Must obtain before starting employment or any official transaction
Processing Time: 1–5 working days. Can sometimes be issued same day.
Fees: Free
Appointment: No appointment needed. Walk-in at local Tax Office.
Required Documents:
- Valid passport or national ID card
- Proof of Croatian address (rental contract or registration certificate)
- Completed OIB request form (Zahtjev za OIB — available at the office)
Where to Do It:
Local Tax Administration office (Ispostava Porezne uprave). In Zagreb: Avenija Dubrovnik 32. Available in every major city.
If You Don't Do It:
No fine for not having one, but the OIB is required for employment, banking, healthcare, utilities, and virtually all official interactions in Croatia.
Regional Variations: Same process nationwide. OIB is a single national system.
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