Where do I find my tax identification number?
Every country uses its own tax identification number (Tax ID / TIN / NIF / etc.). The name, format, where to find it, and an official source link differ by country.
Tax identification numbers are used by authorities to uniquely identify individuals for tax purposes. Depending on your country of residence, this number may appear under a different name (for example Steuer-ID in Germany, NIF in Spain, Codice Fiscale in Italy, or AHV-Nummer in Switzerland).
It is important that you provide the correct number for your country of tax residence when using Cryptonow, so that reporting obligations and tax reports can be processed correctly.
To make it easier, we’ve prepared a complete country overview for the European Union and Switzerland. For each country, you will find:
the local name of the tax number
its format and typical examples
where you can usually find it (documents, National ID cards, portals)
a link to the official tax authority website
| Country | Name / Local term | Format / Example | Where to find it | Official source |
|---|---|---|---|---|
| Austria 🇦🇹 | Steuernummer / Steuerliche Identifikationsnummer | 9 digits | FinanzOnline account, official tax letters | BMF |
| Belgium 🇧🇪 | Numéro d’identification / Rijksregisternummer | 11 digits | National ID card, official letters | SPF Finances |
| Bulgaria 🇧🇬 | ЕГН (EGN) / ЛНЧ (for foreigners) | 10 digits | ID card, tax notices | NRA |
| Croatia 🇭🇷 | OIB (Osobni identifikacijski broj) | 11 digits | ID card, tax return | Porezna uprava |
| Cyprus 🇨🇾 | Tax Identification Code (TIC) | 9 characters | Tax return, letters from Tax Department | Tax Dept |
Important
Use only the official number issued by your tax authority.
Do not confuse with social security numbers, unless explicitly the same (e.g. Denmark, Sweden, Switzerland).
Formats may vary — always confirm with your national tax office.
In short
Your tax ID is required for tax reporting and compliance. Use the table above to locate the correct number for your country, and check the official link for the latest information.