Tax identification number
TIN
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The number issued by the country of tax residence to identify a taxpayer.
If a country does not issue a TIN or does not require it, the reason is documented under the CRS.
In practice
In practice, each person in the structure has one tax identification number per country of tax residence, and each entity its own. The numbers are stored with the issuing country and checked for the correct format, because banks reject self-certifications with implausible numbers. When a person moves, the new number is added and the previous one kept with an end date.
Distinctions and common mistakes
A tax identification number is not always a separate number; some countries use another identifier, such as a social security number, for tax purposes. A common mistake is to leave the field empty without stating one of the reasons accepted under the CRS.
Relevant in: EU-wide
Related terms
- Common Reporting Standard
- The OECD's global standard for the automatic exchange of information on financial accounts.
- Tax residence
- The country in which a person is subject to unlimited tax liability because of residence, stay or other criteria.
Mentioned in these guides
- DAC8 and CARF: reporting of crypto-assetsWhat DAC8 and the OECD Crypto-Asset Reporting Framework mean for family offices holding crypto-assets: timeline in the EU and Switzerland and how to prepare.
- CRS classification of family structures, step by stepFinancial institution, active or passive NFE? How holdings, foundations and trusts are classified for AEOI/CRS – with a decision path and an example.