A value added tax identification number or VAT identification number (VATIN) is an identifier used in many countries, including the countries of the European Union, for value added tax purposes. In the EU, a VAT identification number can be verified online at the EU's official VIES website. It confirms that the number is currently allocated and can provide the name or other identifying details of the entity to whom the identifier has been allocated. However, many national governments will not give out VAT identification numbers due to data protection laws.