A Taxpayer Identification Number, or TIN, is a unique combination of characters assigned by a country’s tax authority to a person (individual or entity) and used to identify that person for the purposes of administering the country’s tax laws.

TIN structure is set by the national authorities. Some countries may have a different TIN structure for different categories of individuals.

In some countries, another high integrity number with an equivalent level of identification (a functional equivalent) may be used instead of a TIN to identify a particular person. If you happen to be from such a country, please use that number for the TIN field in the Enhanced application.

Some countries, on the other hand, do not issue a TIN in any situation, issue it only in specific cases or only to business entities.

If your country does not issue TIN or its equivalents to individuals or you are not eligible for a TIN (or its equivalents), please enter "000" in the TIN field.

The above examples are neither meant to be exhaustive, nor to constitute tax advice. If you need help to determine your TIN, please seek professional tax or legal advice.

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