102040 – Reportable Information: Taxpayer Identification Number

The taxpayer identification number (TIN) is the unique identifier assigned to the Account Holder by the tax administration in the Account Holder’s jurisdiction of tax residence. It is a unique combination of letters and/or numbers used to identify an individual or entity for the purposes of administering the tax laws of that jurisdiction.

Any identifier assigned by a jurisdiction of the source, for example, for identifying a person whose income has been subject to withholding tax at source, should not be reported. 

Some jurisdictions do not issue a TIN, or do not issue a TIN to all residents, and where no TIN has been issued there will be nothing to report unless they use other high integrity numbers with an equivalent level of identification. For individuals these include:

  • Social Security number
  • National Insurance number
  • Citizen or personal identification code or number ·Resident registration number

For entities, jurisdictions may use a business/company registration code or number where no TIN has been issued. 

Some jurisdictions that issue TINs have a domestic law that does not require the collection of the TIN for domestic reporting purposes, Australia for example. There is a standard approach in international tax treaties that stops the sending jurisdiction from requesting information from local sources if the receiving jurisdiction could not ask for under its own domestic rules. The reporting financial institution is not required to collect the TIN for those jurisdictions. Details of the jurisdictions where this applies will be published on the OECD website.

The TIN must be reported for all new accounts. For pre-existing accounts, the TIN is reportable to the extent that it is already held in records maintained by the reporting financial institution or the reporting financial institution is otherwise obliged to collect it. Where the TIN is not held in respect of pre-existing accounts, the reporting financial institution must use reasonable efforts to obtain it by the end of the second calendar year following the year in which the accounts are identified as Reportable Accounts. 

As Reportable Persons may be resident in more than one jurisdiction, they may have two or more TINs that the financial institution must report. 

US Agreement 

The TIN to be reported for FATCA purposes is the US Federal Taxpayer Identification Number. 

Crown Dependencies and Overseas Territories Agreements 

For Gibraltar the identifier to be reported for individuals is a social security number. 

For Guernsey, the identifier to be reported for individuals is a social security number. 

For the Isle of Man, the identifier to be reported for individuals is a national insurance number. 

For Jersey, the identifier to be reported for individuals is a social security number.