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What is my tax identification number (TIN)?

What is my TIN and where can it be found?

Sheilah Fajardo avatar
Written by Sheilah Fajardo
Updated this week

The Tax Identification Number (TIN) is an identification number that’s used for tax purposes. Most countries issue them to identify their taxpayers and to help with the administration of tax affairs.

Information about the majority of European individual tax identification numbers and where these are made available can be found here.

TINs are different in every country. For example, in the UK, individuals have a National Insurance (NINo) number, and companies have a Corporation Tax number.

Individual UK TIN - National insurance number (NINo) - should appear in the following combination of letters and numbers - two letters, six numbers, one letter. Example: QQ 123456 C.

Your National Insurance Number (NINo) is most commonly found on tax-related documents like payslips (P60) or benefit letters. You can also find it online through your personal tax account or the HMRC App. If you're unable to locate it, you can use the "Find my National Insurance Number (NINO)" service on GOV.UK.

NI and claiming UK EIS and SEIS tax relief

If you’re a UK tax payer, you may be able to claim tax-relief through the UK Government’s two tax relief schemes: Seed Enterprise Investment Scheme (SEIS) and Enterprise Investment Scheme (EIS).

We’ve streamlined the tax documentation process for investors on Republic Europe. So, we issue digital tax certificates that come complete with all the relevant information needed to make the claim on your UK Income Tax return.

Your tax certificates are digitally stored in your Republic Europe account Portfolio area, from where you can easily download them electronically when submitting your tax return.

United Kingdom investors should note that tax treatment depends on the individual circumstances of each taxpayer and may be subject to change in the future. To learn more about how SEIS or EIS works, please read the online HMRC guidance or contact your professional tax advisor.

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