Tax ID Number Validation: How to do it right & avoid tax risks

Tax ID Number Validation: How to do it right & avoid tax risks

March 8th, 2023 | 3:00PM GMT | 4:00PM CET

Not validating Tax ID Numbers (TINs) leads to unnecessary financial risk. However, while tax professionals know that TIN validation is fundamental to tax compliance, it can be extremely cumbersome to perform.

Join Fonoa as they elaborate on why TIN validation is crucial and debate the age-old question of Build vs. Buy. They’ll be joined by Karina Ozer, Tax Manager, Data and Tech Strategy from to moderate the debate – and offer insights into her own tax ID validation journey.

You’ll learn how to:

  • Overcome challenges around TIN validation
  • Manage TIN validation globally (beyond VAT & VIES)
  • Weigh the pros/cons of Building and Buying

Fonoa’s team has built TIN validation solutions at leading technology companies, and they will share the good, the bad, and the ugly.

If your company is validating tax numbers – which you probably are – this is a must-attend. We hope to see you there!


Karina Ozer
Karina OzerTax Manager - Data & Tech Strategy

Tax tech expert with 15+ years in Indirect Taxes, specializing in data and technology. Passionate about tax transformation, automation, and data-driven compliance.

Visit Karina’s LinkedIn
Alexander Kobakhidze
Alexander KobakhidzeDirector of Tax Technology

Fonoa's Tax Evangelist & Director of Tax Tech. Former Head of Tax Tech at Uber. Based in Croatia, passionate about global tax solutions, and that’s why he decided to join Fonoa.

Visit Alexander’s LinkedIn
Rob van der Woude
Rob van der WoudeChief Tax Officer

Fonoa's Chief Tax Officer, ex-Head of EMEA Tax at Uber, with extensive tech consulting experience in US and EMEA. Based in Bucharest & Amsterdam.

Visit Rob’s LinkedIn

Learn how Fonoa automates your tax and compliance workflows for greater control and scale

Let’s talk