Why do ADIT?

The international tax professional today has a varied background, and is expected to be increasingly mobile with an understanding of more than one taxation system.

Designed by a board of world-leading experts, ADIT has been created to provide the robust foundation in international tax that today's professional needs to stand out from the crowd.

It is a challenging and rigorous qualification but will reward you, your career, and your employer.

Authoritative technical knowledge

The ADIT qualification was developed and is supervised by an Academic Board consisting of several prominent international tax practitioners and scholars:

  • Prof. Philip Baker
  • Prof. Rita de la Feria
  • Malcolm Gammie
  • Prof. Ruth Mason
  • Prof. Zhu Qing (朱青)
  • Prof. Diane Ring
  • Jim Robertson
  • Prof. Luís Eduardo Schoueri
  • Dr Partho Shome
  • Prof. Kees van Raad
  • Jefferson VanderWolk
  • Prof. Richard Vann

The overall standard of ADIT is comparable to a postgraduate qualification. ADIT is a professional qualification intended for senior level tax professionals and managers, or people working towards a senior level in international tax.


Flexible with work commitments and study commitments - exams are held twice a year, with different exam combinations available to sit online. The exams are modular, so you can take them in any order or all at the same sitting.

Five years to graduate - your student registration expires after five years. If you find yourself beyond that time frame with modules left to complete, you can renew your registration.

Extended essay option on the subject and jurisdiction of your choice - should you not want to study the current jurisdictions offered, you can do a 15,000-20,000 word extended essay in place of one of the option modules.

Choice of study options - depending on your commitments and resources available, there are a variety of tuition choices available including a wide range of online courses.

No pre-requirements to register as a student or take exams - we only require an email address so that we can keep in contact with you. Tax professionals around the world have a wide variety of backgrounds and this qualification works to ensure that there are few obstacles to improving your own, or your team's, credentials.

Broaden your scope

Many international tax professionals have learned 'on the job', or they are accountants or lawyers or work for the national revenue office doing international tax. This qualification truly identifies you as an international tax specialist. It will 'fill in the gaps' of your knowledge of international tax and other jurisdictions.

The exams are up to date and based on current case law. They cover the trends and what are now important areas in international tax.

ADIT is a practical qualification - there is a combined focus on the academic understanding but also on the practical, 'real life' application.

A global syllabus

To achieve the ADIT qualification, every student has to pass the Principles of International Taxation module and also demonstrate ability in specialist international tax subjects by passing any two jurisdiction-based or thematic option modules.

A growing worldwide community and network of international tax professionals

Join a growing community of ADIT students, graduates and International Tax Affiliates in more than 120 countries and territories around the world - every continent, major market centre, and every business sector represented.

You can continue to contribute to the ADIT network, wherever your career takes you.

You will have the confidence that the ADIT community will all have taken the same exams and you will recognise the standard of this peer group.

The CIOT runs conferences and online events which ADIT students, graduates and Affiliates can attend.

Join the ADIT Professional Group on LinkedIn. As an ADIT student, graduate or Affiliate, you have the opportunity to join and network with international tax professionals around the world.