Online ADIT Courses 

How do you like to study? We've got flexible options to suit you - from self-study programmes to comprehensive online courses. Choose an ADIT course to help you balance work and study.
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ADIT Principles of International Taxation

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ADIT Transfer Pricing
(Module 3.03)

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ADIT United Kingdom Tax
(Module 2.09)

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ADIT Ireland Taxation
(Module 2.06)

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ADIT United States Tax
(Module 2.10)

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ADIT UK Tax Study Manual
(Online + Print)

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Advanced Diploma in International Taxation

The gold standard in international tax, awarded by the UK's Chartered Institute of Taxation.
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Why choose ExtraTax Training as your ADIT course provider?

ExtraTax Training is recognised by the UK's Chartered Institute of Taxation as a course provider for the Advanced Diploma in International Tax (ADIT) qualification. We support you on your journey to becoming an International Tax Affiliate of the CIOT:
  •  Flexible online study options
  •  Enthusiastic and engaging tutors
  •  Excellent customer satisfaction
  •  Live classes in small groups
  •  Proven exam success strategies

Customer Reviews

Since launching in 2020, we have delivered courses to tax professionals from over 35 countries around the world. Here's what they told us about the ExtraTax experience:

Transfer Pricing Manager

United States
Exactly what I needed to be prepared for the ADIT Transfer Pricing exam! The instructor was fantastic and gave a lot of great, practical tips for the exam. I always felt comfortable asking questions during class. ExtraTax genuinely cares and wants everyone to succeed!

Head of Investment Banking

South Africa
I felt that the ExtraTax Training tutors were in the "trenches alongside me" - providing individualised support and guidance. ExtraTax Training is a 'premier league' ADIT online course provider and is highly recommended to all prospective ADIT students!

In-house Tax Manager

United Kingdom
My employer recognises ADIT as the best option for developing the team's international tax knowledge and is supporting me through the qualification. From the first lecture with ExtraTax, I realised that the course would greatly enhance my international tax expertise.

Why study ADIT?

"As the first person in Ireland to gain ADIT status, I know the benefits of ADIT and am a huge supporter of the qualification. My aim with ExtraTax is to help tax professionals around the world to develop their careers by achieving ADIT"
Catriona Loughran, Founder, ExtraTax Training
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The Advanced Diploma in International Taxation opens doors, garners respect, and gives you confidence. It is hard work but it is undoubtedly valuable.
Tax Partner, International Law Firm
Completing the ADIT qualification and becoming an International Tax Affiliate of the Chartered Institute of Taxation has been central to my development as a specialist in international taxation.
Senior Manager, In-house Transfer Pricing Team

Want to find out more about the ADIT International Tax qualification? We can help!

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We're here to answer your questions.

Whether your question is about ADIT or tailored tax training for you and your team, the ExtraTax team is happy to help. 

Check out the answers to Frequently Asked Questions

How do I achieve ADIT status? What are the benefits of ADIT? Should I study ADIT or CTA? How long does it take to study ADIT? Find the answers to these questions and many more...

Find the answers to your ADIT questions in our blog.

Our blog will help you on your ADIT journey - from where to start with ADIT to finding the best study resources and tips for passing your ADIT exams.

Do you have questions about our online ADIT International Tax courses?

Please email our team on info@extrataxtraining.com or call us on +44 (0)28 9590 5990. We're happy to answer your questions on the ADIT qualification and your study options.
The part of my job that I love most is supporting our students throughout their ADIT studies. 

Kristen Gillanders

Having been through the experience myself, I like helping others to realise their potential with the ADIT qualification.

Catriona Loughran