Boost your tax expertise  

Learn from experienced tax professionals to build your skills in tax advisory, international tax and transfer pricing.

Cross-Border Tax Conference
17th October 2023

Join us on Tuesday 17 October for our second annual Cross-Border Tax Conference in Killeavy Castle Estate. Hear UK & Irish tax experts discuss the corporate and personal tax issues arising from cross-border expansion. 
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Why study ADIT with us?

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

What is ADIT?

Here's what the CIOT say:

The ADIT qualification is a highly respected international tax learning programme, with students in over 120 countries worldwide. Designed by world-leading experts, it is a challenging and rigorous qualification that will reward you and your career.  

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
The Advanced Diploma in International Taxation opens doors, garners respect, and gives you confidence. It is hard work but it's 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

After the ExtraTax course, I am not only feeling ready for the exam, but also see extreme improvements in my technical expertise that I can apply right away in my job.

Graduate Trainee
Boutique Tax Firm

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.

Online ADIT courses

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Customer Reviews

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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.

Book online today!

Join us for the December 2023 ADIT exam sitting

Meet our team

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All of our instructors are highly qualified tax professionals, with practical experience in international tax. With the help of their real world examples, you will learn how to apply your knowledge, helping you to succeed.
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Catriona Loughran

Founder and Managing Director
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Patricia Browne

Head of Tax Training

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Kristen Gillanders

Business Development Manager

Looking for tailored tax training?

We offer training to tax professionals and businesses in UK, Irish and international tax. 

Contact us

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We are happy to answer your questions.

Address

55-59 Adelaide Street, Belfast, BT2 8FE, UK

Phone Number

+44 (0)28 9590 5990

Email

[email protected]