Advanced Diploma in International Taxation

ADIT (the Advanced Diploma in International Taxation) is a professional qualification and credential, offered globally by the UK-based Chartered Institute of Taxation (CIOT) to international tax professionals.

As of August 2021, there were more than 5,000 ADIT students, graduates and International Tax Affiliates in approximately 120 countries. The biggest employers of ADIT professionals are the “Big Four”, major international law firms, industry and commerce, and revenue authorities.

A candidate who successfully completes ADIT is awarded the ADIT credential. Candidates who wish to adhere to professional requirements by retaining an ongoing link with the CIOT can apply to become an International Tax Affiliate of the Chartered Institute of Taxation. This subscription package entitles the Affiliate to a number of benefits and resources, including the right to use the letters 'ADIT' after their name, discounts and priority access for online CIOT events, and access to the CIOT’s international branch network.

Affiliates are able to demonstrate their commitment to high standards of ethical and professional behaviour by adhering to the ADIT Code of Conduct.