ADIT — Advanced Diploma in International Taxation (CIOT)
The global standard in international and cross-border tax.
Comparing options? Read ACCA vs CPA vs CMA vs CFA →Quick answer
- Best for
- The global standard in international and cross-border tax.
- Not ideal for
- If you only do domestic UK tax — ATT/CTA fit better.
- Main roles
- International tax adviser, transfer pricing, cross-border structuring and in-house tax.
- CPD
- CIOT members complete CPD relevant to their tax work each year.
Last reviewed: June 2026
Who it's for
Tax professionals and advisers working across borders — a strong fit for those serving international clients.
Structure
Three module exams: the mandatory Principles of International Taxation, plus two options (or an extended essay), all within five years.
Time & cost
Typically 1–2 years; modular and flexible.
Careers
International tax adviser, transfer pricing, cross-border structuring and in-house tax.
The skills you'll build
Many of these serve more than one path.
Best free resources for this path
Curated and vetted, with how to start.
Free syllabus, past exam papers and examiner reports for the ADIT international-tax modules.
How to start: Open tax.org.uk/adit and download the past papers and study guides.
45+ free modules covering the IFRS standards, with a certificate.
How to start: No registration to study; add your name before the assessment for the certificate.
Free, CPE-eligible webcasts on tax, audit, accounting and regulation from the Big 4.
How to start: Search '<firm> webcasts / Dbriefs' and register free per session.
Thousands of university finance/accounting courses you can audit free; financial aid for certificates.
How to start: Free account; click 'Audit', or apply for financial aid for a certificate.
Free, self-paced Excel and Power BI training — essential analyst skills for any finance path.
How to start: Free with a Microsoft account; the optional PL-300 exam is paid.
Continuing professional development (CPD)
CIOT members complete CPD relevant to their tax work each year.
Get these hours for free →Disclaimer
Links to third-party resources are provided for convenience and learning only. Fileminder does not control third-party content, prices, certificates, CPD/CPE eligibility, availability or accuracy. Always check the provider's own page before relying on a course, certificate, CPD unit or learning outcome. Last reviewed: June 2026.