Advanced Diploma in International Taxation (ADIT)
The globally recognized gold standard certification for international tax professionals, awarded by the Chartered Institute of Taxation (CIOT) UK
What is ADIT?
ADIT is an advanced qualification in international taxation designed by world-leading experts. It demonstrates high-level expertise in cross-border tax matters and is highly valued by Big Four firms, international law firms, and revenue authorities worldwide.
Upon qualification, you can become an International Tax Affiliate of CIOT and use the designatory letters 'ADIT' after your name, significantly enhancing your professional credibility and career prospects.
How to Qualify:
- ✓ Module 1: Principles of International Taxation (Mandatory)
- ✓ Modules 2 & 3: Choose any two optional modules from jurisdictional or thematic options
- ✓ Alternative: Replace one optional module with an Extended Essay (15,000-20,000 words)
Key Dates - December 2025
📅 December 2025 Session
- Student Registration: By 2 September 2025
- Exam Entry Deadline: 16 September 2025
- Late Entry (£103 fee): Until 30 September
- Exam Dates: 9-11 December 2025
- Results: February 2026
💰 Investment
- Student Registration: £220 (valid 5 years)
- Exam Entry: £269 per module
- Extended Essay: £269
⏰ Registration Deadline Approaching!
Ensure you register by September 2nd to sit December exams
Available ADIT Modules
Choose from a wide range of jurisdictional and thematic modules to tailor your qualification
Core Module (Mandatory)
🌐 Module 1: Principles of International Taxation
Foundation module based on OECD and UN Model Conventions. Covers residence, double tax treaties, treaty interpretation, transfer pricing fundamentals, OECD/UN work, and international tax avoidance.
Required for all ADIT candidates
📍 Jurisdictional Modules
- 🇦🇺 Australia
- 🇭🇰 Hong Kong
- 🇮🇳 India
- 🇮🇪 Ireland
- 🇲🇹 Malta
- 🇸🇬 Singapore
- 🇿🇦 South Africa
- 🇬🇧 United Kingdom ✓ MojiTax
- 🇺🇸 United States
🎯 Thematic Modules
- 💱 Transfer Pricing ✓ MojiTax
- 🏦 Banking ✓ MojiTax
- ⚡ Energy Resources 🏆 MojiTax #1
- 🇪🇺 EU Direct Tax
- 🇪🇺 EU VAT ✓ MojiTax
Energy Resources: Best global results Dec 2023 & June 2024
Note: Most popular modules available in December session
MojiTax ADIT Study Options
Individual Components
From £150
per component
- ✓ Standard Course
- ✓ Exam Focus Materials
- ✓ Question Vault
- ✓ MojiTax Cheat Book
Perfect for targeted learning
Browse CatalogueModule Bundles
£550
per complete module
- ✓ All 4 components included
- ✓ Comprehensive coverage
- ✓ Save £50 per module
- ✓ Exam-ready preparation
Save £250 vs buying separately
View BundlesADIT Complete Bundle
£1,800
for 3 modules
- ✓ Full ADIT qualification prep
- ✓ 5 years access
- ✓ All materials included
- ✓ Priority support
Complete qualification package
Explore Complete Bundle💎 Monthly Subscription Option
Access ADIT courses through our flexible subscription plans
Extended Essay Support
📝 One-on-One Essay Guidance
Replace one optional module with a 15,000-20,000 word Extended Essay on an international tax topic of your choice. Get expert guidance from MojiTax tutors throughout your research and writing process.
10 Hours Support
£750
Essential guidance
20 Hours Support
£1,400
Comprehensive support
30 Hours Support
£1,950
Intensive guidance
Ready to Start Your ADIT Journey?
Join thousands of tax professionals worldwide who have advanced their careers with ADIT certification
📅 Next Steps for December 2025
1. Register with CIOT by September 2nd
2. Choose your modules and study plan
3. Enroll with MojiTax for exam preparation
4. Enter for December 2025 exams by September 16th
Have questions? We're here to help