AAT L4 Audit and Internal Controls (L4PAT syllabus)
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Duration: 110 Hours
Level: 4
Exams: 1

New for 2026! This study book is for the L4PAT syllabus which was launched in September 2026.
Our unique materials are completely up-to-date and mirror the syllabus as set by the Association of Accounting Technicians (AAT).
Tried and tested, and written by our very own course specialists.
This unit teaches you about the role and importance of internal controls within an organisation. You will explore the purpose and components of internal controls and understand how they impact organisations. All organisations must guard against fraud through good internal control systems, and a key aim of this unit is to provide you with the tools to identify fraud risks and assess how internal controls can be used to mitigate those risks.
You will also cover the concepts and principles of audit and assurance, gaining a clear understanding of the regulatory environment and the role of corporate governance — from planning and risk assessment through to the completion and production of the audit report.
- Understand the role of internal controls within an organisation
- Understand fraud risk and how internal controls mitigate it
- Understand the audit and assurance framework
- Evaluate the planning process for audit and assurance
- Evaluate procedures for obtaining sufficient and appropriate evidence
- Review and report findings
Note: this unit combines what was previously two separate Q2022 units — Internal Accounting Systems and Controls, and Audit and Assurance — into a single mandatory unit.
As this is a self-study option, there are no prerequisites. AAT itself sets no prerequisites for the L4PAT qualification, though we’d recommend you have either completed Level 2 & 3 previously, or have sufficient knowledge to embark upon this level of study.
Basic numerical skills and a good understanding of the English language is also an advantage.
Training Link focuses on only three subjects: Accounting, Bookkeeping, and Payroll.
This keeps us focused on delivering the best student experience. And that’s why over the last 30 years we’ve won over 30 awards – from AAT’s Best New Training Provider in 2018 to ICB’s Large Training Provider of the Year on 13 occasions.
- Printed workbook containing lessons, examples, activities and mock exam
- Activities and Mock exams Answer Book
- Materials available online
- Six months unlimited (24/7) access to our online portal
- Online Assessments
- Additional Online Resources
AAT was established in 1980 and is the world’s leading professional body for accounting technicians with over 130,000 members.
AAT’s qualifications are internationally-recognised, OfQual regulated, and the syllabus has been developed after feedback from businesses so students develop real-world skills which improve their employability. They award 80% of all vocational qualifications in accounting.
Organisations such as Sainsbury’s, P&G, Morgan Stanley, the Ministry of Defence and many more continue to hire AAT qualified members for their knowledge, skills, and diligence.
Studying for an AAT qualification is a much more cost-effective option for school-leavers. It offers the promise of a career in a well-respected profession and doesn’t lead to the eye-watering levels of debt associated with a typical university education.
80% of AAT members that have completed an AAT accounting qualification agree that it has increased their earning potential.*
* – source – AAT’s salary survey 2021
This unit is assessed by a single computer-based assessment wholly computer marked.
If you choose to sit the exam at the end of this unit, you would be required to have registered as a student with the AAT first (registrations for L4PAT open from 1 September 2026). You would then contact your nearest testing centre to book your exam, or book remote invigilation.
To find your nearest venue go to https://www.aat.org.uk/assessment/assessment-venue/search
Tutor support is often overlooked, and whilst it might not be needed at all times, isn’t it good to know that if push comes to shove, you have access to tutor support – Even on a self-study option?
Purchase tutor support when you need it – For one month…or longer, the choice is entirely yours!
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Study Manual Price
£31.00