AAT · Level 4 Diploma
INAC Internal Accounting Systems and Controls books, second-hand.
The standard books for AAT INAC from Kaplan and BPP - check which edition is worth buying, then get it used from someone who just passed.
Edition guide
Buying INAC books second-hand
What to check before you buy an older edition.
Can I use an older INAC book?
This unit's content is stable across the Q2022 syllabus period (live since September 2022, no replacement announced), so older Q2022 editions remain substantively valid - publishers reprint each academic year with a new ISBN but near-identical content. One of the best-value used buys in professional study. Note: the Q2022 Level 4 diploma is being replaced from September 2026 (last Q2022 assessments July 2028), so check which syllabus you're enrolled on before buying.
Always double-check the edition against your exam sitting before buying. When in doubt, AAT's official syllabus documents are free and definitive.
INAC books for sale
Fresh listings from candidates who just finished this paper.
Other AAT papers
Edition guides for the rest of the qualification.