The accounting equation
Understand how assets, liabilities and capital connect and how transactions change the equation.
AAT Level 2 · ITBK
Introduction to Bookkeeping
Build the double-entry foundations used throughout accounting, from source documents and day books to ledgers and the trial balance.
Unit overview
Understand the method, not just the answer.
ITBK is the place where the accounting system starts to make sense. The unit develops the routine needed to record transactions accurately, understand why each entry has a debit and a credit, and keep the ledgers ready for checking.
Use this page as a starting point for your revision. Work through the topic areas, identify where confidence is lowest and combine independent practice with the linked downloads and free sessions.
Key topics
What to focus on in ITBK.
These topic summaries provide a revision map rather than a replacement for the current AAT specification and your training-provider materials.
Double-entry bookkeeping
Apply debit and credit rules confidently across common income, expense, asset, liability and capital accounts.
Source documents and day books
Record sales, purchases, returns, receipts and payments from the documents used by a business.
Ledger accounts
Post transactions to the sales, purchases, cash, bank and general ledgers using clear narratives and balances.
Cash books and petty cash
Record cash and bank transactions, discounts and petty-cash expenditure accurately.
Trial balance preparation
Balance ledger accounts and extract a trial balance as an initial check on bookkeeping accuracy.
How to revise this unit
- 1Practise short double-entry questions every session until the rules become automatic.
- 2Write the account type beside each account before deciding whether to debit or credit it.
- 3Complete ledger accounts in full, including balancing and bringing balances down.
- 4Use timed mixed-question practice once individual transaction types feel secure.
Common pitfalls
- !Choosing an entry from memory without identifying the two accounts involved.
- !Confusing the business bank account with the customer or supplier account.
- !Forgetting that a trial balance can agree even when some errors remain.
Free revision posters
Revision posters for ITBK.
Posters published for this unit appear here automatically. Open a poster to view it online or download the PDF for personal study.
Learn live
Upcoming sessions for ITBK.
Published events matching this unit appear automatically. When no direct match exists, the page may show another session at the same level.
ExamReady
ITBK practice questions and a timed mock, from 27 October.
This is independent revision support and is not produced, endorsed or approved by AAT. Always check the current AAT specification, assessment information and your training-provider guidance.