Unit 2 · Double-Entry System & Ledger Accounts
2-3 The General Journal and the Ledger
Two books, doing two different jobs. The journal records transactions in the order they happened; the ledger gathers them by account. Without the ledger, as the book puts it, “financial transactions remain scattered”. This lesson posts a full month — and then compares the result with the page the book prints, which does not match.
Guiding question
If the journal already records every transaction, why is a ledger needed at all? (p.43)
Learning outcome. By the end you can write a journal entry with all five of its required parts, post a month of transactions to T-accounts, balance every account, and check a printed model answer against your own working instead of copying it.
That makes it excellent for one question — what happened on 15 January? — and useless for another: how much cash do we have? Answering the second from a journal means reading every page of it and adding up as you go. Which is exactly why the ledger exists.
The book’s wording, which is what an exam wants: The general journal is the book where transactions are recorded chronologically using the double-entry system. It is the first step in the accounting cycle after transaction analysis. (p.42)
The five parts of an entry, and why each is there
p.42 says each journal entry must include at least one debit account, at least one credit account, and must maintain the accounting equation. It then lists the five parts an entry includes:
1 · Date
so the entry can be placed in a period — and so accruals can be judged
2 · Accounts affected
the output of the analysis from lesson 2-1
3 · Debit amount
what increased on the left of the equation
4 · Credit amount
and what matched it on the right
5 · Description
the part everyone skips, and the only one that survives forgetting
The book’s own wording, which is what an exam wants: 1. Date · 2. Accounts affected · 3. Debit amount · 4. Credit amount · 5. Brief description of the transaction. (p.42)
The description earns its place. Six months later, Dr Creditors 10,000 · Cr Cash 10,000 tells you a debt was settled and nothing about which one or why. A narration — “part payment to supplier for January credit purchase” — is what turns an entry back into an event. It is also the first thing an auditor asks for when the amounts look right and something still seems wrong.
So the same transaction is written down twice, in two books, and that is not duplication. The journal answers what happened, and when? The ledger answers where does this account stand? Neither book can answer the other’s question without being rewritten into the other’s shape.
The book’s wording, which is what an exam wants: If the journal records transactions chronologically, the ledger organizes them systematically. Without the ledger, financial transactions remain scattered. With the ledger, each account shows a summary of its financial effects. (p.43)
Where the comparison breaks down: A diary and an address book hold different information. The journal and the ledger hold exactly the same information, arranged twice — which is why one can be rebuilt from the other, and why a discrepancy between them means somebody made a mistake in copying rather than in observing.
Below are the book’s own six transactions for Noor Trading (p.43). Post them one at a time. Every T-account is built from the journal entry shown above it, so nothing is copied from the printed page.
When all six are posted, press compare with what p.44 prints. Do not skip that step — it is the point of the lesson.
Noor Trading, January — the book’s own six transactions
Post them one at a time. Every account here is built from the journal entry above it, so nothing is copied from the printed page — which matters, because when you switch on the comparison at the end you will find the printed page and the journal do not agree.
Nothing posted yet. Press 1. The journal entry appears first and the T-accounts are built from it — which is the order p.43 describes: analyse, journalise, then post.
Total postedDr 0 · Cr 0
🧮 The Cash account, footed carefully — and why p.44 cannot be right
- 1
List what genuinely increases cash: the owner’s 100,000 and the 30,000 cash sale. Total debits 130,000.
Why this step: Cash is an asset, so it increases on the debit side. Only two of the six transactions put money in.
- 2
List what reduces it: 40,000 for equipment, 5,000 of rent, and 10,000 paid to the supplier. Total credits 55,000.
Why this step: Three payments out, all credits to cash. Note the third one — the supplier payment — because it is where the printed page goes wrong.
- 3
Balance: 130,000 − 55,000 = 75,000 on the debit side.
Why this step: And this is exactly the figure p.44 states. So the book’s ANSWER is right, which is why the error is easy to miss.
- 4
Now look at how p.44 gets there. It prints the 10,000 in the DEBIT column, labelled “Debtors”.
Why this step: Two things are wrong at once. A payment out cannot be a debit to cash — it is money leaving. And the other account is Creditors, the supplier being paid, not Debtors, who are customers owing us.
Most people slip here: These are different mistakes. One is the side; the other is the account name. Confusing debtors with creditors reverses who owes whom.
- 5
Check the book against itself. It prints “Total Debit 130,000” — which is 100,000 + 30,000, and excludes the 10,000. And “Total Credit 55,000” — which is 40,000 + 5,000 + 10,000, and includes it.
Why this step: So the totals are computed as though the 10,000 were a credit, while the table draws it as a debit. The page disagrees with its own footing, which is how you can be certain the layout is the error and not the totals.
Once every transaction is posted, p.45 says what the balanced accounts now show:
Assets reflect current resources
Cash 75,000 · Equipment 40,000 · Inventory 25,000 — what Noor Trading has on 31 January.
Liabilities reflect remaining obligations
Creditors 15,000 — the 25,000 bought on credit, less the 10,000 paid.
Revenues and expenses show the period’s result
Sales 30,000 against rent 5,000 — the trading story of the month.
Capital reflects the owner’s investment
Capital 100,000 — what she put in, before any profit is added.
And p.45 marks the change of gear in the course explicitly: “Notice how different this is from Unit 1: we are no longer explaining why the double-entry system exists — we are now applying the system.” That is a fair description of everything from here to the end of the book.
Mark each statement ○ if it is true or × if it is false. Decide before you press.
The journal and the ledger contain different information.
A journal entry is complete once the debit and credit amounts are equal.
Paying a supplier is recorded as a credit to the Cash account.
A credit balance on the Creditors account means the business has overpaid a supplier.
If a printed model answer disagrees with your own posting, the printed answer is always right.
Noor Trading’s cash balance at the end of January is 75,000 on the debit side.
Match each description with the choice that fits it.
Records transactions in the order they happened.
Gathers every entry that touched one account.
Answers “how much cash do we have?” in one place.
Answers “what did we do on 15 January?” in one place.
Exam-style — post four transactions and balance the cash account
A business: (i) receives 60,000 capital from its owner in cash; (ii) buys goods on credit for 20,000; (iii) sells goods for 14,000 cash; (iv) pays 8,000 to its supplier.
Write the four journal entries, then post and balance the Cash and Creditors accounts.
One of you reads out a journal entry — Dr Rent 5,000 · Cr Cash 5,000 — and the other says which two T-accounts it lands in, on which side of each, and what the narration should say. Then reverse it: one of you gives a T-account row, and the other reconstructs the whole entry. The second direction is much harder, and it is exactly what an examiner is testing when they hand you an incomplete ledger.
How the real paper is built
The ministry sets half multiple choice and half written answer in every subject. The two halves are not the same skill. In the multiple-choice half you have to spot the wrong options quickly — and the wrong options are built out of the mistakes students really make. In the written half nobody gives you the answer to recognise; you have to produce it, in your own words, with a reason.
Practise both. Being good at one half and weak at the other costs you exactly half the paper.
In a New Context
A classmate shows you a Cash T-account with 90,000 of debits, 40,000 of credits, and a balance written as 50,000 Cr. One of the debit rows is labelled “Creditors 15,000” and describes a payment made to a supplier.
Identify two separate errors, say what the correct balance and side should be after fixing them, and explain which one the classmate could have caught without knowing anything about the transactions.
Lesson Question — Answered
If the journal already records every transaction, why is a ledger needed at all?
Because the journal holds the information in the wrong shape for almost every question anybody asks of it. It is a diary: perfect for what happened on 15 January? and useless for how much cash do we have? — which would mean reading the entire year and adding as you go, for every account, every time. The ledger holds exactly the same entries, gathered by account, so a balance is a total rather than a search. p.43 puts it plainly: without the ledger, transactions remain scattered.
The ledger adds no new facts. What it adds is access — and every figure in the financial statements is an account balance, so the statements cannot be prepared without it.
And this lesson added one more thing that no definition would have taught: posting Noor Trading yourself produced the book’s own balances by a route the book’s own page does not show. A right answer does not certify the working that produced it — which is why you post from the journal, and not from a layout you copied.
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