Journals, Ledgers, and Year-End Account Balancing

Learning objectives

• Explain why journals and ledgers are used, and how they support accurate double-entry records.
• Prepare journal entries from transaction narratives, applying correct debit and credit rules.
• Post journal entries to ledger (T-) accounts and maintain clear account movements.
• Balance ledger accounts at period end, using balance c/d and balance b/d correctly.
• Record common period-end adjustments (accruals, prepayments, depreciation) so income and expenses fall in the correct period.
• Identify and correct common recording and posting errors without breaking double entry.

Overview & key concepts

Financial accounting relies on a disciplined record of transactions so that income, expenses, assets, liabilities, and equity can be reported consistently. Two core tools make this possible:

• Journals: transactions are first recorded in date order using double entry (total debits = total credits).
• Ledgers: entries are grouped by account so movements and balances can be reviewed and financial statements prepared.

A good system links each transaction to: (1) the business event, (2) the accounts affected, and (3) the impact on the accounting equation.

Assets = Liabilities + Equity

Journals

A journal is the first formal record of a transaction. A typical journal entry shows:

• date
• accounts debited and credited
• amounts
• a short narrative explaining the entry

Example (equipment bought and paid immediately from the bank):

• Debit Equipment (asset increases)
• Credit Bank (asset decreases)

Journals provide a clear audit trail: what was recorded, when, and why.

Ledgers

A ledger is a set of accounts used to accumulate transactions by type (e.g., Bank, Trade receivables, Sales revenue, Rent expense). The general ledger contains all accounts required to prepare financial statements.

Ledger accounts allow you to:

• track amounts owed by customers and owed to suppliers
• monitor cash and bank movements
• summarise income and expenses for the period

Posting

Posting transfers each line of a journal entry into the relevant ledger accounts:

• adebitin the journal becomes adebitin the ledger account
• acreditin the journal becomes acreditin the ledger account

For exam technique, label each ledger entry with the counterparty account (the other account in the journal entry). This makes it easier to cross-check postings.

Balancing accounts

At the end of a period, ledger accounts are balanced to determine the closing position.

Exam layout rule (balance-off method)

• Add up each side.
• Putbalance c/don theshorter sideso that debit total = credit total.
• Bring downbalance b/don theopposite sideat the start of the next period.
• Balance c/d is thebalancing figureneeded to make the two totals equal.

Reminder: the side where balance c/d appears depends on which side is shorter.

Year-end adjustments

Period-end adjustments ensure that income and expenses are reported in the correct accounting period and that assets and liabilities are not misstated. Common adjustments include:

• Accruals(expenses incurred but not yet paid)
• Prepayments(paid in advance for future periods)
• Depreciation(allocation of an asset’s cost over its useful life)
• Irrecoverable debts / allowance for doubtful debts(covered later)
• Deferred income(covered later)

Example (insurance prepayment): if a payment includes an amount relating to the next period, that future portion is recorded as a prepayment (asset), reducing the current period expense.

Importance of narratives

A short narrative supports the entry by stating the business reason for it. This is especially useful for adjustments and corrections.

Core theory and frameworks

Double-entry and the accounting equation

Every transaction affects at least two accounts so that the accounting equation remains in balance:

Assets = Liabilities + Equity

A practical method is:

1. Identify what the businessreceivesand what itgives.
2. Name theaccountsinvolved.
3. Classify each account asasset, liability, equity, income, or expense.
4. Decide whether each accountincreases or decreases, then apply the normal balance rule to choose debit or credit.

Normal balances (a quick way to remember debits and credits)

Most accounts have a “natural” side where increases usually sit:

• assets and expenses usually build up on thedebitside
• liabilities, equity, and income usually build up on thecreditside

When an account increases, you normally post it on its natural side; when it decreases, you post it on the opposite side.

Cash vs credit transactions

• Acash/bank saleincreases Bank (or Cash) immediately.
• Acredit salecreates a receivable first; cash is recorded later when received.
• Acredit purchasecreates a payable first; payment reduces that payable later.

Operating expenses

Operating expenses (rent, utilities, salaries) are recognised in the period to which they relate:

• unpaid at period end → recognise anaccrual(liability)
• paid in advance → recognise aprepayment(asset)

Inventory systems and cost of sales (high level)

Goods purchased for resale are accounted for using either:

• Perpetual system: inventory is updated continuously as purchases and sales occur.
• Periodic system: purchases are accumulated during the period (often in a Purchases account) and cost of sales is determined at period end using opening inventory and closing inventory.

In exam-style questions, you are usually told which system is used, or you are given opening and closing inventory so that cost of sales can be calculated.

Period-end depreciation

Depreciation is recorded with:

• Debit Depreciation expense
• Credit Accumulated depreciation (a contra-asset)

The asset cost remains unchanged. Net book value is:

Net book value = Cost − Accumulated depreciation

Error correction (exam-focused, concise)

Common error patterns and typical fixes:

• Omission: record the correct entry.
• Wrong account: reclassify by debiting the correct account and crediting the incorrect account.
• Wrong side: reverse the incorrect posting and record it on the correct side.
• Transposition/casting error: adjust by the difference once the correct figure is known.

Mini-example (wrong account): rent £500 posted to utilities.
Debit Rent expense £500
Credit Utilities expense £500

Worked example

Narrative scenario

Greenfield Supplies operates in the UK. During March, the business completed these transactions:

1. Introduced cash capital of £12,000 into the business bank account.
2. Purchased equipment for £3,600 by bank transfer.
3. Bought goods on credit for £2,200.
4. Sold goods on credit for £3,100.
5. Paid £800 to a supplier by bank transfer.
6. Paid rent of £500 by bank transfer.
7. Received a loan of £5,000 from a bank.
8. Paid salaries of £1,200 in cash.
9. Received £1,500 from a customer for a previous credit sale.
10. Paid £300 for utilities by bank transfer.
11. Recorded depreciation of £400 on equipment.
12. Made a period-end adjustment for £200 of accrued expenses.

Required

• Prepare journal entries for each transaction.
• Post the entries to the relevant ledger accounts.
• Balance the ledger accounts at the end of March.
• Record period-end adjustments for accrued expenses and depreciation.
• Interpret the financial position as at 31 March.

Solution

Journal entries

1) Capital introduced into bank
Debit Bank £12,000
Credit Capital £12,000
Narrative: Owner introduced capital into business bank account.

2) Equipment purchased by bank transfer
Debit Equipment (cost) £3,600
Credit Bank £3,600
Narrative: Equipment purchased and paid by bank transfer.

3) Goods purchased on credit
Debit Inventory £2,200
Credit Trade payables £2,200
Narrative: Goods purchased on credit.

4) Goods sold on credit
Debit Trade receivables £3,100
Credit Sales revenue £3,100
Narrative: Credit sale to customer.

5) Part payment to supplier by bank
Debit Trade payables £800
Credit Bank £800
Narrative: Part payment made to supplier.

6) Rent paid by bank
Debit Rent expense £500
Credit Bank £500
Narrative: Rent paid by bank transfer.

7) Loan received into bank
Debit Bank £5,000
Credit Loan payable £5,000
Narrative: Loan proceeds received from bank.

8) Salaries paid in cash
(a) Cash withdrawn from bank for wages
Debit Cash £1,200
Credit Bank £1,200
Narrative: Cash withdrawn from bank to fund wage payment.

(b) Salaries paid in cash
Debit Salaries expense £1,200
Credit Cash £1,200
Narrative: Salaries paid in cash.

9) Receipt from customer (settling a receivable)
Debit Bank £1,500
Credit Trade receivables £1,500
Narrative: Receipt from customer to settle outstanding receivable.

10) Utilities paid by bank
Debit Utilities expense £300
Credit Bank £300
Narrative: Utilities paid by bank transfer.

11) Depreciation for the period
Debit Depreciation expense £400
Credit Accumulated depreciation – equipment £400
Narrative: Depreciation recorded for March.

12) Accrued expense at period end
Debit Utilities expense £200
Credit Accruals (accrued liabilities) £200
Narrative: Recognise an expense relating to March that has not yet been paid; set up a liability for the amount owing.

Ledger accounts (T-accounts with balancing shown)

Bank (balanced off correctly)

Balance b/d (1 April): 12,100 (debit)

Cash

Balance b/d (1 April): 0

Equipment (cost)

Balance b/d (1 April): 3,600 (debit)

Accumulated depreciation – equipment

Balance b/d (1 April): 400 (credit)

Inventory

Balance b/d (1 April): 2,200 (debit)

Trade payables

Balance b/d (1 April): 1,400 (credit)

Trade receivables (balanced off correctly)

Balance b/d (1 April): 1,600 (debit)

Sales revenue

Balance b/d (1 April): 3,100 (credit)
Note: Income and expense accounts are later closed to profit for the period. Carrying them forward here is only to demonstrate balancing technique before that closing step is introduced.

Rent expense

Balance b/d (1 April): 500 (debit)

Utilities expense

Balance b/d (1 April): 500 (debit)

Salaries expense

Balance b/d (1 April): 1,200 (debit)

Depreciation expense

Balance b/d (1 April): 400 (debit)

Accruals (accrued liabilities)

Balance b/d (1 April): 200 (credit)

Loan payable

Balance b/d (1 April): 5,000 (credit)

Capital

Balance b/d (1 April): 12,000 (credit)

Key balances at 31 March (selected)

• Bank (asset): £12,100
• Trade receivables (asset): £1,600
• Inventory (asset): £2,200
• Equipment at cost (asset): £3,600
• Accumulated depreciation (contra-asset): £400

Net book value = Cost − Accumulated depreciation
Net book value = £3,600 − £400 = £3,200

• Trade payables (liability): £1,400
• Accruals (accrued liabilities) (liability): £200
• Loan payable (liability): £5,000
• Capital (equity): £12,000

Interpretation of the financial position (31 March)

Greenfield Supplies ends March with £12,100 in the bank and no cash on hand, after funding a cash wage payment via a bank withdrawal. Working capital includes trade receivables of £1,600 and trade payables of £1,400, reflecting credit trading with a modest net receivable position.

Non-current assets include equipment at cost £3,600 with accumulated depreciation £400, giving a net book value of £3,200. The business also has a loan payable of £5,000, which increases funding but adds repayment and interest commitments in future periods.

No cost of sales is calculated because the scenario does not provide information on inventory issued/sold or closing inventory.

Common pitfalls and misunderstandings

• Confusing debit and credit rules: classify the account type first, then decide increase/decrease.
• Mixing up bank and cash: “paid in cash” affects Cash; if cash came from the bank, record the withdrawal.
• Using a generic “accrued expense” account: debit the specific expense heading and credit Accruals (liability).
• Crediting the asset cost for depreciation: use accumulated depreciation.
• Putting balance c/d on the wrong side: it must go on the shorter side to make totals equal.
• Forgetting nominal account closure: income and expenses are later transferred to profit for the period.

Summary

Journals record transactions in date order using double entry, while ledgers group those entries by account to build running balances. Balancing off ledger accounts identifies closing positions and ensures continuity into the next period. Period-end adjustments such as accruals and depreciation ensure expenses are recognised in the correct period and that assets and liabilities are not misstated.

FAQ

Why does double entry matter?

Double entry forces every transaction to have two equal sides, which helps maintain the accounting equation and supports internal checks through ledger balancing.

How do I choose which account to debit?

Identify the accounts, classify them, decide whether each increases or decreases, then apply the normal balance rule to select debit or credit.

Why record an accrued expense at period end?

Because the expense relates to the current period even if paid later. The adjustment recognises the expense now and sets up a liability for the amount owing.

Why keep accumulated depreciation separate?

Separating cost and accumulated depreciation makes it easier to track original cost, total depreciation to date, and net book value.

Glossary

Journal
A day-by-day record where transactions are first entered using double entry, showing debits, credits, amounts, and a brief narrative.

Ledger
A collection of accounts where transactions are accumulated by account type to produce account balances.

Posting
Transferring each debit and credit from the journal to the relevant ledger accounts.

Debit
An entry on the left side of an account. It is commonly used for increases in assets and expenses, and for decreases in liabilities, equity, and income.

Credit
An entry on the right side of an account. It is commonly used for increases in liabilities, equity, and income, and for decreases in assets and expenses.

Balance c/d (carried down)
A closing figure inserted on the shorter side of a T-account so that debit total equals credit total.

Balance b/d (brought down)
The opening balance in the next period, brought down on the opposite side from the balance c/d.

Accrual
A period-end adjustment that records an expense (or income) in the period it relates to when the cash movement happens later.

Accruals (accrued liabilities)
Amounts owed at the period end for expenses already recognised.

Prepayment
A payment made in advance where the benefit relates to a future period; the unexpired amount is recorded as an asset.

Depreciation
A periodic charge that spreads the cost of a tangible non-current asset over its useful life.

Accumulated depreciation
A contra-asset account that accumulates depreciation over time and is offset against the asset’s cost to determine net book value.

General ledger
The main set of accounts containing assets, liabilities, equity, income, and expenses used to prepare financial statements.

Nominal account
An income or expense account used to measure performance for a period, later transferred to profit for that period.