Key Terms
Key Terms: Trial Balance
Learn the key terms for the Trial Balance and inventory, with a memory hook for each and how it is tested, so you can arrange balances accurately and link them to the Financial Statements.
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Trial Balance: Meaning and Function
- A Trial Balance is a list of all the debit balances and credit balances extracted from the ledger accounts, the Cash Book and the Petty Cash Book on a particular date. It is not part of the double-entry system itself but a checking statement prepared after all transactions are recorded and balanced off.
- Four main functions: (1) to check the arithmetical accuracy of the double entry, i.e. total debits must equal total credits; (2) to serve as the basis for preparing the Income Statement and Statement of Financial Position; (3) to summarise all balances in one statement for easy reference; (4) to help detect certain types of errors.
- Memory hook: the Malay word "Duga" means to test or check, so a Trial Balance is a test of whether Debit = Credit. How it is tested: structured questions often give a jumbled list of balances and ask you to place each in the correct column and prove both totals agree.
Debit Balances versus Credit Balances
- Debit balances (placed in the debit column of the Trial Balance): all assets (cash, bank, vehicles, furniture), expenses (salaries, rent, rates), Purchases, Sales Returns (returns inwards) and Drawings. Credit balances (credit column): Capital, all liabilities (payables, loans), revenues (commission received, interest received), Sales and Purchases Returns (returns outwards).
- Memory hook "A-B-B-A to Debit": Assets, Belanja (Expenses), Belian (Purchases), Ambilan (Drawings) carry debit balances; the rest (Capital, Liabilities, Revenue, Sales) carry credit balances. Also remember: Sales Returns sit opposite Sales, and Purchases Returns sit opposite Purchases.
- How it is tested: the commonest mistake is placing a balance in the wrong column, e.g. putting Drawings on the credit side or Purchases Returns on the debit side. A single mis-columned balance makes the two totals disagree, so check the classification of every item carefully.
Sources of Balances and the Accounting Cycle
- Balances for the Trial Balance are transferred from three sources: the Cash Book (giving cash and bank balances), the Petty Cash Book (giving the petty cash balance after reimbursement) and the ledger accounts (giving all other balances). This can be done manually or with ICT applications such as a spreadsheet.
- The Trial Balance sits at a fixed point in the Accounting Cycle: Source Document → Journal → Ledger → Trial Balance → Financial Statements. Therefore it can only be prepared AFTER each account is balanced off and its balance found, and BEFORE the final statements are prepared.
- How it is tested: a "full cycle" question starts from source documents and asks you to journalise, post to the ledger, balance the accounts, then prepare the Trial Balance. The heading must be complete: the business name and "Trial Balance as at [date]".
Errors That Do Not Affect the Trial Balance
- A Trial Balance can still balance even when errors exist, because the double entry remains complete (debit equals credit). Six such error types must be memorised, because a balanced Trial Balance is NOT proof that no errors were made.
- (1) Error of omission: a transaction is not recorded at all; (2) Error of commission: the correct amount is entered in the wrong account of the same class (e.g. Ali's payment posted to Abu's account); (3) Error of principle: the entry goes to the wrong class of account (e.g. purchase of an asset recorded as an expense).
- (4) Error of original entry: a wrong amount recorded on both sides (e.g. RM540 entered as RM450); (5) Complete reversal of entries: the debit and credit are fully swapped; (6) Compensating errors: two or more errors whose amounts cancel each other out.
- Memory hook "OMISSION-COMMISSION-PRINCIPLE, ORIGINAL-REVERSAL-COMPENSATING". How it is tested: structured questions give an error situation and ask you to name its type and explain why the Trial Balance still balances, or to distinguish it from errors that DO affect the Trial Balance.
Inventory and Inventory Systems
- Inventory means the goods bought or produced for resale in the normal course of the business. Opening inventory is the balance brought forward from the previous period, while closing inventory is the unsold goods remaining at the end of the accounting period.
- The periodic inventory system determines the inventory value only periodically through a physical count at the end of the period; Purchases and Sales accounts are used throughout the year. The perpetual inventory system updates the inventory record every time goods come in or go out, usually through an inventory card, so the inventory balance is always known.
- Memory hook: "periodic = counted now and then", "perpetual = counted all the time". How it is tested: questions ask you to distinguish the two systems, or to explain why the closing inventory value must be determined before the Income Statement can be prepared.
Closing Inventory and Its Link to the Financial Statements
- Under the periodic inventory system, closing inventory does NOT appear in the Trial Balance because it is only known after the physical count at the end of the period. It is recorded through the general journal (debit the Inventory account, credit the Income Statement) and posted to the ledger as an adjusting entry.
- An inventory card records the quantity, unit cost and total cost of every receipt, issue and balance. The value on the final balance line of the inventory card is the closing inventory value carried to the Financial Statements. Inventory is valued at the lower of cost or net realisable value.
- The link (periodic system): in the Income Statement, closing inventory is DEDUCTED from the cost of goods available for sale to give the cost of sales, so it lowers cost of sales and raises gross profit. In the Statement of Financial Position, the SAME closing inventory is shown as a current asset.
- Memory hook: one closing-inventory figure appears TWICE, once as a deduction in the Income Statement and once as a current asset in the Statement of Financial Position. How it is tested: questions frequently supply a closing inventory adjustment and expect you to show both effects with the same figure.
| Debit Balances (Dr) | Credit Balances (Cr) |
|---|---|
| Assets (cash, bank, furniture, vehicles) | Capital |
| Expenses (salaries, rent, rates) | Liabilities (payables, loans) |
| Purchases and Sales Returns | Sales and Revenue (commission received) |
| Drawings | Purchases Returns |
Assets, Expenses, Purchases and Drawings carry debit balances; Capital, Liabilities, Revenue, Sales and Purchases Returns carry credit balances.
| Item | Debit (RM) | Credit (RM) |
|---|---|---|
| Capital | 20,000 | |
| Cash | 5,000 | |
| Opening inventory | 3,000 | |
| Purchases | 12,000 | |
| Sales | 10,000 | |
| Furniture | 8,000 | |
| Trade receivables | 4,000 | |
| Trade payables | 2,000 | |
| Total | 32,000 | 32,000 |
Under the periodic inventory system, closing inventory is NOT included in the Trial Balance; only opening inventory appears. Closing inventory is recorded later as an adjustment.
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