Double entry, reconciliation, errors and recording models
Concepts and financial recording
What the domain tests
This domain examines whether you can name the concept behind a treatment, apply it to a year-end adjustment, and distinguish a supplied classroom model from the actual reporting framework. Typical questions ask you to identify the concept being breached or explain why an item is treated as it is.
Core concepts and conventions
- Business entity: the owner's private transactions are excluded from the business accounts.
- Going concern: accounts assume continued operation, so assets are not stated at break-up values.
- Accruals (matching): income and expenses belong to the period they relate to, not the period cash moves.
- Consistency: the same method is used each year unless a change is justified and disclosed.
- Prudence: exercise caution in estimates under uncertainty without deliberately overstating liabilities or understating assets. The recognition criteria still matter.
- Realisation: revenue recognition follows the supplied earning or performance requirements, rather than simply the date cash arrives or an invoice is printed.
- Materiality: an item is adjusted if its omission or misstatement could affect a user's decision.
- Historical cost: assets are recorded at transaction cost, then depreciated or impaired.
Regulatory framework
Accounting requirements depend on the entity, jurisdiction and specified framework. Begin by identifying the applicable version, entity type and purpose of the statements, then distinguish a mandatory recognition rule from a chosen accounting estimate. International concepts can support comparison without making one country's chart of accounts or tax code binding elsewhere. For a supplied classroom exercise, follow its stated conventions consistently and explain assumptions. A standard's title does not mean every possible asset is measured at historical cost or every event is recognized immediately. Changes in policy, changes in estimates and correction of errors need different analysis under the applicable framework. These chapters teach common financial-recording mechanisms, not a complete current statutory-compliance manual.
Worked example
A trader's year ends on 31 December 2024. December electricity of 180,000 FCFA is invoiced but unpaid. Insurance of 240,000 FCFA was paid on 1 October 2024 for twelve months.
- Electricity: Dr Electricity expense 180,000; Cr Accrued expenses 180,000. Matching places the cost in 2024 although cash moves in 2025.
- Insurance: only 3/12, or 60,000 FCFA, relates to 2024; 180,000 is prepaid. Dr Prepaid insurance 180,000; Cr Insurance expense 180,000, leaving a 2024 charge of 60,000.
Traps
Prudence is not deliberate understatement; it must be rational. Drawings are not an expense. Consistency cannot defend an error, because a required change or a correction must be considered under the applicable reporting framework. An accrual is not the same as a prepayment: one is a liability, the other an asset.
What the domain tests
This domain tests whether you can record transactions from source documents into the books of prime entry, post them to the ledger, and explain the dual aspect. Exam tasks include journal entries, trade and cash discount calculations, and correcting postings.
Rules and records
Every transaction has two effects: debits increase assets and expenses, credits increase liabilities, income and capital. The reverse reduces them.
The books of prime entry are:
- Sales day book: credit sales invoices.
- Purchases day book: credit purchase invoices.
- Sales returns day book: credit notes issued to customers.
- Purchases returns day book: credit notes received from suppliers.
- Cash book: cash and bank receipts and payments, often with discount columns.
- Petty cash book: small payments, usually under the imprest system.
- Journal proper: opening entries, corrections, depreciation, disposals and other non-routine items.
Source documents include invoices, credit notes, debit notes, receipts, petty cash vouchers and bank statements. In the separate-discount-account classroom model used here, trade discount reduces the recorded invoice amount and cash discount is recognized on settlement. Actual revenue, purchase-cost and early-settlement accounting depends on the specified framework.
Worked example
Goods with a list price of 500,000 FCFA are sold on credit at a 10% trade discount. The customer later returns goods with a list price of 50,000 FCFA.
- Sale: net invoice value is 450,000. Dr Receivables 450,000; Cr Sales 450,000. The sales day book records 450,000.
- Return: trade discount still applies, so the credit note is 45,000. Dr Sales returns 45,000; Cr Receivables 45,000. The customer now owes 405,000. The trade discount never appears in a ledger account.
Traps
Do not post an item to the day book and then post it twice to the ledger: the day book is a list, not a second ledger. A credit note from a supplier goes in purchases returns, not sales returns. A cash-to-bank transfer is recorded on opposite sides of the relevant cash-book columns; a customer/supplier set-off is a different use of the term contra. Identify which transaction is intended. The discount columns in the cash book are memorandum columns and are not part of the double entry until posted.
Errors, reconciliation and financial controls
What the domain tests
You must extract a trial balance, classify errors by whether they affect its agreement, journalise corrections and clear a suspense account. Questions often supply a difference and a list of discovered errors.
Core rules
A trial balance lists debit and credit balances at a date. It proves only that total debits equal total credits, not that the ledger is correct.
Errors that do not affect trial balance agreement:
- error of omission, where a transaction is completely left out;
- error of commission, where the right class of account but wrong account is used;
- error of principle, such as capital expenditure posted to repairs;
- error of original entry, where a wrong amount is posted consistently to both accounts;
- error of reversal, where the correct accounts are used but the sides are reversed;
- compensating errors, which cancel out.
Errors that do affect agreement: one-sided postings, partial omission, different amounts on the two sides, and addition errors in one account.
A suspense account is opened for the difference. Each correction is journalised and the suspense account is cleared when every error is found.
Worked example
The trial balance credit column exceeds the debit column by 36,000 FCFA, so a suspense account with a debit balance of 36,000 is opened. Three errors are found:
- The payables entry for a 30,000 credit purchase was correct, but only 3,000 was debited to Purchases. Purchases alone is understated by 27,000: Dr Purchases 27,000; Cr Suspense 27,000.
- The customer account was correctly credited for a sales return of 18,000, but the debit to Sales returns was omitted: Dr Sales returns 18,000; Cr Suspense 18,000.
- Rent paid of 45,000 was posted to the rent account as 54,000. Rent is overstated by 9,000: Dr Suspense 9,000; Cr Rent 9,000. Suspense account: opening debit 36,000, credits 27,000 and 18,000, debit 9,000. The account clears exactly.
Traps
An error of principle never affects trial balance agreement, so do not look for it as the cause of a difference. Do not correct errors by altering the original source document. A suspense account is temporary, not a real asset or liability. If a difference remains, investigate and document unresolved errors rather than inventing an asset or liability to force agreement. Any real reporting treatment depends on the facts, materiality and applicable requirements.
What the domain tests
This domain tests reconciliation of the cash book bank balance with the bank statement, and the preparation of receivables and payables control accounts. You must distinguish timing differences from errors and know which items enter the adjusted cash book.
Bank reconciliation rules
Items appearing in the bank statement but not the cash book are entered in the adjusted cash book: bank charges, interest, standing orders, direct debits, dishonoured cheques, and dividends or transfers credited by the bank. Items in the cash book but not yet on the statement are timing differences: unpresented cheques and uncredited deposits. Errors by the trader are corrected in the cash book; errors by the bank are notified to the bank.
The reconciliation is: balance per adjusted cash book + unpresented cheques − uncredited deposits = balance per bank statement.
Control accounts
- Receivables (sales ledger) control: opening debit balance + credit sales − receipts − discount allowed − sales returns − bad debts + interest charged = closing debit balance.
- Payables (purchase ledger) control: opening credit balance + credit purchases − payments − discount received − purchases returns = closing credit balance. Contra entries reduce both control accounts. A credit balance in the receivables ledger is a payable and is shown separately.
Worked example
Cash book bank column shows a debit balance of 500,000 FCFA. The statement shows bank charges of 20,000 and a standing order of 10,000, neither in the cash book. Unpresented cheques total 120,000; deposits not yet credited total 80,000.
- Adjusted cash book: 500,000 − 20,000 − 10,000 = 470,000.
- Bank statement: 470,000 + 120,000 − 80,000 = 510,000. The 10,000 difference between the original cash book and the statement is explained entirely by the two charges and the two timing items.
Traps
Do not put unpresented cheques in the adjusted cash book; they are timing differences. A dishonoured cheque reduces the cash book and is also reversed in the customer's account. Use a consistent signed-balance or clearly labelled overdraft convention throughout the reconciliation. Financial-statement presentation is a separate question. In control accounts, opening balances must be on the correct side, and contra entries affect both controls.