Which of the following errors is not detected by Trial Balance?
- (a)A credit purchase of ₹1,000 from Mr. Singh is credited wrongly to the account of Mr. Akash
- (b)A credit purchase of ₹20,000 from Mr. Sandhu is recorded in the day book as ₹2,000
- (c)Conversion of a temporary shed into a permanent building is recorded as repairs and maintenance expense
- (d)Error in posting from the book of subsidiary record to the ledger
Correct — D, (d) Error in posting from the book of subsidiary record to the ledger. The Commission's key takes this option, and the principle behind it is the one worth carrying away: a trial balance proves arithmetical equality and nothing else. The ask is negative, and the booklet prints the word not in bold italic in the stem, so read it as which error survives the trial balance rather than which error the trial balance exposes. What a trial balance actually does is add the debit balances in the ledger, add the credit balances, and compare the two totals. If they agree, every entry that reached the ledger carried an equal debit and credit somewhere. That is all it establishes. It cannot say whether the debit went into the right account, whether the amount matched the invoice, or whether an item belonged in the profit and loss account rather than in the balance sheet. Posting is the step at which a figure already written into a book of subsidiary record — the purchases day book, the sales day book, the returns books, the cash book — is carried into the ledger. An error made at that step can take several forms, and the forms are not alike. If the figure is carried into the wrong account while keeping the correct side and the correct amount, so that the credit that should have reached one supplier reaches another instead, the two column totals are untouched and the trial balance agrees. Errors of that shape are precisely what the trial balance cannot reach, which is the sense in which the keyed option answers the ask. The distinction to hold on to is the one between a one-sided error and a two-sided error. If only one of the two accounts involved is affected — an amount posted to one account and not the other, or posted on the wrong side of one account — the totals fall out of step and the difference is thrown up. If both accounts move together in the wrong direction, or move by an equal wrong amount, or move into the wrong pair of accounts, nothing falls out of step. When a trial balance does disagree, the difference is parked in a suspense account until the one-sided error is found; a two-sided error never reaches the suspense account, because it never disturbed the totals in the first place. That is why the four families that a candidate must be able to name — errors of complete omission, errors of principle, compensating errors and those errors of commission in which the right amount goes to the wrong account on the right side — are described in every textbook as errors not disclosed by the trial balance. The item's option set draws from that territory, and the key takes option (d).
- (a)A credit purchase of ₹1,000 from Mr. Singh is credited wrongly to the account of Mr. Akash — The Commission's key does not take this option. What it describes is an error of commission of the wrong-account kind: the purchase should have been debited to Purchases and credited to Mr. Singh, and the credit has gone to Mr. Akash instead. Both parties are creditors, the side is right and the amount is right, so the sum of the credit balances in the ledger has not changed. An error of this shape is caught not by the trial balance but by the ledger itself — Mr. Singh's account will not agree with the statement he sends, and Mr. Akash will dispute a credit he never earned. The correcting entry needs no suspense account: debit Mr. Akash and credit Mr. Singh with ₹1,000, and no other account is disturbed. That test — can I correct it without touching a suspense account? — is the fastest way to tell a two-sided error from a one-sided one.
- (b)A credit purchase of ₹20,000 from Mr. Sandhu is recorded in the day book as ₹2,000 — The Commission's key does not take this option either. This is an error of original entry, sometimes called an error of recording: the mistake is made before posting, in the book of original entry, and the ledger then faithfully reproduces it. Purchases will be understated by ₹18,000 and Mr. Sandhu will be credited with ₹18,000 too little, so both sides move together and the ledger stays internally consistent. Notice where the wrong figure was written — in the day book, not in the ledger — which is what separates this option from the keyed one, where the error is made at the posting step. The correction is a single journal entry debiting Purchases and crediting Mr. Sandhu with the shortfall of ₹18,000.
- (c)Conversion of a temporary shed into a permanent building is recorded as repairs and maintenance expense — The Commission's key does not take this option. What it describes is an error of principle: converting a temporary shed into a permanent building improves the asset and extends its life, so the spending is capital expenditure and belongs in the Building account, while it has been charged to Repairs and Maintenance and written off against this year's profit. The consequence is that profit and total assets are both understated, and depreciation for every future year is understated too. But the entry itself is a correct debit and an equal credit — the wrong account was debited, not a wrong amount — so the two columns of the ledger still balance. This option is the paper's reminder that the capital-versus-revenue distinction, tested elsewhere in this accountancy block, is also an error-rectification topic.
A trial balance is a list of the ledger balances at a date, debits in one column and credits in the other, and its only claim is that the two totals agree. That agreement establishes arithmetical accuracy: every transaction that reached the ledger did so with an equal debit and credit, and no balance was mis-added or mis-carried. It establishes nothing about whether the accounts are correct. The errors are conventionally sorted into two groups by that test. Errors not disclosed by the trial balance are those in which the debit and the credit still match: complete omission of a transaction from the books; errors of principle, where capital and revenue items are interchanged; compensating errors, where two mistakes of equal amount cancel in opposite directions; errors of original entry, where a wrong amount is written into the book of first record and posted consistently to both accounts; errors of duplication; and those errors of commission in which the correct amount reaches the wrong account on the correct side. Errors disclosed by the trial balance are the one-sided ones: posting to only one of the two accounts, posting a wrong amount to one account, posting to the wrong side of one account, wrong casting of a subsidiary book, wrong balancing of a ledger account, and errors in carrying forward or in drawing up the trial balance itself. The practical machinery follows from the split. A disagreement is held in a suspense account until the one-sided error is traced, and every rectification entry that involves a suspense account is by definition correcting an error the trial balance had exposed; two-sided errors are put right by an ordinary journal entry between the two accounts concerned, with the suspense account never appearing.
Error rectification is a staple of the EPFO accountancy block because it tests whether a candidate understands what a control actually controls. An officer who reads an establishment's books needs to know that a balanced trial balance is not a clean bill of health — the books can balance perfectly while a capital improvement has been written off as a repair, an invoice has been recorded at a tenth of its value, or a supplier has been credited in another supplier's name. The item is printed with its negation in bold italic, which is this booklet's convention on the seventeen questions that ask a negative, and the four options are drawn from four different points on the map of errors: a wrong-account error, a wrong-amount-at-the-recording-stage error, a capital-versus-revenue error, and an error at the posting step, which is the one the key takes. Working through all four is worth far more than the mark, because between them they cover most of what an examiner can set on the topic.
- A trial balance tests only the arithmetical equality of debit and credit balances; it cannot test whether an amount reached the right account or belonged to the right class.
- Errors that leave the two totals equal — complete omission, errors of principle, compensating errors, errors of original entry, duplication, and wrong-account errors of commission — pass through the trial balance untouched.
- Errors that disturb one side only — posting one side alone, a wrong amount to one account, a posting on the wrong side, wrong casting of a subsidiary book, wrong balancing, or a mistake in carrying forward — make the totals disagree.
- A difference in the trial balance is carried to a suspense account until traced; a rectification entry that needs no suspense account is correcting an error the trial balance never showed.
- An error of principle interchanges capital and revenue items — charging a permanent building to repairs is the classic example — and it misstates both the profit and the asset while leaving the books in balance.
- An error of original entry is made in the book of first record and is then posted consistently to both accounts, so the ledger is internally consistent and wrong by the same amount on both sides.
- Reading the ask as which error the trial balance catches; the booklet prints the negation in bold italic, and the sense of the item turns on it
- Assuming a balanced trial balance means correct books — it means equal columns, which is a much weaker statement
- Confusing an error made at the recording stage, in a book of original entry, with an error made at the posting stage, when a figure is carried into the ledger; the option set here contains one of each
- Forgetting that a wrong-account error keeps the side and the amount right, which is exactly why the totals do not move
- Using a suspense account to rectify a two-sided error; if both accounts were disturbed equally, the suspense account has no part in the correction
This theme reaches EPFO papers as a single-sentence classification item, usually negative, with each option describing a different transaction that has gone wrong. The examiner rarely asks for the name of the error class outright; the work is to read a described mistake, decide whether the debit and the credit still match, and answer accordingly. Practise by writing out the entry that was made and the entry that should have been made for each option — if the two differ only in which account was used, the trial balance was never going to show it.
No directly related past PYQ was found.
- practice — not a real PYQ
The trial balance of a firm does not agree. The difference is most likely to have been caused by
- (a)a purchase invoice omitted altogether from the books
- (b)the purchase of a delivery van debited to the Motor Expenses account
- (c)the sales day book undercast by ₹500
- (d)a sale to Mohan recorded in the account of Sohan
Answer(c) the sales day book undercast by ₹500 — the total of the sales day book is posted to the credit of the Sales account alone, so an undercast understates that one credit and the two columns of the trial balance fall out of step by ₹500. The other three leave equal debits and credits: a complete omission enters neither account, a capital purchase charged to an expense account is an error of principle, and recording a sale in the wrong customer's account is a wrong-account error of commission.
- practice — not a real PYQ
Which one of the following rectifications would require the use of a suspense account?
- (a)Goods returned by a customer recorded in the purchases returns book
- (b)Wages paid for the installation of a machine debited to the Wages account
- (c)A credit sale of ₹4,500 posted to the customer's account as ₹4,500 on the debit side and to the Sales account as ₹5,400
- (d)A credit purchase omitted entirely from the books
Answer(c) A credit sale of ₹4,500 posted to the customer's account as ₹4,500 on the debit side and to the Sales account as ₹5,400 — only here do the two sides differ, by ₹900, so the trial balance disagrees and the difference sits in a suspense account until the entry is put right. The other three are two-sided errors: a wrong book used for a return, an error of principle on installation wages, and a complete omission all leave equal debits and credits.