CA Foundation Accounting common mistakes
CA Foundation Accounting · Understand the traps and how to avoid them.
Recording a transaction in the journal without first deciding which two (or more) accounts are affected and whether each is debited or credited, then discovering the entry cannot be balanced.
Candidates rush to write the entry in narration order ('paid rent', 'received cash') instead of applying the dual-aspect rule, so they rely on intuition about 'cash going out' rather than on the debit/credit behaviour of the specific account types involved.
What to do instead
Before writing any journal entry, state in one line the accounts affected and classify each as asset, liability, capital, income or expense. Apply the fixed rules: increases in assets/expenses are debits, increases in liabilities/capital/income are credits. Then write the entry and confirm total debits equal total credits before moving on. Practise this on 20 mixed transactions until the classification step becomes automatic.
Posting journal entries to ledger accounts but mixing up the sides, so a debit in the journal is posted as a credit in the ledger (or an entry is posted twice/omitted).
Candidates treat posting as mechanical copying and lose track of which column is 'Dr' and which is 'Cr' across a two-column ledger, especially when the journal entry has more than two lines or when the account has an opening balance on the opposite side.
What to do instead
Post one journal entry at a time and tick off each line as it is posted. After posting, run a quick cross-check: the total of all debit postings in the period must equal the total of all credit postings. For accounts with opening balances, write the opening balance first with its correct Dr/Cr label before adding new postings.
Preparing a trial balance that agrees and then concluding 'there are no errors in the books'.
Candidates learn that a trial balance proves arithmetical accuracy and over-generalise this into a proof of correctness, forgetting that errors of principle, compensating errors, complete omission of a transaction, and posting to the wrong account of the same class all leave the trial balance in agreement.
What to do instead
Memorise the explicit list of errors that a trial balance does NOT disclose (error of principle, complete omission, compensating errors, wrong account of the same class, posting to the wrong side of the same account twice). When a question says 'the trial balance agrees but...', immediately scan that list. Practise identifying which error type each scenario describes.
Treating a capital expenditure item (e.g. installation charges on machinery, legal fees on purchase of land, wages paid for erecting plant) as revenue expenditure and charging it to profit and loss.
Candidates classify by the name of the payment ('wages', 'repairs', 'legal charges') rather than by the purpose and effect of the payment, so items that are part of the cost of bringing an asset into working condition get expensed.
What to do instead
Apply the test: does the payment create or enhance a long-term benefit, or is it needed to bring the asset to its usable condition? If yes, capitalise. Learn the standard examples: installation and erection costs, freight and insurance on machinery purchase, legal costs of acquiring property, and major improvements. Then check whether the item is a repair that merely maintains (revenue) or restores/improves (capital).
Preparing a bank reconciliation statement by starting from the cash book balance and then adjusting in the wrong direction, or by ignoring cheques deposited but not yet credited.
Candidates memorise adjustment lists without understanding that the BRS is reconciling two different records of the same fact, so they cannot reason out the direction of each adjustment when the starting point changes (cash book vs pass book, debit balance vs overdraft).
What to do instead
Draw a two-column working showing 'balance as per cash book' and 'balance as per pass book' and reason each item physically: a cheque deposited but not credited is already in the cash book but not in the pass book, so it must be added to the pass book side. Redo the same problem starting from the pass book to confirm both arrive at the same answer. Always state the starting point explicitly.
Applying an accounting standard by name ('as per AS 2, inventory is valued at lower of cost or NRV') without computing cost, net realisable value, or the write-down for each item or category.
Candidates learn the standard's headline phrase and stop there, so in a numerical question they value inventory at cost only, forget to compare item-by-item, or omit the write-down from the profit and loss account.
What to do instead
For every inventory question, build a small table: item, cost, estimated selling price, costs to complete and sell, NRV, and lower of the two. Compare item-by-item (not in aggregate) unless the standard permits grouping. Then post the difference between cost and lower value as a write-down through the profit and loss account. Practise at least one multi-item numerical question.
Ignoring the distinction between provisions, contingent liabilities and contingent assets and disclosing all three as liabilities in the balance sheet.
The terms sound similar and candidates treat 'contingent' as a synonym for 'probable', so a possible obligation that is only disclosed gets recorded as a provision, and a contingent asset gets recognised prematurely.
What to do instead
Use the three-level test: present obligation with probable outflow and reliable estimate = provision (recognise); possible obligation or outflow not probable or not measurable = contingent liability (disclose only); possible asset = do not recognise, disclose only if inflow is probable. For each scenario in a question, write the probability word and the accounting treatment next to it before answering.
Preparing the trading and profit and loss account and balance sheet without first passing adjusting entries for outstanding expenses, prepaid expenses, accrued income, depreciation and closing stock.
Candidates treat adjustments as optional extras and try to 'adjust on the face of the statements', which leads to items being shown once in the profit and loss account but omitted from the balance sheet, or vice versa, so the balance sheet does not tally.
What to do instead
Adopt a fixed routine: for every adjustment, write the double entry first (e.g. outstanding wages: debit wages, credit outstanding wages), then carry one leg to the trading/profit and loss account and the other to the balance sheet. Tick each adjustment against both statements. Close by verifying total assets equal total liabilities plus capital after all adjustments.
In a partnership admission or retirement problem, revaluing assets and liabilities and passing the revaluation profit or loss to all partners including the new or retiring partner.
Candidates apply the new profit-sharing ratio mechanically to every item, forgetting that revaluation gains and losses before admission or retirement belong to the old partners only, and that goodwill must be adjusted through the partners' capital accounts rather than through cash unless actually paid.
What to do instead
Label the ratios at the top of the answer: old ratio, new ratio, sacrificing ratio and gaining ratio. Then route each item to the correct ratio: revaluation profit/loss and reserves to old partners; goodwill brought in by the new partner credited to sacrificing partners; accumulated profits to old partners. Check that total capital accounts equal total assets minus liabilities after all adjustments.
Preparing a consolidated or branch reconciliation answer by adding figures across without reconciling the reciprocal items (goods in transit, goods sent at cost plus mark-up, cash in transit) first.
Candidates treat branch and head office records as independent totals and add them, ignoring that the same goods or cash appear in both sets of books, so the combined figure double-counts and the reconciliation never balances.
What to do instead
Before combining anything, list the reciprocal items and eliminate them: goods in transit (adjust both sides), cash in transit (adjust both sides), goods sent at invoice price (strip the mark-up to cost), and goods returned. Reconcile the branch adjustment account to zero as a proof. Only then combine the remaining balances.