MATSEC AM Accounting study materials
MATSEC AM Accounting study resources

MATSEC AM Accounting common mistakes

MATSEC AM Accounting · Understand the traps and how to avoid them.

Mistake 1

When preparing a statement of financial position or a ledger account, the candidate posts a debit balance as a credit (or vice versa) and then forces the trial balance to agree by inserting a suspense or balancing figure rather than investigating the difference.

Candidates learn double-entry as a mechanical rule (DEAD CLIC) without checking the accounting equation after each transaction, and they treat the trial balance as something that must be made to balance rather than a diagnostic tool. Under exam time pressure the quickest route to a 'finished' answer looks like plugging the gap.

What to do instead

After completing each ledger or worksheet, reconcile using assets = liabilities + capital before moving on, and if a trial balance does not agree, work the difference systematically: halve it (suggests one-sided posting), check divisibility by 9 (transposition), and review the journal for one-sided entries. Practise 10 trial-balance discrepancy exercises and write the correcting journal for each instead of using a suspense account as a plug.

Mistake 2

The candidate computes depreciation or profit on disposal of a non-current asset from the cost figure only, ignoring accumulated depreciation, or charges a full year's depreciation in the year of acquisition and the year of disposal without applying the stated policy.

Depreciation is studied as a formula (cost minus residual value, divided by useful life) and the disposal account is memorised as a layout rather than understood as removing cost and accumulated depreciation together. Candidates also skim the policy note that specifies monthly or pro-rata charging.

What to do instead

For every non-current asset question, build a three-column working: cost, accumulated depreciation, carrying amount, and update it for the year's charge before computing any gain or loss. Read the depreciation policy sentence first and highlight whether it is pro-rata or full-year. Redo past disposal questions by reconstructing the disposal T-account from the working rather than from memory.

Mistake 3

In process or job costing, the candidate calculates equivalent units using output only and ignores closing work in progress, or values abnormal loss/gain at selling price instead of at cost per equivalent unit.

The equivalent-units statement is treated as an optional extra schedule rather than the engine of the cost allocation, and candidates confuse the scrap value of abnormal loss with its cost value. Normal loss scrap proceeds are also wrongly credited to the process account as a gain.

What to do instead

Always draw the process account in four lines (normal loss, abnormal loss/gain, completed output, closing WIP) before computing anything, and prepare a statement of equivalent units with a separate degree-of-completion column for materials and conversion costs. Value abnormal loss/gain at cost per equivalent unit and treat normal loss scrap as a reduction of cost, not income. Drill one process-costing question per study session until the account balances without a plug.

Mistake 4

When asked to reconcile marginal and absorption costing profits, the candidate simply states the profit difference without quantifying it as the change in inventory units multiplied by the fixed overhead absorption rate, or gets the sign wrong.

The two costing systems are learned as separate topics, so the reconciliation is memorised as a phrase ('difference is due to fixed overhead in inventory') rather than as an arithmetic relationship. The direction of the adjustment is genuinely counter-intuitive when inventory falls.

What to do instead

Memorise the rule as: absorption profit minus marginal profit equals the increase in inventory units times the fixed overhead rate per unit (and the reverse when inventory falls). Prove it once by preparing both statements side by side from the same data, then test yourself with a case where inventory decreases so the sign flips. In the exam, show the unit change and the rate explicitly as a two-line working.

Mistake 5

The candidate calculates a variance correctly but then explains it with a generic sentence such as 'the variance is favourable because costs were lower', without identifying the specific operational cause or the interrelationship with another variance.

Variance analysis is revised as a calculation drill, and candidates run out of time or confidence to write the interpretation. They also do not link related variances, so they miss that an adverse material price variance may explain a favourable material usage variance from buying cheaper, lower-grade material.

What to do instead

Prepare a short list of standard causes for each variance (price: supplier change, discount, exchange rate, quality; usage: waste, machine fault, worker skill; labour rate: grade mix, overtime premium; efficiency: supervision, learning curve) and practise writing two-sentence explanations that name a cause and a responsible manager. When two variances move in opposite directions, explicitly state the possible trade-off.

Mistake 6

The candidate applies an accounting standard from memory without checking its scope and recognition criteria, for example capitalising development costs or recognising revenue at contract signing without confirming that the specific conditions in the standard are met.

Standards are revised as headline summaries, so candidates recall the principle but not the gatekeeping conditions (such as the six capitalisation criteria for development costs or the performance-obligation test for revenue). Exam questions deliberately place a plausible but non-qualifying scenario.

What to do instead

For each major standard, write a one-page 'conditions checklist' and apply it item by item to the scenario facts, stating in the answer which condition is met or failed. Practise by taking a scenario and writing the recognition decision with a one-line justification per criterion, so the marker can see the reasoning rather than only the conclusion.

Mistake 7

When asked to discuss a conceptual framework issue, the candidate lists definitions of elements or names a standard but never applies them to the scenario, producing an answer that could have been written without reading the question.

Discussion questions feel subjective, so candidates fall back on memorised definitions as a safe filler. They also underestimate how marks are allocated: application and evaluation carry more weight than recall.

What to do instead

Structure every discussion answer as: identify the issue, state the relevant principle or definition, apply it to the named facts, then conclude with the recommended treatment and its effect on the financial statements. Before writing, underline the scenario-specific facts and make sure each paragraph quotes at least one of them.

Mistake 8

In company accounts, the candidate omits or misclassifies an item in the statement of changes in equity, such as a bonus issue, a rights issue, or a transfer to a general reserve, and treats the bonus issue as a cash inflow.

Share capital movements are learned as journal entries for a simple issue of shares, and the distinction between a bonus issue (no cash, capitalises reserves) and a rights issue (cash received, often at a discount) is blurred. The statement of changes in equity is often skipped in revision because it is seen as a presentation schedule.

What to do instead

Build a share capital and reserves working for every company question: opening balance, plus issue proceeds, less bonus issue capitalisation, plus profit for the year, less dividends and transfers, equals closing balance. Label each movement as cash or non-cash before posting. Practise reconstructing the statement of changes in equity from a trial balance and reconcile it to the closing equity figure on the statement of financial position.

Mistake 9

When preparing a consolidated statement of financial position, the candidate adds parent and subsidiary assets and liabilities line by line without eliminating the investment in the subsidiary, intra-group balances, or unrealised profit in inventory.

Consolidation is taught as a set of pro-forma adjustments, and under time pressure candidates reproduce the layout while forgetting that the investment cost is replaced by the subsidiary's net assets and goodwill. Intra-group trading is often buried in narrative notes that are skimmed.

What to do instead

Work through a fixed consolidation checklist in order: share capital and reserves of the subsidiary at acquisition and post-acquisition, goodwill, intra-group receivables and payables, unrealised profit on inventory, then non-controlling interest. Write each adjustment as a journal before touching the statement, and check that the investment line disappears entirely from the final statement.

Mistake 10

In ratio analysis, the candidate computes ratios correctly but interprets them in isolation, for example calling a high current ratio 'good' or a high gearing ratio 'bad' without reference to industry norms, the trend over the period, or the information given about the business.

Ratio questions are treated as arithmetic, and candidates do not build the habit of comparing against a comparator. They also confuse the direction of interpretation for ratios where a movement can be favourable or adverse depending on context, such as inventory turnover days.

What to do instead

For every ratio, write three things: the formula and result, the comparison (prior year, competitor, or industry benchmark given in the question), and the implication for liquidity, profitability, or risk. Use a template sentence such as 'the ratio moved from X to Y, which suggests ..., although this is limited by ...'. Practise on a set of published accounts and force yourself to state one limitation of the analysis.