CIMA P2 common mistakes
CIMA P2 · Understand the traps and how to avoid them.
In an investment appraisal, discounting the projected operating cash flows but then deducting the initial capital outlay as a pre-discounted figure, or discounting the whole net figure again, so the NPV is misstated by the time-value of the initial investment.
Candidates learn 'NPV = PV of inflows minus outflows' and mechanically apply a discount factor to every line in the table, forgetting that the outlay at T0 already carries a factor of 1.000. Under time pressure the table is filled row by row without checking the T0 column.
What to do instead
Before calculating, draw a timeline and mark which cash flows occur at T0. State explicitly that T0 items are undiscounted. As a check, recompute the NPV with the outlay left undiscounted and confirm the figure matches; if the two differ by exactly the outlay times (1 minus the factor used), the error is confirmed.
Treating all relevant costs as those that appear in the accounting records, so allocated fixed overhead, sunk development spend, or apportioned head-office charges are included in a relevant-cost or make-or-buy decision, while opportunity costs that never appear in the ledger are omitted.
Financial accounting trains candidates to read figures off a cost card. Relevant costing requires the opposite discipline: exclude anything unavoidable or already incurred and include foregone contribution. The exam deliberately seeds the cost card with apportioned overhead to test this.
What to do instead
For every cost line ask two questions in writing: 'Will this change if I take the decision?' and 'Is it in the future?'. Only lines answering yes to both go in. Separately list any scarce resource the decision consumes and add its contribution foregone as a cost. Build the answer from a blank page, not by editing the cost card.
Calculating a variance and stopping there, without decomposing it into the operational and planning elements or linking it to the responsible manager and the action to be taken.
Candidates memorise variance formulae and treat the number as the answer. P2 style questions ask what the variance tells management; a correct figure with no interpretation earns only the calculation marks and loses the analysis marks, which are usually the larger share.
What to do instead
Adopt a fixed three-sentence structure after every variance: what the number is, why it arose (price, mix, efficiency, planning error), and what management should do or investigate. Where planning and operational variances are examinable, always split and state which part is controllable by the operational manager.
Quoting a single point estimate from an investment appraisal as the decision basis, ignoring the risk dimension, or computing sensitivity as a percentage of the wrong base (for example dividing the change in NPV by the project NPV rather than by the present value of the cash flow item being tested).
The arithmetic of NPV feels like the 'real' answer, and risk tools such as sensitivity, probability analysis and adjusted discount rates are treated as optional extras. The sensitivity base is also genuinely easy to confuse because the denominator is the PV of the item, not the item's cash flow.
What to do instead
Always finish an appraisal with one risk sentence naming the most sensitive variable. Learn the sensitivity formula as (NPV divided by PV of the variable's cash flows) times 100, and practise stating the result as 'this variable can move x% before NPV reaches zero'. Where probabilities are given, compute an expected NPV alongside the base case.
Confusing the roles and outputs of internal audit and external audit, for example describing internal audit as giving an opinion on the truth and fairness of the financial statements, or saying external audit reports to the audit committee on the adequacy of internal controls as its primary purpose.
Both functions use similar vocabulary (independence, evidence, reporting, controls) and candidates revise them in the same sitting. The distinction is conceptual rather than computational, so it is under-practised relative to numerical topics.
What to do instead
Write and memorise a two-column contrast covering: who appoints, to whom they report, primary objective, scope, and whether the work is mandatory. Anchor it with the phrase 'internal audit adds value for management; external audit provides assurance to shareholders'. Use that sentence to open any question comparing the two.
Listing control weaknesses in a scenario without ranking them by significance, and without stating the consequence and a specific, costed control that would mitigate each one.
Candidates treat weakness-spotting as a recall exercise and write a long flat list. Marks are awarded for linking weakness to risk to recommendation, and a flat list of ten unranked points scores less than five developed ones.
What to do instead
Use a three-column table: weakness, risk if it occurs, recommended control. Then rank the top two by likelihood and impact and say why they come first. Make each recommendation operational, naming who does what and how often, rather than writing 'improve controls'.
Applying the wrong tax treatment at the boundary cases: charging or reclaiming tax on exempt or zero-rated items, misclassifying employment status for payroll taxes, or applying the wrong treatment to capital versus revenue expenditure.
The core rules are learned, but exams test the exceptions and the boundaries, and candidates pattern-match on keywords rather than checking the conditions. Registration thresholds and status tests are also updated, so memorised old figures cause errors.
What to do instead
For any tax question, write the applicable test as a checklist before applying it (for example: what is supplied, to whom, where, and under what status). Practise the boundary cases specifically, and where a threshold or rate is not given in the question, state the rate you are assuming and flag it as needing confirmation rather than inventing a figure.
Ignoring the timing of tax cash flows in investment appraisal, treating the tax saving on capital allowances as occurring in the year the asset is bought rather than in the following period, and forgetting the balancing allowance or charge on disposal.
Tax cash flows are an add-on line in the appraisal and are computed last, under time pressure, so the one-period lag convention and the disposal adjustment are the first things dropped. Candidates also assume tax is always paid in the year the profit arises.
What to do instead
Add two permanent rows to the appraisal proforma: 'tax on operating cash flows (one year in arrears)' and 'tax saving on capital allowances'. Treat the disposal value as a cash inflow and compute the balancing adjustment in the year of disposal. Check the total allowances claimed over the asset's life equal cost minus disposal proceeds.
Describing a technology or information system in general terms ('the system improves efficiency and reduces errors') instead of naming the specific control, data flow or risk being tested, such as segregation of duties within the system, input validation, or the audit trail.
Technology questions feel unfamiliar and candidates retreat to generic benefits language. The syllabus tests understanding of how systems process and control data, which requires specific vocabulary rather than broad claims.
What to do instead
Build a reusable list of specific system controls (access rights, input validation checks, reconciliation controls, exception reports, audit logs, backup and recovery) and practise attaching one to each stage of the data cycle: input, processing, output. Answer with 'which control, at which stage, preventing which specific error'.
Writing essay answers as unbroken prose with no headings, no figures referenced and no conclusion, so the marker cannot find the points being made, and running out of time on the final long-form question.
Candidates spend too long on the first numerical question, then rush the discursive section and write stream-of-consciousness. Many also believe length earns marks, so they write more rather than structuring better.
What to do instead
Allocate time per question before starting and hold to it, moving on when the allocation expires. Answer discursive questions with short headed paragraphs, one point per paragraph, each stating the point, a one-line justification and a consequence. Finish with an explicit recommendation sentence so the conclusion is unmissable.