ONEC-RDC Expert-Comptable common mistakes
ONEC-RDC Expert-Comptable · Understand the traps and how to avoid them.
Applying OHADA/SYSCOHADA rules when the question asks about IFRS (or vice versa), e.g. treating revaluation or lease accounting under the wrong framework.
Candidates memorise one framework and default to it, ignoring the explicit reference in the question stem to IFRS, SYSCOHADA révisé, or a specific standard.
What to do instead
Before answering, underline the framework named in the stem and list the 2-3 key divergences (leases, revaluation, deferred tax, consolidation scope) so you consciously select the right rule set.
Recording an asset at its acquisition cost without testing impairment or depreciation assumptions, or reversing a provision without evidence of the triggering event.
Cost-based thinking is over-learned and candidates skip the year-end measurement and impairment steps under the accrual and prudence principles.
What to do instead
For every balance-sheet item, run a fixed checklist: initial recognition, subsequent measurement, depreciation/amortisation, impairment test, and reversal conditions.
Computing unit contribution margin and break-even correctly but then answering with the wrong unit (euros vs. units) or ignoring fixed-cost step changes in the relevant range.
Time pressure leads to stopping at the first number produced; candidates do not re-read what the question asks for.
What to do instead
Write the requested unit next to the answer before finalising, and always state the relevant range assumption when fixed costs are involved.
Confusing audit evidence sufficiency with appropriateness, or issuing an opinion modification without linking the matter to materiality and pervasiveness.
Candidates memorise opinion types as labels rather than as a decision tree driven by materiality and pervasiveness.
What to do instead
Practise a two-axis grid (material / not material × pervasive / not pervasive) and justify each conclusion in one sentence before choosing the opinion.
Confusing the roles of the gérant, the conseil d'administration and the assemblée générale, or misquoting the majority required for extraordinary decisions in an SA or SARL.
Corporate-law rules are numerous and similar across forms; candidates rely on general impressions rather than the specific OHADA AUSCGIE provisions.
What to do instead
Build a one-page matrix per legal form (SARL, SA, SAS, SNC) listing decision, competent organ, quorum and majority, and revise it before the exam.
Applying the wrong VAT rate or treatment to an export, an exempt operation, or an intra-community-style transaction without checking the territoriality rule first.
Candidates jump to the rate before establishing whether the operation falls within the scope of Congolese VAT and where it is deemed to occur.
What to do instead
Follow a fixed sequence: scope → territoriality → exemption → taxable base → rate → deduction rights, and show each step in the answer.
Using the accounting rate of return or payback alone to recommend a project, or discounting nominal cash flows at a nominal rate inconsistently.
Simpler metrics are easier under time pressure; candidates also mix nominal and real figures when computing NPV.
What to do instead
Always compute NPV and IRR as the decision criteria, state whether cash flows and discount rate are nominal or real, and treat payback only as a secondary liquidity indicator.
Treating a fixed-term contract as renewable indefinitely, or calculating severance and notice periods without checking the applicable collective agreement and seniority rules.
Labour-law rules are fact-specific and candidates apply general principles without verifying the conventional or statutory source.
What to do instead
For each HR question, identify the source hierarchy (law, collective agreement, contract), then compute entitlements step by step with seniority stated explicitly.
Answering ethics scenarios with a generic 'act with integrity' statement instead of identifying the specific threat (self-interest, familiarity, intimidation) and the safeguard required.
Candidates treat ethics as a values question rather than a structured professional-reasoning framework.
What to do instead
Use the threat-and-safeguard model explicitly: name the threat, assess its significance, list safeguards, and state the action if safeguards are insufficient.
Describing internal control as a list of procedures without distinguishing preventive from detective controls, or proposing a control that does not address the identified risk.
Candidates reproduce textbook definitions instead of mapping each control to a specific risk in the scenario.
What to do instead
For each risk, state the risk, the control type (preventive/detective), the control activity, and the evidence it generates, then check the mapping is one-to-one.