CAIIB ABM common mistakes
CAIIB ABM · Understand the traps and how to avoid them.
Computing CRR and SLR deductions from total liabilities without first separating Net Demand and Time Liabilities (NDTL), or applying the CRR percentage to total deposits instead of NDTL.
Candidates memorize the CRR/SLR percentages but skip the NDTL construction step, and the exam routinely asks for the cash reserve amount from a balance sheet where liabilities are split into demand, savings, and term categories with inter-bank adjustments.
What to do instead
Build NDTL in a fixed sequence every time: sum demand liabilities (current, savings demand portion, demand drafts), sum time liabilities (term deposits, savings time portion, certificates), add net liabilities to overseas branches, then subtract inter-bank liabilities netted against inter-bank assets. Only then apply CRR (to NDTL) and SLR (to NDTL). Practise five full balance-sheet drills until the sequence is automatic.
Treating the base rate and MCLR as interchangeable, or stating that MCLR applies to all loans including those to micro and small enterprises below the threshold.
Both are internal benchmark rates for pricing loans, so candidates conflate their scope and effective dates; the exam tests the distinction between the base rate regime and the marginal cost of funds based lending rate regime, and the carve-outs.
What to do instead
Memorize the structural difference: base rate is built on cost of funds plus a minimum margin and is a floor, while MCLR is computed from marginal cost of funds, negative carry on CRR, operating cost, and tenor premium. Note that MCLR applies to new floating-rate loans and that certain categories such as fixed-rate loans and specific small-ticket exposures are outside or have separate treatment. Build a one-page comparison table and test yourself on which product falls under which regime.
Calculating the EMI with the wrong compounding convention, for example dividing the annual rate by 12 but treating the term as annual periods, or mixing reducing-balance formulas with flat-rate interest.
Candidates recall the EMI formula but not the unit consistency requirement, and flat-rate versus reducing-balance interest is a common source of silent arithmetic error under exam time pressure.
What to do instead
Always convert to monthly units first: monthly rate equals annual rate divided by 12, number of instalments equals years multiplied by 12. Write the formula as EMI = P x r x (1+r)^n / ((1+r)^n - 1) with r monthly. For flat-rate questions, compute total interest as principal x rate x years and divide by instalments, and explicitly label which convention you used. Do two practice sets, one each convention, and compare the results to see the magnitude of the difference.
Mixing up the ratio analysis categories: classifying a ratio as a liquidity ratio when it is a solvency or leverage ratio, or computing a ratio with the wrong denominator such as using total assets instead of average assets for return on assets.
Ratio names sound similar (current ratio, quick ratio, cash ratio, debt-equity, proprietary ratio) and the exam gives a full financial statement from which several ratios must be computed, so denominator selection errors cascade.
What to do instead
Maintain a categorized ratio sheet: liquidity (current, quick, cash), leverage (debt-equity, proprietary, capital gearing), turnover (inventory, receivables, payables, asset turnover), and profitability (gross margin, net margin, return on assets, return on equity). For each, write the exact numerator and denominator beside it. When a question says 'average', use opening plus closing divided by two. Practise extracting each ratio from one set of statements in a single pass.
Answering Basel III capital questions using Basel II definitions: counting Tier 2 instruments that no longer qualify, ignoring the capital conservation buffer, or miscomputing the common equity tier 1 ratio from the wrong base.
The Basel framework evolved through Basel I, II, and III, and candidates study older material or remember headline percentages without the qualifying-criteria detail and the phase-in structure that the exam tests.
What to do instead
Anchor the numbers: minimum common equity tier 1 ratio, tier 1 ratio, and total capital ratio, plus the capital conservation buffer and the additional requirements for systemically important banks. Learn which instruments qualify at each tier under Basel III, and that deductions are applied predominantly at the common equity tier 1 level. When a question gives capital components, first classify each item into CET1, AT1, or Tier 2 before computing any ratio.
Confusing the three pillars of Basel and the supervisory review process: assigning disclosure requirements to Pillar 2 and supervisory review to Pillar 3, or stating that Pillar 1 covers liquidity only.
The pillar structure is taught as a list, so candidates memorize the labels without the content, and exam questions probe which pillar covers minimum capital, which covers the supervisory review and capital adequacy assessment, and which covers market discipline through disclosure.
What to do instead
Map each pillar to one sentence: Pillar 1 sets minimum capital for credit, market, and operational risk; Pillar 2 is the supervisory review and evaluation process including the internal capital adequacy assessment; Pillar 3 is disclosure and market discipline. Add the liquidity standards (liquidity coverage ratio and net stable funding ratio) as separate Basel III additions rather than folding them into a pillar. Recite the three sentences before attempting any pillar question.
Making operational risk capital errors: using the basic indicator approach with gross income averaged over the wrong number of years, or applying the wrong percentage to a negative-gross-income year.
The operational risk approaches (basic indicator, standardized, advanced measurement) each have specific calculation rules, and the treatment of negative gross income years and the averaging period are frequently tested details that candidates skip.
What to do instead
For the basic indicator approach, use average annual gross income over the previous three years, counting only positive gross income years in both numerator and denominator, and apply the fixed alpha percentage. For the standardized approach, apply the business-line beta to each line's gross income. Write out the treatment rule for negative years explicitly and solve two numerical examples where one year is negative.
Treating a credit default swap, a letter of credit, and a forward contract as the same category of credit risk mitigation, or ignoring the haircut and maturity mismatch adjustments when computing mitigated exposure.
Credit risk mitigation techniques differ by whether they are funded or unfunded, and the exam tests the eligibility criteria and the haircut application rather than the concept alone, so candidates who know the definitions still lose marks on the mechanics.
What to do instead
Sort mitigants into funded (cash collateral, deposits, eligible securities) and unfunded (guarantees, credit derivatives, letters of credit). For each, note eligibility conditions and the haircut or credit conversion factor applied. When computing mitigated exposure, apply the haircut to the collateral value, adjust for currency and maturity mismatch, and then subtract from exposure. Practise one full mitigation calculation with a maturity mismatch.
Answering human resource management questions with general management theory rather than the specific banking HR framework, for example describing Maslow's hierarchy when the question asks about performance appraisal methods or the distinction between training and development.
The HRM portion of the paper overlaps with general management studies, so candidates answer from general knowledge and miss the bank-specific concepts such as recruitment sources, appraisal techniques, and job evaluation methods that the syllabus actually tests.
What to do instead
Study the HRM module as a set of named frameworks: recruitment and selection steps, training needs analysis, appraisal methods (ranking, grading, critical incident, 360-degree, management by objectives), and compensation and job evaluation. For each, learn the definition plus one banking example. When a question names a method, answer with the method's mechanics rather than a generic motivation theory.
Miscalculating working capital and cash operating cycle: omitting the payables period from the cycle, or mixing gross and net working capital without stating which is required.
The operating cycle formula has three components and candidates routinely drop the payables leg or reverse the sign, and the exam asks for both the cycle length and the working capital requirement from a data set.
What to do instead
Write the cycle as inventory holding period plus receivables collection period minus payables deferral period, and compute each period as the relevant balance divided by the relevant daily flow (cost of goods sold for inventory and payables, sales for receivables). Distinguish gross working capital (current assets) from net working capital (current assets minus current liabilities) and state which the question asks for. Solve three cycle problems with different data shapes.