BDO online assessment: SHL, Amberjack and interview preparation in 2026
BDO candidates are reported to face blended numerical, verbal and judgement questions, commonly associated with SHL and, in one source, Amberjack, before interviews or an assessment centre. The safest preparation is to practise the underlying provider formats, not a generic aptitude test. Start with forge’s SHL provider hub and compare other firms in the employer assessment guides.
Source note: forge checks provider references against official candidate guidance from SHL, Aon, and HireVue, then treats employer-provider links as caveated because they can change by role, office and recruitment season.
- BDO candidates commonly report reported SHL or Amberjack numerical, verbal and behavioural or situational judgement assessment.
- Provider attribution changes by role, country and recruitment season.
- forge covers the matching SHL numerical, verbal, logical, deductive and SJT-style practice surfaces.
- If your process includes AON or Cappfinity, use the matching provider drills before your real assessment.
- The later stages usually test motivation, values, communication and role-specific judgement.
Quick summary: BDO assessments in 2026
- Main provider signal: reported SHL or Amberjack numerical, verbal and behavioural or situational judgement assessment.
- Both checked sources associate BDO with SHL; one also names Amberjack and describes a blended numerical, verbal and behavioural assessment.
- Use SHL numerical and verbal practice as the baseline unless your invitation names another platform.
- Prepare values-based interview answers and a concise motivation for the role.
Research basis
Employer assessment routes change. We checked the sources below, separated direct process evidence from prep-site reporting, and avoided fixed timings or question counts where the employer does not publish them.
- 1ApplicationApplication and eligibility questions for the selected business area.Member-firm route
- 2Online assessmentReported blended numerical, verbal and situational or behavioural questions.SHL/Amberjack signal
- 3InterviewMotivation, strengths and evidence against the role's competencies.Digital or live
- 4Assessment centrePossible group, written, presentation or partner-interview exercises.Final stage
Who is BDO?
BDO is an international network of accounting and advisory firms. Graduate selection commonly values accuracy, professional scepticism, client communication and the judgement to raise an issue when the evidence does not reconcile.
What is SHL?
SHL is the world’s most widely used psychometric test publisher — its assessments screen millions of graduate and professional candidates every year. When an employer says you have an “online assessment”, it is very often an SHL test running on the SHL platform. SHL does not set a universal pass mark; each employer licenses the tests and sets its own cut-score, which is why the same SHL numerical test can screen at the 50th percentile for one company and the 80th for another. Our SHL provider hub and which SHL test am I taking? guide decode exactly what you have been sent.
The full SHL test suite (not just numerical and verbal)
BDO is most associated with SHL or Amberjack, but the exact mix can change by role, country, business unit and intake. Prepare the commonly reported sections first, then use your invitation email to narrow the final test list.
| SHL test | What it measures | Used at BDO? | forge guide |
|---|---|---|---|
| Verify Numerical Reasoning | Interpreting data from tables, charts and graphs under time pressure (GCSE-level maths). | Commonly | Numerical guide |
| Verify Verbal Reasoning | Judging statements as True / False / Cannot Say from a short passage. | Commonly | Verbal guide |
| Verify Inductive Reasoning | Spotting the pattern in abstract shape sequences — logical/abstract reasoning. | Possible | Inductive guide |
| Verify Deductive Reasoning | Applying rules and constraints to reach a valid conclusion (schedules, orders, conditions). | Possible | Deductive guide |
| Verify Interactive | The newer 'build-the-answer' format — drag, rank and classify instead of multiple choice. | Possible | Interactive guide |
| Verify G+ / General Ability | A combined cognitive battery (numerical + verbal + inductive) with a harder ceiling. | Possible | Which test? |
| Calculation & Checking | Speed-and-accuracy tests on basic arithmetic and error-spotting for operational roles. | Possible | SHL hub |
| Situational Judgement (SJT) | Rating or ranking responses to realistic workplace scenarios against the employer's values. | Commonly | SJT guide |
| OPQ (Occupational Personality Questionnaire) | A personality questionnaire mapping your working style — no right answers, answer consistently. | Possible | Personality tests |
| MQ (Motivation Questionnaire) | What drives and de-motivates you at work; used alongside the OPQ for fit, not ability. | Possible | Overview |
If your invitation email names a test you are unsure about, match the wording to the right guide with which SHL test am I taking? — the fastest way to stop preparing for the wrong format.
What is in the BDO numerical assessment?
Expect percentages, ratios and tables in client or business contexts. Accuracy matters more than flashy mental maths: write the base, check the unit and estimate the answer range before selecting an option.
Do not stop at reading the format. Build speed with a timed drill. Practise SHL numerical
What is in the BDO verbal assessment?
Audit-style reading rewards restraint. Decide whether the passage proves the claim; do not fill a gap with what would normally happen in business.
Do not stop at reading the format. Build speed with a timed drill. Practise SHL verbal
How should you approach BDO judgement questions?
Protect evidence quality and client confidentiality, clarify uncertainty and escalate material issues. A response that keeps the client happy but ignores a control is unlikely to be strong.
A representative numerical trap
Most of these employer processes include at least one data-interpretation section: SHL, AON, Cappfinity and consulting-style digital assessments all punish the same habits. forge’s review method calls this the Base–Unit Check: name the denominator and required unit before calculating. It catches wrong-base percentages and gross-versus-net errors without pretending every employer uses the same question bank.
Percentage change = (100 - 80) / 80 x 100 = 25%.
Trap: dividing by the new figure gives 20%, a distractor that often appears in SHL-style numerical tests. Always divide the change by the original value.
Reading about the test isn’t the same as passing it
A guide like this one — or a video walkthrough — teaches you the format, the stages and the traps. That is the map, and it matters. But it cannot build the one thing the assessment actually scores: reasoning speed and accuracy under a live timer. That only comes from doing real questions under exam conditions, then reviewing why you missed each one. Passive reading and watching plateau quickly; deliberate, timed practice is what moves your percentile.
The most representative SHL or Amberjack practice is on forge: real, representative questions, a free diagnostic to find your weak spots, worked answer explanations, no subscription, and credits that never expire — the best way to practise the assessments that decide whether you get seen.
Start practising freeHow to prepare for the BDO assessment
- Confirm the provider. Read your invitation email first. Employer-provider relationships change by country, role and intake year.
- Run a relevant baseline. Take one timed drill in the format named in your invitation. If no provider is named, start with the task family: numerical, verbal, judgement, coding or work sample.
- Practise the role-specific section. Prioritise the sections most relevant to BDO: reported SHL or Amberjack numerical, verbal and behavioural or situational judgement assessment.
- Prepare the interview stage. Build STAR examples around the company's values and rehearse them on camera if there is a recorded interview.
- Run a full timed mock. Do the test in one sitting, review every wrong answer, then repeat only the weakest question families.
- Prepare one example each for catching an error, handling confidential information, explaining a complex point and asking for help early.
Ready to practise for BDO?
Use forge for SHL numerical, verbal, logical, deductive and SJT-style practice, plus AON and Cappfinity drills where your invitation names those providers.
Sign up freeRelated guides
- All employer assessment guides
- SHL Tests: the complete provider hub
- SHL Numerical Reasoning Test
- SHL Verbal Reasoning Test
- Situational judgement tests
- Build an error log
Frequently asked questions
Does BDO use SHL tests?+
SHL is the strongest provider signal because both checked prep sources associate it with BDO. Processes can still differ by member firm and programme.
Does BDO use Amberjack?+
One checked source reports an Amberjack route. Treat the provider named in your invitation as final.
What is in the BDO online assessment?+
Reported formats blend numerical, verbal and situational or behavioural judgement questions.
How should I prepare for BDO numerical questions?+
Practise tables, percentages, ratios and business data under time pressure, with a strict unit and denominator check.
What matters in BDO judgement questions?+
Accuracy, integrity, confidentiality, client communication and proportionate escalation are reliable principles.
Note on accuracy: the test providers named in this guide reflect candidate reports and publicly available information as of 2026, and are provided for preparation guidance only. Employers do not usually publish which assessment provider they use, and these relationships change over time — BDO may switch providers, run different tests for different roles, regions or intakes, or use a provider not listed here. Nothing on this page is confirmed or endorsed by BDO or any test publisher, and it should not be relied on as a definitive statement of BDO’s current process. Always confirm the exact test and provider from your official invitation email before you prepare.
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