Big Four Interview Tips: PwC, Deloitte, KPMG & EY Compared

How Big Four Interviews Are Structured

All four firms — PwC, Deloitte, KPMG and EY — typically run multi-stage selection processes that begin with online applications and psychometric tests, progress through a digital or telephone screening stage, and culminate in an assessment centre or partner interview. The precise order and weighting of each stage can change year to year, so always confirm the current process on the firm's careers site.

Despite differences in branding and culture, every Big Four firm is ultimately assessing the same three things: your technical aptitude (can you handle the work?), your interpersonal skills (can you build client relationships?), and your alignment with the firm's values (do you belong here?). Tailoring your preparation to these three pillars — rather than trying to memorise alleged 'secret questions' — is the most reliable strategy.

PwC: Purpose-Led Competencies and the 'PwC Professional' Framework

PwC publicly describes its 'PwC Professional' framework, which groups the qualities it looks for into five areas: whole leadership, business acumen, technical and digital, global and inclusive, and relationships. When preparing for a PwC interview, map your experiences directly to these categories. Interviewers are trained to listen for evidence, so vague statements about 'being a good communicator' will not score well.

PwC commonly uses a one-way video interview (often via HireVue) at an early stage. You will typically be given a question on screen, a short preparation window, and then prompted to record your answer within a fixed time limit. Candidates who have practised speaking to a camera under time pressure consistently feel more confident on the day. Competency and motivational questions at later stages will probe why PwC specifically — so research the firm's current priorities and be ready to reference them.

• Know the PwC Professional framework before any interview stage.
• Practise timed video answers — rambling past the cut-off is a common mistake.
• Prepare a genuine, specific answer to 'Why PwC rather than the other Big Four?'

Deloitte: Commercial Awareness and the Case Study

Deloitte's process is well known for placing significant weight on commercial awareness, particularly for consulting and advisory roles. Assessment centres frequently include a written case study or group exercise in which candidates analyse a business scenario and present recommendations. Your ability to structure an argument clearly — and to support it with relevant data from the brief — matters far more than arriving at a 'correct' answer.

Competency interviews at Deloitte tend to focus on leadership, teamwork and resilience. The firm's stated values include integrity, outstanding value to clients, and commitment to each other, so weave these themes into your answers naturally rather than quoting the website verbatim. For motivational questions, demonstrating knowledge of Deloitte's specific service lines (e.g. Strategy & Transactions vs. Risk Advisory) shows genuine interest rather than a generic Big Four application.

• Prepare a structured approach to case studies: clarify the problem, segment the analysis, then recommend.
• Read financial press regularly — Deloitte interviewers often probe current business issues.
• Avoid saying 'I applied to all the Big Four' — show firm-specific knowledge.

KPMG: Values-Based Questions and the KPMG Behaviours

KPMG places particular public emphasis on its values — integrity, excellence, courage, together, for better — and interview questions are frequently framed around demonstrating these behaviours in practice. Expect questions such as 'Tell me about a time you had to deliver difficult news to someone' or 'Describe a situation where you challenged the status quo.' These are classic competency questions requiring the STAR method.

KPMG's assessment centres often include a partner or senior manager interview that is more conversational in tone than you might expect. This is deliberate: the firm values self-awareness and the ability to reflect openly on your own development areas. Avoid over-polished, rehearsed-sounding answers; interviewers are looking for authenticity and maturity of thought.

• Learn KPMG's published values and prepare one STAR example per value.
• Be ready to discuss a genuine weakness — evasive answers are penalised.
• Research the specific KPMG service line or sector practice you are applying to.

EY: The 'Exceptional EY Experience' and Strengths-Based Interviews

EY has historically incorporated strengths-based questioning alongside traditional competency interviews, particularly at graduate level. Strengths-based questions — 'What energises you?', 'When do you feel most like yourself at work?' — are designed to assess natural talent and intrinsic motivation rather than rehearsed examples. The best preparation is honest self-reflection: identify activities where you genuinely lose track of time and think about how those map to a professional services environment.

EY's application and assessment process also emphasises digital fluency and an innovative mindset, reflecting the firm's significant investment in technology and AI services. If you can reference relevant digital skills or give an example of how you have used data or technology to solve a problem, you will stand out. As with all four firms, research EY's current strategic priorities — their published annual reports and press releases are the most reliable source.

• Practise strengths-based questions out loud — they feel unnatural at first but become fluent with repetition.
• Demonstrate digital curiosity even if your background is not technical.
• Be specific about which EY service area (Assurance, Tax, Consulting, Strategy and Transactions) you want to join and why.

The STAR Method: Your Core Answer Framework

Every Big Four firm uses some form of evidence-based interviewing, which means your answers must be structured, specific and results-oriented. The STAR method (Situation, Task, Action, Result) is the most widely accepted framework and interviewers are trained to listen for all four elements.

Here is a concrete example for a teamwork question: 'During my second year at university [Situation], I was asked to lead a five-person group project with a two-week deadline and conflicting schedules [Task]. I set up a shared project board, assigned tasks to individual strengths and held two brief check-in calls to resolve blockers [Action]. We submitted on time, received the highest mark in our cohort, and two group members later told me the structure reduced their stress significantly [Result].' Notice that the Result includes both a measurable outcome and a qualitative one — this is what separates strong answers from average ones.

• Prepare six to eight STAR examples covering leadership, teamwork, resilience, commercial awareness, problem-solving and initiative.
• Quantify results wherever possible — numbers anchor your answer in reality.
• Do NOT use the same example twice in one assessment centre.

How to Prepare Across All Four Firms Efficiently

If you are applying to multiple Big Four firms simultaneously — which most candidates do — the most efficient approach is to build a core bank of five to eight strong STAR stories, then adapt them to each firm's specific values language. You are not inventing new experiences; you are reframing the same experience through the lens of KPMG's 'courage' or EY's 'exceptional experience'.

Timed video interviews are now standard across the Big Four. Using a tool like ScreenReady to simulate the one-way video format allows you to identify habits you may not notice in a mirror — filler words, poor pacing, or a tendency to trail off before reaching the Result. Practising under realistic conditions is considerably more effective than reading your notes again. In the final days before your assessment centre, run through your STAR examples on camera and review the playback critically: would you hire this candidate?

• Build a shared STAR story bank, then adapt the framing for each firm.
• Research each firm's current strategic focus (sustainability, AI, specific sectors).
• Book a mock assessment centre or use ScreenReady to stress-test your video answers.
• Prepare two or three intelligent questions for the end of each interview — it signals genuine interest.
• Check each firm's careers site the week before your interview for any process updates.