McKinsey & Company Assessment Centre Guide 2027
Two rounds of interviews (first round + final round) testing case interview skills and personal experience. 4 interviews across 2 rounds. Everything you need to know to prepare.
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Format
What the McKinsey & Company assessment centre looks like
First Round — Case Interview
40-50 minutes1 interviewer (Manager/Principal)
Interviewer-led case interview. You receive a business problem and work through analysis, data interpretation, and recommendation.
First Round — Experience Interview
30-40 minutes1 interviewer
Behavioural interview testing leadership, personal impact, or problem-solving. Similar to McKinsey's PEI format. Deep dive into one story for 15-20 minutes.
Final Round — Case Interview
40-50 minutes1 Partner
Harder case with more ambiguity. Partners probe your assumptions and test your ability to think under pressure with incomplete data.
Final Round — Experience Interview
30-40 minutes1 Partner
Deeper experience interview with more senior interviewers. Tests cultural fit, maturity, and self-awareness alongside leadership evidence.
Prep plan
48-hour preparation plan
148 hours before
Practise 3-4 case interviews — focus on interviewer-led format.
Prepare 3 anchor stories: leadership, personal impact, and entrepreneurial drive. Each must have quantified outcomes.
Research McKinsey & Company's recent work — check their publications, case studies, and industry reports.
Review market sizing frameworks — you may need to estimate a number under pressure.
Prepare your "Why McKinsey & Company?" answer with specific references to the firm's culture, methodology, or people.
224 hours before
Do one final practice case — time yourself to ensure you're comfortable within 40 minutes.
Check the Financial Times for any major business news.
Prepare 3-4 questions for partners — about their career, projects, or the firm's strategy.
Plan your outfit and route. Smart business casual or business formal depending on the firm.
Get 8 hours of sleep. Case interviews require sharp mental performance.
3Morning of
Review your anchor stories and case frameworks one final time.
Scan morning headlines — interviewers may reference current events.
Arrive 15 minutes early. Be personable with everyone you meet.
Stay energised between rounds — the quality of your final interview matters as much as your first.
Questions
McKinsey & Company assessment centre questions by round
Different interviewers ask different types of questions. Know what to expect at each level.
- 1Tell me about a time you led a team through a difficult challenge (PEI — Leadership).
- 2Describe a time you created change in an organisation (PEI — Personal Impact).
- 3Our client is a UK grocery chain losing market share. What would you investigate?
- 4How would you estimate the number of electric vehicles sold in the UK last year?
- 5A private equity firm wants to acquire a gym chain. Should they?
Technicals
McKinsey & Company technical questions
- 1Ecosystem simulation — manage an ecosystem of species
- 2Identify patterns in data and make strategic decisions
- 3Time-pressured problem solving with incomplete information
- 4No traditional numerical or verbal reasoning — it's game-based
- 5Tell me about a time you led a team through a difficult challenge (PEI — Leadership).
- 6Our client is a UK hospital trust facing rising costs and falling patient satisfaction. How would you structure your approach?
- 7How does McKinsey & Company's methodology differ from BCG?
- 8Estimate the market size for electric vehicle charging stations in the UK.
- 9A private equity firm is evaluating an acquisition of a UK healthcare chain. Should they proceed?
- 10What recent McKinsey & Company publication or insight have you found interesting and why?
Evaluation
What McKinsey & Company interviewers evaluate
Structured problem-solving
McKinsey cases test your ability to break problems into components. Use MECE frameworks. Never jump to conclusions.
Leadership
PEI questions specifically test leadership. Have 2-3 strong stories of leading teams, influencing without authority, or creating change.
Personal impact
They want evidence of making a tangible difference — not just participating. Quantify your impact wherever possible.
Intellectual curiosity
McKinsey consultants work across industries. Show breadth of interest and ability to learn quickly.
Communication clarity
Top-down communication is critical. State your answer first, then support it. Never ramble.
Entrepreneurial drive
They want people who take initiative without being asked. PEI often tests this directly.
Avoid
Common mistakes at McKinsey & Company assessment centres
Jumping to conclusions in case interviews without laying out a structure first. Always pause, structure your thinking, then proceed.
Having only one anchor story. Different interviewers test different competencies — prepare at least 3 distinct examples.
Not asking clarifying questions at the start of a case. Good candidates confirm understanding before diving in.
Failing to synthesise at the end. Partners want a clear recommendation, not just analysis. State your answer, then support it.
Being thrown by unexpected case types. Practise market sizing, profitability, market entry, and M&A cases.
Treating the experience interview as less important than the case. It carries equal weight.
Practise McKinsey & Company assessment centre questions
Intervyo's assessment centre practice simulates real McKinsey & Company interviews. Record your answers on camera and get AI-scored feedback across behavioural, technical, and commercial awareness questions — the same types you'll face on the day.
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FAQ
McKinsey & Company assessment centre FAQs
Be ready for every round
AI-scored practice with McKinsey & Company questions. Behavioural, technical, and commercial awareness — all scored with detailed feedback. Free for 3 days.
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