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BCG Casey and interview prep
Everything about BCG's online case and interviews in one place: what to expect, how to prepare, and a full Casey case to practise free.
- Online test
- Casey, in some offices
- Time
- About 30 to 35 min
- Format
- A chatbot-led case
- Then
- Case interviews
Runs in your browser · no download · free for now, unlimited runs
On this page
How hiring works at BCG
The four stages most applicants go through. Offices vary, so check with your recruiter.
- 1
Application
Your CV and cover letter.
- 2
Online testPractise this here
Casey, another online test, or none, depending on the office.
- 3
First round
Two or three case interviews of about 45 minutes each.
- 4
Final round
More case interviews, with senior staff.
What to expect from BCG Casey
- What it is
- A business case run by a chatbot called Casey. You type your answers and do the maths as you go.
- Who gets it
- Some offices only. US applicants take a short assessment first, and some European offices use a reasoning test instead.
- Time
- About 30 to 35 minutes, with a timer on each question.
- Questions
- Candidates report eight to ten, and BCG has described a short video summary at the end.
- Device
- A computer with a reliable connection.
- Retakes
- If you've taken it before, you won't be asked to again.
Practise BCG Casey free
Full length and timed, with a scored review at the end. Unlimited runs.
Casey
20 minA full case, typed, scored question by question.
Your prep plan
Five steps for the days before your deadline.
- 01
Check your invitation
It tells you whether you have Casey, another test or none, and your deadline.
- 02Read the Casey guide
Learn the format
Know the question types and the timers before you start.
- 03Play Casey
Play a full Casey case
Then read the review, question by question.
- 04Case maths drills
Sharpen your maths
Growth rates, margins and breakevens come up in almost every case.
- 05Practise a case
Start on the interviews
BCG expects you to lead the case. Practise driving one out loud.
The interviews
Candidate-led cases
You lead the case: you decide what to look at next and say why. BCG also asks about your experience.
- End every structure by saying where you'd start and why.
- Expect to set up your own calculations.
- Keep answers short and lead with your conclusion.
Cases in the library modelled on BCG interviews
- Helix Diagnostics prices a new testPricing · Hard · 35 min
- Northstar Bank loses its depositsCompetitive Response · Hard · 35 min
Common questions
Does everyone get Casey?
No. It depends on the office and the role. Your invitation or recruiter will tell you.
Can I use a calculator?
BCG's pages don't say for Casey. Candidates usually report using a calculator and paper, so check your invitation.
What is the Consultant Career Assessment?
The first online test for many US applicants. It takes about 30 to 35 minutes and has to be done within 48 hours.
How long is the practice case here?
About 20 minutes. It's a shorter complete case, so you can repeat it.
Can I reapply if it doesn't work out?
Yes. BCG suggests waiting at least 12 months.
Ready for BCG Casey?
Practise the full test now. Free, in your browser, with a scored review at the end.
Official sources
BCG's own pages. They change between intakes, so check anything important there.
- BCG interview process
careers.bcg.com · How BCG's interviews work and how they vary by office.
- Case interview preparation
careers.bcg.com · BCG's tips, with interactive practice cases.
- Candidate and application FAQs
careers.bcg.com · Reapplying, test links and other practical questions.
- BCG Mexico: the online case with Casey
careers.bcg.com · One office's description of Casey.
Guides on this site
Last reviewed on 9 October 2026. PartnerRound is independent and is not affiliated with, endorsed by or connected to Boston Consulting Group. The simulations are practice tools built from publicly described formats; the scenarios differ from the ones you will sit.
