BCG Potential Test: the legacy screen, explained.
BCG's Potential Test was the firm's legacy reasoning screen — most commonly a 45-minute, 23-question computer-based aptitude test used as a hard filter before first-round interviews. Casey began replacing it from around 2020, most offices had switched by 2023, and it was fully retired globally by early 2026. Here's what it was, and what to prep now.
By CaseyPrep editors · Last updated
- Status in 2026
- Fully retired globally by early 2026
- Format
- Computer-based, 23 MCQs (paper variant: 53 Qs)
- Length
- 45 min (legacy paper/computer version)
- Calculator
- Not allowed
- Passing bar
- ~70% (unofficial)
- Replaced by
- Casey / Cognitive Test
If you've been told to prepare for the BCG Potential Test in 2026, you're almost certainly looking at the wrong format. Casey began replacing the Potential Test from around 2020, most offices had switched by 2023, and the Potential Test was fully retired globally by early 2026. Today the standard screens are the Casey chatbot globally and, in Germany and some nearby offices, the Cognitive Test.
What the BCG Potential Test was
The Potential Test was BCG's standardised aptitude screen used before first-round case interviews. The common version was computer-based: 23 multiple-choice questions in 45 minutes, all built around a single business case, with no calculator. A rarer paper version had 53 questions in 50 minutes across several cases. It existed so BCG could apply a GMAT-style filter that didn't require an actual GMAT score — especially for non-MBA applicants (undergrads, advanced-degree, experienced hires).
Format at a glance
- 23 multiple-choice questions (computer version); 53 Qs / 50 min in the rarer paper version
- 45 minutes total for the computer version — roughly 2 minutes per question
- No calculator — mental math and scratch paper only
- Delivered in English or local language depending on office
- Wrong answers were penalised — don't confuse this with the current Cognitive Test
Question types
1. Business math
Word problems involving percentages, growth rates, margins, breakeven, weighted averages, and simple unit economics. Numbers were chosen to be doable without a calculator if you rounded sensibly.
2. Chart and table interpretation
Bar charts, line charts, pie charts, and dense data tables. Typical task: read a value, compare two segments, or compute a ratio across two exhibits.
3. Reading comprehension
Short business-style passages (a CEO memo, a market overview) followed by inference questions — what can or cannot be concluded from the text.
4. Business judgment
Mini case prompts with four answer choices. You picked the most defensible recommendation given a one-paragraph situation. Closer to GMAT Critical Reasoning than to a real case.
Scoring and the passing bar
BCG never published an official cutoff. The working number candidates and ex-recruiters consistently cite is around 70% correct, i.e. roughly 16 out of 23. Below that bar, the file was typically closed regardless of CV strength — the test functioned as a binary gate, not a tie-breaker.
Is the BCG Potential Test still used in 2026?
No. Casey rolled out from around 2020, starting in Asian offices, reached most offices by 2023, and fully replaced the Potential Test globally by early 2026. The global default is now the Casey chatbot (most offices) or the Cognitive Test (Germany and a growing set of European and Asia-Pacific offices).
The decisive signal is your invitation email. If it doesn't explicitly name "Potential Test," you're getting Casey or the Cognitive Test.
What replaced it
Casey — the AI chatbot case
Casey is a roughly 25–35 minute linear case with 8–10 typed questions across structuring, quant, exhibit reading, and synthesis, ending with a 60-second video recommendation. Scoring mechanics are not disclosed; candidate reports indicate automated evaluation plus a human review layer for shortlisted candidates. This is the format most BCG candidates worldwide encounter today.
Cognitive Test — Germany + expanding EU/APAC offices
The BCG Cognitive Test is an 80-question, 30-minute live-proctored screen covering numerical and logical reasoning (no verbal section). It's the closest spiritual successor to the Potential Test — same "filter you before case interviews" purpose, but delivered live over Zoom and far more time-pressured.
How to prep — if you actually got the Potential Test
- Drill GMAT Problem Solving and Data Sufficiency quant under a 2-minute clock
- Practice chart and table reading from McKinsey PST prep materials — same skill set
- Run mental-math reps daily (percentages, ratios, multiplication)
- Do GMAT Critical Reasoning sets for the business-judgment questions
Almost all of this transfers directly to Casey and the Cognitive Test, so the prep time is never wasted even if your format ends up being the modern one.
Frequently asked questions
No. Casey began replacing it from around 2020, most offices had switched by 2023, and the Potential Test was fully retired globally by early 2026. If your invitation email doesn't explicitly name it, prep Casey or the Cognitive Test instead.