Dataford · Sector Report
The Consulting & Case Interview Report 2026
There is no such thing as “the consulting interview”. We analyzed thousands of consulting interview experiences and found two completely different exams hiding under one label — the brutal strategy case, and one of the gentlest loops anywhere.
Summary · Key findings
“Consulting” is two different interviews. The strategy case at a McKinsey or BCG and the loop at an IT-services giant share an industry, not an experience. Treating them as one is the fastest way to mis-prepare.
The strategy case is genuinely brutal. McKinsey loops are rated hard 67% of the time, with BCG and A.T. Kearney not far behind — among the steepest interviews in any industry, on par with the quant firms.
The IT-services arm is among the gentlest anywhere. Accenture (10% hard), PwC (15%), and Deloitte (17%) sit near the bottom of the entire difficulty table — roughly a seventh as demanding as the strategy case.
The case interview is a format, not a topic. It tests structure under pressure — breaking a vague business problem into a clean framework, estimating, and reasoning to a recommendation out loud. You cannot memorize your way through it.
Hard, but humane. Even the toughest strategy cases are rated a positive experience more than 60% of the time. The format is conversational and collaborative by design — difficulty without hostility.
Candidates ask “how hard is the consulting interview?” as if there were one answer. There are two, and they are about as far apart as any two interviews in our data.
We split the industry into the strategy firms — McKinsey, BCG, and their peers — and the large IT-services players, then measured how hard each loop is rated and how candidates feel about it. The difficulty gap between the two halves is one of the widest anywhere.
Knowing which consulting interview you are actually walking into is the difference between preparing well and preparing for the wrong test. The full method is at the end.
The split
One industry, two difficulty tiers
Lined up on a single chart, the divide is impossible to miss. The strategy firms cluster at the brutal end; the IT-services giants sit among the gentlest loops in the entire market.
McKinsey, BCG, and A.T. Kearney sit beside the quant firms at the top of the difficulty table. Accenture, PwC, and Deloitte sit near the bottom of it. The roughly sevenfold gap between McKinsey and Accenture is the clearest evidence that “consulting” names an industry, not an interview.
Finding
Hard, but rarely hated
For all the dread the case interview inspires, candidates come away from it feeling good — and that holds across both tiers, the brutal and the gentle.
Strategy firms are far harder than the IT-services players, yet both clear 55–69% positive.
The reason is the format. A case is a conversation: the interviewer walks the problem with you, nudges, and reacts. That collaborative structure means even a brutally hard case rarely feels adversarial — difficulty without hostility, which is exactly the combination candidates rate well.
Outlook
How to prepare for a case interview
First, identify which interview you are facing. If it is a strategy firm, prepare for one of the hardest loops anywhere — and prepare the format, not facts. The case rewards structure: a repeatable way to break an open problem into a framework, size it with fast estimation, and reason aloud to a recommendation.
Practice out loud, in mock conversations, because the interview is a live dialogue. And take some comfort in the sentiment numbers: this is a hard interview that is built to be fair, so disciplined preparation is reliably rewarded.
Prepare for the case the right firm runs
Company-specific interview guides for the strategy firms and the wider consulting field — so you train for the interview you will actually sit.
Explore interview guidesFAQ
Frequently asked questions
How hard is the consulting case interview?+
At the strategy firms, very. McKinsey loops are rated hard 67% of the time, with BCG and A.T. Kearney close behind — on par with the toughest quant interviews. The IT-services side of consulting is far gentler.
Is the McKinsey interview harder than Deloitte?+
Dramatically. McKinsey is rated hard about 67% of the time versus 17% for Deloitte and 10% for Accenture — roughly a sevenfold gap. They are different interviews that happen to share an industry.
What is a case interview?+
A format, not a topic. You are handed an open business problem and asked to structure it, estimate, and reason to a recommendation out loud. It tests judgment and structure under pressure rather than recall, so it cannot be memorized.
Are consulting interviews a bad experience?+
No. Even the hardest strategy cases are rated positive more than 60% of the time. The format is deliberately conversational and collaborative — demanding without being hostile.
How do I prepare for a consulting case interview?+
Practice structure above all: a repeatable way to break a vague problem into a clean framework, size it with quick estimation, and talk through a recommendation. Do mock cases out loud, because the interview is a live conversation, not a written test.
Methodology
How this report was built
Difficulty and sentiment come from Dataford's interview-experience dataset, covering consulting firms with at least 300 reports each. “% hard” is the share of a firm's experiences rated difficult or very difficult; the positive figure is the share rating the overall experience positive.
Firms are split into strategy houses and IT-services players to make the divide visible; firm names appear as recorded in the data. The description of the case format characterizes how these loops run; the quantitative claims are limited to difficulty and sentiment.
Difficulty and sentiment are candidate perceptions, not objective measures, and reflect those who chose to report. Figures are current as of June 2026.