Author: Taylor Warfield, Former Bain Manager and interviewer

Last Updated: March 20, 2026

Strategy case interviews are the core evaluation method for consulting roles at McKinsey, BCG, Bain, and dozens of other firms. In a strategy case interview, you receive a business problem and have 30 to 45 minutes to structure a framework, analyze data, and deliver a recommendation.

 

According to firm recruiting data, fewer than 1% of applicants receive offers at top consulting firms. Having interviewed and coached hundreds of candidates during my time at Bain, I can tell you that the difference between candidates who pass and candidates who fail almost always comes down to how they approach the case, not how smart they are.

 

This guide covers everything you need to know: the types of strategy cases you will face, the step-by-step solving approach that works, the frameworks interviewers actually want to see, common mistakes that get people rejected, and practice questions you can use right now.

 

But first, a quick heads up:

 

McKinsey, BCG, Bain, and other top firms accept less than 1% of applicants every year. If you want to triple your chances of landing interviews and 8x your chances of passing them, watch my free 40-minute training.

 

What Is a Strategy Case Interview?

 

A strategy case interview is a 30 to 45 minute exercise where you and an interviewer work together to solve a business problem. The interviewer presents a scenario, and you are expected to ask clarifying questions, build a framework, analyze quantitative and qualitative information, and deliver a recommendation.

 

These interviews simulate what consultants do every day on real projects. According to McKinsey's careers page, the case interview is designed to assess how you think rather than what you know. The interviewer evaluates four things: your ability to structure ambiguous problems, your analytical reasoning, your business judgment, and how clearly you communicate.

 

Every major consulting firm uses strategy case interviews, including McKinsey, BCG, Bain, Deloitte, Accenture Strategy, Oliver Wyman, L.E.K., Kearney, and Strategy&. Most candidates face four to six case interviews across two rounds before receiving an offer.

 

What Types of Strategy Cases Will You Get?

 

There are six common types of strategy case interviews. In my experience coaching candidates, roughly 70% of all cases fall into just two categories: profitability and market entry. But you need to be ready for all six.

 

Case Type	What It Tests	Example Prompt	Best Framework
Profitability	Revenue/cost diagnosis	A retailer's profits dropped 20% in two years. Why?	Profit tree (Revenue – Costs)
Market Entry	Go/no-go strategic decision	Should a US airline enter the European market?	Market attractiveness + capabilities
M&A	Acquisition evaluation	Should a PE firm acquire a mid-size pharmacy chain?	Target + synergies + valuation
Growth Strategy	Organic/inorganic growth options	A SaaS company wants to double revenue in 3 years. How?	Growth levers (product, market, channel)
Pricing	Optimal price setting	How should a biotech company price a new drug?	Cost-based + value-based + competition
Competitive Response	Defending market position	A low-cost competitor entered our core market. What now?	Competitor analysis + differentiation

 

Let me briefly walk through each type so you know what to expect.

 

What Is a Profitability Case?

 

A profitability case interview asks you to figure out why a company's profits are declining and recommend a fix. You will break profits into revenue and costs, then drill down into each. Revenue might be falling because of lower prices, fewer customers, or a shift in sales mix. Costs might be rising because of raw material inflation, new hires, or operational inefficiency.

 

Based on Glassdoor interview reports, profitability cases appear in roughly 40% of first-round consulting interviews, making them the single most common case type.

 

What Is a Market Entry Case?

 

Market entry cases ask whether a company should enter a new market, geography, or product category. You evaluate market attractiveness (size, growth, margins), competitive intensity, the company's capabilities and fit, and expected profitability.

 

What Is an M&A Case?

 

Merger and acquisition cases evaluate whether a company should buy, merge with, or invest in another business. You assess the target's standalone attractiveness, potential revenue and cost synergies, integration risks, and whether the price makes financial sense.

 

What Is a Growth Strategy Case?

 

Growth strategy cases require you to identify ways for a company to grow revenue or profits. Growth options typically fall into three buckets: growing the existing business (pricing, upselling, retention), entering adjacent markets or launching new products, and inorganic growth through partnerships or acquisitions.

 

What Is a Pricing Case?

 

Pricing cases ask you to determine the optimal price for a product or service. You evaluate three inputs: cost-based pricing (what is the floor based on production costs and target margin), competition-based pricing (what are comparable products selling for), and value-based pricing (what is the customer willing to pay based on the benefit delivered).

 

What Is a Competitive Response Case?

 

Competitive response cases ask you to recommend how a company should react to a competitive threat. This could be a new entrant undercutting on price, a competitor launching a superior product, or an industry shift driven by technology or regulation.

 

How Do You Solve a Strategy Case Interview Step by Step?

 

Every strategy case interview follows the same five-step structure regardless of the case type. I teach this exact process to every candidate I coach, and it works for profitability cases, market entry cases, and everything in between.

 

To make this concrete, I will walk through a real example alongside each step. The prompt: "Your client is a national grocery chain. Over the past two years, same-store revenue has grown 5% but profits have declined 15%. The CEO wants to understand why and what to do about it."

 

Step 1: Understand the Problem

 

Listen carefully to the case prompt, take notes, and restate the objective back to the interviewer. Then ask two to three clarifying questions to make sure you are solving the right problem.

 

Example: "To confirm, our client is a national grocery chain seeing revenue growth of 5% but a 15% profit decline over two years. Our objective is to diagnose the cause and recommend a solution. A few quick questions: Is this decline consistent across all store locations or concentrated in certain regions? And has the company made any major investments or changes in the last two years?"

 

Step 2: Build a Framework

 

Ask for a minute to organize your thoughts, then build a case interview framework with three to four buckets tailored to the specific case. Do not use a memorized framework. The interviewer wants to see that you can think critically about this particular problem.

 

Example framework for the grocery case:

 

• Revenue drivers: Are revenues growing from higher volume or higher prices? What is the mix between product categories?

 

• Cost structure: Have variable costs (COGS, labor) or fixed costs (rent, capex) increased? By how much?

 

• External factors: Have competitors changed their pricing or strategy? Are there supply chain or regulatory shifts?

 

• Strategic changes: Has the client made investments, launched new initiatives, or changed its product assortment?

 

Notice how this framework is MECE: the buckets do not overlap and together they cover all the possible drivers of a profit decline when revenue is growing.

 

Step 3: Develop a Hypothesis

 

Before diving into analysis, state an initial hypothesis. This gives your analysis direction and shows the interviewer you can think like a consultant. Your hypothesis does not need to be correct. It just needs to be logical and testable.

 

Example: "My initial hypothesis is that costs have risen faster than revenue, likely driven by either increased labor costs or a shift toward lower-margin products. I would like to start by examining the cost structure to test this."

 

Step 4: Analyze the Data

 

Work through your framework bucket by bucket, asking the interviewer for data at each step. Perform calculations carefully on paper. After each piece of analysis, connect your finding back to the case objective.

 

Example: The interviewer tells you that COGS as a percentage of revenue increased from 65% to 72% over the two-year period. You calculate: on $2 billion in revenue, that 7-percentage-point increase equals $140 million in additional costs, more than explaining the entire profit decline. You then ask: "What is driving the COGS increase? Is it supplier price increases, a shift in product mix, or higher shrinkage and waste?"

 

Step 5: Deliver a Recommendation

 

Wrap up with a clear, structured recommendation. Use the classic consulting format: lead with the answer, support it with two to three reasons backed by data, then suggest next steps.

 

Example: "I recommend the client focus on renegotiating supplier contracts and rationalizing its product assortment. First, COGS increased by 7 percentage points, costing roughly $140 million per year. Second, the product mix has shifted toward fresh and organic items with 10% lower margins. Third, the client has not renegotiated its top-10 supplier contracts in over three years. For next steps, I would want to benchmark the client's procurement costs against industry averages and identify the specific product categories where margin erosion is worst."

 

What Are the Best Frameworks for Strategy Case Interviews?

 

The best frameworks for strategy case interviews are not the textbook models you learned in business school. In my experience as a Bain interviewer, the frameworks that impress interviewers are the ones candidates build from scratch, tailored to the specific case. That said, there are a few core structures every candidate should know.

 

If you want a complete guide to every case interview framework, I cover all of them in detail in a separate article. Here are the ones you will use most often in strategy cases.

 

Framework	When to Use It	Key Components
Profitability Tree	Profit is declining or underperforming	Revenue (price × volume) minus Costs (variable + fixed)
Market Entry	Should we enter a new market/geography?	Market attractiveness, competition, capabilities, profitability
M&A Evaluation	Should we acquire or merge with a target?	Target quality, synergies, integration risks, valuation
Growth Levers	How can we grow revenue or profit?	Existing business optimization, new markets/products, acquisitions
Pricing	How should we price a product or service?	Cost floor, competitor benchmarks, customer willingness to pay

 

A critical skill is knowing when to customize. For example, if you get a profitability case for a subscription business, your revenue breakdown should be: number of subscribers multiplied by average revenue per user, not just price multiplied by quantity. Tailoring the framework to the client's business model is what separates top candidates from average ones.

 

You should also be familiar with issue trees, which let you visually break a problem into sub-problems. Issue trees are especially helpful for complex cases where you need to drill down into a specific area.

 

If you want to learn how to build custom frameworks quickly and confidently, my case interview course walks you through proven strategies for every case type in as little as 7 days.

 

What Is the Difference Between Interviewer-Led and Candidate-Led Strategy Cases?

 

Strategy case interviews come in two formats: interviewer-led and candidate-led. Knowing which format you will face changes how you should prepare.

 

Interviewer-led cases are the format used by McKinsey. The interviewer controls the direction of the case, telling you which area to explore next and presenting specific questions or data at each step. Your job is to answer each question as clearly and insightfully as possible, then connect your finding back to the broader case objective.

 

Candidate-led cases are the format used by BCG, Bain, and most other firms including Strategy& and Deloitte. You drive the case from start to finish. After presenting your framework, you decide which area to explore first, ask the interviewer for specific data, and proactively move the case forward. The interviewer acts more like a client who answers your questions.

 

According to a 2025 survey of consulting recruiters, roughly 60% of firms use candidate-led formats and 40% use interviewer-led formats. The analytical skills are the same either way. The difference is in how much initiative you need to show.

 

If you are preparing for candidate-led cases, practice driving the conversation: choosing where to go next, asking for specific data, and summarizing findings before transitioning. If you are preparing for interviewer-led cases, practice answering targeted questions quickly and always tying your answer back to the big picture.

 

What Are the Most Common Strategy Case Interview Mistakes?

 

Having conducted over 100 case interviews as a Bain interviewer, I saw the same mistakes again and again. Here are the six that get candidates rejected most often.

 

1. Using a memorized framework. Interviewers can tell instantly. If your framework for a pricing case looks identical to your framework for a market entry case, you will fail. Build a framework tailored to the specific case every time.

 

2. Jumping into math without a structure. When asked a quantitative question, candidates often start calculating immediately. Instead, take 10 seconds to lay out your approach first. Say what you are going to calculate and why before you start doing the math.

 

3. Failing to connect analysis to the objective. Every piece of analysis should end with a "so what" statement. If you calculate that the client's market share dropped from 25% to 18%, the next sentence should explain what that means for the case, not just move on to the next question.

 

4. Not leading the case (in candidate-led formats). Many candidates wait for the interviewer to tell them what to do. In a candidate-led case, silence means you are expected to suggest the next step. Practice saying things like, "I would like to explore the cost side now. Can you tell me how the client's cost structure has changed?"

 

5. Giving a wishy-washy recommendation. "It depends" is not a recommendation. Pick a clear answer, support it with two to three reasons, and acknowledge the risks. Interviewers want to see decisiveness.

 

6. Ignoring the interviewer's hints. When an interviewer says "That is interesting, but I think we should look at costs," they are redirecting you. Follow their lead. Fighting the interviewer is one of the quickest ways to fail.

 

How Should You Prepare for a Strategy Case Interview?

 

Most successful candidates spend two to four weeks actively preparing for strategy case interviews. Based on coaching data from hundreds of candidates, those who practiced 15 to 25 full cases before their interview had the highest offer rates.

 

Here is the prep plan I recommend.

 

Week 1: Learn the fundamentals. Study case interview structure, frameworks, and math techniques. Read this guide, study case interview frameworks, and watch two to three video walkthroughs of real cases online.

 

Week 2: Practice solo. Work through three to five cases by yourself to build comfort with structuring and mental math. Use case interview examples from our practice library or free cases published by consulting firms on their websites.

 

Weeks 3 and 4: Practice with partners. Simulate real interview conditions by casing with a partner. Aim for one to two cases per day. After each case, spend 15 to 20 minutes on detailed feedback. Focus on one improvement area at a time rather than trying to fix everything at once.

 

If you hit a plateau with peer practice, consider case interview coaching. Practicing with a former interviewer gives you expert-level feedback that peers often miss, and candidates who use coaching typically improve 5x faster.

 

In the final days before your interview, do no more than one case per day. You want to stay sharp without burning out. Case fatigue before interview day is a real problem.

 

What Strategy Case Interview Practice Questions Should You Use?

 

The best way to prepare is to practice with realistic case prompts. Here are 12 strategy case interview questions organized by type. Use these with a partner, or work through them solo by building a framework and outlining your approach for each one.

 

Profitability

 

• A national restaurant chain has seen profits fall 25% over three years despite opening 50 new locations. What is going on?

 

• A software company's revenue grew 30% last year, but profit margins dropped from 20% to 12%. Why?

 

Market Entry

 

• A European luxury automaker is considering entering the Indian market. Should they?

 

• A US health insurance company wants to expand into pet insurance. Is this a good idea?

 

M&A

 

• A private equity firm is evaluating whether to acquire a chain of urgent care clinics. What should they consider?

 

• A large bank is considering acquiring a fintech startup that has 2 million users but is not yet profitable. Should they proceed?

 

Growth Strategy

 

• An e-commerce company wants to double its revenue from $500 million to $1 billion in three years. What growth strategies should they pursue?

 

• A regional hospital system wants to grow revenue by 20% without building new facilities. How?

 

Pricing

 

• A pharmaceutical company is launching a new drug that reduces hospital readmissions by 40%. How should they price it?

 

• A ride-sharing company wants to introduce a premium tier. What price point should they target?

 

Competitive Response

 

• Your client, a mid-size airline, just learned that a low-cost carrier is launching 10 routes that overlap with its most profitable corridors. What should they do?

 

• A leading food delivery platform is losing market share to a new competitor offering zero delivery fees. How should they respond?

 

For more practice cases including full walkthroughs with solutions, check out our case interview examples and practice page.

 

Do Non-Consulting Companies Use Strategy Case Interviews?

 

Yes. Strategy case interviews are no longer limited to consulting firms. Tech companies like Google, Amazon, and Meta use them for strategy and operations roles. Financial institutions like Capital One and Goldman Sachs use them for strategy analyst positions. And many Fortune 500 companies use them for in-house strategy teams.

 

According to LinkedIn job posting data, demand for strategy and operations roles at tech companies grew over 35% between 2022 and 2025. These roles often use case interviews that are similar to consulting cases but more specific to the company's actual business problems.

 

The core skills tested are the same: structured thinking, quantitative analysis, and clear communication. The main difference is that tech and corporate strategy cases tend to be more narrowly focused on the company's industry and are sometimes less formal in structure. If you can solve a consulting case, you can handle a corporate strategy case with a little company-specific research.

 

Frequently Asked Questions

 

How Long Is a Strategy Case Interview?

 

Most strategy case interviews last 30 to 45 minutes. McKinsey interviews run about 25 to 30 minutes for the case portion, while BCG and Bain cases typically take 30 to 40 minutes. The remaining time in the interview slot is usually reserved for fit or behavioral questions.

 

How Many Strategy Case Interviews Will I Have?

 

Expect four to six case interviews across two rounds. First-round interviews at most firms include two back-to-back cases. If you pass, the final round typically includes two to three additional cases with more senior interviewers, often at the Partner level.

 

Can I Use Memorized Frameworks in a Strategy Case Interview?

 

No. Interviewers can immediately spot a memorized framework, and it signals that you cannot think critically. Instead, learn the building blocks of common frameworks and combine them in real time to create a structure tailored to the specific case. This is what top candidates do.

 

What Should I Do If I Get Stuck During a Strategy Case?

 

First, take a breath and summarize what you know so far. Saying "Let me step back and think about what we have learned" buys you time and shows composure. Then, revisit your framework. Look at which areas you have not yet explored. If you are truly stuck, it is perfectly acceptable to ask the interviewer, "Could you point me in the right direction?" They would rather help you than watch you flounder.

 

How Is a Strategy Case Different from a Regular Case Interview?

 

In practice, there is very little difference. The term "strategy case interview" is used broadly to describe the standard case interview format at consulting firms. All case interviews are fundamentally about testing strategic thinking. Some people use the term to distinguish consulting cases from operational or implementation cases, but the preparation approach is the same.

 

Do I Need Prior Business Experience to Pass a Strategy Case Interview?

 

No. Consulting firms hire from all academic backgrounds, including STEM, humanities, and social sciences. According to McKinsey's own data, roughly 50% of their consultants come from non-business undergraduate degrees. What matters is your ability to structure problems, think logically, and communicate clearly. These are skills anyone can learn with the right preparation.

 

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