Valuation Case Interview: Step-By-Step Guide (2026)
Author: Taylor Warfield, Former Bain Manager and interviewer
Last Updated: May 28, 2026

A valuation case interview asks you to estimate what a company, asset, or investment is worth. You are tested on structured thinking, quick math, and business judgment, not on building a full financial model. The good news is that the math is simpler than most candidates fear.
By the end of this article, you'll know exactly what a valuation case is, the 8 steps to solve one, the two formulas you actually need, and how to walk through three full examples with the math shown.
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 Changed in 2026?
This guide now shows the actual math behind a valuation, not just the final numbers. We added the two formulas consultants rely on, guidance on which discount rate to assume, a methods comparison table, and rebuilt all three examples so you can follow every calculation.
What Is a Valuation Case Interview?
A valuation case interview is a case where you estimate the value of a company, asset, or investment using financial reasoning and clear communication. It is common in management consulting, private equity, investment banking, and corporate finance, where firms need to decide whether to invest, acquire, or sell.
In a valuation case, you are given a business scenario and some financial data. You pick a valuation method, make a few assumptions, run the numbers, and recommend a value or a value range.
Interviewers care more about how you think than about getting an exact figure. They want to see that you can isolate the right driver, justify your assumptions, and connect the number back to a business decision.
A strong valuation case answer shows three things:
- You can tell which data matters and which data is noise
- You can pick and apply the right method for the situation
- You can explain your assumptions and recommendation with confidence
Which Firms Ask Valuation Case Interviews, and When?
Valuation cases show up most often in interviews involving deals: acquisitions, investments, and divestitures. They appear at strategy firms, Big Four advisory teams, private equity, and dedicated valuation groups.
Here is where you are most likely to face one:
- Strategy consulting firms running M&A cases, due diligence, or growth projects
- Big Four advisory and dedicated valuation groups, where the exercise can be a one-hour group case or a financial model build
- Private equity firms, where private equity case interviews hinge on whether a target is worth acquiring
- Corporate finance and investment banking roles, where accurate valuation drives every decision
Keep in mind that the depth changes by firm. At a consulting firm, valuation is usually one part of a larger case and the math is kept simple. At a finance role or a valuation group, you may be asked to build a fuller model and defend it in detail.
Consulting Valuation Case vs Finance Valuation Case
The two look similar but test different things. A consulting case rewards structure and judgment. A finance case rewards technical depth and modeling accuracy.
Factor |
Consulting Case |
Finance / Big Four Case |
Goal |
Estimate a reasonable value |
Build a defensible model |
Math depth |
Simplified, mental math |
Detailed, often in Excel |
Time |
5 to 15 minutes |
30 to 60 minutes or more |
What matters most |
Structure and judgment |
Technical accuracy |
How Do You Solve a Valuation Case Interview?
There are eight steps to solve a valuation case interview. Unlike a typical case, you do not need a custom framework for each one. The same eight steps work for almost any valuation.
Your interviewer may spend more time on some steps and skip others. Use the steps as a checklist, not a rigid script.
1. Understand the Objective
Start by clarifying exactly what you are valuing and why. Are you valuing the whole company, a single business unit, or one asset? Is the goal to set an acquisition price, raise funding, or decide whether to invest?
This one question shapes everything that follows. A clear objective tells you which method to use and which data to ask for.
2. Gather Information
Next, ask for the data that drives value. This usually means revenue, profit margins, growth rate, and the assets or cash flows the business generates.
Also ask about the market and the competition. A company growing 30% a year in a hot market is worth far more than the same company in a shrinking one.
3. Select a Valuation Method
Now pick the method that fits the company and the data you have. For a stable business with predictable profits, a discounted cash flow approach works well. When you have data on similar companies or recent deals, a multiples approach is faster and just as credible.
State which method you are using and why before you start calculating. That signals judgment, which is exactly what interviewers grade.
4. Perform the Calculation
Apply your chosen method to the numbers. Talk through your math out loud so the interviewer can follow your logic and catch you before a small error becomes a big one.
Strong, fast arithmetic matters here. Sloppy math is one of the most common reasons candidates lose valuation cases.
5. Perform Sensitivity Analysis
Once you have a number, test how much it moves when your assumptions change. What happens to the value if growth is 5% lower, or the discount rate is 3% higher?
This shows you understand that a valuation is an estimate, not a fact. It also helps you present a value range instead of a single shaky number.
6. Check for Reasonableness
Sanity check your answer against the real world. Compare it to similar companies, recent deals, or industry benchmarks before you commit to it.
If your number looks wildly high or low, find out why. A quick benchmark catches most major mistakes, like a misplaced zero or an unrealistic growth rate.
7. Present Your Findings
State your recommendation first, then your reasoning. Lead with the value or value range, name the method you used, and call out the one or two assumptions that mattered most.
Be honest about the limits of your estimate. Acknowledging uncertainty builds trust and is exactly how real consultants present to clients.
8. Discuss Strategic Implications
Finish by tying the number back to the business decision. If a target is undervalued, say whether the client should move quickly or renegotiate.
This is where you stand out. Connecting the valuation to growth, risk, or deal strategy shows you think like an advisor, not just a calculator.
What Are the Main Valuation Methods?
There are three main valuation methods used in case interviews: discounted cash flow, comparable company analysis, and precedent transaction analysis. A few asset-based methods round out the list for special situations.
You do not need to master all of them. Knowing the first three well covers the vast majority of cases. Here is how they compare:
Method |
How It Works |
Best Used When |
Discounted Cash Flow (DCF) |
Estimates value from future cash flows discounted to today |
The company has stable, predictable cash flows |
Comparable Company Analysis |
Applies the market multiples of similar public firms |
Data on similar listed companies is available |
Precedent Transactions |
Uses multiples paid in recent comparable deals |
Recent acquisitions of similar firms exist |
Asset-Based / Book Value |
Subtracts liabilities from the value of assets |
The firm is asset-heavy, such as real estate or shipping |
Liquidation Value |
Estimates proceeds if assets were sold off |
The company is distressed or shutting down |
Market capitalization, replacement cost, and similar approaches exist too, but they rarely appear in case interviews. Focus your prep on the top three.
How Do You Calculate a Valuation in a Case Interview?
In a case interview, you value a company with one of two quick methods: a simplified discounted cash flow or a multiple. Both can be done with mental math in under a minute. Sharp case interview math is what makes the difference here.
How Do You Do a Simplified DCF?
In a case, you skip the full multi-year model and use the perpetuity formula. It treats the company like an investment that pays the same cash flow forever:
Value = Annual Cash Flow / Discount Rate
Suppose a company generates $10 million in cash flow per year and you use a 10% discount rate. The value is $10 million divided by 0.10, which equals $100 million.
If the cash flow grows at a steady rate forever, subtract that growth rate from the discount rate in the denominator. This is the growing perpetuity, and it is the same logic behind net present value:
Value = Annual Cash Flow / (Discount Rate − Growth Rate)
Take the same $10 million in cash flow, a 10% discount rate, and 3% annual growth. The value is $10 million divided by 0.07, which equals about $143 million. The steady growth nearly doubled the value, which is why interviewers love to test it.
How Do You Value a Company Using Multiples?
The multiple method values a company by applying the going rate that similar companies trade at. You multiply a financial metric by an industry multiple:
Value = Financial Metric × Industry Multiple
If a company has $20 million in EBITDA and similar firms trade at 8 times EBITDA, the company is worth roughly $160 million. The most common multiples are EV/EBITDA, price-to-earnings, and price-to-revenue.
Here are rough benchmark multiples you can assume if the interviewer does not give you one:
Multiple |
Typical Range |
EV / EBITDA |
8 to 12 times for most mature firms |
Price / Earnings (P/E) |
15 to 20 times for stable companies |
Price / Revenue |
1 to 3 times, higher for fast-growing tech |
What Discount Rate Should You Use?
If the interviewer does not give you a discount rate, ask first. If you have to assume one, 10% is the safe default for most case interviews.
Adjust the rate to match risk. Use a lower rate of 3% to 8% for safe, stable businesses, and a higher rate of 15% to 25% for risky startups. State your assumption clearly before you calculate so the interviewer can follow your logic.
Valuation Case Interview Examples
The three examples below show how the steps and formulas work together. Each one walks through the math so you can see exactly how the numbers come out.
Valuation Case Interview Example #1
Your client, a private equity firm, is considering investing in an e-commerce startup that connects local artisans with customers buying handmade products. Your task is to value the startup and recommend a range.
The startup shares the following figures from the past year:
- Net income: $1 million
- Projected growth rate: 25%
- Operating expenses: $2 million
- Estimated discount rate: 15%
How to solve it: use two methods and triangulate. Start with a multiple. Comparable e-commerce platforms trade at roughly 7 to 8 times net income, so $1 million times 7.5 gives a value near $7.5 million.
Now run a simplified DCF. Because the 25% growth rate is above the discount rate, you cannot use a plain perpetuity. Instead, project the cash flows for the high-growth years and add a terminal value, which lands around $8.2 million.
Check reasonableness against recent e-commerce deals, then recommend a range of $7.5 million to $8.2 million. Emphasize the platform's unique position connecting artisans with customers and its room to grow.
Valuation Case Interview Example #2
Your client is a logistics technology startup seeking venture funding to expand. Their software gives companies real-time visibility into inventory and orders. Your task is to value the company and recommend a range for the funding round.
The startup shares the following figures:
- Annual revenue: $2.5 million
- Projected growth rate: 30%
- Net income: $800,000
- Estimated discount rate: 20%
How to solve it: software companies are usually valued on revenue, so start there. Similar early-stage software firms trade at about 3 times revenue, so $2.5 million times 3 gives roughly $7.5 million.
Cross-check with a DCF. Projecting the cash flows over the high-growth years and discounting at 20%, then adding a terminal value, produces a value near $6.8 million.
Recommend a range of $6.8 million to $7.5 million. Note that the final number will depend on the company's technology, growth, and the negotiation with investors.
Valuation Case Interview Example #3
Your client is a manufacturing company that wants to acquire a competitor with a similar product line and a strong distribution network. Your task is to value the target and recommend an offer price.
You collect the following data:
- Target company revenue: $60 million
- EBITDA margin: 15%
- Industry average EV/EBITDA multiple: 8
How to solve it: first find EBITDA. A 15% margin on $60 million in revenue is $9 million in EBITDA. Applying the industry multiple, $9 million times 8 gives a comparable company value of $72 million.
Cross-check with precedent transactions. Recent deals for similar manufacturers were done at about 7.5 times EBITDA, so $9 million times 7.5 gives roughly $68 million. This kind of triangulation also appears in growth strategy case interviews when sizing a deal.
Recommend an offer near the midpoint, around $70 million. Emphasize that the acquisition fits the client's growth plans and adds a stronger distribution network.
What Mistakes Should You Avoid in a Valuation Case Interview?
The most common valuation case mistakes come from rushing into the math without structure. Avoid the five below and you will already be ahead of most candidates.
Mistake #1: Jumping Straight to a Method
Many candidates name a method before they understand the objective. Clarify what you are valuing and why first, then choose your approach.
Mistake #2: Aiming for False Precision
A valuation is an estimate, not an exact answer. Use round numbers and clean assumptions so you can move fast and avoid arithmetic errors.
Mistake #3: Forgetting to Sanity Check
An unchecked number is a trap. Always benchmark your result against comparable companies or recent deals before you present it.
Mistake #4: Doing Silent Math
If you go quiet and scribble, the interviewer cannot follow you or help you. Narrate every calculation so your logic is visible.
Mistake #5: Stopping at the Number
The value is only half the answer. Tie it back to the decision the client is trying to make, or you leave the most valuable points on the table.
How Do You Prepare for a Valuation Case Interview?
To prepare for a valuation case interview, drill the two core formulas until they are automatic and practice talking through your math out loud. Combine quick arithmetic with business judgment and you will handle almost any valuation.
A few high-impact prep steps:
- Memorize the perpetuity and multiple formulas cold
- Practice mental math so you can divide and multiply quickly
- Learn rough benchmark multiples and discount rates
- Work through full cases out loud, not just on paper
- Always clarify the objective before you calculate
Learning cases on your own can take months. If you want a faster path, my case interview course walks you through valuation and every other case type in as little as 7 days.
Frequently Asked Questions
What is a valuation case interview?
A valuation case interview is a case where you estimate the value of a company, asset, or investment using financial reasoning and clear communication. It tests structured thinking, quick math, and business judgment. These cases are common in consulting, private equity, investment banking, and corporate finance.
How do you calculate a DCF in a case interview?
In a case interview, use the perpetuity formula: value equals annual cash flow divided by the discount rate. If the cash flow grows steadily, subtract the growth rate from the discount rate in the denominator. For example, $10 million in cash flow at a 10% discount rate is worth $100 million.
What discount rate should you use in a valuation case?
Ask the interviewer first. If you must assume a rate, 10% is the standard default. Use a lower rate of 3% to 8% for safe, stable businesses and a higher rate of 15% to 25% for risky startups.
What are the main valuation methods?
The three main methods are discounted cash flow, comparable company analysis, and precedent transaction analysis. Asset-based and liquidation value methods are used for asset-heavy or distressed companies. Knowing the first three well covers most case interviews.
What is the difference between DCF and comparable company analysis?
DCF values a company based on its own future cash flows discounted to today. Comparable company analysis values it by applying the market multiples of similar firms. DCF reflects intrinsic value, while multiples reflect what the market is paying right now.
Do consulting firms ask valuation cases?
Yes, though usually as one part of a larger case rather than a full model. Valuation comes up most in deal-related cases such as acquisitions, investments, and due diligence. The math is kept simple and the focus is on structure and judgment.
How long is a valuation case interview?
In consulting, the valuation portion usually takes 5 to 15 minutes within a longer case. At finance roles and Big Four valuation groups, a dedicated valuation case can run 30 to 60 minutes or more and may involve building a model.
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