What Interviewers Are Testing
Interviewers want to see whether you can move from transaction setup to investor returns coherently. They are not asking for every spreadsheet line. They are testing if you understand what drives IRR and MOIC, and where downside usually appears in a leveraged structure.
A credible answer should show four things: purchase structure discipline, operating forecast realism, debt schedule logic, and equity return interpretation at exit.
How to Structure the Answer
- Transaction setup: define purchase price, enterprise value, and sources and uses.
- Operating forecast: project revenue, margins, capex, and working capital over hold period.
- Debt model: build tranches, interest, mandatory amortization, and optional paydown using free cash flow.
- Exit assumptions: set exit year EBITDA and exit multiple to derive enterprise value at sale.
- Investor returns: bridge to equity proceeds and calculate MOIC and IRR.
Worked Example Answer
"I’d start by defining transaction assumptions: entry enterprise value, existing debt treatment, and full sources-and-uses to determine required equity check. Then I project core operating assumptions over five years including EBITDA progression, capex, and working capital needs.
Next, I build the debt schedule by tranche and link interest and amortization to projected balances. Excess free cash flow is used for optional debt paydown according to priority. That allows me to track deleveraging through the hold period.
At exit, I apply an exit multiple to year-five EBITDA to estimate enterprise value, subtract net debt, and derive equity value. Comparing equity value at exit to initial equity invested gives MOIC and IRR. I then stress-test returns under lower growth and lower exit multiple scenarios to evaluate downside resilience."
How to Calculate Return Driver Quality
- Setup score: sources and uses are clear and balanced.
- Operating score: assumptions are realistic and internally consistent.
- Deleveraging score: debt paydown mechanics are credible.
- Exit score: return math and sensitivity are explained cleanly.
Many candidates over-focus on entry multiple and under-explain debt paydown. In practice, deleveraging is often the cleanest return engine to communicate.
Common Mistakes
Mistake: jumping straight to IRR without explaining sources and uses.
Fix: always start with transaction structure and equity check sizing.
Mistake: ignoring debt amortization hierarchy.
Fix: mention debt tranches and repayment priority clearly.
Mistake: single-case output only.
Fix: include at least one downside case with multiple compression or margin pressure.
Frequently Asked Questions
What is the first step in an LBO model answer?
Start with purchase price and sources and uses so interviewers see transaction structure discipline.
How many return drivers should I mention?
At minimum mention EBITDA growth, multiple expansion or contraction, and debt paydown.
Do I need to explain debt tranches?
Yes at a high level. Show you understand seniority, pricing, and amortization differences.
What IRR range sounds realistic in interviews?
Context matters by cycle and asset quality, but many interview cases test around mid-teens to low-20s outcomes.
How do I answer if asked about downside cases?
Discuss margin pressure, slower growth, exit multiple compression, and debt covenant stress.