Return logic
You need to understand what creates MOIC and IRR, not just compute them.
Paper LBO Prep
Paper LBO Interview Prep 2026
Paper LBOs reward structured thinking more than spreadsheet speed. In the 2026 cycle, the candidates who do well are the ones who keep the setup simple, make reasonable assumptions, and narrate the return logic clearly.
01 / UNDERSTAND THE CONTEXT
What a paper LBO is really checking
Paper LBOs are less about spreadsheet craftsmanship and more about whether you understand leverage, debt paydown, entry and exit assumptions, and what drives sponsor returns.
Interviewers also use them to assess calm. A candidate who keeps the framework clean under time pressure usually looks stronger than a candidate who knows more but gets lost in the weeds.
The skills paper LBOs actually reward
The format is simple on purpose.
Reasonable assumptions
A clean set of assumptions beats fake precision.
Mental math control
Fast approximations matter more than perfect decimals.
Structured communication
Interviewers like candidates who explain what they are doing as they go.
02 / BUILD YOUR APPROACH
The paper LBO answer flow
Keep the logic sequential so you do not lose the thread mid-problem.
- 1
Set up sources and uses
Entry EV, debt, equity check, and any obvious fees or adjustments.
- 2
Project a simple operating case
Use clean assumptions for EBITDA growth and cash generation.
- 3
Estimate debt paydown
Translate free cash flow into remaining debt at exit.
- 4
Calculate exit equity value
Apply exit multiple, subtract remaining debt, and compare to the initial equity check.
- 5
Translate to returns
State MOIC and approximate IRR with clean reasoning.
03 / SEE IT IN PRACTICE
Where paper LBOs usually break down
Most misses come from poor structure, not missing one multiplication step.
Assumption setting
What matters
Are your assumptions simple, defensible, and easy to explain?
Better move
Use round assumptions and explain why they are reasonable.
Worse move
Chasing false precision and getting lost in arithmetic.
Narration
What matters
Can the interviewer follow your logic as you work?
Better move
State your setup and return logic clearly as you go.
Worse move
Doing silent math for two minutes and surfacing only at the end.
Return interpretation
What matters
Do you know what the answer means?
Better move
Explain what drove the returns and whether they are attractive.
Worse move
Stop once you have a number with no conclusion.
Paper LBO mistakes that hurt under pressure
These are the misses interviewers see over and over.
- Overcomplicating the setup instead of simplifying.
- Forgetting that debt paydown is a major driver of returns.
- Using assumptions you cannot defend.
- Focusing on arithmetic instead of investment logic.
- Failing to state whether the resulting returns are attractive.
Recommended Resource
The Paper LBO Playbook
The playbook includes timed paper LBO frameworks, worked examples, mental math shortcuts, and return-driver explanations for PE case screens.
- Paper LBO framework and shortcuts
- Worked examples and timed practice prompts
- MOIC-to-IRR mental math shortcuts
- Return bridge and value-driver explanations
Built to help candidates perform under compressed interview timelines.
Frequently asked questions
Do paper LBOs require exact math?
Not usually. Interviewers care more about structure, approximation, and logic than perfect precision.
Should I say assumptions out loud?
Yes. Clear assumptions make your reasoning easier to follow and easier to defend.
What is the biggest paper LBO mistake?
Usually losing sight of the simple return drivers while trying to make the answer look more complex than it needs to be.
Paper LBOs reward clarity more than heroics
If your structure is good, your confidence usually improves automatically.
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