LBO Interview Questions: 15 Q&As With Model Answers

LBO interview questions test whether you understand how a private equity firm buys a company with debt, holds it, and sells it for a profit, not whether you can build a full model on the spot. Interviewers move from concept ("what is an LBO?") to mechanics (sources and uses, debt tranches, cash sweep) to math (IRR and MOIC rules of thumb), and the strongest candidates answer each in under 90 seconds. Below are the most common LBO interview questions, grouped by theme, with model answers grounded in the same worked example: $100 million of EBITDA bought at 10x with 60 percent debt, exiting at 9x five years later.

What is an LBO?

A leveraged buyout is the acquisition of a company financed mostly with borrowed money rather than cash. The model answer: a private equity firm acquires a company using debt and equity, operates it for several years, then sells it. The math works because leverage shrinks the sponsor's upfront equity check, so any gain in enterprise value lands on a smaller base. For the full six-step version, see walk me through an LBO.

Why does a PE firm use debt instead of paying cash?

Debt lowers the equity tied up in a single deal, which raises the return on that equity if the company performs. It's also cheaper than equity and the interest is tax-deductible. The tradeoff is risk: fixed interest payments don't flex down in a bad year, so overleveraging a cyclical business can force a default an all-equity purchase would have survived.

What makes a good LBO candidate?

A good LBO candidate has stable, predictable cash flow, because that cash flow services and repays the debt. The core traits are stable cash flows, low ongoing capital expenditure, a realistic exit path, and a reasonable purchase price. Cyclical, capital-intensive, or cash-burning businesses make poor candidates because one weak year can leave them unable to cover interest.

What makes a bad LBO candidate?

A bad LBO candidate has volatile or unpredictable cash flow relative to the debt load it would need to carry. Early-stage or high-growth companies that burn cash are typically poor fits, since there is no free cash flow to pay down debt. Highly cyclical industries and businesses with heavy, lumpy capital expenditure are also weak candidates, since a downturn can force a covenant breach.

What is the sources and uses table?

The sources and uses table lays out where the deal's financing comes from (sources: debt tranches, sponsor equity, rollover equity) against what it pays for (uses: purchase price, refinanced debt, transaction fees). Total sources must equal total uses to the dollar; the sponsor's equity check is the plug. See sources and uses of funds for line items and a worked example.

What debt tranches are used in an LBO?

The interview-level answer groups LBO debt into senior debt and junior (subordinated or mezzanine) debt, sitting above sponsor equity. Senior debt, often a revolver plus a term loan, has first claim on collateral and cash flow, so it carries the lowest rate. Junior debt sits below senior debt in repayment priority and costs more. Corporate Finance Institute notes sponsors will borrow as much as they can, sometimes up to 70 to 80 percent of the purchase price. See LBO capital structure for the full tranche breakdown.

What is a cash sweep and why does it matter?

A cash sweep directs a company's excess free cash flow, after mandatory interest and amortization, toward prepaying debt ahead of schedule. It's the optional (and often partly mandatory) prepayment of debt using leftover cash before the scheduled repayment date. It matters because faster deleveraging means less debt at exit, so a larger slice of enterprise value flows to the sponsor. Full mechanics are in cash sweep in an LBO.

How does an LBO generate returns?

Every dollar of LBO return traces to one of three drivers, and naming all three while flagging which is least reliable separates a strong answer from a memorized one. Debt paydown and EBITDA growth are within the sponsor's control; multiple expansion is not.

• Debt paydown (deleveraging): free cash flow reduces debt, so equity captures more of a roughly stable enterprise value.
• EBITDA growth: organic growth or add-on acquisitions increase value at any given multiple.
• Multiple expansion: exiting above the entry multiple, the least reliable driver since it depends on market conditions at exit, not the sponsor's operating decisions.

What is the difference between IRR and MOIC?

MOIC is exit equity divided by entry equity, a "how many times did my money grow" number with no time component. IRR is the annualized rate of return, so the same MOIC over a shorter hold produces a higher IRR. The quick conversion at a 5-year hold: a 2.0x MOIC is roughly 15 percent IRR, and a 3.0x is roughly 25 percent IRR. For more benchmark pairs, see IRR vs MOIC.

MOIC = Exit Equity / Entry Equity, and IRR = MOIC^(1/n) − 1

Can you walk through a full LBO example?

Yes, and interviewers expect you to run the numbers out loud. Using the standard example: a sponsor buys a company with $100 million of EBITDA at a 10x entry multiple, a $1,000 million enterprise value. Debt funds 60 percent, so $600 million of debt and a $400 million equity check. Over a 5-year hold, EBITDA grows to $150 million and $250 million of debt gets repaid. Exiting at 9x EBITDA gives a $1,350 million exit enterprise value; subtract $350 million of remaining debt and exit equity is $1,000 million, a 2.5x MOIC on the $400 million entry equity, roughly 20 percent IRR.

What happens if the exit multiple is lower than the entry multiple?

The deal experiences multiple contraction, which drags on returns even if EBITDA grew. In the worked example, exiting at 9x instead of the entry 10x is contraction, yet the deal still clears a 2.5x MOIC because debt paydown and EBITDA growth more than offset it. A conservative model often sets the exit multiple equal to or below the entry multiple, so the return has to come from operating performance rather than a friendlier market at exit.

How much debt should go into an LBO?

The right amount is sized off the target's EBITDA and its capacity to service interest and principal, not a fixed rule. Sponsors size leverage as a multiple of EBITDA, commonly 4x to 6x for a stable business, or as a percentage of the purchase price, sometimes 70 to 80 percent per Corporate Finance Institute. More predictable cash flow supports more debt, lowering the equity check and raising the potential return.

Why would a sponsor prefer a shorter hold period?

IRR is annualized, so a longer hold spreads the same total gain over more years and lowers the rate. A 3.0x MOIC over 3 years is a far stronger IRR than the same 3.0x over 7 years. Sponsors often exit early if a strategic buyer appears or growth arrived faster than the base case.

What risk do sponsors watch for with high leverage?

The main risk is a covenant breach: LBO credit agreements set maximum leverage ratios and minimum interest coverage ratios. If EBITDA falls short of the underwriting case, the company can breach a covenant, triggering a default or a renegotiation on worse terms. This is why stable cash flow matters more in candidate selection than growth potential alone.

How do you build an LBO model, at a high level?

An LBO model is built in the order the deal actually happens: purchase price and sources and uses first, then an operating forecast, then a debt schedule with a cash sweep, then exit and returns. It's the same order a mental "paper LBO" walkthrough follows, just with a spreadsheet doing the arithmetic. For the no-Excel version, see how to solve a paper LBO; for the full spreadsheet build, see LBO model explained.

Sources

• Breaking Into Wall Street, "LBO Model Interview Questions": https://breakingintowallstreet.com/kb/leveraged-buyouts-and-lbo-models/lbo-interview-questions/ (checked July 2026)
• Wall Street Prep, "LBO Interview Questions": https://www.wallstreetprep.com/knowledge/lbo-interview-questions/ (checked July 2026)
• Wall Street Prep, "LBO Model": https://www.wallstreetprep.com/knowledge/lbo-model/ (checked July 2026)
• Corporate Finance Institute, "Leveraged Buyout (LBO)": https://corporatefinanceinstitute.com/resources/valuation/leveraged-buyout-lbo/ (checked July 2026)