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LBO Returns Attribution in Interviews: Delever, EBITDA, and Multiple

How to attribute LBO returns in PE interviews: debt paydown, EBITDA growth, and multiple expansion, with a worked bridge and verbal structure.

PE · 5 min read

"Where do the returns come from?" is the PE follow-up after MoIC and IRR. Interviewers want a bridge: deleveraging, EBITDA growth, and multiple change. Hand-waving "value creation" fails. Your job is to isolate the levers, admit interactions, and flag when the case needs multiple expansion to clear the hurdle.

The short answer

"I split equity value creation into three buckets. Deleveraging is equity growing as net debt falls. EBITDA growth raises enterprise value at a constant multiple. Multiple expansion or contraction changes EV for the same EBITDA. A clean attribution holds two factors constant while moving one, then reconciles to total equity gain."

The three levers

LeverMechanism
DeleveragingFCF pays down debt; equity claims more of EV
EBITDA growthOps improve; EV rises at a held multiple
Multiple changeExit multiple versus entry multiple

Simple bridge (interview math)

Entry: EBITDA 100, entry multiple 10x → EV 1,000. Debt 600. Equity 400.
Exit: EBITDA 130, exit multiple 10x → EV 1,300. Debt 350. Equity 950.

Total equity gain = 550.

Rough attribution intuition:

  1. Multiple: flat at 10x → $0 from multiple
  2. EBITDA: +30 EBITDA × 10x = +300 EV (equity benefit if debt held constant, then adjust)
  3. Delever: debt down 250 → +250 to equity at constant EV

A proper bridge sequences carefully (which EV you use when). In interviews, show you know interactions exist and avoid double counting. Exact shop formulas vary; clarity beats fake precision.

Entry equity

400

Exit equity

950

Gain

550

How to build it under time

1

Write entry and exit

EBITDA, multiple, EV, net debt, equity at both dates.

2

Hold multiple constant

Recompute exit EV at entry multiple with exit EBITDA.

3

Isolate multiple

Difference between that EV and actual exit EV.

4

Isolate delever

Change in net debt across the hold (equity rises as debt falls).

5

Reconcile

Buckets should explain equity change; state your sequencing method.

Interactions you should name

EBITDA growth and delever are not independent in life: more EBITDA usually means more FCF and more paydown if conversion is real. Multiple expansion on a larger EBITDA base is also a bigger dollar effect than the same turn on entry EBITDA. If you only multiply "delta EBITDA × entry multiple" and "delta multiple × exit EBITDA" without care, you can double count. Say: "I will pick a sequence and stick to it."

What "good" sounds like on a deal

  • "Mostly delever: FCF conversion was strong and we did not need multiple expansion."
  • "Ops-led: EBITDA CAGR did the work; exit multiple was flat to down."
  • "Multiple-dependent: I would haircut this case because exit assumes expansion."

Sponsors dislike returns that only work if the exit multiple expands. In a process, saying you would underwrite flat or compressed exit multiples is often the mature move.

Compare: weak vs strong attribution

"We create value operationally and with leverage."

"About half the equity gain is delever from FCF, a third is EBITDA, and the rest is a half-turn of multiple. I would underwrite flat multiple in downside."

MoIC vs IRR reminder

Attribution usually explains value change (MoIC space). IRR also cares about timing: dividend recaps, early partial exits, and hold length. If cash came out mid-hold, say so. A deal can have mediocre MoIC attribution quality but strong IRR from early distributions, or the reverse.

Revenue growth vs margin vs multiple

When interviewers push past the three-bucket model, split EBITDA growth into volume/price versus margin expansion, then keep multiple separate. Cost takeout that raises EBITDA without multiple help is still ops-led returns. Multiple expansion without ops is a market gift you should not underwrite as base case.

Common traps

  1. Ignoring delever when debt paydown is half the story
  2. Claiming "ops value creation" when the model needs +1x exit multiple
  3. Double counting EBITDA and multiple effects
  4. Mixing IRR timing with MoIC attribution without saying so
  5. Forgetting net debt versus gross debt if cash builds

Worked sequencing note

One clean interview method: (a) compute exit equity at entry multiple with exit EBITDA and exit net debt, (b) attribute the equity change versus entry to EBITDA-at-constant-multiple plus delever, (c) then add the extra equity from actual exit multiple versus entry multiple. Narrate the dollars in that order. If the interviewer uses a different sequence, adapt and keep the same three labels. What matters is that you can explain why the case clears returns without pretending multiple expansion is "operations."

If exit multiple is down a turn while EBITDA and delever are strong, say the ops and FCF story carried the deal despite multiple contraction. That lands better than hiding the multiple move.

30-second verbal

"Returns come from paying down debt, growing EBITDA, and any change in exit versus entry multiple. I bridge equity value by isolating each lever, I flag interactions, and I call out when the case needs multiple expansion to clear the return hurdle."

Related

Returns Attribution for longer form, Walk Me Through an LBO, MoIC vs IRR.

Practice on SheetRank

On Project Apollo, freeze the exit multiple, recompute equity, then unlock multiple expansion and narrate how much of MoIC was market beta versus underwriting.

Practice on SheetRank

Apply what you learned with drills, guided Academy builds, and live deal underwriting.