TL;DR. A leveraged buyout is the acquisition of a company funded mostly with borrowed money, where the target’s own cash flows pay the debt down. Private-equity firms typically put up 30%–50% equity and finance the rest with senior loans, high-yield bonds, and mezzanine — then aim to harvest a 2x–3x money multiple over four to seven years. The math is unforgiving: cash flow has to clear the interest bill, or covenants and refinancings get ugly fast.
What is a leveraged buyout?
A leveraged buyout (LBO) is a deal in which a financial sponsor — usually a private-equity fund — acquires a company by combining a relatively thin slice of equity with a much larger slice of debt. The debt is borrowed against the target’s own balance sheet and serviced by the target’s cash flow, not the sponsor’s. After closing, the company has a new capital structure, a new owner, and a clock: deliver enough cash to amortize debt and lift enterprise value before the sponsor exits.
The mechanic is old. The first deals widely recognised as LBOs date to the 1960s and 1970s, and the genre went mainstream after the 1982 Gibson Greetings deal, where investors put up roughly $1 million of equity into an $80 million purchase and exited at a $290 million IPO within 16 months (background). The 2025 take-private of Electronic Arts at $55 billion, led by Saudi Arabia’s Public Investment Fund, Silver Lake, and Affinity Partners, is now the largest LBO on record (reference).
The capital stack: where the money comes from
Every LBO is funded by stacking layers of capital with different risk, return, and seniority. Senior secured lenders sit at the top of the stack — they get paid first and accept the lowest yield. Equity sits at the bottom — last in line, but holding the upside if things work. In between sits a band of “junior” debt: high-yield bonds, second-lien loans, and mezzanine.
Across deals, debt usually funds 50%–90% of the purchase price (range). A typical mid-2020s buyout looks roughly like this:
| Layer | % of capital | Indicative coupon | Seniority & security |
|---|---|---|---|
| Revolving credit facility | ~0%–5% (undrawn) | SOFR + 200–350 bps | First lien, super-senior |
| Term Loan B (senior secured) | 40%–55% | SOFR + 300–500 bps | First lien on assets |
| High-yield notes / 2nd lien | 10%–20% | 7%–10% fixed | Subordinated to TLB |
| Mezzanine / PIK | 0%–10% | 10%–14% (often PIK) | Junior, sometimes warrants |
| Sponsor equity | 30%–50% | Residual | Last in line, full upside |
The thicker the equity slice, the safer the deal — and the lower the equity IRR if everything goes right. Sponsors live with this trade-off. In tougher financing markets, equity contributions rise: Bain & Company’s 2026 Global Private Equity Report describes a “K-shaped recovery” where 2025 deal and exit values surged, but “constrained debt availability” pushed sponsors to write larger equity cheques (Bain, 2026).
A worked example, with the math out loud
Take a company with $100 million of EBITDA. A sponsor buys it for 10x EBITDA, so enterprise value at entry is $1.0 billion. The deal is financed 60% debt / 40% equity:
- Debt: $600 million at a blended 8% interest → $48 million annual interest expense
- Equity: $400 million from the sponsor’s fund
Now project five years. EBITDA grows from $100M to $140M (a tight 7% CAGR — operational improvement plus modest pricing). After-tax cash flow above interest pays down ~$200M of debt over the period. At year five, the sponsor exits at 10x EBITDA again — no multiple expansion, no multiple compression:
| Line | Year 0 (entry) | Year 5 (exit) |
|---|---|---|
| EBITDA | $100M | $140M |
| Exit multiple | 10.0x | 10.0x |
| Enterprise value | $1,000M | $1,400M |
| Net debt | $600M | $400M |
| Equity value | $400M | $1,000M |
| Money multiple (MOIC) | — | 2.5x |
| Approx. equity IRR | — | ~20% |
The equity went from $400M to $1.0B — a 2.5x money multiple — for an internal rate of return around 20%. The IRR formula sets the net present value of all cash flows to zero: NPV = Σ Cn / (1+r)n = 0 (definition). For a single-entry, single-exit cash flow like this one, IRR collapses to the geometric annual return.
Notice what did the work. EBITDA grew $40M, which lifted enterprise value by $400M at a flat multiple. Debt paydown turned $200M of enterprise value into equity. Together: $600M of equity creation on a $400M cheque. That is the LBO model in one picture.
The four levers of LBO value creation
Take that same illustration apart and you see the four ways equity value moves in any buyout. Operators argue about which one matters most; honest sponsors will tell you a great deal needs three of the four to work.
Lever 1 — EBITDA growth. Run the business better: pricing, mix, new geographies, tuck-in acquisitions, operational efficiency. This is the lever a good sponsor leans on hardest because it survives multiple compression.
Lever 2 — Multiple expansion. Buy at 9x and exit at 11x and you collect “the rerating.” This is the lever everyone wants and nobody can guarantee. Bain’s 2026 report warns explicitly that “multiple expansion” tailwinds are gone; future returns must come from operations (Bain, 2026).
Lever 3 — Debt paydown. Free cash flow above interest amortizes the loan. Every dollar of debt repaid turns directly into equity at exit.
Lever 4 — Cash distributions. Dividend recaps and excess free cash flow returned to the fund mid-hold. Smaller in most deals, but it pulls IRR forward in time, which the math rewards.
Debt covenants and when the math breaks
The borrowed money in an LBO comes with rules. Senior loans typically include financial covenants — most commonly a maximum net debt / EBITDA ratio and a minimum interest coverage ratio (EBITDA / interest). Cross them and the lender can demand fees, freeze distributions, or accelerate the loan.
“Cov-lite” leveraged loans dropped the maintenance covenants in the 2010s, leaving only “incurrence” covenants tested when the borrower wants to take new action (issue more debt, pay a dividend, sell an asset). That made life easier for sponsors during normal times — and harder for lenders when things go wrong, because the warning signals fire later.
What actually kills LBOs is rarely a single covenant trip. It’s the combination of three forces:
- A cycle. Demand falls, EBITDA falls, leverage ratio mechanically jumps.
- Refinancing risk. The TLB has a 7-year maturity. If credit markets are shut at year six, the sponsor has no exit and no rollover.
- Rate shocks. Floating-rate TLBs reprice with SOFR. A 300 bp rate move on $600M of debt is $18M of incremental interest — enough to break coverage in many deals.
Three LBOs and what they teach
| Deal (year) | Size | Sponsor(s) | Outcome |
|---|---|---|---|
| RJR Nabisco (1988) | $25B | KKR | Largest LBO for 17+ years; modest sponsor return after years of break-ups and asset sales. |
| TXU / Energy Future Holdings (2007) | $45B | KKR, TPG, Goldman Sachs | Chapter 11 in 2014 after natural-gas prices fell instead of rising; equity wiped. |
| Electronic Arts (2025) | $55B | PIF, Silver Lake, Affinity | Largest LBO on record; outcome still in progress. |
TXU is the canonical lesson in macro risk: a directional bet on natural-gas prices, dressed up as a deleveraging story. Hertz, in a different chapter of the playbook, was bought in 2005 for $15B inclusive of debt and re-listed within 15 months (history) — only to file Chapter 11 in 2020 when pandemic travel collapsed. Different stories; same root cause when LBOs fail: cash flow turned out lower or more volatile than the underwriting assumed.
The historical context — how the buyout market grew
Bain’s 2026 report frames today’s environment as a “K-shaped” recovery: a small number of large deals are clearing, but distributions back to limited partners are lagging and many sponsors are sitting on portfolios they cannot easily exit. The report’s catch-phrase — “12 is the new 5” — means an extra seven turns of EBITDA growth is now required for the same equity outcome a sponsor used to manufacture from rerating and cheap debt.
Common mistakes when LBO math gets used informally
- Treating IRR as a return. IRR is sensitive to timing. An early dividend recap or a quick partial exit can inflate IRR even when the money multiple is mediocre. Always look at both IRR and MOIC.
- Ignoring fees. A 2-and-20 fund charges 2% of committed capital each year plus 20% of profits above a hurdle. Net IRR to limited partners is meaningfully below gross deal IRR.
- Confusing leverage with value creation. Adding debt does not create enterprise value — it just shifts return between debt and equity. The bigger the multiple at entry, the less room there is for further leverage to do work.
- Forgetting refinancing risk. A loan’s interest rate matters; the date it matures matters more. The 2007 vintage taught the industry that a great underwriting case can still die in a frozen credit window.
- Trusting cov-lite to protect you. Light covenants make refinancings easier but delay the early-warning signal lenders used to get. By the time covenants trip, restructurings are usually steeper.
Related concepts and what to read next
- How CLOs work — the largest buyer of leveraged loans, and the reason TLB markets stay deep.
- Private credit vs syndicated loans — direct-lending funds now finance a growing share of mid-market LBOs.
- Investment grade vs high yield — the bond side of the LBO capital stack.
- How M&A actually gets done — the broader deal mechanics inside which an LBO sits.
Sources
- Leveraged buyout — Wikipedia (definitions, capital structure ranges, deal examples).
- RJR Nabisco — Wikipedia (1988 deal size and structure).
- Energy Future Holdings — Wikipedia ($45B TXU LBO, 2014 Chapter 11).
- Hertz Corporation — Wikipedia (2005 LBO and 2020 Chapter 11 filing).
- Internal rate of return — Wikipedia (canonical IRR equation and PE context).
- Bain Global Private Equity Report 2026 (current LBO market context; “12 is the new 5”).
- Fed SR 13-3 — Interagency Guidance on Leveraged Lending (regulatory framing of leveraged loans).
Disclosure: This article was produced with AI assistance and reviewed before publication. It is for informational purposes only and is not investment advice.