Private equity has a reputation for turning modest sums into fortunes. From the outside, it looks like financial magic.
It is not magic. It is leverage, applied with discipline. A firm buys a company mostly with borrowed money, uses the company's own cash flow to pay that debt down, and sells a few years later owning far more of a bigger business.
Here is the actual mechanism, with the numbers, and exactly where it can go wrong.
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The 60-Second Version
An LBO buys a company using a small slice of equity and a large slice of debt.
The company's own cash flow pays that debt down over roughly five years.
Returns come from three places: debt paydown, EBITDA growth, and selling at a higher multiple.
Leverage magnifies the equity return, and the losses, which is why target selection is everything.
The core idea: buy with borrowed money
In a leveraged buyout, a private equity firm buys a company using only a small amount of its own money, the equity, and funds the rest with debt secured against the company being bought.
The capital structure after a buyout: a thin layer of equity over a large layer of debt.
The company carries its own purchase. This is the part that surprises people. The debt sits on the acquired company's balance sheet, and the company's future cash flow is what repays it. The firm is, in effect, buying a business by having the business pay for itself over time.
A simple example, with numbers
Say a firm buys a company for 100. It puts in 40 of its own equity and borrows 60.
At entry: price 100, made up of 40 equity and 60 debt.
Over five years: the company's cash flow repays 40 of debt, leaving 20 outstanding.
At exit: modest growth lets the firm sell the business for 130.
Equity at exit: 130 sale price minus 20 remaining debt equals 110.
That is 40 turned into 110, roughly 2.75 times, in five years. Now run the same deal with no debt: pay 100 in cash, sell for 130, and you make 1.3 times. Same company, same growth. Leverage is what turned a 1.3 times return into a 2.75 times return. That gap is the entire business model.
Where the returns actually come from
Strip an LBO down and equity value grows through exactly three levers.
The LBO analysis, step by step.
Debt paydown: cash flow repays debt, so the equity slice grows even if the company's value stays flat. This is the quiet engine.
EBITDA growth: grow earnings through revenue growth or margin improvement, and the whole business is worth more at exit.
Multiple expansion: sell at a higher multiple than you bought at. It is real, but the least reliable lever, and good firms never count on it.
What makes a good LBO target
Not every company can carry this much debt. The ideal target has a specific profile.
The layers of LBO financing, from senior bank debt to equity.
Steady, predictable cash flow to service the debt without stress.
A mature, proven business, not a volatile or early-stage one.
Low existing debt and a clean balance sheet, leaving room to add leverage.
Hard assets that can act as collateral.
A clear path to improve operations or grow earnings.
Why it can blow up
Leverage cuts both ways. The same debt that magnifies gains magnifies losses. If cash flow falls short, the company still owes its interest and principal. Miss those payments and the business can default, wiping out the equity entirely.
That is why the discipline in private equity is not the financial wizardry people imagine. It is refusing to overpay, not over-levering, and choosing targets whose cash flows can genuinely carry the debt. A paper LBO done on the back of an envelope is often how a firm pressure-tests exactly that before committing a dollar.
How to learn to model one
Start with a paper LBO: entry price, debt, cash flow, exit, return, all by hand.
Build the debt schedule first. The paydown drives most of the return.
Test the deal at a lower exit multiple than entry. A deal that only works on multiple expansion is a bad deal.
Layer it on a working three-statement model, since the LBO feeds off the cash flow it produces.
Our full leveraged buyout analysis guide walks the whole model with a worked example.
Reply and tell me whether you want the next issue on the debt schedule or the exit math. I will build out whichever you pick.
Best regards,
Dheeraj Vaidya, CFA, FRM
Ex-JPMorgan & CLSA
Co-founder, WallStreetMojo
P.S. If you want this plus everything else we teach, our WallStreetMojo All-Access Membership includes the Financial Modeling and Valuation Course along with 50+ courses and certifications covering Investment Banking, Equity Research, AI, and more.
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