Unlevered IRR is the internal rate of return computed on free cash flows before debt service — treating the investment as if it were entirely equity-funded.

How it works

IRR is the discount rate that makes the net present value of cash inflows and outflows equal zero. Levered IRR uses cash flows to equity holders after interest, principal, and fees — so adding cheap debt can boost equity returns even when the business itself performs the same. Unlevered IRR uses enterprise-level cash flows: revenue minus operating costs and taxes, plus terminal value, without subtracting interest or modeling debt paydown.

Example sketch: a PE firm buys a company for $100M equity and $50M debt. Exit five years later returns $200M to equity after repaying debt. Levered IRR on equity can look strong because less cash went in upfront. Unlevered IRR values the whole $150M purchase price against total enterprise proceeds — often lower than levered equity IRR but comparable across buyers who used different leverage.

In venture, pure equity rounds make levered and unlevered returns similar for early shareholders. The distinction matters more in buyouts, recapitalizations, and late-stage deals with venture debt stacked on top.

Why it matters

• Founders: If an acquirer pitches high returns, ask whether leverage drives the headline — operating improvement vs financial engineering.
• Investors: LPs and deal teams benchmark operating skill with unlevered returns; fund-level TVPI and net IRR reflect fees, timing, and any fund borrowing on top.

Common mistake

Quoting levered equity IRR as proof of operational excellence when most of the gain came from cheap debt at closing and multiple expansion, not margin improvement.

Related ideas

See also IRR, levered IRR, MOIC, TVPI, and enterprise value.