When investors compare private real estate opportunities, they quickly run into a small vocabulary of return metrics: cash-on-cash, internal rate of return, equity multiple. Each describes a different aspect of how money might grow, and each has blind spots. None of them is a promise — they are ways of summarizing assumptions about an uncertain future. Understanding what each metric measures, and what it conveniently leaves out, is one of the most useful skills a limited partner can develop.
This guide explains the concepts. It uses no specific projections; the point is to read the metrics critically wherever you encounter them.
Two ways real estate can make money
Before the metrics, it helps to remember where returns come from. Income-producing real estate can reward an investor in two broad ways: the cash flow a property generates while it is owned, and the change in the property's value, realized when it is eventually sold. Different metrics emphasize different parts of that picture, which is exactly why looking at more than one matters.
Cash-on-cash: the income view
Cash-on-cash return describes the annual cash flow an investment produces relative to the cash invested. In spirit, it answers a simple question: in a given year, how much cash is this investment putting in my pocket compared with what I put in?
Its strength is that it focuses on real, in-period income — the part of the return you might actually receive along the way rather than only at sale. Its limitation is just as important: cash-on-cash says nothing about appreciation, nothing about the eventual sale, and nothing about timing beyond the single year it describes. A property can show a modest cash-on-cash figure and still produce a strong overall result if it appreciates, or a healthy cash-on-cash figure and a poor overall result if its value erodes. It is a snapshot of income, not a measure of total return.
Internal rate of return (IRR): the time-weighted view
Internal rate of return is the metric that tries to account for timing. It expresses the return as an annualized rate that reflects the size and timing of every cash flow — money in at the start, distributions along the way, and proceeds at sale. Because it weights when cash moves, IRR captures something cash-on-cash cannot: a dollar received sooner is worth more than a dollar received later.
IRR's sophistication is also its trap. Because timing drives the number, IRR can be unusually sensitive to assumptions about when events happen — especially the timing and price of a future sale that has not occurred and may never occur as modeled. Two deals with the same total profit can show very different IRRs purely because of assumed timing. A high projected IRR that depends on a quick, richly priced exit is a different proposition from a steadier one built on durable income. Always ask what assumptions are doing the work.
Equity multiple: the total-dollars view
Equity multiple is the most intuitive of the three. It describes how many total dollars an investment is projected to return for each dollar invested, across the whole hold — distributions plus sale proceeds. An equity multiple above one means more came back than went in; the higher the multiple, the more total profit per dollar.
What the equity multiple deliberately ignores is time. It treats a dollar returned in year two and a dollar returned in year eight as equivalent, even though they are not. That is why equity multiple and IRR are natural companions: the multiple tells you how much total money the plan projects to return, and IRR tells you how that result is shaped by time. A respectable multiple earned slowly and a similar multiple earned quickly look identical on a multiple basis but very different on an IRR basis.
Why no single number is enough
Each metric illuminates one face of an investment and shadows the others. Cash-on-cash shows income but ignores the exit. IRR captures timing but can be gamed by exit assumptions. Equity multiple shows total dollars but ignores timing entirely. Read alone, any one of them can mislead; read together, they start to describe an investment honestly.
This is also why the assumptions behind the numbers matter more than the numbers themselves. A projection is only as sound as the rent growth, occupancy, expense, financing, and sale assumptions feeding it. Disciplined, downside-first underwriting tends to favor conservative inputs and a sensible purchase basis, so the projected returns rest on defensible expectations rather than optimistic ones. You can see how that process works in CRE underwriting and due diligence.
Targets are not results
One more distinction is worth stating plainly: a projected or target return is a forward-looking estimate set when a deal is underwritten — not a realized result and not a guarantee. Markets, interest rates, supply, and local demand all influence outcomes, and none of them is obligated to cooperate. Treating targets as expectations rather than entitlements is part of investing with clear eyes. Our guide to understanding risk in commercial real estate covers the forces that can move actual results away from projections.
A grounded way to read the numbers
When you see return metrics on an opportunity, resist the urge to anchor on the single most impressive figure. Ask what each number measures, what it leaves out, and — above all — what assumptions produce it. Look for consistency across cash-on-cash, IRR, and equity multiple, and treat any figure that depends on heroic assumptions with caution. The metrics are tools for thinking, not scores to chase.
To go deeper, explore our private CRE insights, or see how to invest for the way we approach these decisions. Have a question about how a specific opportunity is framed? Reach out — we're glad to talk it through. This article is general education, not an offer, solicitation, or investment advice.
