What Is IRR? Internal Rate of Return in Real Estate

IRR, or internal rate of return, is the annual rate of return an investment earns over its whole life—adjusted for not just how much money comes back, but when. A dollar returned in year one counts for more than a dollar returned in year ten, a distinction that is covered under IRR. Because it compresses an entire deal into one percentage, IRR anchors nearly every real estate underwriting conversation.

The formal definition is as follow. IRR is the discount rate at which a project's cash flows have a net present value of zero. With all the costs and revenue accounted for, how much can an investor expect in returns each year?

# How IRR Works

IRR starts with a timeline of cash going out and coming in. For a real estate deal, that usually means the equity check at the start (money out), rental income distributions along the way (money in), and the sale proceeds at the end (money in). The calculation then finds the single annual growth rate that would connect the money you put in to the money you got back, given exactly when each payment happened.

Adjusting for timing is essential. Because every dollar is weighted by when it arrives, the same total profit produces a higher IRR the sooner the cash lands.

Real estate deals almost always get two versions of it. Unlevered IRR looks at the property alone, as if it were bought entirely with cash. In short, it is only concerend with how the building performs, ignoring any loan terms. Levered IRR looks at the deal from the equity investor's seat. It measures the return on the money actually put in, after the mortgage is paid. It's what an investor really receives.

ULI's development guidance has developers run the unlevered number first, on total project cost, and layer in the loan afterward.^[1] The gap between the two numbers captures the effect of borrowing. In ULI's worked multifamily example, the same project returns 14.9% before financing—and 26% on equity once the loan is added.^[2] Why does it decrease when a loan is added? Well when the loan costs less than the property earns, debt boosts the equity return. When it doesn't, debt drags the return down just as hard.

# Why IRR Matters

IRR is the number real estate money is priced against. Profit-sharing agreements between deal sponsors and their investors are usually written as IRR thresholds—hit 12%, the split changes; hit 18%, it changes again. So where the IRR lands describes not only the deal's performance but also who gets paid what. Investment committees screen deals against IRR targets, and missing a threshold by even one percentage point can rearrange the sponsor's entire payday.

That is exactly why IRR is the most gamed number in a pro forma. A deal showing 11% unlevered and 18% levered carries refinancing and loan-term risk that the unlevered figure never reveals,^[3] and comparing two deals' IRRs without checking how much debt each one uses means comparing two different risk profiles as if they were the same.

# Some common misconceptions about IRR

Where you start the clock changes the answer. ULI notes that analysis often begins once the building is fully leased which skips the construction and lease-up years, when money is going out and little is coming in. Including those years lowers the IRR but reflects what a new development actually goes through.^[4] Two honest analysts can get very different IRRs on the same project just by picking different starting points.

IRR assumes you can reinvest at the same rate. The math assumes every dollar distributed along the way gets put back to work earning the same return. A 22% IRR overstates what an investor actually compounds unless those interim distributions really do earn 22% somewhere else. Which, in most environments, they don't.^[5]

Short holds inflate it. IRR is an annual rate, so a modest gain earned in a few months annualizes into a spectacular-looking number that means very little. That's why IRR is always reported next to the equity multiple, that is a simple count of how many dollars came back per dollar invested, which no clock can distort.

# Related Terms

• Cap Rate—a one-year income yield; IRR extends the picture across the full hold
• Yield on Cost—the development-side return on total project cost
• Development Pro Forma—the model IRR is calculated from
• Residual Land Value—what a target IRR implies you can pay for the site

# Frequently Asked Questions

# What is a good IRR in real estate?

It depends on the strategy and the debt. Stable, lightly-borrowed deals target much lower returns than risky value-add or ground-up projects, and levered targets always run above unlevered ones. Any benchmark is meaningless without knowing the hold period, the leverage, and whether the figure is before or after tax.

# What is the difference between levered and unlevered IRR?

Unlevered IRR measures how the property itself performs, as if bought entirely with cash. Levered IRR measures the return on the equity actually invested, after the loan is serviced and repaid at sale. Comparing one deal's levered IRR to another's unlevered IRR is a common and misleading mistake.

# Why is IRR reported with equity multiple?

Because IRR cares about timing and the multiple doesn't. A five-year deal and a ten-year deal can post identical IRRs while returning very different amounts of money. The multiple shows total dollars back per dollar in — the plain count that IRR's annualized math can obscure.