Internal rate of return (IRR) is the discount rate that makes the net present value of a cash flow stream equal zero. Unlevered IRR is the return the real estate produces before any debt; levered IRR is the return the equity receives after the lender gets paid and the loan terms take their cut.
Those two numbers answer different investment committee questions. Mix them up, and you can talk yourself into almost anything.
Why the levered vs. unlevered IRR distinction pays off
Knowing which IRR you are looking at helps you separate real asset quality from financing optics. Unlevered IRR tells you whether the property and business plan work on their own. Levered IRR tells you what the equity check earns after debt economics, covenants, and timing effects.
The two questions you are really asking
Unlevered IRR asks: “If we owned this building with all cash, what would the property earn from operations and sale?” It’s a test of the asset, the business plan, and the price you’re paying. It’s also the cleanest way to compare one deal to another when the financing markets shift.
Levered IRR asks: “Given this loan, these fees, these reserves, and these covenants, what will the equity check earn?” That’s the number that maps to LP distributions, the sponsor’s promote, and the lived experience of the capital stack.
Both are computed as “equity IRRs” in the mechanical sense because you discount cash flows back to an equity contribution. The difference is whether debt is ignored (unlevered) or treated as a real partner that gets paid first and sometimes controls the cash (levered).
Definitions and boundary conditions that keep models honest
IRR depends entirely on the cash flows you feed it. So you need hard definitions before you need prettier charts.
What “unlevered” actually means in practice
Unlevered IRR, often called property, asset, or project IRR, uses cash flows available to all capital providers before debt. It assumes a 100% equity purchase and measures return on that equity from operating cash flow after operating expenses and capital expenditures, plus sale proceeds net of selling costs.
A boundary condition worth stating bluntly is this: if your “unlevered IRR” starts with equity after loan proceeds at closing, it is not unlevered. That is levered equity IRR with a different label.
Why “levered IRR” needs a level label
Levered IRR, often called equity IRR, uses cash flows to equity after debt proceeds at close, debt service, financing fees, required reserves, and any lender cash sweeps. It can be calculated at the property-owning entity, at an SPV above it, or at the LP level after fees and carry. Each can be fine, but only if you say which one you mean.
Another boundary condition is that “levered IRR” before promote, after promote, and net to LP are three different answers. You cannot compare them unless the cash flow definition is explicit, including the distribution waterfall.
Guardrails that keep timing tricks in check
Modified IRR (MIRR) and equity multiple are not IRR, but they are helpful guardrails. IRR can be flattered by timing, especially when cash is returned early. Equity multiple is harder to flatter, so it can keep decision-makers grounded.
Where underwriting teams get into trouble
Most real estate private equity mistakes come from confusing three things. First, asset performance: what the property can earn, independent of how you finance it. That’s unlevered. Second, capital structure: how debt shifts risk and timing for the equity. That’s levered. Third, waterfall engineering: how fees and promote slice the equity stream. That’s not the building; that’s the contract.
A disciplined team treats unlevered IRR as the engine. Leverage is an overlay that can change timing and magnify outcomes. The waterfall is a distribution rule that can change who gets what, when. You reconcile these layers, and you do not substitute one for another.
What goes where in a typical REPE structure
Most deals sit in SPVs for liability and lender requirements. A common layout is that the fund or co-invest vehicle owns an equity SPV, which owns the property company that holds title. The property company borrows under a loan agreement and grants the lender a mortgage and related collateral. Cash management and lease-and-rent assignments often sit beside the mortgage, and they matter because they can control distributions.
Unlevered cash flow is measured at the property level before the debt stack. Levered cash flow is measured after the debt stack, and then it may be measured again after the GP/LP waterfall and deal or fund-level fees.
That location is not accounting trivia. If you show a “levered IRR” at PropCo and ignore asset management fees or fund expenses, you will overstate what the LP experiences. If you jump straight to net-to-LP and the fee load is heavy, you may miss that the property execution is solid but the wrapper is expensive. The fix is simple: show the bridge.
Cash flow mechanics: what belongs in each stream
A good model defines line items precisely and keeps a reconciliation from unlevered to levered. If you cannot bridge them, your IRRs are not decision-useful.
- Acquisition uses: Model purchase price, closing costs, upfront capex, and true project reserves in the unlevered all-cash view.
- Operating cash flow: Include recurring capex, tenant improvements, and leasing commissions when the strategy requires them, since they keep the rent stream alive.
- Exit proceeds: Add sale proceeds net of selling costs and any final capex needed to deliver the assumed sale condition.
- Debt economics: Put interest, amortization, lender escrows, swap or cap payments, and financing fees in the levered stream, because those are financing outcomes.
Unlevered cash flow should not include interest expense, amortization, loan fees, swap payments, or reserve escrows tied to the lender. Put those in, and you have crossed into levered territory.
Levered cash flows start with initial equity at closing, which is total uses minus debt sources. Then you subtract real debt economics over time, including interest, amortization, required reserves, escrows, and hedge costs. Upfront financing fees reduce equity distributions when they are paid, and whether you amortize them for accounting is beside the point for IRR.
At refinance or recap, you model new debt proceeds net of fees, repayment of old debt, and any distributions allowed by covenants such as debt yield tests, DSCR, LTV, lockouts, yield maintenance, or defeasance. At sale, you deduct loan payoff and prepayment costs from sale proceeds before cash reaches equity.
One practical rule is that levered cash flow depends on the loan documents, not just the interest rate line in your model. Cash traps and sweep triggers move distributions, and IRR cares about timing more than most people admit.
A small illustration that shows the whole difference
Take a simple five-year hold. Buy an asset for 100. It throws off 6 per year of unlevered free cash flow after capex. Sell in year 5 for 110 net of selling costs.
Unlevered cash flows are: -100 at close, +6 in years 1 through 5, and +110 in year 5 from sale. That IRR tells you what the asset can do.
Now add 60 of interest-only debt at 6%, with no fees. Equity at close becomes 40. Annual interest is 3.6. Levered annual cash flow becomes 6 – 3.6 = 2.4. At sale, equity receives sale proceeds of 110, pays off 60, and nets 50 from the sale, plus the year-5 operating cash flow after interest. Year 5 levered cash flow is 52.4.
Nothing about the building changed. You changed who bears the risk and when the equity gets paid.
If the sale price drops to 90 instead of 110, the unlevered return declines, but the levered return can fall much harder because the equity is the residual after a fixed payoff. That is the bargain you make with leverage.
How levered IRR gets “better” without stronger economics
Levered IRR is sensitive to early cash. Pulling cash forward increases IRR even if total profit stays flat. Debt is the usual way to pull cash forward, and it often comes with a bill that arrives later.
- Higher leverage: Reduces the equity check and can raise IRR on the same asset cash flows, but it increases refinance risk and sensitivity to cap rate expansion.
- Cash-out refi: Can spike IRR because equity gets capital back early, but it tightens flexibility and can force a sale if the next financing window is shut.
- Interest-only periods: Lift early distributions by lowering debt service, but they create a maturity wall and increase rate risk, especially with floating-rate debt.
- PIK and accrual: Defer payments to improve early equity cash, but they raise the terminal payoff and increase exit pressure.
If an IC sees a levered IRR jump, it should ask one question: did unlevered cash flow improve, did exit value improve, or did we simply shift timing and add fragility? If the answer is timing, treat the improvement as a financing result, not value creation.
Cap rates, discount rates, and the financing market
Unlevered IRR sits closer to the property valuation world because it reflects operating cash flows and exit pricing without financing. It still is not a “discount rate” in the academic sense. Instead, it is the return implied by your underwriting assumptions such as rent growth, lease-up timing, capex timing, and exit cap rate.
Levered IRR embeds the cost of debt and covenant mechanics. If the cost of debt is below the asset’s unlevered return, leverage can raise the equity return. If it is above, you get negative leverage, meaning equity takes more risk for less reward.
A common mistake is comparing levered IRRs across deals under different interest-rate environments. The same property can show a higher levered IRR under a low fixed-rate loan than under a high floating-rate loan with a cap, even if the unlevered case is identical. That is a view on financing conditions. Do not confuse it with a view on the building.
Loan terms that move equity cash, and therefore IRR
Levered IRR lives downstream of documentation. Treat the loan package as part of the return model.
The loan agreement and note define rate mechanics, amortization, maturity, covenants, reporting, defaults, and remedies. The mortgage defines the security and enforcement path. The assignment of leases and rents and cash management agreement define the lockbox and sweeps, often the real control point for equity distributions.
If there is mezzanine debt or preferred equity, the intercreditor agreement defines who can enforce, who can cure, and who controls a workout. If the loan is floating and hedged, the ISDA and collateral terms can create real cash drains when rates move or credit spreads widen.
Execution timing matters. Cash management and intercreditor terms often finalize late. If your model assumes excess cash distributes quarterly and the signed documents say lockbox with DSCR-triggered sweep, your levered IRR is wrong.
Instruments that blur debt and equity
Mezzanine debt is debt legally and junior economically. It reduces equity cash flow through interest and increases terminal payoff. It can also bring tighter covenants and higher odds of cash traps. For more on how this slot behaves in a stack, see mezzanine financing.
Preferred equity often looks like equity on an org chart and feels like debt in a cash flow. If a sponsor reports “levered IRR” to common equity after preferred, the common equity can look impressive because the common check is small. The right comparison is the combined risk and cost of the full stack.
Development loans with delayed draws change everything about timing. Equity is deployed over time, not all at once. If the model assumes perfect draw timing but the lender controls disbursements, retainage, and contingencies, levered IRR will be overstated and the timeline risk will be understated.
Participating debt and profit-sharing redirect upside from equity to the lender. That reduces levered IRR. It may also reduce unlevered cash flow if participation is modeled as an operating cash outflow.
The rule stays simple: define the cash flow stream to the party you’re measuring, then run IRR on that stream. Labels do not do the work.
A fresher angle: measure “IRR gap” to price financing fragility
A useful way to add discipline is to track the IRR gap, meaning levered IRR minus unlevered IRR, across scenarios. A widening gap usually means leverage is pulling cash forward in the base case. However, if that same gap collapses quickly under stress, you are looking at timing-driven return that is fragile to rates, NOI misses, or exit cap expansion.
As a one-line rule of thumb, if the deal needs a big IRR gap to hit hurdles, your IC should treat the underwriting as a bet on financing optionality, not just operations. That framing also helps teams explain results to stakeholders who care about resilience, not just headline returns.
Controls that keep committees from being misled
Three simple disciplines help more than another sensitivity page.
- Underwrite unlevered first: Make sure the asset clears the strategy threshold under conservative exit caps and realistic capex.
- Overlay financing second: Add debt consistent with lender appetite, hedging costs, and covenants, then ask if the incremental return pays for incremental fragility.
- Stress what breaks cash: Test rate shocks, NOI shortfalls, exit cap expansion, delayed sale, and cash management sweeps to see how fast levered IRR compresses.
Include a “no cash-out refi” case. If the base case relies on refi distributions to hit hurdles, you should say plainly that the return depends on financing optionality, not just operating execution.
Closeout and record discipline (because returns get audited)
At exit, treat the deal records like you treat cash: account for them, lock them down, and then clean up.
Archive the full package including model versions, IC materials, Q&A, deal correspondence, user lists, and complete audit logs. Hash the archive so you can prove it has not been altered.
Set retention to match fund docs, lender requirements, and regulatory expectations, and keep legal holds explicit. Then instruct vendors to delete remaining copies and provide a destruction certificate. Legal holds override deletion, every time.
Conclusion
Unlevered IRR tells you whether the asset and business plan work, while levered IRR tells you what equity earns after the lender and documents shape the timing of cash. If you define cash flows clearly, bridge unlevered to levered, and stress the IRR gap, you can separate real value creation from financing-driven optics.