CAP Rate And Discount Rate, The Relationship Between The Two

Part of What is a Good Cap Rate for Multifamily?

Table of Contents

1. Cap Rate
2. Discount Rate Real Estate
3. CAP Rate vs. Discount Rate
4. How the CAP Rate & Discount Rate Can be Used in Conjunction
5. The Limitations of Relying Solely on Cap Rates or Discount Rates
6. Frequently Asked Questions About The CAP Rate and Discount Rate
7. CAP Rate Discount Rate - Conclusion

Cap rate and discount rate sit at the center of how commercial real estate gets valued, but they answer two different questions about the same asset. The cap rate is a current-yield snapshot — in-place net operating income divided by current market value — and it tells you what the property is producing today against what the market is willing to pay for that income stream. The discount rate is a forward-looking required return used inside a discounted cash flow (DCF) model to translate a multi-year stream of projected NOI plus an exit assumption back into a single present value.

The two metrics get conflated all the time, including in deal materials where they should not be. A property pricing at a 6.0% in-place cap rate is not the same as a property underwritten to an 8.5% DCF discount rate — the gap between those two numbers is exactly what the value-add business plan, the exit cap assumption, and the embedded risk premium are paying you for. Getting that gap right is most of the work in serious underwriting.

This guide walks through how each rate is constructed, how the two relate through the Gordon growth approximation, where each one is actually useful, how to use them together, and the specific limitations of relying on either metric on its own.

Cap Rate

The cap rate is the simplest yield expression in real estate: stabilized annual NOI divided by current market value. A property generating $600,000 of NOI that trades at $10 million prices at a 6.0% cap rate. The formula sits above the capital stack, which is why two investors with very different debt structures and tax situations still see the same cap rate on the same property — the metric isolates the unlevered yield the asset is producing right now from the financing decisions any individual buyer might overlay on it.

The market drives cap rates. Class A core multifamily in primary Sun Belt MSAs typically trades in the 4.5 to 5.5 percent band when the 10-year Treasury sits in the 4 to 4.5 percent range, Class B value-add product runs roughly 5.5 to 7 percent depending on vintage and submarket, and Class C properties in tertiary markets can push 7 to 9 percent. Those bands shift as Treasuries move and as buyer demand for the asset class compresses or widens the spread investors require above the risk-free rate.

Current Market Value of Asset

Market value in the cap rate formula is whatever a willing buyer would pay for the property today, given current NOI, prevailing market cap rates, and the buyer pool actually transacting. It is not the appraised value, not the basis, and not the seller's ask — it is the clearing price the asset would actually trade at in the current environment. Brokers and appraisers triangulate this number from recent comparable sales, current listings, and bid feedback on similar product in the same submarket.

For an LP evaluating a sponsor's underwriting, the cap rate the deal is being priced at is the first number to stress-test. A purchase at a 5.0% in-place cap rate during a cycle where comparable trades clear at 6.0% means the sponsor is overpaying relative to market unless the value-add business plan can credibly bridge the gap. Conversely, a 7.5% in-place cap rate in a 6.0% market signals either a distressed seller, a flawed asset, or a real opportunity — and the underwriting work is figuring out which.

CAP Rate Example in Action

NOI itself is the operator's lever. Gross rental income plus other income (laundry, pet fees, RUBS, parking, application fees) less operating expenses (property management, repairs and maintenance, insurance, property taxes, utilities, marketing, administrative) equals the NOI that every cap rate calculation runs through. A property producing $100,000 of gross monthly income against $40,000 of monthly operating expenses runs at $60,000 of monthly NOI, or $720,000 annualized — and every dollar of NOI growth translates into roughly $14 to $18 of valuation lift at a 6 to 7 percent cap rate, which is the entire mechanical engine behind multifamily value-add.

The three-property comparison in the table above — a 6.17% cap, a 5.88% cap, and a 9.5% cap — illustrates why cap rate is necessary but not sufficient. The 9.5% Property C looks like the obvious winner on yield, but high cap rates almost always reflect something the market is pricing in: tertiary submarket, deferred capex, weaker tenant credit, or limited rent growth runway. A disciplined operator does not chase the headline cap rate; they cross-check it against rent growth trajectory, expense ratio durability, exit cap rate risk, and the achievable hold-period IRR before deciding which deal actually produces the better risk-adjusted return.

Property	Annual Income	Annual Expenses	Market Value	Cap Rate
A	$100,000	$7,500	$891,000	6.17%
B	$250,000	$112,000	$2,346,000	5.88%
C	$300,000	$129,000	$1,800,000	9.5%

Discount Rate Real Estate

The discount rate is the required annual return an investor demands to take on a specific stream of projected cash flows, and it is the input that drives the discounted cash flow (DCF) framework. Inside a DCF, the investor projects NOI year by year over the hold period, assumes an exit cap rate to price the terminal sale, then discounts all of those future cash flows (operating distributions plus the exit proceeds) back to today at the chosen discount rate. The resulting net present value tells you what those cash flows are worth in today's dollars given the return you are requiring.

For multifamily, the discount rate an operator uses in a DCF typically sits 200 to 400 basis points above the going-in cap rate on the same asset. The spread is the price of forward-looking risk: NOI projections can miss, exit cap rates can expand, capex can run over budget, and the hold-period operating environment can deteriorate in ways that a snapshot cap rate cannot capture. A property pricing at a 6.0% in-place cap might be underwritten at an 8.5% to 9.5% unlevered discount rate, with the gap reflecting the variance the investor is being paid to absorb.

Discount Rate Example in Action

The five-year cash flow stream shown above — $100,000, $115,000, $125,000, $140,000, $150,000 — discounted at 8 percent produces a present value of roughly $495,000. That number is the maximum an investor requiring an 8 percent annual return would pay today for that specific stream of projected cash flows, assuming the projections hold and ignoring the residual value of the asset at the end of year five. Push the discount rate up to 10 percent and the same cash flows price closer to $470,000; drop it to 6 percent and they price closer to $525,000. The discount rate moves inversely to value, dollar for basis point.

The judgment in DCF work is not in the arithmetic — it is in the three subjective inputs: the projected NOI growth path, the exit cap rate assumed for the terminal sale, and the discount rate chosen to discount everything back. An aggressive sponsor can produce almost any present value they want by tuning those three knobs, which is why a rigorous LP looks at the underlying assumptions rather than the headline NPV. The discount rate alone tells you what return the sponsor expects to clear; the assumptions feeding the model tell you whether that expectation is grounded in defensible reality or in proforma optimism.

Year	Cash Flow
1	$100,000
2	$115,000
3	$125,000
4	$140,000
5	$150,000
NPV	$495,407.25

CAP Rate vs. Discount Rate

The cleanest way to separate the two metrics: cap rate prices a stabilized asset based on what it is producing right now, while discount rate values a projected cash flow stream based on what an investor requires to absorb the risk of those projections. Cap rate is market-driven and observable in comparable trades; discount rate is investor-specific and reflects how much risk premium a particular buyer demands over the risk-free rate to take on that particular set of forward assumptions.

The relationship between them, in the Gordon growth approximation, is roughly: cap rate ≈ discount rate − long-run NOI growth rate. If an investor requires a 9 percent discount rate and underwrites long-run NOI growth at 3 percent, the implied stabilized cap rate is 6 percent. That identity is why high-growth markets clear at lower cap rates than low-growth markets at the same risk-free rate — the discount rate may be similar, but the growth term in the denominator is doing more work. For a value-add deal, the going-in cap is low not because the market is overpaying, but because buyers are pricing in the NOI growth the business plan is expected to deliver.

How the CAP Rate & Discount Rate Can be Used in Conjunction

In practice, the two metrics live together inside any serious multifamily underwriting model. The going-in cap rate prices the purchase: NOI over the next twelve months divided by the total acquisition basis tells you the current yield the deal produces. The DCF then projects NOI year by year through the hold period, applies the discount rate to those projected flows, and assumes an exit cap rate to price the year-five or year-seven terminal sale. The exit cap is almost always assumed to be 25 to 75 basis points wider than the going-in cap, which builds in a margin of safety against cap-rate expansion through the hold.

The terminal value calculation inside the DCF is where the cap rate re-enters the model: stabilized year-five NOI divided by the assumed exit cap rate produces the sale price, which is then discounted back to present at the chosen discount rate along with the interim operating cash flows. This combination — cap rate for the entry and exit valuations, discount rate for the time-value translation in between — is the standard institutional framework. Sponsors who only quote a cap rate are giving you the snapshot; sponsors who walk you through both the going-in cap, the exit cap, and the DCF assumptions are giving you the full underwriting. Framing going-in vs exit cap rate in basis points up front locks in the safety margin against cap-rate expansion through the hold.

The Limitations of Relying Solely on Cap Rates or Discount Rates

Cap rates carry the limitation of every backward-looking snapshot: they capture the property's current yield but say nothing about whether NOI is durable, growing, or about to collapse. A property pricing at a 7.0% in-place cap on income from a single anchor tenant whose lease expires in eighteen months is not actually a 7.0% cap deal in any meaningful sense, but the headline number does not warn you. Cap rates also assume the in-place NOI is real and sustainable, which is why operators verify actuals and discount broker proformas heavily before signing anything.

Discount rates carry the opposite limitation: the framework is forward-looking and flexible enough that the underwriting becomes a function of the assumptions rather than the asset. Small changes in projected NOI growth, exit cap, or discount rate can swing the present value by 15 to 25 percent on the same set of in-place numbers, which means DCF outputs are only as reliable as the assumptions feeding them. The discipline is to use both metrics together — cap rate to anchor the current pricing against observable market comps, DCF to test whether the projected business plan actually clears the required return — and to treat any deal that requires aggressive assumptions to pencil as a signal to walk, not a signal to push harder. The same fragility applies to where pro forma cap rate fits: it codifies the projected NOI but inherits all the assumption risk of a DCF.

Frequently Asked Questions About The CAP Rate and Discount Rate

CAP Rate Discount Rate - Conclusion

Cap rate and discount rate are two views of the same property, separated by time horizon and what they actually measure. The cap rate is the in-place, market-observable yield the asset produces today, anchored to current NOI and current comparable sales. The discount rate is the required forward return embedded in a DCF, anchored to projected NOI, an assumed exit cap, and the investor's risk premium over the risk-free rate. The Gordon growth identity (cap rate ≈ discount rate − growth) makes the relationship between them mechanical: the gap is the long-run NOI growth the market is pricing into the asset.

For an LP evaluating a multifamily syndication, the practical move is to verify the sponsor uses both metrics honestly. A going-in cap rate at or near comparable trades, an exit cap underwritten 25 to 75 basis points wider, a discount rate that reflects the genuine risk profile of the deal rather than a number reverse-engineered to make the IRR look attractive — those are the markers of disciplined underwriting. The sponsors who consistently produce the proforma return through full market cycles are the ones who let the conservative version of these inputs price the deal, then earn the upside by out-executing the business plan.

Sources:

1. Investopedia, “Discount Rate”