Most investors can tell you the cap rate formula: Net Operating Income divided by purchase price. What fewer people understand is what lenders actually do with that number — and it’s not always what you’d expect. When a lender looks at your cap rate commercial real estate deal, they’re running a different calculation than you are.
What you’ll learn:
- How cap rate is calculated and what counts as NOI
- How lenders use cap rate to value a property (and why their number differs from yours)
- What debt yield is and why it matters more to lenders than cap rate alone
- Typical cap rate ranges by property type in 2026
- What a “good” cap rate actually depends on
What Is a Cap Rate in Commercial Real Estate?
A capitalization rate — cap rate — is the ratio of a property’s net operating income to its current market value or purchase price. It expresses what percentage of the property’s value the property earns annually as income, before financing costs.
Formula: Cap Rate = NOI ÷ Property Value (or Purchase Price)
If a property generates $120,000 in annual NOI and sells for $2,000,000, the cap rate is 6.0%. That 6% figure tells you both the property’s return at that price and — when you flip the formula — the market’s implied valuation for that income stream. Divide the NOI by the cap rate and you get the value: $120,000 ÷ 0.06 = $2,000,000.
What Counts as NOI?
Net operating income is gross rental income minus vacancy minus operating expenses. The key phrase is “operating expenses” — because debt service, capital expenditures, depreciation, and income taxes are specifically excluded.
A simple NOI build-up looks like this:
| Line Item | Example |
|---|---|
| Gross potential rent | $150,000 |
| Less: Economic vacancy (5%) | ($7,500) |
| Effective gross income | $142,500 |
| Less: Property taxes | ($18,000) |
| Less: Insurance | ($6,000) |
| Less: Property management (8%) | ($11,400) |
| Less: Maintenance & repairs | ($7,500) |
| Less: Replacement reserves | ($5,000) |
| Net Operating Income | $94,600 |
Most disputes between buyers and sellers on cap rate come down to how NOI is calculated. Sellers often present a “pro forma” number that assumes full rent and no reserves. Lenders almost always stress NOI down before underwriting — adding vacancy, capping management fees, and building in replacement reserves. The result is their NOI is usually lower than the seller’s, which flows directly into a lower valuation.
How Lenders Use Cap Rate to Value a Property
Lenders use the cap rate as an income-approach valuation tool. They take their underwritten NOI — typically more conservative than the seller’s pro forma — and divide it by a market cap rate for that property type and geography to arrive at an independent value estimate.
Example: A seller markets an apartment complex at a 5.5% cap rate and a $3.2M asking price. The lender underwrites NOI at $155,000 (after stress) and applies a 5.75% market cap rate from their own comps. The lender’s value: $155,000 ÷ 0.0575 = $2.70M. That $500,000 gap directly affects how much the lender will advance.
This is why lenders often come in at a lower LTV than borrowers expect on properties with aggressive seller pricing. Their NOI and their applied cap rate may both be more conservative than yours.
Per CBRE’s H1 2026 Cap Rate Survey — drawn from 3,600 estimates across 50-plus U.S. markets — cap rates remained broadly flat in the first half of 2026, even as the 10-year Treasury peaked at 4.67%. That stability reflects competition for institutional-grade assets and constrained supply in core markets.
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Cap Rate vs. Debt Yield: The Metric Lenders Trust More
Here’s what often surprises first-time commercial borrowers: sophisticated lenders don’t actually size loans to cap rate. They size them to debt yield.
Debt yield is NOI divided by the loan amount — expressed as a percentage. It tells the lender what they’d earn on their investment if they had to take back the property tomorrow, without waiting for an appraisal or a market sale.
Formula: Debt Yield = NOI ÷ Loan Amount
In 2026, most commercial lenders want to see a minimum debt yield of 8–10%. Institutional lenders on core multifamily sometimes accept 7.0–7.5% for top-tier assets; value-add and bridge lenders typically require 9–11%. Per current market data, the average debt yield across commercial real estate transactions is running near 9.8%, reflecting continued lender selectivity in a market where cap rates haven’t expanded enough to offset higher financing costs for marginal deals. (Source: CBRE H1 2026 Cap Rate Survey via Yahoo Finance)
The advantage of debt yield over cap rate: it can’t be gamed by adjusting the assumed cap rate. If market cap rates compress to 4.5%, the lender can still look at debt yield and determine whether the loan is appropriately sized given actual NOI.
From a recent deal: I worked on a 12-unit multifamily acquisition in the Atlanta metro where the borrower had modeled their underwrite at a 5.0% cap rate on pro forma rents. The lender used trailing 12-month actuals, which put stabilized NOI about 8% lower, and applied a 5.25% market cap — dropping their valuation by nearly $300,000. The DSCR and debt yield both tightened, and we ended up bridging a gap with mezzanine capital to close at the agreed purchase price. It happens more often than people expect on value-add purchases where current income doesn’t yet match pro forma.
Typical Cap Rates by Property Type in 2026
Based on CBRE’s H1 2026 survey and current market transactions, here are the general ranges:
| Property Type | Cap Rate Range (2026) | Notes |
|---|---|---|
| Class A Multifamily | 4.5–5.25% | Primary and Sunbelt markets |
| Class B/C Multifamily | 5.25–6.5% | Secondary markets, older assets |
| Class A Industrial | 5.0–6.0% | Logistics, gateway markets |
| Class B Industrial / Flex | 6.0–7.5% | Secondary markets, older product |
| NNN Retail (national tenant) | 4.5–5.75% | Long lease term, IG credit tenant |
| Anchored Retail / Strip | 6.5–8.5% | Vacancy risk reflected |
| Self-Storage | 5.5–7.0% | Stabilized, primary markets |
| Select-Service Hotel | 7.5–9.0% | Operator-dependent |
| Mixed-Use | 5.5–7.5% | Depends on retail vs. residential mix |
These ranges shift significantly based on location, asset age, occupancy, lease structure, and sponsorship. A 6.5% cap on a stabilized Atlanta apartment complex is a different underwrite than a 6.5% cap on a Midwest strip mall with two vacant anchors. For our active programs and current commercial real estate rates, the financing varies significantly by property type and risk profile.
What Does a “Good” Cap Rate Actually Mean?
There’s no universal answer, and anyone who gives you one is oversimplifying.
A lower cap rate signals lower perceived risk and higher demand — and a higher purchase price relative to income. A higher cap rate implies more risk or lower demand, but potentially better cash-on-cash yield. What matters is context:
- Your financing cost. If your all-in rate is 7.5%, a 5.0% cap rate creates negative leverage — your financing costs more than the property earns. That’s not automatically bad if you’re buying for value-add upside, but you need to underwrite that explicitly.
- The exit cap assumption. If you buy at 5.0% and your five-year plan assumes selling at 4.75%, you’re betting on cap rate compression. In a flat or rising rate environment, that’s a risky assumption to bake in as a baseline.
- The debt yield test. Can the NOI support the loan you need at a debt yield lenders will accept? If not, the cap rate is almost irrelevant — the deal won’t get financed as structured.
For multifamily bridge loans on value-add deals, bridge lenders are typically underwriting to a stabilized cap rate on a forward NOI — not current income. The loan is sized to what the property will produce at stabilization.
For NNN property financing, cap rate is often the dominant underwriting metric because the lease is triple-net and the tenant credit drives the value. A 4.75% cap on a 15-year NNN lease with an investment-grade national tenant is a completely different risk profile than a 6.0% cap on a local restaurant with three years left on their lease.
Frequently Asked Questions
What is a cap rate in commercial real estate?
A cap rate is the ratio of a property’s net operating income (NOI) to its purchase price or market value, expressed as a percentage. Investors and lenders use it to estimate a property’s return and to value income-producing properties using the income approach.
Is a higher or lower cap rate better?
It depends on your perspective. A lower cap rate typically signals a lower-risk, higher-demand asset and a higher price relative to income. A higher cap rate implies more risk or lower demand but potentially better cash yield. Lenders focus on whether the cap rate and NOI support both their valuation and their debt yield requirements.
What is a good cap rate for multifamily in 2026?
For stabilized Class A multifamily in primary and Sunbelt markets, most H1 2026 transactions closed in the 4.5–5.5% range per CBRE’s H1 2026 Cap Rate Survey. Class B/C assets in secondary markets trade closer to 5.5–6.5%.
How do lenders use cap rate vs. debt yield?
Lenders use cap rate to determine property value (their underwritten NOI divided by a market cap rate). They use debt yield — NOI divided by loan amount — to confirm the loan is appropriately sized relative to actual income. In 2026, most commercial lenders require a debt yield of 8–10% or higher.
What is the difference between cap rate and DSCR?
Cap rate measures a property’s income return relative to its value. DSCR (debt service coverage ratio) measures the property’s income relative to its debt payments. Cap rate tells you what the property is worth; DSCR tells you whether the financing is sustainable month to month.
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This article is for informational purposes only and does not constitute financial, legal, or tax advice. Loan terms, rates, and availability vary by borrower, property, and market conditions. Consult Willowbrook Capital for scenario-specific guidance.
