The capitalization rate, or cap rate, is the quickest way to compare income properties and the number that quietly drives most commercial and multifamily appraisals. If you are buying, refinancing or facing a loan maturity, understanding how a small change in cap rate moves value can save you from a refinance that comes up short.
The cap rate formula
Cap rate is the property's net operating income divided by its value or purchase price:
Cap rate = Net operating income (NOI) ÷ Property value
NOI is the property's income after operating expenses (taxes, insurance, management, repairs, utilities the owner pays, reserves) and before any mortgage payment, depreciation or income tax. Because debt is left out, cap rate describes the property, not the owner's financing.
The same three numbers can be arranged three ways, and each answers a different question:
- Cap rate = NOI ÷ Value. What yield is this price paying me?
- Value = NOI ÷ Cap rate. What is this income worth at the market's yield? This is the income approach in a commercial appraisal.
- NOI = Value × Cap rate. What income does this price need to make sense? Useful for checking whether a listing's price and stated cap rate agree.
A worked example
Illustrative example. Not an offer or a completed transaction.
A small apartment building produces $120,000 of NOI after realistic expenses. The owner has a $1,300,000 loan coming due.
- At a 6.0% cap rate: $120,000 ÷ 0.060 = $2,000,000 value. The $1,300,000 balance is 65% of value.
- At a 7.0% cap rate: $120,000 ÷ 0.070 = about $1,714,000 value. The same $1,300,000 balance is now about 76% of value.
Nothing about the building changed, yet one point of cap rate cut the value by roughly $286,000. If the new lender's maximum loan-to-value is below 76%, the owner either brings cash to closing, raises NOI before refinancing, or uses a different structure. Running this math before the appraisal is ordered is what keeps the owner in control of the decision.
The same $120,000 of NOI across a range of cap rates:
| Cap rate | Value | $1,300,000 loan as a share of value |
|---|---|---|
| 5.0% | $2,400,000 | 54.2% |
| 5.5% | $2,181,818 | 59.6% |
| 6.0% | $2,000,000 | 65.0% |
| 6.5% | $1,846,154 | 70.4% |
| 7.0% | $1,714,286 | 75.8% |
Notice that the lower the cap rate, the more each half point matters. Moving from 5.0% to 5.5% costs about $218,000 of value. Moving from 6.5% to 7.0% costs about $132,000. Low cap rate markets, which include much of coastal California, are the most sensitive to small changes.
The number underneath: NOI
A cap rate is only as reliable as the income it is applied to. Owners, listing brokers, appraisers and lenders routinely produce four different NOI figures for the same building, mostly because of vacancy, management fees, reserves and property taxes. We cover each adjustment line by line in how lenders calculate NOI.
What a cap rate tells you, and what it does not
- It compares properties on one basis. Two buildings at different prices can be compared by the income each dollar of value produces.
- It reflects perceived risk. Lower cap rates usually mean buyers see the income as safer or expect it to grow; higher cap rates usually mean more risk, more management work or weaker growth expectations.
- It does not include financing. Your return after the mortgage payment is cash-on-cash return, not cap rate.
- It is a one-year snapshot. It says nothing about rent growth, lease expirations, deferred maintenance or what the property sells for later.
- It is only as good as the NOI. A listing cap rate built on a seller's understated expenses or above-market rents is not the cap rate a lender or appraiser will use.
Four cap rates you will hear, and which one matters
- Listing (or pro forma) cap rate. The seller's NOI, often projected, divided by the asking price. Treat it as marketing until you rebuild the NOI yourself.
- Going-in cap rate. Your first-year NOI, on your expenses and your property tax bill, divided by what you actually pay.
- Market cap rate. What comparable properties have recently sold for relative to their income. This is the one the appraiser applies, and so the one that sets your loan-to-value.
- Exit cap rate. The cap rate you assume when you sell or refinance later. Assuming it will be lower than today's is the most common way a projection goes wrong. Bridge and construction lenders test the same assumption when they judge how their loan will be repaid; see our California construction takeout guide.
How lenders and appraisers use cap rates
On a commercial or 5+ unit multifamily loan, the appraiser estimates a market cap rate from comparable sales and applies it to the property's NOI. Lenders then size the loan on the lowest of several limits: loan-to-value, which depends on that appraised value, and debt service coverage and debt yield, which depend on NOI. When market cap rates rise, values fall even if rents hold steady, and the loan-to-value limit is often what shrinks a refinance.
Lenders also adjust NOI before the math. Expect a vacancy factor, a management fee even if you self-manage, and replacement reserves. Underwritten NOI is often lower than the owner's own figure, so start your estimate there.
Cap rate vs. DSCR vs. debt yield
- Cap rate (NOI ÷ value) measures the property's income against its value.
- Debt service coverage ratio (NOI ÷ annual debt service) measures whether the income covers the mortgage payment. See how it works on rental property on our DSCR loans page.
- Debt yield (NOI ÷ loan amount) is a lender screen that ignores both the interest rate and the appraised value.
A loan has to pass all the tests a lender applies, and the smallest result wins. We walk through one property under all three in cap rate, DSCR and debt yield: the three numbers that size a commercial loan.
Cap rates and the cost of borrowing
When the annual cost of a loan is higher than the property's cap rate, borrowing lowers your cash return instead of raising it. This is called negative leverage, and it is common today in low cap rate markets. It does not make a purchase wrong, but it means the return has to come from rent growth, improvements or paying down debt rather than from the financing. There is an example with numbers in California apartment cap rates in 2026.
When cap rate is the wrong tool
- One-to-four unit rentals. Houses, condos and small rentals are usually appraised by comparing recent sales, not by capitalizing income. A DSCR rental loan on these properties compares rent with the monthly housing payment; the cap rate is a useful investor screen but it is not how the loan is sized. Our Desert Hot Springs fourplex case study shows a refinance of that kind.
- Vacant, under-renovation or lease-up properties. There is no stabilized NOI to capitalize. Lenders look at cost, as-is value and the projected stabilized value instead, which is the territory of a bridge loan.
- Owner-occupied commercial property. When your own business is the tenant, lenders underwrite the business's cash flow first. See owner-occupied commercial loans.
Using cap rate before a purchase or refinance
- Rebuild the NOI. Use the trailing 12-month operating statement and add the expenses a lender will add.
- Test a range of cap rates. Run value at the cap rate you expect and at one point higher. If the deal only works at the low end, plan for the high end.
- Compare value to your loan. Divide the loan you need by each value to see your loan-to-value.
- Find your break-even cap rate. Multiply NOI by the lender's maximum loan-to-value and divide by the loan you need. If the market cap rate is above that figure, the loan will not fit on value alone. The steps are in how rising cap rates shrink a refinance.
- Choose the structure. If the numbers are tight because the property is still leasing up or being renovated, a bridge loan first and a permanent refinance later may fit better than forcing a permanent loan on today's NOI.
If your loan is maturing, our checklist for a commercial loan coming due lists the documents and timeline to plan for. For apartment and mixed-use buildings, see multifamily and mixed-use loans.
Go deeper
- How lenders calculate NOI, and why your cap rate and the appraiser's do not match
- Cap rate, DSCR and debt yield: the three numbers that size a commercial loan
- How rising cap rates shrink a refinance, and what to do before your loan matures
- California apartment cap rates in 2026: what they mean for financing
Frequently asked questions
What is a good cap rate?
There is no single good cap rate. It depends on the property type, location, condition, tenant quality and market conditions at the time. Compare a property's cap rate with recent sales of similar properties in the same market rather than with a general rule of thumb.
Is a higher cap rate better?
A higher cap rate means more income per dollar of price, and usually more risk, more management or weaker growth prospects. A lower cap rate means buyers are paying more for income they consider safer or expect to grow. Neither is better on its own.
Does cap rate include the mortgage payment?
No. Cap rate uses net operating income before debt service, so it is the same whether the property is bought with cash or financed. Your return after the mortgage payment is measured by cash-on-cash return.
Do DSCR rental loans use cap rates?
Not directly. On one-to-four unit rentals, a DSCR loan compares the rent with the monthly housing payment, and the appraisal relies mainly on comparable sales. Cap rate drives value on commercial and 5+ unit multifamily property.
Why did my appraisal come in lower than the listing cap rate suggested?
Appraisers and lenders typically use their own NOI, with vacancy, management and reserves added, and a market cap rate from comparable sales. A lower NOI or a higher market cap rate both reduce value.
How do rising cap rates affect a refinance?
Higher cap rates lower the appraised value for the same NOI, which raises the loan-to-value on your existing balance. That can reduce the loan available at refinance and may require a paydown, a different program or a bridge loan.
Want us to run the numbers on your property?
Send the rent roll, operating statement and your current loan details, and we will review the financing options that may fit. Term sheets are subject to review and lender approval and are not a commitment to lend.
Blue Fox Capital Corporation arranges and places financing for real estate investors, commercial property owners and California homeowners. Blue Fox Capital Corporation is a licensed California mortgage broker (DRE 01527288, NMLS 1840487). On select correspondent loan programs it is the direct lender named on the loan documents. We confirm the role for your loan before anything is submitted. Daniel Eckhouse, NMLS 217328 | CA DRE 01977403. This article is general information, not an offer, a rate quote, a loan approval, an appraisal or legal, tax or investment advice for your situation. Examples are illustrative only and are not completed transactions. Market figures are from the sources and dates cited and may have changed. Programs, terms and availability vary by property, borrower and lender and are subject to qualification and lender approval. Not all applicants will qualify. The business-purpose loans discussed are not available for a home you live in or plan to live in. Equal Housing Opportunity. 4695 MacArthur Court, 11th Floor, Newport Beach, CA 92660 | (310) 756-3619 | dan@bluefoxcapital.com