Every rental investor eventually runs into the same problem: two properties, two very different prices, two very different rent rolls — and no obvious way to tell which one is actually the better buy. A $400,000 duplex and a $900,000 fourplex can't be compared on price or rent alone. You need a single number that puts them on the same footing.
That number is the cap rate. Short for capitalization rate, it expresses a property's annual return as a percentage of its price, stripped of financing. It's the closest thing real estate has to a universal yardstick — the metric brokers quote, lenders underwrite around, and seasoned investors calculate in their heads before they finish reading a listing.
This guide explains exactly how to calculate cap rate, walks through worked examples, and shows what counts as a good cap rate in 2026. Understanding it well is the difference between chasing a headline rent number and actually knowing what a rental is worth. And when you're ready to finance a deal, a private lender like Funded Capital can qualify the loan on the property's income rather than yours.
What Is Cap Rate?
The capitalization rate measures the unleveraged annual return on an income property — what the asset would yield in a year if you paid all cash. Because it removes the mortgage from the equation, it describes the property itself, not your particular financing. That's what makes it useful for comparison: two investors with different loans and different down payments will calculate the same cap rate on the same building.
Cap rate answers a simple question: for every dollar of price, how much income does this property throw off each year? A 7% cap rate means the property produces annual net income equal to 7% of its value. All else equal, a higher cap rate means more income per dollar invested — and often more risk or more work.
It's one of a small handful of metrics every buy-and-hold investor should know cold, alongside DSCR for financing and, on the value-add side, ARV for renovation deals.
The Cap Rate Formula
The formula is short:
Cap Rate = Net Operating Income (NOI) ÷ Property Value × 100
Two inputs, one output. The entire skill lies in calculating the first input honestly.
Step 1: Calculate Net Operating Income (NOI)
Net operating income is the property's annual income after operating expenses but before debt service and income taxes. You build it in three moves:
Start with gross potential rent — the total rent if every unit is occupied all year. Add any other income (parking, laundry, storage, pet fees).
Subtract a vacancy and credit loss allowance — typically 5–10% — for empty units and unpaid rent. What's left is your effective gross income.
Subtract operating expenses: property taxes, insurance, property management, repairs and maintenance, utilities you pay, HOA dues, and a reserve for big-ticket replacements. The result is NOI.
The single most common mistake is leaving expenses out to make a deal look better. Your mortgage payment is not an operating expense and is correctly excluded — but taxes, insurance, and management always belong in the calculation.
Step 2: Divide NOI by Price
Divide the annual NOI by the purchase price (or current market value) and multiply by 100 to get a percentage. That's your cap rate.
Cap Rate Examples
Numbers make it concrete. Here are three properties run through the same formula.
| Property | Price | Gross Rent | Operating Expenses | NOI | Cap Rate |
|---|---|---|---|---|---|
| Duplex | $400,000 | $42,000 | $14,000 | $28,000 | 7.0% |
| Fourplex | $900,000 | $96,000 | $39,000 | $57,000 | 6.3% |
| Single-family rental | $320,000 | $30,000 | $11,600 | $18,400 | 5.75% |
Take the duplex. Gross rent is $42,000; after $14,000 of vacancy and operating expenses, NOI is $28,000. Divide $28,000 by the $400,000 price and you get a 7.0% cap rate.
Notice what the table reveals. The fourplex collects far more rent in absolute dollars, but at its price it returns a lower cap rate than the cheaper duplex. On yield alone, the duplex is the more efficient buy — though the fourplex may offer other advantages like scale and easier portfolio financing. Cap rate is exactly the lens that surfaces that trade-off.
What Is a Good Cap Rate?
There's no single "good" cap rate — the right number depends on the asset class, the market, and the risk you're taking on. As a rule, cap rates rise as you move from prime, low-risk assets toward older properties in smaller markets, because buyers demand more yield to compensate for more risk.
Here's roughly where multifamily cap rates sit heading into 2026:
| Asset class | Typical market | 2026 cap rate range |
|---|---|---|
| Class A (newer, prime) | Primary markets | 4.5% – 5.5% |
| Class B (solid, some age) | Secondary markets | 5.5% – 7.0% |
| Class C (older, value-add) | Tertiary markets | 7.0% – 9.0%+ |
Across all classes, U.S. multifamily averaged roughly a 5.6% cap rate in early 2026, with rates expected to stay broadly stable through the year. A "good" cap rate is one that fairly compensates you for the specific risk of the specific property — a 5% cap on a brand-new building in a top market can be a better deal than a 9% cap on a distressed property in a thin one.
Higher Cap Rate Isn't Always Better
New investors often assume the highest cap rate wins. It doesn't. A very high cap rate frequently signals a reason to be careful: a declining neighborhood, deferred maintenance, unstable tenancy, or income that won't hold. A lower cap rate can reflect a safer, more liquid asset that's easier to finance and easier to sell. Cap rate is a starting point for judgment, not a substitute for it.
How Cap Rate Fits Into Financing
Cap rate and financing are close cousins. Because the metric is built from NOI — the same income figure a lender uses — it connects directly to how much a property can borrow.
On a DSCR loan, the lender qualifies the deal on whether the property's income covers its debt, expressed as the debt-service coverage ratio. A property with a healthy cap rate and strong NOI generally supports a stronger DSCR, which can mean better terms and a larger loan. That's why the same income work you do to calculate cap rate feeds straight into DSCR loan qualification — and why no personal income documentation is required on most of our programs.
Cap rate also drives valuation on larger deals. For multifamily properties, value is often derived by dividing NOI by a market cap rate — meaning that raising NOI, or buying at a higher cap rate than the market, directly builds equity. This is the engine behind value-add and BRRRR strategies.
Take Your Deal From Analysis to Funded
Running the cap rate is the easy part. Closing before another investor does is where deals are won — and that's where Funded Capital is built to move.
We're a Miami-based private lender financing rental and value-add deals across 45 states. Our DSCR loans start at 6.75% with up to 80% LTV, qualified on the property's income with no income verification on most programs. For value-add and flips, Fix & Flip financing starts at 8.75% with up to 90% LTC.
You'll get a term sheet in about 2 hours on average and can close in 5–10 business days — because in a competitive market, the investor who's ready to fund wins. Run your numbers on our cap rate and DSCR calculator, see how the process works, and when the deal pencils out, apply now to get a term sheet the same day.
Frequently Asked Questions
What is the cap rate formula? Cap rate equals net operating income (NOI) divided by the property's price or value, expressed as a percentage: Cap Rate = NOI ÷ Value × 100. NOI is annual income after vacancy and operating expenses but before your mortgage payment and income taxes.
What is a good cap rate in 2026? It depends on the asset. Newer Class A multifamily in prime markets trades around 4.5–5.5%, Class B in secondary markets around 5.5–7%, and older Class C in smaller markets 7–9% or higher. U.S. multifamily averaged about 5.6% in early 2026. A good cap rate is one that fairly pays you for the property's specific risk.
Does cap rate include the mortgage? No. Cap rate deliberately excludes financing so it describes the property itself, not your loan. Your mortgage payment is not part of NOI. To measure your return after financing, use cash-on-cash return instead.
Is a higher cap rate always better? No. A high cap rate often signals higher risk — an older property, a weaker market, or income that may not hold. A lower cap rate can reflect a safer, more liquid, easier-to-finance asset. Weigh cap rate against risk, not in isolation.
How does cap rate affect my loan? A property with strong NOI and a healthy cap rate typically supports a stronger debt-service coverage ratio, which can qualify it for a larger DSCR loan on better terms. The same income figure drives both numbers, and on most Funded Capital programs there's no personal income verification required.
Terms are subject to underwriting, appraisal, title, and insurance.
Written by
Luis Fajardo
Senior Sales Director, Funded Capital · Lending to real estate investors nationwide — $500M+ funded across 1,200+ deals.