By Meraj Uddin Provat · Last reviewed May 23, 2026 · Editorial Standards
Cap rate (capitalization rate) is the yardstick real-estate investors use to compare rental properties: annual net operating income divided by price. It strips out financing so two properties can be judged apples-to-apples. Here’s what it means and what a “good” one is.
The one-sentence definition
Cap rate is a rental property’s annual net operating income (NOI) as a percentage of its price — the unlevered yield the building produces, ignoring how you finance it.
The formula
`Cap rate = NOI ÷ purchase price × 100`
Where NOI = annual rent − operating expenses (vacancy allowance, property tax, insurance, maintenance, management, HOA, utilities you pay). NOI does not subtract the mortgage — that’s the entire point. Compute it with the cap rate calculator.
A worked example
$300,000 property. Annual rent $30,000. Operating expenses (vacancy, tax, insurance, maintenance, management) $12,000.
- NOI = $30,000 − $12,000 = $18,000
- Cap rate = 18,000 ÷ 300,000 = 6%
What’s a “good” cap rate in 2026?
| Market / asset | Typical cap rate |
|---|---|
| Class A, expensive metros | 3.5–5% |
| Class B, stable markets | 5.5–7% |
| Class C / value-add | 8–12% |
| Distressed / heavy value-add | 12%+ |
With 2026 mortgage rates near 7%, a cap rate below ~6% means negative leverage — borrowing costs more than the property earns unlevered, so you’re betting on appreciation, not cash flow.
Cap rate vs cash-on-cash return
- Cap rate ignores financing — measures the property.
- Cash-on-cash = annual pre-tax cash flow ÷ cash invested — measures the deal (includes your loan).
A property can have a solid cap rate but terrible cash-on-cash if financed poorly. Smart investors look at both, plus DSCR and monthly cash flow — all in the cap rate calculator.
Why investors lead with cap rate
It’s the fastest comparison tool. Because it’s leverage-neutral, you can line up ten listings and instantly see which buildings produce more income per dollar of price — before financing muddies the picture. High cap rate generally means higher yield but often higher risk (rougher area, older building, more management).
What cap rate does NOT tell you
- Financing cost (rates, leverage) — use cash-on-cash
- Appreciation potential
- Capital expenditures (roofs, HVAC) beyond routine maintenance
- Your personal tax situation
Cap rate is a screening metric, not a full underwriting.
Frequently asked questions
Is a higher cap rate better? Higher = more income per dollar of price, but usually more risk (worse area, older asset). Lower cap rates often mean safer, appreciating markets. “Good” depends on strategy.
Does cap rate include the mortgage? No. NOI excludes debt service deliberately, so cap rate is financing-neutral and comparable across properties.
What cap rate should I target? In 2026, 6%+ to avoid negative leverage at current mortgage rates; 7–10% for cash-flow-focused Class B/C. Adjust for your market.
Cap rate vs ROI? Cap rate is unlevered yield on price. ROI/cash-on-cash factor in your financing and actual cash invested.
How do I find NOI? Annual rent minus all operating expenses including vacancy, tax, insurance, maintenance and management — even if you self-manage, count a management cost so it’s comparable.
Bottom line
Cap rate is the investor’s first-glance yield: NOI ÷ price, no financing. Use it to screen deals, then check cash-on-cash and DSCR before buying. Run all of it in the cap rate calculator.
Educational explainer, not investment advice.