Cap Rate

· 3 min read
Cap rate — short for capitalization rate — is the annual return a property would generate if you bought it with all cash, and it’s…

Cap rate — short for capitalization rate — is the annual return a property would generate if you bought it with all cash, and it’s the most widely used metric for comparing investment properties on a level playing field.

The formula: Net Operating Income (NOI) / Purchase Price x 100. A property producing $50,000/year in NOI priced at $750,000 has a cap rate of 6.67%. That tells you this property earns 6.67 cents on every dollar of value, regardless of how it’s financed.

Why Cap Rate Matters

Cap rate strips out financing, which varies from buyer to buyer, and isolates the property’s raw earning power. One investor might pay all cash. Another puts 25% down. A third uses creative seller financing. They all see the same cap rate because it ignores the mortgage entirely.

This makes cap rate the universal language of commercial real estate. When a broker says “that strip mall is a 7 cap,” every investor in the room instantly knows the return profile. It’s shorthand that compresses complex financial analysis into a single number.

What Cap Rates Tell You

Higher cap rate = higher return but usually higher risk. Lower cap rate = lower return but typically safer. Here’s the general range:

  • 3-4.5%: Trophy properties in major metros. Brand-new Class A apartments in Manhattan or San Francisco. Extremely low risk, extremely high prices.
  • 5-6%: Solid properties in strong secondary markets. Well-maintained apartment complexes in growing metros like Nashville, Raleigh, or Denver.
  • 6-8%: The sweet spot for many investors. Value-add opportunities, smaller multifamily, B and C class properties in decent areas.
  • 8-10%: Higher-yield properties that come with more management headaches. Older buildings, rougher neighborhoods, or smaller markets.
  • 10%+: Proceed with caution. Either it’s a genuine deal or the market is pricing in serious risk — deferred maintenance, bad location, declining area, or problem tenants.

Cap Rate and Property Valuation

In commercial real estate, cap rate directly determines price. Flip the formula around: Property Value = NOI / Cap Rate.

A building with $80,000 NOI in a 7% cap rate market is worth $1,142,857. The same building in a 5% cap rate market? $1,600,000. Nothing about the building changed — only the market’s pricing expectations. This is why cap rate compression (rates going lower) creates enormous wealth for existing owners, and cap rate expansion (rates going higher) can destroy values.

This also reveals the power of forced appreciation. Increase your building’s NOI by $20,000 through rent bumps and expense cuts in a 6% cap rate market, and you’ve added $333,333 in value. That’s the most potent wealth-building mechanism in commercial real estate.

Cap Rate Limitations

Cap rate doesn’t account for appreciation potential, which is a big deal. A 4% cap rate property in a booming market might deliver better total returns than an 8% cap rate property in a stagnant one. The 4 cap gives you less cash flow today but could appreciate 30% over five years.

It also ignores the physical condition of the building. Two properties might have identical cap rates, but one has a new roof and HVAC while the other needs $80,000 in capital expenditures next year. The cap rate looks the same on paper, but the true cost of ownership is vastly different.

Finally, cap rate is a moment-in-time snapshot. It doesn’t capture how income or expenses might change over the next five years. A building with below-market rents has a low cap rate today but huge upside once those leases roll to market rates.

Using Cap Rate in Your Analysis

Use cap rate for initial screening and market-level comparisons. Then dig deeper with cash-on-cash return (which includes your financing), IRR (which captures the full holding period), and detailed cash flow projections.

Model how financing affects your actual returns with our mortgage calculator. Our buying guide covers the full property evaluation process, and the glossary has related investment terms you’ll want to know.

Cap rate is often compared with rental yield — understanding both metrics gives you a more complete picture of investment returns.