What a capitalization rate actually measures
A cap rate is annual net operating income divided by purchase price. Put $120,000 into a house that nets $10,200 a year after operating expenses and you have an 8.5% cap rate.
What makes it useful is what it leaves out: financing. Cap rate describes the building, not your loan. Two investors buying the same duplex on the same day — one with cash, one with 25% down at 7.25% — compute exactly the same cap rate, because the property's income and price haven't changed. That makes it the right tool for comparing properties against each other, and the wrong tool for judging your own return on a leveraged deal.
Net operating income also excludes capital expenditure — a roof, a furnace, a full turnover. Those are real and they are not in this number. A reserve line is the honest way to carry them, which is why the calculator above defaults to 6% maintenance and 7% vacancy rather than zero.
Why cap rates differ so sharply across Northeast Ohio submarkets
Drive fifteen minutes in Cuyahoga County and the yield math changes completely. Published 2026 estimates put inner-ring East Side suburbs — Cleveland Heights, University Heights, South Euclid — somewhere around 7.5% to 10%, while lower-priced Cleveland city neighbourhoods get quoted at 10% to 14%.
That gap is not free money. It is the market pricing risk, and three things drive it:
- Taxes. Cuyahoga carries one of Ohio's heaviest effective property tax burdens, and it is uneven inside the county. Municipal estimates run from under 2% of market value to above 3.5%. On a $120,000 rental that spread is more than $1,800 a year — comfortably a full point of cap rate.
- Turnover and collections. The eye-catching Class C yields assume the rent actually arrives every month and the tenant stays. Where turnover is frequent, a single vacancy plus make-ready can erase a year of the premium you bought the neighbourhood for.
- Cash flow versus appreciation. Higher cap rates are compensation for flat or uncertain values. Lower cap rates in stable suburbs are what buyers pay for a property that holds value and attracts long tenancies. Neither is correct — they are different trades, and you should know which one you are making.
This is also why a gross cap rate and a net cap rate can be a world apart. One 2026 comparison of three-bed homes put Cleveland at a 9.2% gross cap and a 6.1% net cap. The difference is the operating expenses most headline figures skip.
Cap rate versus cash-on-cash return
Cap rate measures the property. Cash-on-cash return measures your position in it: the cash left after the mortgage, divided by the cash you actually put in.
Here is the part most calculators get wrong. Leverage lifts your cash flow only when the cap rate beats the loan constant — annual principal and interest divided by the loan amount — not when it merely beats the interest rate. A 30-year loan at 7.25% has a constant of about 8.2%, because you are paying down principal as well as interest. So a property would need a cap rate north of roughly 8.2% before that financing improves your yearly cash position.
That is why the default scenario on this page shows a 7.4% cap rate and a 5.0% cash-on-cash: the deal is perfectly sound, but an amortising mortgage takes more cash out each year than the building yields. The principal portion is not lost — it is equity, and it is a real part of your total return — but it is cash out the door this year, and cash-on-cash is a cash measure. Toggle between All Cash and Financed above and watch the two numbers separate.
The most common error we see in Northeast Ohio underwriting follows from this: a deal that looks fine un-leveraged and bleeds once the real Cuyahoga tax bill and a real amortising payment are both in the model. Run your worst case here before you run your best one.