Cash on Cash Return: What It Is, How to Calculate It, and What's Good
The metric that tells you what your actual invested dollars are earning. Not the property's return — your return.
Cash on cash return answers the most fundamental question in real estate investing: for every dollar I put into this deal, how many dollars am I getting back each year? It is the clearest measure of your personal return on invested capital, and it accounts for something cap rate completely ignores — your mortgage.
The Formula
Annual Cash Flow is your rental income minus every expense including your mortgage payment. This is the actual money that hits your bank account over 12 months.
Total Cash Invested is every dollar you put into the deal: down payment, closing costs, any upfront repairs, and inspection fees. It does not include the loan amount because that is the bank's money, not yours.
What Makes It Different from Cap Rate
Cap rate measures the property's return as if you paid all cash. It strips out financing entirely. Cash on cash return includes your mortgage payment and measures what you actually earn on the cash you personally invested.
This distinction matters enormously. A property can have an attractive 6% cap rate but deliver a mediocre 2% cash on cash return if you are financing at a high interest rate. Conversely, a property with a modest 4% cap rate could produce a strong 10% cash on cash return if you secure favorable financing terms.
A Complete Example
You are buying a rental property for $200,000. You put 20% down ($40,000) and pay $5,000 in closing costs. Total cash invested: $45,000.
The property rents for $1,400/month ($16,800/year). Your monthly expenses break down as follows: property taxes $200, insurance $100, maintenance reserve $140, property management $112 (8% of rent), and vacancy reserve $48 (roughly one-third of a month per year). Total operating expenses: $600/month.
Net operating income: $1,400 - $600 = $800/month = $9,600/year. This gives you a cap rate of 4.8% ($9,600 / $200,000).
Now add the mortgage. Your loan is $160,000 at 7% for 30 years. Monthly payment: approximately $1,064.
Monthly cash flow: $1,400 rent - $600 expenses - $1,064 mortgage = -$264/month. Annual cash flow: -$3,168.
Cash on cash return: -$3,168 / $45,000 = -7.0%.
What Happens When Rates Change
Using the same property, let us see how different interest rates change the cash on cash return:
At 7% interest: mortgage $1,064/mo, cash flow -$264/mo, CoC return -7.0%.
At 6% interest: mortgage $959/mo, cash flow -$159/mo, CoC return -4.2%.
At 5% interest: mortgage $859/mo, cash flow -$59/mo, CoC return -1.6%.
At 4% interest: mortgage $764/mo, cash flow +$36/mo, CoC return +1.0%.
At 3.5% interest: mortgage $718/mo, cash flow +$82/mo, CoC return +2.2%.
The property did not change. The rents did not change. The expenses did not change. But the cash on cash return swung from -7% to +2.2% based entirely on financing. This is why cash on cash return is essential — it captures the reality of your specific deal structure.
What Is a Good Cash on Cash Return?
8-12%: Strong return
This is the range most experienced investors target. At 10% cash on cash, $50,000 invested generates $5,000 per year in actual cash flow. Deals in this range typically require either a below-market purchase price, above-average rents, a low interest rate, or some combination of all three.
5-8%: Acceptable in growth markets
In markets with strong appreciation potential like Austin, Nashville, or Raleigh, investors will accept lower cash returns because they expect property values to climb 3-5% annually. The total return (cash flow plus appreciation plus equity paydown) can still be excellent even when cash on cash is modest.
Under 5%: Typically too thin
Below 5%, the cash return barely exceeds what you could earn in a high-yield savings account or Treasury bonds — with none of the hassle of being a landlord. Deals under 5% only make sense if appreciation potential is very strong or if you are buying with a refinance plan that will improve returns once rates drop.
Negative: Proceed with extreme caution
Negative cash on cash means you are paying money every month to own the property. This can make sense as a short-term situation if you are confident rates will drop and you will refinance, or if the property is in a rapidly appreciating market. But negative cash flow drains reserves, and if it persists longer than expected, it can force a sale at a bad time.
How Leverage Amplifies Returns (and Risk)
Leverage is the reason cash on cash return exists as a separate metric from cap rate. When you borrow money to buy real estate, you are amplifying your returns — in both directions.
Positive leverage occurs when your cap rate exceeds your cost of borrowing. A 7% cap rate property financed at 5% interest produces a cash on cash return higher than the cap rate because every borrowed dollar earns more than it costs. This is how investors historically generated 12-15%+ cash on cash returns during low-rate periods.
Negative leverage occurs when your cost of borrowing exceeds the cap rate. A 5% cap rate property financed at 7% interest produces a cash on cash return lower than the cap rate because every borrowed dollar costs more than it earns. This is the current environment for many markets.
Cash on Cash vs Cap Rate: Quick Comparison
Cap rate ignores financing, measures property performance, best for comparing properties and evaluating markets. Use our cap rate calculator to run the numbers.
Cash on cash return includes financing, measures your personal return, best for evaluating specific deals and comparing financing options.
Use both together. Cap rate tells you if the property is worth owning. Cash on cash tells you if the deal is worth doing right now with current financing. A property with a great cap rate but terrible cash on cash return might be worth buying if you can finance it better later. A property with a great cash on cash return but low cap rate might mean you got a great loan on a mediocre property.
When to Use Cash on Cash Return
Calculate cash on cash on every deal before you make an offer. Run it with your actual financing terms, not hypothetical numbers. Compare deals side by side to see which one puts more cash in your pocket per dollar invested. Then use our market data to find cities where the numbers work.
For mortgage payment calculations, use the mortgage calculator to model different down payment and rate scenarios. And check MortgageMathLab.com for deeper analysis on how different loan structures affect your monthly payment and total cost of ownership.