A $350,000 rental that nets you $309 a month after the mortgage sounds like it "cash flows." Run the math and that is a 3.8% cash-on-cash return, less than a 12-month Treasury bill, with infinitely more risk, effort, and illiquidity. Cap rates and appreciation projections can make any deal look reasonable on a spreadsheet. Cash-on-cash strips that away and asks one uncomfortable question: what is your actual money actually earning right now?
What is cash-on-cash return?
Cash-on-cash return measures the annual pre-tax cash flow you receive as a percentage of the cash you invested. Not the property's theoretical yield. Not a five-year projection that assumes 4% appreciation and zero vacancy. Just the dollars going into your bank account this year, divided by the dollars you put in.
Annual cash flow is rent minus operating expenses minus debt service. Total cash invested is your down payment plus closing costs plus any upfront rehab. That is the entire formula. It deliberately ignores appreciation, equity buildup, and tax benefits, which is what makes it useful. A deal that looks good on cash-on-cash can survive on its own merits. A deal that only looks good after layering in three assumptions about the future is a speculation, not an investment.
How to calculate cash-on-cash return: a worked example
The calculator above defaults to a single-family rental priced at $350,000. You put 25% down ($87,500), finance the remaining $262,500 at 7.25% over 30 years, and pay roughly 3% in closing costs ($10,500). Total cash in: $98,000.
Monthly rent is $2,800 with $700/mo in operating expenses, leaving $2,100 in monthly NOI. Your mortgage payment runs about $1,791/mo, so monthly cash flow is $309. Annualized: $3,708.
A 3.8% cash-on-cash is thin. At that yield, you would earn more parking the same $98,000 in an S&P 500 index fund (historically ~10% annual) or even a money market account, without ever fielding a tenant call. The deal might still pencil when you factor in appreciation and loan paydown over time, but purely on cash flow, you are taking on landlord risk for savings-account returns.
Move the rent slider above to $3,100 (realistic for a well-located SFR in a market like Charlotte or Nashville) and watch the return jump to 7.5%. Now move the down payment to 20%. The return climbs further, but so does the monthly payment. That tension is the whole game.
What is a good cash-on-cash return?
The honest answer: it depends on the market and the thesis. An 8% cash-on-cash in Indianapolis means something different than a 3% in San Diego. But there are ranges that separate the deals worth doing from the ones that are just expensive hobbies.
| Cash-on-Cash | What it actually means |
|---|---|
| Below 0% | You are writing a check every month to own this property. Common in coastal California, parts of South Florida, and anywhere purchase prices have detached from rents. Only rational as a deliberate appreciation bet with deep reserves. |
| 0% to 4% | Your money is earning less than a Treasury bill. The deal needs a strong appreciation story or significant value-add upside to justify the effort, risk, and illiquidity. Most of the "cash-flowing" deals investors brag about on social media land here once you include realistic expenses. |
| 4% to 8% | Moderate. The property pulls its weight but is not building wealth through cash flow alone. Acceptable in growth markets like Austin, Raleigh, or Salt Lake City where you are also banking on appreciation. Thin as a pure income play. |
| 8% to 12% | Strong. Your cash is genuinely working. This is the range most cash-flow investors target, and it is achievable in markets like Birmingham, Memphis, Cleveland, and parts of the Midwest where prices remain low relative to rents. |
| 12%+ | Excellent on paper. Verify the numbers twice. Returns this high sometimes hide deferred maintenance, bad neighborhoods, or aggressive vacancy assumptions. A legitimate 12%+ exists, but it takes work to find and more work to maintain. |
The leverage paradox
Here is where cash-on-cash gets interesting, and where most investors get confused. Leverage does not always help. It is a multiplier, and multipliers work in both directions.
Take the $350,000 property from the example. Two investors buy it. Investor A pays all cash. Investor B puts 25% down at 7.25%.
Investor A earns $25,200/year in NOI on $350,000 invested: a 7.2% return. That is just the cap rate. Investor B earns $3,708/year on $98,000 invested: a 3.8% return. Leverage made the return worse, not better.
Why? Because the interest rate (7.25%) exceeds the cap rate (7.2%). Every borrowed dollar costs more than it earns. Leverage only amplifies your return when the cap rate exceeds the cost of debt. In 2019 with 4.5% rates on a 7% cap rate property, leverage was magic. In 2025 with 7%+ rates, the math is upside down on a lot of deals.
This is the paradox: putting more money down makes the deal safer (more cash flow, bigger cushion) but lowers the percentage return on your capital. Putting less down increases the percentage return when the spread is favorable, but also makes you more vulnerable. A single vacancy month hits a lot harder when the mortgage payment is $1,791 versus zero.
Slide the down payment in the calculator above from 25% to 10%. Watch what happens to the monthly cash flow and the percentage return simultaneously. That trade-off is the central tension of leveraged real estate investing.
Cash-on-cash vs ROI vs cap rate
These three metrics get mixed up constantly, and using the wrong one leads to wrong decisions. Each answers a different question.
| Metric | The question it answers | Formula | Includes financing? |
|---|---|---|---|
| Cash-on-cash | What is my cash earning right now? | Annual cash flow ÷ cash invested | Yes, after debt service |
| Cap rate | What does the property yield unlevered? | NOI ÷ purchase price | No, ignores the loan entirely |
| Total ROI | What is my full return including everything? | (Cash flow + appreciation + paydown + tax benefits) ÷ cash invested | Yes, everything included |
A deal in Cleveland at a 9% cap rate and 11% cash-on-cash is a cash-flow play. A deal in Austin at a 5% cap rate and 2% cash-on-cash is an appreciation play. Both can be smart. But if you use cash-on-cash to evaluate the Austin deal or cap rate to evaluate the Cleveland deal, you are judging a fish by its ability to climb a tree.
When cash-on-cash misleads
Cash-on-cash is the most honest metric in your toolbox, but it has blind spots. Knowing them keeps you from passing on good deals or chasing bad ones.
- It ignores appreciation entirely. A duplex in Denver at 3% cash-on-cash with 7% annual appreciation is building wealth faster than a triplex in Detroit at 10% cash-on-cash in a flat market. Cash-on-cash will never tell you that.
- It ignores principal paydown. Every mortgage payment chips away at the loan balance. On a $262,500 loan at 7.25%, you pay down roughly $3,500 in year one. That is real equity that cash-on-cash does not count. By year 10, paydown alone adds significant return on top of cash flow.
- It ignores tax benefits. Depreciation shelters cash flow from taxes. A property with $25,000 in annual cash flow might show $0 in taxable income after depreciation. That tax savings is real money cash-on-cash does not capture.
- It penalizes value-add deals. If you spend $40,000 on a rehab, that cash goes into the denominator. A BRRRR deal with high upfront investment and a low initial cash-on-cash might refinance into a monster return, but the year-one metric looks terrible.
The solution is not to abandon cash-on-cash. It is to pair it with total ROI for the full picture and cap rate for apples-to-apples property comparisons. No single metric tells the whole story. Any investor who claims otherwise is selling something.
Common cash-on-cash mistakes
- Forgetting closing costs. Your cash invested is not just the down payment. Closing costs on a $350,000 property easily run $10,500 at 3%, and in markets like New York or Illinois with high transfer taxes, it can be significantly more. Leave them out and your real return is lower than you think.
- Using pro-forma rent instead of market rent.The seller's listing says $3,000/mo. Rentometer says $2,700. The appraiser's rent survey says $2,650. Use the conservative number. If the deal only works at the optimistic rent, it does not work.
- Skipping CapEx reserves. That $700/mo expense estimate needs to include a reserve for the roof, HVAC, water heater, and appliances. These things break. If you are not reserving 5% to 10% of gross rent for CapEx, your cash-on-cash is a fiction. The bill comes eventually.
- Assuming 100% occupancy. One vacant month drops annual cash flow by $2,800 in the example above. That takes the return from 3.8% to roughly 0.4%. Budget at least one month of vacancy per year, more in markets with high tenant turnover.
- Confusing pre-tax and after-tax numbers. Cash-on-cash is calculated pre-tax. If someone quotes you an after-tax figure and you compare it to your pre-tax number, you are not comparing the same thing. This matters more than most investors realize, especially in high-income tax brackets.
When cash-on-cash matters most
- Comparing deals side by side. A $180,000 triplex in Kansas City versus a $400,000 SFR in Nashville. Different prices, different rents, different loans. Cash-on-cash normalizes everything to one question: what does each invested dollar earn? It is the only metric that makes this comparison apples to apples.
- Evaluating your leverage strategy. Should you put 20% down or 30%? Cash-on-cash shows you exactly how each scenario changes the return on your capital. More down payment improves monthly cash flow but lowers the percentage return, and in a high-rate environment, the difference can be dramatic.
- Choosing between real estate and other investments. If your cash-on-cash is 3.8%, that same $98,000 in an S&P 500 index fund has historically returned around 10% annually with zero effort. Your deal needs to deliver meaningful appreciation or paydown (or both) to justify the extra risk and work. Be honest about that comparison.
- BRRRR exit analysis. After the refinance, your new cash-on-cash tells you whether the deal still performs with the higher loan balance and new terms. A BRRRR that looked great at acquisition can fall apart at refinance if rates moved against you. Run the post-refi cash-on-cash before you commit.
Frequently asked questions
What is a good cash-on-cash return on rental property?
It depends on what you are buying and where. In a cash-flow market like Birmingham or Memphis, 8% to 12% is achievable and should be your floor. In Austin or Raleigh, you might accept 4% to 6% because the appreciation thesis does the heavy lifting. Below 4%, your money earns less than a Treasury bill with none of the liquidity and all of the 2 AM phone calls. That is not investing. That is volunteering.
How is cash-on-cash return calculated?
Annual pre-tax cash flow divided by total cash invested, expressed as a percentage. Cash flow is rent minus operating expenses minus the full mortgage payment. Cash invested is your down payment plus closing costs plus any upfront rehab. It is a simple formula that hides a lot of nuance, mainly around what counts as an expense and whether your vacancy assumption is realistic.
What is the difference between cash-on-cash return and cap rate?
Cap rate ignores how you pay for the property. It divides NOI by purchase price as if you wrote a check for the full amount. Cash-on-cash measures what your actual invested dollars earn after debt service. Two investors can buy the same property at the same 7% cap rate and get a 12% or a 3% cash-on-cash depending on their loan terms. Cap rate compares properties. Cash-on-cash compares deals.
What is the difference between cash-on-cash return and ROI?
Cash-on-cash only measures the cash you pocket this year. Total ROI layers in appreciation, principal paydown, and tax benefits, all the things that might make a thin cash-on-cash deal worthwhile. A duplex in Denver at 3% cash-on-cash but 8% annual appreciation has a strong total ROI. But you cannot spend appreciation, and it is never guaranteed. Cash-on-cash tells you what is real right now.
Does cash-on-cash return include appreciation?
No, and that is the point. Cash-on-cash isolates the question of whether the deal pays you today. It does not factor in equity buildup, property appreciation, or tax benefits. This makes it the most conservative return metric in your toolbox. If a deal looks good on cash-on-cash, it almost certainly looks better on total ROI. But not the other way around.
How does leverage affect cash-on-cash return?
Leverage amplifies returns when the cap rate exceeds your interest rate, and destroys them when it does not. On a 7% cap rate property financed at 6%, leverage works in your favor: less cash in, higher percentage return. Finance the same property at 7.5% and leverage works against you. Many investors in 2024 and 2025 learned this the hard way when rates rose above cap rates in markets like Phoenix and Tampa.
Should I use cash-on-cash return or cap rate to compare deals?
Use both, but for different questions. Cap rate compares properties on a level field: same financing assumptions, same leverage. Cash-on-cash compares what your specific dollars earn under your specific loan. If you are choosing between two deals with the same lender and same terms, cash-on-cash is the tiebreaker. If you are comparing a fourplex in Cleveland to a condo in San Diego, start with cap rate.
Why is my cash-on-cash return negative?
Because the rent minus expenses does not cover the mortgage. This is not rare. It is the norm in expensive coastal markets where investors pay $600,000 for a property renting at $2,800. The bet is appreciation. If you are negative and not in a high-appreciation market, something in the underwriting is wrong: the price is too high, the rate is too steep, or the expense estimate is too optimistic. Rerun the numbers honestly.