Cash-on-cash return is the number most investors fixate on, and it is the one that undersells almost every rental deal. A property throwing off 3.8% cash-on-cash looks thin. You compare it to a high-yield savings account, wonder why you would bother with tenants and toilets, and pass. Except you just ignored two-thirds of the actual return.
The three engines of rental ROI
A rental property builds wealth through three separate mechanisms running simultaneously. Cash-on-cash only counts one of them. Total ROI counts all three, and the gap between those two numbers is the reason most people misread rental deals.
- Cash flow. The rent left over after expenses and the mortgage payment. This is the money that actually hits your account each month. It is real, it is measurable, and in most leveraged deals it is the smallest of the three engines.
- Loan paydown. Every mortgage payment includes principal. Your tenants are buying the property for you, one payment at a time. You do not see this money until you sell or refinance, but it is accruing in your equity on a fixed schedule. Nothing to project. Nothing to guess.
- Appreciation. The property grows in value over time. This is the most powerful engine on paper, and the least reliable in practice. In markets like Austin and Boise, appreciation ran 15%+ annually from 2020 to 2022, then stalled. In Cleveland and Memphis, it crept along at 3% to 4% but never fell off a cliff. The engine you can least control often contributes the most.
The formula
Total cash invested includes your down payment plus closing costs (estimated at 3% of purchase price). This matters more than you think. On a $350,000 property, closing costs add $10,500 to your real outlay. Leaving them out gives you a number that sounds good in a spreadsheet but does not match what came out of your bank account.
Worked example with the defaults
The calculator defaults to a $350,000 property with 25% down ($87,500), renting for $2,800 a month with $700 in monthly expenses, financed at 7.25% over 30 years, assuming 3% annual appreciation. Think a solid single-family in Charlotte, parts of Nashville, or a well-located duplex in Indianapolis.
| Component | Year 1 |
|---|---|
| Monthly mortgage payment | $1,791 |
| Monthly cash flow ($2,800 − $700 − $1,791) | $309 |
| Annual cash flow | $3,708 |
| Loan paydown (year 1 principal) | ~$2,540 |
| Appreciation ($350k × 3%) | $10,500 |
| Total return | ~$16,748 |
| Cash invested ($87,500 + $10,500 closing) | $98,000 |
Cash-on-cash alone would have shown 3.8%. The other two engines added over 13 percentage points. That gap is the entire reason total ROI exists as a metric.
But look at where those 13 points come from. Appreciation contributed $10,500, roughly 63% of the total return. Paydown added $2,540. The engine doing most of the work is the one you are guessing about. That is not a reason to ignore it. It is a reason to be honest about it.
The appreciation problem
Here is the uncomfortable truth about most rental ROI projections: appreciation is usually two-thirds of the number, and it is the one component you cannot verify until after the fact.
Cash flow is a bank statement. Paydown is an amortization schedule. Appreciation is a guess dressed up as a percentage. A careful guess, hopefully, but a guess.
At 3% annual appreciation, the default deal shows 17.1% total ROI. Drop appreciation to 0% and the ROI falls to about 6.4%. The deal still works, barely. It is still better than a savings account, and the paydown engine keeps running regardless. But the story changes from "strong return" to "patient wealth-building."
This is the difference between appreciation-heavy markets and cash-flow markets. A deal in Phoenix or Boise might show a spectacular total ROI, but strip out appreciation and the remaining return is thin. A deal in Cleveland or Memphis shows a more modest total ROI, but a higher percentage of it comes from cash flow and paydown. The return is smaller and more real.
The discipline is simple: run every deal at 0% appreciation first. If it survives, appreciation becomes upside. If it only works at 4% or 5% appreciation, you are making a speculation, not an investment. That can be a valid strategy, but call it what it is.
What counts as a good rental ROI
Benchmarks shift with interest rates and local dynamics, but here is a rough framework for leveraged buy-and-hold deals in today's rate environment:
| Total ROI | What it signals |
|---|---|
| Below 6% | Weak. You are likely negative on cash flow and depending on appreciation to justify the investment. Common in expensive coastal markets (San Diego, parts of LA) where investors are making a pure appreciation bet. That can work. It can also leave you feeding a property for years. |
| 6% to 11% | Moderate. Typical in markets where prices have outrun rents. The deal probably cash flows slightly positive and appreciation is doing heavy lifting. Workable if your conviction on the market is high. |
| 12% to 19% | Strong. All three engines are contributing. The deal works even if appreciation disappoints. This is the range most buy-and-hold investors in markets like Indianapolis, Kansas City, or Memphis are targeting. |
| 20% and up | Exceptional, or suspicious. Check the appreciation assumption. If it is above 4%, the number is doing too much work. If the deal genuinely shows 20%+ with conservative appreciation, buy it yesterday. |
Leveraged vs all-cash ROI
Buy the same $350,000 property with cash and there is no mortgage payment. Monthly cash flow jumps to $2,100 ($2,800 rent minus $700 expenses), and you pocket $25,200 a year. Sounds dramatically better than $3,708. But you invested $350,000 instead of $98,000.
At zero appreciation, the all-cash deal actually edges out the leveraged one. No loan means no interest bleeding off each payment. The all-cash investor sleeps better, too: no debt, no lender, no risk of a margin call from life.
Now add 3% appreciation and leverage shows its hand. The full $350,000 asset appreciates regardless of how much you financed. The leveraged investor's ROI jumps to 17.1%. The all-cash investor climbs to 10.2%. Same property, same appreciation, vastly different returns, because leverage lets you control $350,000 of real estate with $98,000 of your money.
The trade-off is risk. A 10% drop in property value wipes out about $35,000 of equity. The all-cash investor just lost 10%. The leveraged investor lost over a third of their invested capital. Leverage is an amplifier. It does not care which direction.
How ROI improves over time
Year 1 is almost always the weakest year you will own a rental. Three forces compound in your favor:
- Rents rise against a fixed payment. Even modest 2% to 3% annual rent increases compound against a mortgage payment that never changes. In year 5, the same property might rent for $3,150 while the payment is still $1,791. The cash flow gap widens every year without you doing anything.
- Paydown accelerates. Amortization is front-loaded with interest. In year 1, roughly $2,540 of your payments go toward principal. By year 10, that number is closer to $4,200. The paydown engine does not just run. It speeds up.
- Appreciation compounds on a growing base. Three percent on $350,000 is $10,500. Three percent on $470,000 (the same property in year 10) is $14,100. The dollar contribution grows even if the rate stays flat.
This is why experienced investors in markets like Birmingham, the Research Triangle, or Kansas City hold for decades. A deal that looks thin in year 1 can be genuinely exceptional by year 7, assuming the fundamentals were solid from the start. The key word is "assuming." Time amplifies good deals and bad ones alike.
ROI vs cash-on-cash vs cap rate
These three metrics measure different slices of the same deal. Using the wrong one to answer the wrong question is how investors talk themselves into, or out of, properties they should not.
| Metric | What it measures | Includes |
|---|---|---|
| Total ROI | Full return on your invested cash | Cash flow + paydown + appreciation |
| Cash-on-cash | Cash return only | Cash flow only (no paydown, no appreciation) |
| Cap rate | Property yield, ignoring financing | NOI ÷ price (no loan, no appreciation) |
Cap rate answers "is this property priced well relative to its income?" Cash-on-cash answers "how hard is my actual cash working?" ROI answers "what is my total return including the parts I cannot spend yet?" A deal in San Antonio might show a 5.5% cap rate, 3.8% cash-on-cash, and 15% total ROI. None of those numbers are wrong. They are answering different questions.
Common ROI mistakes
- Ignoring closing costs in the denominator. A $10,500 closing bill on a $350,000 property lifts your invested capital from $87,500 to $98,000. That drops the ROI by over a percentage point. It does not sound like much until you realize it is the difference between 18.2% and 17.1%, and every other assumption in the model has similar margin.
- Underwriting to best-case rent. The listing says $2,800. Zillow says $2,600. Your property manager says $2,500 to be safe. Underwrite to the conservative number. A single month of vacancy wipes out more cash flow than most investors have budgeted for, and the ROI math does not account for vacancy unless you build it into expenses.
- Treating appreciation as earned income. A 17% ROI with 10 of those points coming from appreciation is a fundamentally different deal than a 12% ROI with 8 points coming from cash flow and paydown. The first deal needs the market to cooperate. The second deal works regardless. Knowing which kind of deal you own matters more than the headline number.
- Comparing leveraged ROI to all-cash ROI. A leveraged 17% and an all-cash 10% are not comparable. The leveraged deal carries more risk per dollar of return. If you are choosing between the two, compare them at 0% appreciation to see the deals without the optimism.
Frequently asked questions
What is a good ROI on a rental property?
It depends on how much of the return you are willing to guess about. Cash-on-cash alone, 8% or above is solid. That is real money hitting your account. Total ROI including paydown and appreciation, 12% to 20% is strong for a leveraged deal. Below 8% total, you are leaning hard on appreciation to justify the investment, and that means you are betting on something you cannot control. Above 20%, either the deal is exceptional or the appreciation slider is doing too much work. Stress-test it at 0% appreciation and see what survives.
How is rental ROI different from cash-on-cash return?
Cash-on-cash only counts the cash you pocket relative to the cash you put in. Total ROI adds the two hidden engines: the principal your tenants pay down on your loan and the appreciation of the property itself. A deal in Memphis might show 3.8% cash-on-cash and look thin. Add paydown and 3% appreciation and it is suddenly 15%+. The gap between those two numbers is the story total ROI tells, and the reason investors who only look at cash-on-cash pass on deals they should buy.
Should I include appreciation in my ROI calculation?
Track it, but do not let it carry the deal. Cash flow is money in your account. Paydown is baked into the amortization schedule. Appreciation is the one you are projecting. At 3% on a $350,000 property, that is $10,500 a year, often two-thirds of total return. The discipline is to underwrite at 0% appreciation first. If the deal still works on cash flow and paydown alone, you have margin. If it needs 4% appreciation to make sense, you are one flat market away from a bad investment.
Does the calculator include closing costs?
Yes. It adds an estimated 3% of purchase price for closing costs to your total cash invested. On a $350,000 property with 25% down, that turns your $87,500 down payment into $98,000 of real money out the door. Leaving closing costs out flatters the ROI and gives you a number you will never actually experience. The honest denominator includes every dollar you wrote a check for.
Why does leveraged ROI beat all-cash ROI?
Because you control a $350,000 asset with $98,000 of your own money. The full property appreciates. The full rent comes in. But you only put up a fraction of the price. At 3% appreciation, the leveraged deal shows 17% total ROI versus about 10% all-cash. The trade-off is real: leverage amplifies losses exactly the same way. A 10% drop in value wipes out more than a third of your leveraged equity, while the all-cash investor only loses 10%. Leverage is a tool, not a free lunch.
How does ROI change over time?
Year 1 is almost always the worst. Your mortgage payment is fixed, but rents typically rise 2% to 3% a year. That gap compounds. Amortization shifts toward principal over time, so the paydown engine accelerates. And appreciation compounds on a growing base: 3% on a $350,000 property is $10,500, but 3% on that same property in year 10 (now worth $470,000) is $14,100. This is why long-term holders in markets like Charlotte or Indianapolis build wealth that looks disproportionate to the original deal.
What ROI should I target for a rental property?
For a leveraged buy-and-hold, aim for at least 12% total ROI with positive cash flow. More importantly, the deal should survive a stress test. If you need appreciation above 3% to hit 12%, the margin of safety is thin. The best deals, the ones in cash-flow markets like Cleveland or Memphis, show a respectable return even at zero appreciation. Appreciation then becomes upside, not the foundation.
Is ROI the best metric for evaluating a rental property?
It is the most complete single number, but no single metric tells the full story. Cap rate compares properties regardless of how you finance them. Cash-on-cash judges how hard your actual cash is working. DSCR tells you whether a lender will fund the deal. ROI ties them together into a total return picture. A deal can have a modest cap rate and thin cash-on-cash but still deliver a strong ROI because paydown and appreciation are doing real work behind the scenes. Use all four, not just one.