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Cash-on-Cash Return Calculator
Cash-on-Cash Return Calculator
Cash-on-Cash Return
4.92%
Return Analysis
After the 20% down payment of $80,000 and $12,000 in closing costs, your total cash invested is $92,000. The property nets $28,800 of NOI, and after $24,271.41 of mortgage payments, you keep $4,528.59 a year — a 4.92% cash-on-cash return.
*Assumes the stated loan terms, full occupancy, and principal-and-interest financing only. Excludes vacancy beyond rent assumptions, income taxes, and appreciation. Educational only, not investment advice.
What Your Cash Actually Earns on a Leveraged Rental
A rental property's price is only partly yours — the mortgage funds the rest. Cash-on-cash return answers the question that matters to the buyer: how much annual pre-tax cash flow does the property produce for every dollar of cash you personally put in, including the down payment and closing costs? Buy a 400,000 dollar house with 80,000 dollars down plus 12,000 dollars of closing costs and collect 10,800 dollars of after-mortgage cash flow, and your money is earning about 11.7 percent a year, even though the property itself may only yield 6 percent unlevered. This is why the metric anchors American rental-property decisions. The S&P 500's long-run return is about 10 percent a year with no effort; any rental an investor buys with financing should clear a premium over that to justify vacancies, maintenance, and management. Cash-on-cash also exposes leverage's double edge: the same mortgage that magnifies a good deal from 6 percent to 12 percent can drag a marginal deal into negative territory when rates rise. With mortgage rates in the 6-to-7 percent range, the difference between a property that cash flows and one that bleeds often comes down to a few hundred dollars of monthly rent — which is exactly what this calculation surfaces before signing anything.
After-Debt Cash Flow Over Cash Invested
Two sides of a fraction. The denominator is every dollar of cash that leaves your account at closing: the down payment (price times down-payment percentage) plus closing costs — title, appraisal, loan fees, inspections, and prepaids. The numerator is built in layers: annual gross rent minus operating expenses (taxes, insurance, maintenance, management, vacancy reserve) equals net operating income; then subtract annual debt service, the total of all twelve mortgage payments, to reach annual cash flow. Cash-on-Cash = Annual Cash Flow ÷ Total Cash Invested × 100. The mortgage payment uses the standard amortization formula: P × r ÷ (1 − (1 + r)^−n), where P is the loan amount, r the monthly interest rate, and n the number of monthly payments. A 320,000 dollar loan at 6.5 percent over 30 years runs about 2,023 dollars a month. Note what the ratio excludes: principal paydown, appreciation, and tax benefits — real wealth-builders, but hard to guarantee. Cash-on-cash measures only the income you can bank on today, which is precisely what makes it a conservative anchor: deals that clear your hurdle on cash flow alone get every tailwind for free.
Expert Insights
Set a Hurdle Above the Stock Market, Not Above Zero
Any positive cash flow feels like a win until you remember what it competes against. An index fund returns about 10 percent a year with zero toilets and zero tenants. Most experienced rental investors demand a cash-on-cash hurdle of 8 to 12 percent to compensate for leverage risk, concentration, and effort. If a deal returns 4 percent cash-on-cash, you are taking landlord risk for less than the market pays passive owners. The hurdle rate is what turns 'this rents for more than the mortgage' into an actual investment decision.
Leverage Magnifies Both Directions — Model the Rate You'll Actually Get
The same 20 percent down payment that lifts a 6 percent cap-rate property to 11 percent cash-on-cash can crush a 5 percent one into negative returns at a higher loan rate. Run the calculator with your actual quoted rate, then with one point more. If the return collapses across that range, the deal's viability is a rate bet, not a property bet. Professional buyers treat debt-service sensitivity as part of underwriting precisely because the mortgage is the variable they control least after closing.
Cash-on-Cash Versus Cap Rate Tells the Leverage Story
Compare the two outputs this calculator produces: when cash-on-cash comfortably exceeds the cap rate, leverage is working — you borrowed at less than the property earns and pocketed the spread (positive leverage). When the loan rate exceeds the cap rate, leverage is negative: the mortgage costs more than the property earns, and every borrowed dollar reduces your return. In a 6 percent rate environment, buying a 5 percent cap property with financing is structurally paying for the privilege. The spread between the two numbers is the cleanest read on whether financing is helping or hurting.
Actionable Tips
- 1
Underwrite Expenses With a Margin Before Trusting the Return
Seller-provided expense figures routinely understate reality — no line for vacancy, optimistic maintenance, and insurance from a better era. Re-run this calculator with operating expenses 15 percent higher and the current quoted insurance premium. If the cash-on-cash return still clears your hurdle, the deal has a genuine margin of safety. If it goes negative, you have just learned what the seller's number was hiding, before it was your problem.
- 2
Include Closing Costs in Every Comparison
Two otherwise identical deals can rank differently once closing costs enter the denominator. A 12,000 dollar closing-cost package on a 400,000 dollar property drops cash-on-cash meaningfully versus an all-in financed purchase with 5,000 dollars of costs — because the down payment is the same but total cash invested is not. Investors who skip the closing costs consistently overestimate their returns. Every dollar that leaves your account at closing belongs in the denominator.
- 3
Re-Run the Numbers Every Time the Loan Terms Change
A quarter-point rate difference, a shift from 30 to 25 years, or a PMI requirement all move annual debt service by hundreds or thousands — enough to flip a deal across your hurdle. Before final financing, rebuild the calculation with the exact terms on the loan estimate. The same discipline applies at refinance: when rates fall, re-run the math and capture the improved cash-on-cash by refinancing, or confirm the current loan is still the best structure.
Real-World Examples
Angela Walked Away From a 'Cash-Flowing' Deal
Angela found a single-family rental listed with a projected 8.9 percent cash-on-cash return — until she rebuilt the inputs: the insurance quote was 40 percent higher than the listing claimed, and the property manager quoted 9 percent instead of the assumed 6 percent. Her version of the calculator returned 5.1 percent against a 6.5 percent loan — negative leverage. She passed; three months later the property sat with a tenant turn and a price cut. The spreadsheet she walked away with was worth more than the keys.
The Garcias Found Their Spread in a Bigger Down Payment
The Garcias had extra cash and were choosing between two down-payment sizes on a 280,000 dollar duplex. At 20 percent down their cash-on-cash was 6.2 percent; at 25 percent it rose to 7.4 percent because the smaller loan cut debt service faster than the extra invested cash reduced the return. The loan rate of 7 percent sat above the building's 6.4 percent cap, so every dollar of mortgage was costing them. They put down 25 percent, hit their hurdle, and bought their next property with the freed monthly cash flow.
Tom's Fourplex Taught Him the Tailwind Side
Tom bought a 650,000 dollar fourplex with 30 percent down at 6.75 percent, banking on a 9.8 percent cash-on-cash return and no more. Over four years, rents climbed 18 percent with no change to his fixed payment, lifting his cash-on-cash on original cost past 13 percent while the loan paid down 32,000 dollars and the property appreciated modestly. The cash flow got him in the door; the fixed mortgage converted every rent increase directly into return. That asymmetry is the reason he now owns seven units.
Glossary of Terms
- Cash-on-Cash Return
- Annual pre-tax cash flow divided by total cash invested (down payment plus closing costs) — the current income yield on your own money in a financed purchase.
- Debt Service
- The total of all mortgage payments in a year, principal and interest combined, subtracted from net operating income to reach cash flow.
- Positive Leverage
- When a property earns more than its mortgage costs, so borrowed money raises the investor's cash return above the unlevered cap rate.
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Ivy Sinclair-Wren
Financial Chaos Analyst
Ivy Sinclair-Wren is a Financial Chaos Analyst covering investing, AI, wealth psychology, and the emotional consequences of opening finance apps during market crashes. Based in Melbourne, she specializes in demystifying the US tax code and helping users navigate the intersection of spreadsheet logic and human irrationality.