Cash-on-Cash Return Calculator
Model stabilized rent, operating expenses, acquisition cash, and a fixed-rate amortizing loan, then read cash-on-cash next to cap rate to see how financing changes your yield.
100% client-side. Inputs stay in your browser (ons-cash-on-cash-inputs).
Pair NOI with a fully amortizing mortgage, then read cash-on-cash on actual cash invested next to an unlevered cap rate benchmark.
This property generates $833 per year in cash after operating expenses and mortgage (pre-tax).
Cash-on-cash
1.51%
Annual pre-tax cash flow ÷ cash invested at acquisition.
Cap rate (same NOI)
6.72%
NOI ÷ purchase price, ignores financing.
Financing effect: -5.21 pts vs cap. Financing is reducing your return, your mortgage cost likely swamps the cap rate you are buying.
NOI
$16,800
Annual cash flow
$833
Annual debt service
$15,967
$1,331/mo P&I
Total cash invested
$55,000
Down payment + closing + rehab
Cash flow breakdown
Compare NOI to full annual debt service; the net bar is what feeds cash-on-cash.
Loan balance modeled: $200,000 · Effective gross income $22,800 after $1,200 vacancy loss.
How does the Cash-on-Cash Return Calculator work step by step?
This calculator computes cash-on-cash return, which measures the annual cash flow from a rental property as a percentage of the cash you invested (down payment plus closing costs). It divides annual pre-tax cash flow (rental income minus all expenses including mortgage payments) by total cash invested. Unlike cap rate or rental yield, cash-on-cash return accounts for leverage: it shows your actual equity return when you finance the property with a mortgage. A 10% cash-on-cash return means you earn $10 per year for every $100 of cash you put into the deal.
When should you use the Cash-on-Cash Return Calculator?
Use this calculator when evaluating rental properties with mortgage financing to see your actual equity return. It is especially useful when comparing properties with different down payment requirements or when deciding whether to use a lower down payment (higher leverage) or a higher down payment (lower debt risk). The tool helps you see how leverage amplifies or dampens returns: if the cap rate is higher than your mortgage rate, leverage increases your cash-on-cash return. If the cap rate is lower than your mortgage rate, leverage decreases it. The calculator is also useful for comparing rental real estate to other investments on an equity-return basis.
How do you read the Cash-on-Cash Return Calculator results?
A cash-on-cash return above 8-12% is typically considered strong for leveraged rental properties. Returns below 5% suggest the property is not generating sufficient income relative to your equity investment, unless you expect significant appreciation. The calculator shows how leverage affects returns: a 6% cap rate property with a 5% mortgage rate generates a higher cash-on-cash return than the cap rate because cheap debt amplifies equity returns. If the mortgage rate exceeds the cap rate, leverage works against you and cash-on-cash return falls below the cap rate. Compare the cash-on-cash return to your next-best investment option (stocks, bonds, other real estate) to decide whether the deal is worth your capital.
What does a typical Cash-on-Cash Return Calculator result look like?
Purchase price: $400,000. Down payment (25%): $100,000. Closing costs: $10,000. Total cash invested: $110,000. Loan: $300,000 at 6% interest, 30-year amortization. Annual debt service: $21,600. Gross rental income: $36,000. Operating expenses: $12,000. Net operating income: $24,000. Annual cash flow: $24,000 - $21,600 = $2,400. Cash-on-cash return: $2,400 / $110,000 = 2.2%. This is a weak return because the mortgage rate (6%) is close to the cap rate (6%), leaving little room for cash flow after debt service. If you put 50% down ($200,000), debt service drops to $14,400, annual cash flow rises to $9,600, and cash-on-cash return rises to 4.8% ($9,600 / $210,000 total invested).
Frequently asked questions
What is the difference between cash-on-cash return and cap rate?
Cap rate measures unleveraged return (as if you paid cash), while cash-on-cash return measures leveraged return (your actual equity yield when you finance with a mortgage). Cap rate divides net operating income by property value. Cash-on-cash return divides annual cash flow (after debt service) by cash invested. Cap rate is useful for comparing properties independent of financing. Cash-on-cash return is useful for comparing actual equity returns. The OnSumo cap rate calculator can help you calculate unleveraged returns for comparison.
What is a good cash-on-cash return for a rental property?
A good cash-on-cash return ranges from 8-12% for leveraged rental properties. Returns below 5% suggest the property is not generating sufficient cash flow relative to your equity, unless you expect strong appreciation or significant tax benefits. Returns above 15% are possible in high-yield markets or with high leverage, but often come with higher risk, lower-quality properties, or higher vacancy. Compare your cash-on-cash return to alternative investments (stocks average 10% long-term, bonds 4-6%) and to other rental properties in your market to gauge whether the deal is competitive.
How does leverage affect cash-on-cash return?
Leverage amplifies equity returns when the cap rate exceeds the mortgage rate, and dampens returns when the mortgage rate exceeds the cap rate. For example, a 7% cap rate property financed at 5% interest generates a cash-on-cash return above 7% because the 2% spread accrues to equity. A 5% cap rate property financed at 7% interest generates a cash-on-cash return below 5% and may produce negative cash flow. Higher leverage (lower down payment) increases cash-on-cash return when the spread is positive, but also increases risk and monthly payment obligations.
Should I maximize leverage to increase cash-on-cash return?
Only if the cap rate exceeds the mortgage rate by a comfortable margin (at least 1-2 percentage points). Maximizing leverage increases cash-on-cash return but also increases monthly payment obligations, reduces margin for error, and increases foreclosure risk if the property goes vacant. In rising interest rate environments, high leverage can turn positive cash flow into negative cash flow if you refinance at a higher rate. Most experienced investors use 20-30% down to balance cash-on-cash return with risk, rather than maximizing leverage with 5-10% down.
Does cash-on-cash return include appreciation or tax benefits?
No, cash-on-cash return measures pre-tax cash flow only. It excludes appreciation, mortgage principal paydown, and tax deductions (depreciation, mortgage interest). Total return includes all four components: cash flow, appreciation, principal paydown, and tax savings. A property with 5% cash-on-cash return, 3% appreciation, 2% principal paydown, and 2% tax benefit equivalent delivers 12% total return. Use cash-on-cash return to measure current income and total return to measure overall investment performance.
What is negative cash flow and how does it affect cash-on-cash return?
Negative cash flow occurs when rental income does not cover all expenses including mortgage payments, forcing you to subsidize the property each month out of pocket. Negative cash flow produces a negative cash-on-cash return. For example, if you invest $100,000 and lose $2,400/year in cash flow, your cash-on-cash return is -2.4%. Investors tolerate negative cash flow only when they expect strong appreciation or plan to increase rents significantly. Most buy-and-hold investors target positive cash flow from day one to avoid subsidizing the property.
How do I calculate annual cash flow for cash-on-cash return?
Annual cash flow is gross rental income minus all operating expenses (property tax, insurance, maintenance, management, vacancy) minus mortgage payments (principal and interest). For example, $36,000 rent - $12,000 operating expenses - $21,600 debt service = $2,400 annual cash flow. Do not subtract income tax or capital improvements in the cash-on-cash calculation; those are accounted for separately in total return. The OnSumo rental ROI calculator can help you estimate all expenses and cash flow.
Can I improve cash-on-cash return after buying the property?
Yes, by increasing rent or reducing expenses. Raising rent by $100/month adds $1,200/year to cash flow. If you invested $100,000, that is a 1.2 percentage point increase in cash-on-cash return. Reducing property tax (via appeal), switching to a cheaper insurance carrier, or self-managing instead of paying a property manager also increases cash flow. Refinancing to a lower rate reduces debt service and increases cash flow, but may require closing costs that offset the gain. Track actual cash flow annually and compare to your pro forma to identify improvement opportunities.
Should I use cash-on-cash return or IRR to evaluate rental properties?
Use cash-on-cash return for simple annual comparisons and IRR (internal rate of return) for multi-year total return analysis. Cash-on-cash return measures a single year's cash flow as a percentage of invested capital. IRR measures annualized total return over the holding period, including cash flow, appreciation, principal paydown, and sale proceeds. IRR is more comprehensive but requires assumptions about future rent growth, appreciation, and exit timing. Most investors start with cash-on-cash return for quick screening and use IRR for final investment decisions.
How does cash-on-cash return change if I refinance the property?
Refinancing changes your cash invested and debt service, which changes cash-on-cash return. If you do a cash-out refinance and pull $50,000 out, your cash invested drops by $50,000 but your debt service increases. If you pull enough cash out, your cash-on-cash return can approach infinity if cash invested drops to zero or negative. If you refinance to a lower rate without pulling cash out, your debt service drops, annual cash flow increases, and cash-on-cash return increases. The OnSumo BRRRR calculator can help you model refinance scenarios and their impact on equity returns.