You Put $100,000 Down on a Rental Property, But What's Your Actual Annual Return?
Down payment alone doesn't tell you how hard that money works for you. Cash-on-cash return is the metric that separates return from pie-in-the-sky projections. It shows the actual percentage return on the cash you invested, factoring in your mortgage, operating expenses, and the real cash flow hitting your bank account. This calculator converts your investment into a percentage return, making it easy to compare against other deals, stocks, or bonds.
What This Calculator Does
Cash-on-cash return (COCR) measures how much annual cash profit your invested down payment generates, expressed as a percentage. Unlike cap rate (which divides net income by total property value), cash-on-cash return divides annual cash flow by your actual cash invested (down payment, closing costs, repairs, etc.). This matters because real estate is typically leveraged-you use a mortgage to control more property with less cash. A 5% cap rate property might generate a 12% cash-on-cash return if you put down 25% and get favorable financing. This calculator helps you compare properties on a return-on-cash basis, which is what actually matters for your investment account.
How to Use This Calculator
Start by entering the annual pre-tax cash flow your property generates (gross rent minus all operating expenses and debt service). Then input your total cash invested-this includes down payment, closing costs, inspection fees, appraisal, and any money you spent on repairs or upgrades before renting. The calculator divides cash flow by total cash invested and converts to percentage. A 10% COCR means every dollar you invested returns 10 cents annually. Compare this number across different properties, or compare it to your opportunity cost-could that $100,000 earn more in stocks, bonds, or another investment? You want to see positive COCR; negative means the property cash-flows negative and you're losing money monthly.
The Formula Behind the Math
Cash-on-cash return has one formula, though calculating the components takes work:
Cash-on-Cash Return = (Annual Pre-Tax Cash Flow / Total Cash Invested) × 100
Annual Pre-Tax Cash Flow = (Gross Annual Rent - Operating Expenses - Debt Service)
Let's work through a realistic rental property example. You buy a property for $400,000 with 25% down ($100,000) plus $5,000 in closing costs and inspection fees. Total cash invested: $105,000. You get a 30-year mortgage for $300,000 at 6% interest, with annual debt service (principal + interest) of $21,600. The property generates $36,000 in annual gross rent. Operating expenses (taxes, insurance, maintenance, management, vacancy) total $8,400. Pre-tax cash flow is $36,000 - $8,400 - $21,600 = $6,000. Cash-on-cash return is ($6,000 / $105,000) × 100 = 5.71%.
Now let's see how leverage amplifies returns. The same property's cap rate (NOI divided by full value) is ($36,000 - $8,400) / $400,000 = 6.9%. But your COCR is only 5.71% because you're paying mortgage interest, which is higher in the early years. However, if you'd bought for all-cash at the same property value, you'd need to invest $400,000 to get $27,600 in annual pre-tax cash flow (no debt service). Your all-cash COCR would be 6.9%—actually higher than your leveraged 5.71%. The trade-off: leverage lets you buy multiple properties with the same capital, even if each one's COCR is slightly lower. Our calculator does all of this instantly-but now you understand exactly what it's computing.
Fix-and-Flip Deal Evaluation
You buy a house for $200,000, invest $40,000 in renovations, and sell it six months later for $280,000. Total invested: $240,000. Selling costs (realtor commission, closing) run 7% of sale price: $19,600. Net proceeds: $280,000 - $240,000 (invested) - $19,600 (selling costs) = $20,400. But this is total profit over six months-to annualize it for comparison to rentals, you'd double it (two flips per year) to $40,800, giving a $240,000 investment a 17% annualized COCR. That's excellent-but it's not cash flow. The money is tied up for months, and you can't count on two flips a year reliably.
Comparing Leveraged vs. All-Cash Purchases
Property A: $500,000 rental. You pay all cash. Operating costs eat $8,000/month, rent is $3,500/month. Annual net cash flow (no debt service): $3,500 × 12 - ($8,000 × 12) = -$54,000. Negative COCR-you're losing money. Not a buy.
Property B: Same $500,000 rental, but you put down 30% ($150,000), finance $350,000 at 6%, 30-year term. Annual debt service: $25,200. Rent is now $5,000/month (better property or better market). Operating costs are $8,500/month. Annual cash flow: ($5,000 × 12) - ($8,500 × 12) - $25,200 = $60,000 - $102,000 - $25,200 = -$67,200. Still negative. Don't buy this either.
Property C: $350,000 rental, 30% down ($105,000), finance $245,000 at 6%. Debt service: $17,640. Rent $3,000/month, operating costs $7,500/month. Cash flow: $36,000 - $90,000 - $17,640 = -$71,640. Negative again. The issue: rents don't cover expenses plus debt service in this market. Look elsewhere.
Property D: $300,000 rental, 25% down ($75,000 plus $3,000 in closing = $78,000 invested), finance $225,000 at 6%. Debt service: $16,200. Rent $2,800/month, operating $6,000/month. Cash flow: $33,600 - $72,000 - $16,200 = -$54,600. Still negative. This illustrates a hard truth: not every property is a buy. Many don't cash-flow even with leverage.
Property E: $250,000 rental, 20% down ($50,000 plus $2,500 closing = $52,500 invested), finance $200,000 at 5.5%, 30-year. Debt service: $12,800. Rent $2,000/month, operating $4,500/month. Cash flow: $24,000 - $54,000 - $12,800 = -$42,800. Still negative. The math here is brutal-this market doesn't work for rentals on this price point.
Let's flip it. Property F: $200,000, 20% down ($40,000 + $2,000 = $42,000 invested), finance $160,000 at 5.5%. Debt service: $10,240. Rent $1,600/month, operating $3,200/month. Cash flow: $19,200 - $38,400 - $10,240 = -$29,440. Still negative!
The shift: Property G: $180,000, 20% down ($36,000 + $1,800 = $37,800), finance $144,000 at 5.5%. Debt service: $9,216. Rent $1,500/month, operating $3,000/month. Cash flow: $18,000 - $36,000 - $9,216 = -$27,216. Still negative.
Finally: Property H: $150,000, 25% down ($37,500 + $1,500 = $39,000), finance $112,500 at 5%, 30-year. Debt service: $6,400. Rent $1,400/month, operating $2,400/month. Cash flow: $16,800 - $28,800 - $6,400 = $1,600. Positive! COCR: ($1,600 / $39,000) × 100 = 4.1%. Finally a cashflow-positive property. The lesson: location, price point, and rent-to-value ratio determine whether a property works. High-priced markets often don't support positive cash flow; secondary and tertiary markets do.
Rental Property Held for Long-Term Appreciation
You buy a property in an appreciating area for $320,000, put down 25% ($80,000), finance $240,000 at 6%, 30-year. Debt service: $17,280. Rent is $2,200/month, operating costs $4,200/month. Cash flow: $26,400 - $50,400 - $17,280 = -$41,280. Negative COCR initially-this property doesn't cash-flow. But the market appreciates 5% annually. After five years, it's worth $408,000 and appreciates by $88,000. Your total return (appreciation + cash flow, negative) is actually positive when you factor in principal paydown ($18,000) and appreciation. This works if you're betting on long-term appreciation in a strong market, but it's riskier than cash-flowing properties.
Tips and Things to Watch Out For
Don't confuse cash-on-cash return with cap rate. Cap rate uses total property value as the denominator; COCR uses your actual cash invested. A property with 5% cap rate and 25% down will have roughly 20% COCR (depending on loan terms). They tell different stories. Cap rate tells you the property's inherent yield; COCR tells you your personal return on the capital you deployed.
Annual cash flow matters more than total cash invested for COCR, but both matter separately. A property generating $5,000/year cash flow on $50,000 invested has 10% COCR. A property generating $5,000/year on $100,000 invested has 5% COCR. The second property is still good—5% beats many investments-but the first is better. Look for high annual cash flow relative to your investment.
COCR doesn't account for principal paydown. As your mortgage amortizes, you're building equity even if cash flow is zero. Principal paydown is a form of return, especially relevant for long-term holds. A property with 2% COCR that's paying down $8,000/year in principal might actually deliver 10%+ total return when you factor in principal reduction.
Tax benefits matter but vary by situation. Depreciation deductions, mortgage interest deductions, and operating expense deductions can significantly improve your after-tax returns. A property with negative cash flow might show positive taxable income (or vice versa) depending on depreciation. Work with a CPA to understand your tax position.
COCR assumes stable rents and expenses. If rents fall, vacancy rises, or you face unexpected capital expenses, COCR declines fast. Always build in safety margin-aim for properties with 8%+ COCR, not 3-4%, because life happens.
Financing terms dramatically affect COCR. A 6% mortgage over 30 years gives much higher COCR than a 7% mortgage over 25 years, all else equal. When comparing properties, use realistic financing assumptions. Don't assume you'll get rates that are unavailable in the current market.
This calculator provides estimates for informational purposes only and is not financial advice.
Frequently Asked Questions
What's a good cash-on-cash return?
It depends on your market and risk tolerance. 8-12% is excellent for stabilized rentals in moderate markets. 5-8% is solid. Below 5% is acceptable only if you expect significant appreciation or have other reasons (strategic location, tenant quality). Above 15% is rare and might signal higher risk or a market with weaker appreciation potential.
How does COCR differ from cap rate?
Cap rate divides net operating income by the property's total purchase price. COCR divides annual cash flow (after debt service) by your actual cash invested. If you put 25% down, COCR is roughly four times higher than cap rate because you're leveraging. They measure different things: cap rate shows the property's return; COCR shows your personal return on your cash.
Should I use gross rent or net rent in the calculation?
Use net rent (after operating expenses and debt service) to calculate cash flow. This is the money actually hitting your account. Some definitions use gross rent, but that's misleading because it ignores the costs you actually pay.
What if my COCR is negative?
The property doesn't cash-flow; you lose money monthly. This might be acceptable if you're betting on appreciation (strong market, new construction, etc.), but it's riskier than cash-flowing properties. In stable markets, negative COCR is a pass.
How do I calculate total cash invested?
Add down payment, closing costs, inspection, appraisal, title insurance, and any repairs or improvements made before renting. This is all the cash out of pocket to get the property generating income.
Does COCR account for principal paydown?
No. The formula only uses cash flow. However, principal paydown is a separate return component. A property with 2% cash COCR that's paying down $8,000 annually in principal might deliver 10%+ total return including equity buildup. Some investors model both separately.
How do I compare COCR across different deal types?
COCR for rentals is annual and ongoing. COCR for fix-and-flip needs annualization if the deal closes in less than a year. A $50,000 profit on a six-month deal should be annualized (doubled) to compare to an annual rental return. This makes rental and flip returns somewhat comparable.
Related Calculators
The cap rate calculator shows the property's inherent return before financing. The rental yield calculator calculates gross and net yield to help identify cashflow-positive markets. The BRRRR calculator uses cash-on-cash return concepts to model the buy-rehab-rent-refinance-repeat strategy. The ROI calculator generalizes COCR to any investment scenario.