Cash-on-Cash Return Calculator
Compute cash-on-cash return for leveraged rental properties: annual cash flow ÷ total cash invested. Distinct from cap rate — factors in mortgage financing. Critical for BRRRR investors.
Cash-on-Cash Return Calculator
💰 Purchase + financing
💼 Acquisition + renovation costs
🏠 Rental income + operating expenses
How to use the Cash-on-Cash Return Calculator
Enter purchase + financing details
The CoC math separates "cash invested" (your actual money in the deal) from "loan amount" (the bank's money). Down payment: lenders require more equity on an investment property than on a primary residence — use the figure from your own loan quote. Mortgage rate: investment-property rates are priced above owner-occupier rates; again, use the quote. Term: 30 years is the US standard; a shorter term raises the payment and lowers CoC but builds equity faster.
Account for ALL cash invested
Total cash invested isn't just the down payment — include: closing costs (from the Closing Disclosure), renovation cost (anything spent before renting), inspection fees, attorney fees, and any prepaid items. CoC return divides annual cash flow by the FULL amount of money you tied up in the deal. Skipping these inputs inflates the apparent return — getting it right is crucial for honest comparison across deals.
Use realistic income + expense numbers
Gross rent: market rent (not above-market hopes). Vacancy: the submarket's actual figure, not a default. Operating expenses: taxes, insurance, management, repairs, HOA and a capital-expenditure reserve, as annual dollars. The "50% rule" — a widely used investor heuristic that operating costs plus reserves tend toward half of gross rent over a long hold — is a sanity check, not a source: if your modelled expenses are far below it, look for the missing line (a CapEx reserve is the usual omission). Mortgage interest is NOT an operating expense — it's debt service, treated separately in CoC math.
Compare to your alternative uses of capital
The "is this a good CoC?" question depends on what else you'd do with the down payment. Compare it with what the same cash would earn in a Treasury, a broad stock index fund or a listed REIT today — look those yields up on the day, because they move. For a leveraged rental to be worth it, CoC return plus expected appreciation should beat the alternative AFTER the extra work, risk and illiquidity. The advisory bands under the result (below 4% low, 4–7% moderate, 7–12% strong, above 12% check the numbers) are this tool's own scale, not a market standard.
Cash-on-cash return — the metric that lets leverage work for you
Cash-on-Cash (CoC) return is the rental-property analog to stock dividend yield, with one critical addition: leverage. CoC = Annual Cash Flow ÷ Total Cash Invested. The math separates the cash YOU put into the deal from the cash the BANK put in (via mortgage). A property bought all-cash returns its cap rate as CoC. With a mortgage the two diverge, and the direction depends on one comparison: the cap rate against the loan constant (annual debt service ÷ loan amount). If the cap rate is higher than the loan constant, borrowing lifts CoC above the cap rate — positive leverage; if it is lower, borrowing drags CoC below it. On this tool's defaults the cap rate is 6.55% and the loan constant at 7% over 30 years is 7.98%, so CoC lands at 1.8% — below the cap rate. At a 3.5% mortgage rate the same property's CoC is 8.0%. Leverage works both ways, amplifying losses as effectively as gains.
Why CoC matters more than cap rate for leveraged investors
Cap rate (unlevered yield) ignores financing — it asks "how much income would this property generate per dollar of purchase price if bought outright?" CoC (levered yield) asks "how much income am I getting per dollar of MY money?" For all-cash buyers (rare in residential rentals; common in commercial institutional), cap rate IS CoC. For leveraged buyers (most retail investors), CoC is dramatically different from cap rate, and the difference is what makes real estate attractive vs other asset classes. The leverage arithmetic: CoC = (NOI − annual debt service) ÷ (down payment + closing + renovation). On the defaults: NOI 26,200 − debt service 23,951 = 2,249 of cash flow on 125,000 invested = 1.8%. Every point the mortgage rate falls, or the cap rate rises above the loan constant, moves CoC sharply — which is why leveraged investors watch cap rates AND borrowing costs together.
Cap rate measures the property; cash-on-cash measures YOUR investment. For leveraged investors, CoC is the metric that matters — it captures how leverage amplifies (or destroys) returns.
The BRRRR strategy and the 10% CoC benchmark
BRRRR (Buy, Rehab, Rent, Refinance, Repeat) is a widely followed strategy among US retail real-estate investors. The model: buy a distressed property below market, renovate to market standard, rent it out, refinance at the new appraised value (returning your invested capital), then repeat. The CoC return AFTER the cash-out refinance is the key metric — successful BRRRR deals target CoC above 10% (some aim 15%+) AFTER refinancing has returned most of the initial capital. The rule of thumb its proponents use: buy at no more than 70% of after-repair value less renovation cost, refinance at 75% of ARV, and the refinance returns most of the cash while you keep the property and its cash flow. David Greene's Buy, Rehab, Rent, Refinance, Repeat (BiggerPockets Publishing, 2019) is the standard exposition. It works best in markets with appraisal-credit for renovation work and reasonable rental demand.
The ASEAN rental property angle
The formula works in any currency, but one input changes shape across ASEAN: acquisition cost. In Singapore, Additional Buyer's Stamp Duty (IRAS, rates from 27 April 2023) is 20% for a citizen's second residential property and 30% for a third, 5% / 30% / 35% for permanent residents, 60% for foreigners and 65% for entities — enter it in the closing-costs field and it lands in the denominator, which is why a Singapore residential rental often shows negative CoC and is held for appreciation rather than yield. Malaysia, Indonesia, Thailand, Vietnam and the Philippines each have their own transfer taxes, financing limits for non-residents and, in several cases, foreign-ownership restrictions. Put the real acquisition cost and the real borrowing rate into the fields above and compare deals on the CoC they produce, not on the headline yield.
Cash flow ÷ cash invested: the loan constant, the 50% rule and Singapore's ABSD
CoC = Annual Cash Flow ÷ Total Cash Invested. Captures how leverage amplifies (or destroys) returns. The metric for leveraged real estate investors.
Leverage helps only when the cap rate exceeds the loan constant (annual debt service ÷ loan). On the defaults: cap rate 6.55%, loan constant 7.98% → CoC 1.8%, below the cap rate.
The advisory bands are this tool's own scale: below 4% low, 4–7% moderate, 7–12% strong, above 12% verify the inputs. They are not a market benchmark.
Negative CoC = paying out of pocket every month. Common in Singapore + HK rentals where investors bet on appreciation, not yield.
Total cash invested = down payment + closing costs + renovation. Skipping reno cost inflates apparent CoC — be honest about total capital tied up.
The BRRRR strategy (Buy, Rehab, Rent, Refinance, Repeat) targets recovering most invested capital via cash-out refi — pushes CoC dramatically higher.
Leverage works both ways: at 25% down, a 10% drop in property value = 40% loss on your equity. CoC math must account for this risk.
Singapore ABSD (IRAS, from 27 April 2023): citizens 20% on a second and 30% on a third residential property; PRs 5% / 30% / 35%; foreigners 60%; entities 65%. It belongs in closing costs.
The "50% rule" assumes operating expenses = 50% of gross rent. Useful sanity check — if your model uses much less, you may be missing items (CapEx reserves are common omissions).
CoC ignores appreciation + tax benefits. Total real estate return = CoC + appreciation + tax savings + principal pay-down. CoC is just the cash-yield piece.
Frequently Asked Questions
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Depends on your alternative uses of capital and risk tolerance; there is no universal benchmark. The tool's advisory bands are: below 4% low — only an appreciation bet justifies it; 4–7% moderate; 7–12% strong; above 12% either an exceptional deal or an input that needs checking. Compare the result with the current yield on a Treasury, a broad index fund and a listed REIT, then decide whether the gap pays for the work, the illiquidity and the leverage risk.
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Use both. Cap rate is the property's intrinsic yield (unlevered) — useful for comparing properties on equal terms regardless of how each buyer finances. CoC is YOUR specific return given YOUR financing — useful for deciding if YOUR deal makes sense. Cap rate screens; CoC commits. For institutional all-cash buyers, cap rate = CoC. For retail leveraged buyers, CoC is what matters for decision-making.
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CoC is intentionally a CASH metric — it captures only realized cash flow. Appreciation is unrealized (paper) until you sell. Total real estate return adds CoC + appreciation + principal pay-down + tax benefits, but each is fundamentally different. Conservative investors emphasise CoC (real cash); aggressive investors emphasise total return including appreciation. Both have merit. For your overall analysis, model CoC + expected appreciation rate separately, then add — but don't conflate them.
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Significant in some jurisdictions. US rental properties: depreciation deductions can shelter much of rental income from tax; cost segregation studies accelerate this. Mortgage interest is deductible. Singapore: rental income taxed at progressive rates; expenses deductible. Malaysia / Indonesia: similar deductions allowed. Australia: negative gearing rules allow rental losses to offset other income — a major attraction historically. Tax shelter is real but jurisdiction-specific; consult local tax advisors. This calculator focuses on pre-tax CoC; multiply by (1 − marginal tax rate on rental income) for after-tax view.
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CapEx (capital expenditures — roof, HVAC, water heater, major systems) is the line most retail investors under-model. Take each system's replacement cost from a contractor quote, divide by its remaining life in years, and add the total to the annual operating-expenses input as a reserve. Without CapEx reserves, your CoC looks great for 5-10 years, then ONE big repair wipes out years of cash flow. Professional property managers + bank-style underwriting always include CapEx reserves.
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Massively — and you can see it on the defaults. At a 7% mortgage rate the USD 300,000 loan costs USD 23,951 a year and CoC is 1.8%; change the rate to 3.5% and debt service falls to USD 16,166, cash flow rises to USD 10,034 and CoC to 8.0%. Same building, same rent — the rate did all of that. For variable-rate mortgages (uncommon for residential, common for commercial), the math gets riskier — you're betting on rates staying low. Fixed-rate 30-year mortgages on residential rentals provide stability; commercial loans often have 5-7 year balloon resets that re-expose you to rate risk.
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Yes, but it's harder than the BiggerPockets podcasts make it sound. Key requirements: (1) Buy 30%+ below market value (hard — competitive deal-finding). (2) Renovation costs come in at budget (also hard — overruns common). (3) Appraisal credits the renovation work at refinance (depends on lender + property). (4) Strong rental market for stable income. When all four align, BRRRR produces high CoC on the small amount of cash left in the deal. When any one breaks down — the appraisal comes in low, the renovation overruns, the market softens — capital stays trapped and CoC collapses. Model the refinance conservatively: assume the appraisal credits less of the work than you hope.
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Three reasons. (1) Prices have risen faster than rents over a long period, so gross yields are low relative to most Western markets. (2) Additional Buyer's Stamp Duty — 20% for a citizen's second residential property, 30% for a third, 60% for foreigners (IRAS, from 27 April 2023) — goes straight into the cash-invested denominator. (3) Non-owner-occupied residential property is taxed at higher progressive rates than an owner-occupied home (IRAS). The combined effect: many Singapore landlords carry negative CoC and hold for appreciation. Enter the ABSD in closing costs and the tool will show you exactly how far it pushes the return down.
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No. All calculations run entirely in your browser via JavaScript. There's no server roundtrip — open DevTools → Network and confirm zero outbound requests. Your property data stays on your device. Safe for confidential deal analysis, BRRRR planning, or any sensitive real estate data.
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Both, weighted by your situation. If you need the cash flow now (retirees, supplemental-income seekers): prioritise CoC and treat a result in the tool's "low" band as a warning. If you don't need cash flow and are buying for appreciation: a low CoC is tolerable, but it means the return depends entirely on the exit price. If you want both: you are usually choosing between a high-price market with low current yield and a lower-price market with higher yield and slower growth; run each candidate through the tool and compare CoC alongside your own appreciation assumption.
Method & sources
How it computes
Cash-on-cash return = annual pre-tax cash flow ÷ total cash invested, where cash flow = NOI − annual debt service, NOI = gross rent × (1 − vacancy %) − operating expenses, debt service = 12 × the level monthly payment on (price − down payment) at the entered rate and term, and cash invested = down payment + closing costs + renovation. The unlevered cap rate (NOI ÷ price) is shown alongside for comparison.
What this tool implements
- Equity dividend rate (cash-on-cash) = pre-tax cash flow ÷ equity invested, as defined in The Appraisal of Real Estate (Appraisal Institute)
- Standard US level-payment amortisation for debt service; first-year figures only, no principal paydown, appreciation or tax credited
- Advisory bands are the tool's own scale (<4% low, 4–7% moderate, 7–12% strong, ≥12% verify), stated as such on the page
- Positive leverage is explained via the loan constant (annual debt service ÷ loan) against the cap rate
Sources
- Appraisal Institute. The Appraisal of Real Estate. 15th ed. Chicago: Appraisal Institute; 2020. (Equity dividend rate; direct capitalisation.)
- Inland Revenue Authority of Singapore. Additional Buyer's Stamp Duty (ABSD) rates on or after 27 April 2023. https://www.iras.gov.sg/taxes/stamp-duty/for-property/buying-or-a…)
- Greene D. Buy, Rehab, Rent, Refinance, Repeat: The BRRRR Rental Property Investment Strategy Made Simple. BiggerPockets Publishing; 2019.
What can make this go out of date
- Singapore ABSD rates quoted in the prose — set by MOF/IRAS and changed by cooling-measure announcements (last on 27 April 2023)
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