Rental Property ROI Calculator
Calculates the return on investment of a rental property from its net operating income (rent minus operating expenses) relative to your total cash invested. It shows the percentage annual return your money is earning on the deal.
Last updated: May 2026
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About this calculator
Return on investment (ROI) for a rental property measures the annual income the deal produces as a percentage of the money you put in. This calculator uses net operating income (NOI) — annual rent minus annual operating expenses — divided by your total cash invested, times 100. If a property collects $24,000 in rent, costs $9,000 a year to operate, and required $150,000 of your cash, the NOI is $15,000 and the ROI is 10%. Operating expenses should include property taxes, insurance, maintenance and repairs, property-management fees, HOA dues, and a realistic vacancy allowance — but, in the NOI definition, not mortgage principal and interest, which are financing costs. "Total cash invested" depends on how you frame the deal: for an all-cash purchase it is the price plus closing and renovation costs; for a financed purchase, many investors use only the cash actually outlaid (down payment plus closing and rehab), which turns this into a cash-on-cash style return and explains why leveraged deals can show much higher percentages. Be explicit about which you mean so the ROI is comparable across properties. A healthy rental ROI varies by market and strategy, but many investors target high single digits to low double digits on a net basis. This metric does not capture appreciation (the property’s rising value), loan paydown (equity you build as tenants cover the mortgage), or tax benefits like depreciation — all of which add to true total return. Use it to compare the income efficiency of deals, then layer in those other components for the full investment picture.
How to use
Example 1 — Financed rental (cash-on-cash style). A property rents for $24,000/year, costs $9,000/year to run, and you invested $150,000 in cash (down payment plus costs). Enter 24000, 9000, and 150000. Result: 10%. Verify: 24,000 − 9,000 = 15,000 NOI; 15,000 ÷ 150,000 = 0.10; × 100 = 10%. ✓ Example 2 — All-cash purchase. You buy a $200,000 property outright, it rents for $18,000/year with $6,000/year in expenses. Enter 18000, 6000, and 200000. Result: 6%. Verify: 18,000 − 6,000 = 12,000; 12,000 ÷ 200,000 = 0.06; × 100 = 6%. ✓ Lower than the financed example because all the capital is yours.
Frequently asked questions
What counts as operating expenses?
Operating expenses are the recurring costs of running the property: property taxes, insurance, routine maintenance and repairs, property-management fees, HOA or strata dues, utilities you pay, and a vacancy allowance for periods between tenants. In the strict net-operating-income definition used here, they do not include mortgage principal and interest (a financing cost) or capital improvements that add long-term value, like a new roof. A common beginner mistake is to underestimate maintenance and forget vacancy — budgeting nothing for empty months makes ROI look far better than reality. A practical rule is to assume maintenance plus vacancy together consume a noticeable slice of gross rent, often 10–20%.
Should total investment include the mortgage or just my cash?
It depends on what you want to measure, and you must be consistent. If you enter the full property price (plus costs), the result is a simple ROI on the asset, ignoring leverage. If you enter only the cash you actually put in — down payment plus closing and renovation costs — the result behaves like a cash-on-cash return and will be higher because leverage amplifies returns on your own money. Most active investors use the cash-invested version to gauge how hard their own capital is working. Whichever you pick, use the same basis across every property you compare, or the percentages are not comparable.
Does this ROI include appreciation and loan paydown?
No. This calculator measures only the income return — net rental income relative to investment. It deliberately excludes three other major sources of real estate return: appreciation (the property rising in value), loan amortisation (the equity you gain as tenants effectively pay down your mortgage), and tax advantages such as depreciation deductions. Together those can add several percentage points to your true total return, which is why a property with a modest income ROI can still be an excellent long-term investment. To assess total return, combine this figure with a property-appreciation projection and your loan-paydown schedule.
What mistakes inflate rental ROI calculations?
The most common is understating expenses — forgetting vacancy, skimping on maintenance reserves, or omitting management fees because you plan to self-manage (your time has value). Another is using optimistic, above-market rent rather than achievable rent. Mixing the financing basis is a subtle error: comparing one property’s ROI on cash invested with another’s on full price makes the leveraged one look artificially better. People also forget closing and renovation costs in the total investment, understating the capital base and overstating ROI. Finally, ignoring irregular big-ticket repairs (roof, HVAC) makes early-year returns look unsustainably high.
When is ROI the wrong metric for a rental?
ROI alone is misleading when appreciation is the main goal, as in fast-growing markets where investors accept low income returns for expected value gains — here, total return matters more. It is also insufficient for comparing financed deals, where cash-on-cash return and debt-service-coverage ratio give better insight into risk and actual cash flow. For commercial real estate, cap rate is the industry standard. And ROI says nothing about risk: a high-ROI property in a declining area with unreliable tenants may be far worse than a lower-ROI property in a stable market. Always pair ROI with cash flow, risk, and growth analysis.