Rental Property ROI Calculator
Purchase & Loan Info
Income & Expenses
Monthly Mortgage P&I:
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Total Monthly Expenses:
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Monthly Cash Flow:
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Net Operating Income (NOI) / Yr:
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Cap Rate:
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Cash on Cash Return:
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Understanding Rental Property ROI
Investing in real estate is one of the most reliable ways to build wealth, but simply buying a property and renting it out doesn't guarantee a profit. To succeed, you need to understand the numbers. This Rental Property ROI Calculator is designed to help investors evaluate the profitability of a potential real estate purchase by analyzing key performance metrics like Cash Flow, Cap Rate, and Cash on Cash Return.
Key Metrics Explained
Before you invest, it is crucial to understand the difference between the various financial indicators calculated above:
- Cash Flow: This is the net amount of cash moving in or out of the investment each month. It is calculated by subtracting total monthly expenses (mortgage, taxes, insurance, HOA, maintenance) from the expected monthly rental income. Positive cash flow means the property pays for itself and generates profit.
- Net Operating Income (NOI): NOI is a calculation used to analyze the profitability of income-generating real estate investments. It equals all revenue from the property, minus all necessary operating expenses. notably, NOI excludes mortgage payments and interest, focusing purely on the property's ability to generate income.
- Cap Rate (Capitalization Rate): Calculated as
(NOI / Purchase Price) * 100, this percentage helps compare the return of a real estate investment to other assets, regardless of financing. A higher cap rate generally indicates a higher potential return (and often higher risk). - Cash on Cash Return: This metric measures the annual return the investor made on the property in relation to the amount of mortgage paid during the same year. It is considered one of the most important metrics because it tells you exactly how hard your actual invested cash (down payment + closing costs) is working for you.
How to Estimate Expenses
One of the most common mistakes new investors make is underestimating expenses. When using the calculator, be sure to account for:
- Vacancy Rate: Properties won't be rented 100% of the time. A standard conservative estimate is 5% to 8% (representing about 2-4 weeks of vacancy per year).
- Maintenance & CapEx: Even if a house is new, things break. Setting aside 5% to 15% of the monthly rent for repairs and Capital Expenditures (replacing a roof or HVAC eventually) is prudent financial planning.
- Property Management: If you plan to hire a manager, they typically charge 8% to 12% of the monthly rent. Add this to your expenses if applicable.
What is a "Good" ROI?
A "good" return varies by investor strategy and market location. For cash flow investors, a target might be $200-$400 net profit per door, per month. For those focused on Cash on Cash return, many aim for 8-12% or higher, which often outperforms the stock market average when combined with the benefits of property appreciation and tax depreciation.