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Finance & Economics / Real Estate Investment

Rental Property Cash Flow Calculator

Purchase Information

Rental Income

Annual Operating Expenses

How to Use This Calculator

This calculator helps you analyze the cash flow of a rental property investment. Enter the purchase details, expected rental income, and operating expenses to see if the property will generate positive or negative cash flow.

Key Metrics Explained:

  • Cash Flow: Monthly/annual income after all expenses and mortgage payments
  • Cap Rate: Return on investment based on property value (NOI ÷ Purchase Price)
  • Cash-on-Cash Return: Return on actual cash invested (Annual Cash Flow ÷ Total Cash Invested)
  • NOI: Net Operating Income - rental income minus operating expenses (before mortgage)

Use this rental property cash flow calculator to compute real estate investment results from your inputs.

Formula

Monthly mortgage = Loan amount × [r(1+r)^n] / [(1+r)^n - 1] Gross rental income = Monthly rent × 12 Vacancy loss = Gross rental income × vacancy rate Operating expenses = Property tax + Insurance + Maintenance + Management fees + HOA + Utilities NOI = (Gross rental income - Vacancy loss) - Operating expenses Cash flow = NOI - (Monthly mortgage × 12) Cap rate = NOI / Purchase price Cash-on-cash return = Annual cash flow / Total cash invested