Rental Property Monthly Cash Flow Calculator for Cash-Flow Positive Duplex

Small duplex generating strong rental income with manageable expenses and mortgage costs.

Estimate the monthly cash flow from a rental property based on income and expenses. Enter your Monthly Rental Income, Total Monthly Operating Expenses, Monthly Mortgage Payment to get an instant monthly cash flow. Formula: monthly_rental_income - total_monthly_operating_expenses - monthly_mortgage_payment.

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USD

Monthly Cash Flow

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Monthly Cash Flow

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How It Works

How It Works

This calculator estimates how much money you keep each month from a rental property after paying all regular expenses. It uses a simple subtraction formula to determine your monthly cash flow.

First, it takes your total rental income. Then it subtracts your operating expenses and your mortgage payment. The remaining amount is your monthly cash flow.

  • Start with your total monthly rental income
  • Subtract all monthly operating expenses (maintenance, taxes, insurance, etc.)
  • Subtract your monthly mortgage payment
  • The result is your monthly cash flow

Understanding the Results

The final number shows whether your property is making or losing money each month. A positive number means the property is generating profit. A negative number means you are paying out of pocket to keep the property.

This estimate helps you quickly evaluate if a rental property is financially sustainable before or after purchase.

  • Positive result = profit each month
  • Negative result = monthly loss
  • Zero means the property breaks even
  • Higher cash flow improves financial stability and investment returns

Disclaimer

This financial calculator provides estimates only. Actual results may vary. Consult a qualified financial advisor for personalized guidance. Disclaimer.

Created by CalcLearn Team Reviewed for accuracy Last updated: Jun 05, 2026

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