Rental Property Cash Flow Calculator
Please enter valid positive numbers for all fields.
Investment Analysis
Monthly Mortgage (P&I):
$0.00
Total Monthly Expenses:
$0.00
Monthly Cash Flow:
$0.00
Annual Cash Flow:
$0.00
Cash-on-Cash Return:
0.00%
Is Your Rental Property Actually Profitable?
Buying a rental property is one of the most popular ways to build long-term wealth, but not every property is a good deal. Many new investors make the mistake of simply subtracting the mortgage from the rent to determine profit. However, a true Rental Property Cash Flow analysis requires factoring in "hidden" costs like vacancy, maintenance, and insurance.
Understanding the Key Metrics
This calculator breaks down the financial health of a potential real estate deal using two primary metrics:
- Net Monthly Cash Flow: This is the money left in your pocket after all expenses are paid. This includes the mortgage (principal and interest), taxes, insurance, and variable costs like repairs and vacancy. Positive cash flow ensures the property pays for itself.
- Cash-on-Cash Return (CoC): This measures the return on the actual cash you invested (down payment + closing costs), rather than the total loan amount. It is a critical metric for comparing real estate returns against stocks or other investments. A CoC return of 8-12% is generally considered solid for residential rentals.
The 50% Rule and Realistic Estimates
When inputting your numbers, it is vital to be conservative. A common rule of thumb in real estate is the 50% Rule, which suggests that operating expenses (excluding the mortgage) often total roughly 50% of the rent. While this calculator allows for specific inputs, ensure you account for:
- Vacancy Rate: No property is occupied 100% of the time. Use 5% to 8% to account for turnover periods.
- Maintenance: Even a new house needs repairs. Budgeting 5-10% of the monthly rent saves you from shock when a water heater breaks.
- CapEx: Capital Expenditures are large, infrequent costs like a new roof. While not a monthly bill, smart investors set aside reserves monthly.
How to Use This Calculator
1. Purchase Price & Loan Details: Enter the negotiated price and your financing terms. The interest rate significantly impacts your monthly debt service.
2. Operating Expenses: Be precise with Property Taxes and Insurance, as these vary wildly by location.
3. Analyze the Result: Look for a positive Monthly Cash Flow. If the number is negative, you are "feeding the property" monthly, which increases your risk profile significantly.