Rental Property Calculator

What Is a Rental Property Calculator?

A Rental Property Calculator helps you evaluate the financial performance of a real estate investment. By entering key variables like purchase price, down payment, interest rate, rental income, operating expenses, vacancy, property management, and appreciation, you can quickly see cash flow, cap rate, cash‑on‑cash return, ROI, and projected profit upon sale. This tool is essential for investors who want to make data‑driven decisions.

How to Use This Rental Property Calculator

1. Enter the Purchase Price — the total cost of the property.
2. Enter your Down Payment — the cash you are investing.
3. Enter the Interest Rate and Loan Term for your mortgage.
4. Enter Monthly Rent — the expected monthly rental income.
5. Enter Annual Operating Expenses — taxes, insurance, maintenance, etc. (excluding debt service).
6. Enter Vacancy Rate — percentage of time the property is expected to be vacant.
7. Enter Property Management Rate — percentage of gross rent paid to a property manager.
8. Enter Annual Appreciation — expected yearly increase in property value.
9. Enter Selling Costs — percentage of sale price for commissions and fees.
10. Click Calculate to see your cash flow, cap rate, cash‑on‑cash return, ROI, and a 10‑year projection.

You can adjust any input to see how changes affect your returns — for example, a higher down payment reduces debt and increases cash flow.

How the Calculation Works

• Gross Annual Rent = Monthly Rent × 12.
• Vacancy Loss = Gross Annual Rent × Vacancy Rate.
• Effective Gross Income (EGI) = Gross Annual Rent − Vacancy Loss.
• Property Management Fees = Gross Annual Rent × Management Rate.
• Total Operating Expenses = Annual Expenses + Management Fees.
• Net Operating Income (NOI) = EGI − Total Operating Expenses.
• Annual Debt Service is calculated using the standard mortgage payment formula.
• Annual Cash Flow = NOI − Annual Debt Service.
• Cap Rate = NOI / Purchase Price × 100.
• Cash‑on‑Cash Return = Annual Cash Flow / Down Payment × 100.
• Total ROI = (Total Cash Flow over holding period + Sale Proceeds − Down Payment) / Down Payment × 100.
• Sale Proceeds = Projected Sale Price − Remaining Loan Balance − Selling Costs.

How to Print or Save This Calculation as a PDF

1. Enter your numbers and click Calculate.
2. Click the Print link at the top of the page.
3. In the print dialog, choose "Save as PDF" as the destination.
4. Ensure "Background graphics" is enabled so charts and colours print correctly.
5. Click Save — the full projection and summary will be included.

Frequently Asked Questions