Real Estate Investing & Property Calculations Guide

📚 Overview

Real estate investing is numbers-driven. Successful property acquisitions depend on evaluating Net Operating Income (NOI), Capitalization Rates (Cap Rate), Cash-on-Cash Return, and total closing costs rather than emotional impulse.

📐 Capitalization Rate & Cash-on-Cash Return Equations

Net Operating Income (NOI) = Gross Rental Income - Operating Expenses (excluding mortgage debt service).

🔢 Worked Example

Scenario: An investor purchases a rental property for $300,000. Gross annual rent is $36,000 and operating expenses (taxes, insurance, maintenance, vacancy) total $12,000.

• Purchase Price: $300,000
• Gross Rent: $36,000
• Expenses: $12,000

1. NOI = $36,000 - $12,000 = $24,000
2. Cap Rate = ($24,000 / $300,000) × 100%
3. Cap Rate = 8.0%

💡 Pro Tips

• Never exclude maintenance reserves and vacancy allowances (typically 5%–10% of gross rent) when calculating real estate NOI.
• Cap rate measures property yield without financing; Cash-on-Cash return measures your actual return on out-of-pocket down payment cash.
• Buyer closing costs typically range between 2% and 5% of the loan amount; seller closing costs can reach 6% to 10% including agent commissions.
• Use our Rental Yield and Mortgage calculators to model cash flow under different loan interest rates.

🧮 Real Estate Calculators (20)

Put the formulas above into practice with these free tools:

❓ Frequently Asked Questions