Most investors focus on cash flow when evaluating rental property — but equity paydown is an equally powerful wealth-building force. Every mortgage payment your tenants effectively fund reduces your loan balance and increases your net worth. Understanding how to calculate and project equity paydown shows the full picture of your rental property returns.
A fixed-rate mortgage amortizes over time — each payment is split between interest and principal. Early in the loan, most of the payment is interest. Over time, the principal portion grows. On a 30-year mortgage, roughly 60% of total payments go to interest over the life of the loan.
This is complex to calculate manually — a simple way is to use a mortgage amortization table for your specific loan. For a $200,000 loan at 7% for 30 years: monthly payment is $1,330.60. Year 1 interest portion: $13,870. Year 1 principal portion: $2,098. By Year 10, annual principal paydown increases to approximately $3,800.
For a full rental property return analysis, include: cash-on-cash return + appreciation rate + equity paydown yield. On a property with 4% cash-on-cash, 3% annual appreciation, and 1% equity paydown yield on your equity, your total annual return is approximately 8% — before tax benefits. Add depreciation tax savings and the real number is higher still.
Dan White is a licensed Virginia real estate agent at Pearson Smith Realty and founder of FreeDealCalc.com. He has been investing in Northern Virginia real estate for 20+ years.