Rent vs Buy Calculator
Determine the smartest financial move over your specific time horizon by comparing unrecoverable housing costs with investment opportunity costs.
Calculations Overview
The Model's Unrecoverable Costs
To properly compare the two choices, we calculate the "Net Cost" of each over your specified time horizon. Unrecoverable costs are money you spend that you never get back.
- • Renting Unrecoverable: 100% of the rent you pay.
- • Buying Unrecoverable: Mortgage interest, property taxes (est. 1.2%/yr), maintenance (est. 1%/yr), and closing/selling costs (est. 6%).
The Opportunity Cost Formula
If you rent, you keep your down payment in your pocket. This calculator assumes you invest that down payment into the stock market. The compounding returns on that investment are subtracted from your total rental cost:
This model uses standard national averages (3% rent increase, 3% home appreciation) to balance the remaining variables.
Related Financial Calculators
Stock Market Average Calculator
Calculate the average price of your stock purchases.
Compound Interest Calculator
See how your savings grow with compound interest.
Frequently Asked Questions
Why is renting sometimes financially better than buying?
While buying builds equity, it also comes with unrecoverable costs like property taxes, maintenance, interest, and closing costs. If you rent and invest your would-be down payment into the stock market, the compound growth of your investments can sometimes outpace the equity gained from buying, especially over a short time horizon.
What is opportunity cost in this calculation?
Opportunity cost refers to what your money could have earned if you did something else with it. If you put $50,000 into a down payment, you lose the opportunity to invest that $50,000 in the stock market. This calculator tracks how much that money would have grown if you continued renting.
How do property taxes and maintenance factor in?
Homeowners must pay annual property taxes and ongoing maintenance (often estimated at 1% to 2% of the home's value per year). Renters do not directly pay these unrecoverable costs, making renting cheaper on a strict month-to-month cash flow basis in many markets.
How does the time horizon affect the result?
Buying a home generally requires paying high upfront closing costs and paying mostly interest in the early years of a mortgage. Therefore, if you plan to move in less than 5 to 7 years, renting is almost always the better financial choice. Buying usually wins over horizons of 10+ years.