Rent vs. Buy Calculator

Renting versus buying isn’t just a monthly-payment comparison — it’s a wealth comparison. A buyer ties up cash in a down payment and closing costs that could otherwise be invested, but builds equity as the home (hopefully) appreciates and the loan balance shrinks. A renter keeps that cash free to invest, but every rent payment builds no equity at all. This calculator models both paths side by side over the number of years you choose, and tells you which one leaves you further ahead financially, not just which one has the lower monthly payment.

How “Net Cost” Is Calculated

For buying, the calculator adds your down payment, closing costs, and every monthly payment (principal, interest, property tax, insurance, maintenance, and HOA) over your comparison period, then subtracts what you’d walk away with if you sold at the end — the home’s projected value minus your remaining loan balance and selling costs. For renting, it totals every rent payment (increasing each year at your assumed rate), then subtracts the investment growth you’d earn by investing the down payment and closing costs in the market instead of a house. Whichever path has the lower net cost is the one that leaves you financially ahead over that specific time horizon.

Why the Time Horizon Changes the Answer

Buying carries large upfront costs (down payment, closing costs) that only pay off as they’re spread across enough years of equity growth and avoided rent increases. Sell too soon and those upfront costs plus selling fees can outweigh the equity gained, tilting the math toward renting. Hold much longer, and rising rent combined with years of appreciation and principal paydown usually tilts firmly toward buying. Try shortening the “years to compare” field to 2–3 years and then lengthening it to 15–20 to see this break-even shift in real time.

A Few Practical Notes

This model keeps property tax, insurance, and maintenance costs fixed at your original home price rather than scaling them up with appreciation, and it only invests the initial down payment and closing costs for the renter — it doesn’t assume the renter separately invests any month-to-month savings, which is a simplification used by most public rent-vs-buy tools. It also doesn’t account for tax deductions on mortgage interest, which can modestly improve the buying case for some households. Treat this as a directional comparison to sanity-check a decision, not a substitute for running your specific numbers with a lender or financial advisor.

Freedom Wealth Lab Apps provides general educational tools, not personalized financial advice. Read our full Disclaimer and Affiliate Disclosure. This calculator uses an original opportunity-cost model with no country-specific regulatory data baked in — adjust the tax, closing-cost, and selling-cost fields to match your market.