Rent vs Buy Calculator

About the Rent vs Buy Calculator

A rent vs. buy calculator compares the total financial cost of renting versus buying a home over any time horizon — incorporating all the costs that simplistic comparisons miss, including mortgage interest, property taxes, homeowner's insurance, maintenance, the opportunity cost of the down payment, home price appreciation, rent inflation, and building equity. The rent-versus-buy decision is one of the most consequential financial choices most people make, and the conventional wisdom ("buying is always better") is simply wrong in many markets, at many price points, and for many time horizons. Our free rent vs. buy calculator gives you a complete, honest comparison that accounts for the full cost of homeownership beyond just the mortgage payment and the full benefit of renting beyond just flexibility. It calculates the break-even point — the number of years of homeownership needed for buying to become financially superior to renting — which is critical for people uncertain about how long they will stay in one location.

How It Works

Buying costs per year: mortgage interest (decreasing), property taxes (typically 1-2% of value annually), homeowner's insurance (0.5-1%), maintenance (1-2% of value), PMI if applicable, plus the opportunity cost of the down payment invested elsewhere. Buying benefits per year: equity building through principal paydown (increasing), home price appreciation. Renting costs per year: rent payments, renter's insurance. Renting benefits: flexibility to move without transaction costs, down payment capital invested in the market. Example: $500,000 home, 20% down ($100,000), 6.5% mortgage rate, 1.2% property tax, 1% maintenance, 1% insurance = total ownership costs of approximately $48,000/year in year 1. Comparable rent: $2,200/month = $26,400/year. Simple difference: $21,600/year more for owning. Equity building, appreciation, and tax benefits reduce this gap over time until buying becomes superior.

Tips & Best Practices

• ✓The 5% rule (Ben Felix): the unrecoverable costs of ownership approximate 5% of the home's value annually (property taxes + maintenance + cost of capital). If 5% of the home value exceeds annual rent, renting may be financially superior.
• ✓Price-to-rent ratio: divide home price by annual rent for comparable properties. Below 15: buying is clearly advantageous. 15-20: buying is probably better. 20-25: mixed; depends on assumptions. Above 25: renting is often financially superior in the short to medium term.
• ✓Transaction costs make short tenures expensive: buying and selling a home typically costs 8-10% of the home's value (agent commissions, closing costs, moving expenses). You need sufficient appreciation just to break even on transaction costs, requiring 5-7 years of ownership in most markets.
• ✓Opportunity cost of down payment: the down payment and closing costs represent capital that could be invested. At 8% historical S&P 500 returns, a $100,000 down payment could grow to $215,000 in 10 years — this foregone return is a real cost of buying.
• ✓The "build equity" argument is partially offset by the mortgage interest cost: in early years, most of your payment is interest, not equity. You are building equity primarily through price appreciation, not principal paydown.
• ✓Lifestyle factors matter too: homeownership provides stability, the ability to renovate and personalise, and is a forced savings vehicle for people who struggle to invest otherwise. These non-financial benefits are real and should be weighed alongside the financial analysis.
• ✓Market conditions matter enormously: the rent vs. buy calculation in San Francisco (price-to-rent ratio above 40) strongly favours renting, while in many Midwest markets (price-to-rent ratio 8-12) buying is clearly superior financially.
• ✓Rental inflation protection: owning a fixed-rate mortgage provides long-term housing cost stability — your principal and interest payment never increases, unlike rent which typically rises 2-5% annually.

Who Uses This Calculator

People facing the rent vs. buy decision in a new city or after a life change. Couples weighing homeownership against continued renting given their career mobility needs. Recent graduates deciding whether to buy in their first city or wait until they are more settled. People in high-cost cities like San Francisco, New York, or London where the rent vs. buy math differs dramatically from national averages. Financial advisors helping clients make the largest financial decision of their lives with a complete and honest analysis.