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Rent vs Buy Calculator

The Rent vs Buy Decision: What Really Matters

The rent vs buy decision is one of the biggest financial choices most people make. The conventional wisdom that 'renting is throwing money away' is an oversimplification — homeowners also 'throw away' money on mortgage interest (the majority of early payments), property taxes, insurance, maintenance, and transaction costs. The real question is: over your specific time horizon, does buying or renting leave you with more wealth?

How This Calculator Compares the Two Paths

The calculator runs two parallel scenarios. The buyer scenario computes monthly mortgage payments (P&I), adds property tax, insurance, HOA, and maintenance, subtracts mortgage interest tax deductions if applicable, and tracks how equity builds as the home appreciates. The renter scenario assumes the down payment and the monthly savings (rent vs. true cost of ownership) are invested at your expected investment return rate. At any year, you can compare the buyer's home equity minus selling costs against the renter's investment portfolio.

Preguntas Frecuentes

Is it always better to buy than rent?

No — the 'rent is throwing money away' myth ignores that buyers also spend money on mortgage interest (most of each early payment), property taxes, insurance, maintenance, and transaction costs. Renting is financially superior when you'll move in under 5 years, when your local price-to-rent ratio is high, or when the stock market offers better returns than home appreciation in your market.

What is the price-to-rent ratio and how do I use it?

Price-to-rent ratio = home price ÷ annual rent. Below 15: buying is generally favorable. 15-20: neutral, depends on your timeline. Above 20: renting is often cheaper on a monthly basis. Many expensive cities (NYC, SF, LA) have ratios of 30-50+, making renting financially superior for most time horizons.

How many years do I need to stay for buying to make sense?

In most US markets in 2024-2025, you need to stay 5-8 years for buying to break even with renting, primarily because buying and selling transaction costs total 8-13% of the home's value. In markets with high appreciation (Miami, Austin) it can be less; in stagnant markets it can be 10+ years.

Should I count the down payment as an investment?

Yes — your down payment has an opportunity cost. $80,000 invested in a diversified stock portfolio at 7% annual return grows to about $158,000 in 10 years. This doesn't mean renting is always better, but it means home equity should be compared against what that capital would earn invested elsewhere.

Does the mortgage interest deduction make a big difference?

Less than it used to. The 2017 Tax Cuts and Jobs Act doubled the standard deduction, so fewer than 15% of households now itemize. The benefit only applies to the amount of interest that exceeds your standard deduction ($14,600 single / $29,200 married in 2024). For most middle-income buyers, the tax benefit is minimal.

What happens to my analysis if home prices drop?

Significant price drops dramatically extend the breakeven period or can make buying a net loss. During 2007-2012, some markets fell 30-50%. If you bought a $400K home with 20% down and prices fell 25%, you'd be underwater (owe more than the home is worth) and trapped — unable to sell without a loss. This risk is another argument for only buying if you can commit to 7+ years.