Rent vs Buy Calculator: Which Path Builds More Wealth?

By ZeroFee Tools · October 3, 2026 · 6 min read

Should I buy? It is the biggest financial question most people ever face, and gut feeling is a terrible way to answer it. The free Rent vs Buy Calculator from ZeroFee Tools turns the debate into math: enter your numbers on both sides and see which path leaves you wealthier after the years you plan to stay. Unlike back-of-the-envelope rules, it accounts for the costs people forget: closing costs, maintenance, HOA, and rent growth.

Is it better to rent or buy a house?

It depends on your numbers: how long you will stay, local price-to-rent ratios, mortgage rates, and the hidden costs of ownership like maintenance and HOA fees. Short stays usually favor renting once closing and selling costs are counted; long stays let equity and appreciation compound. Run your actual figures through the calculator instead of guessing.

The break-even point is often 5 to 7 years, but local markets vary widely.

What hidden costs of buying a home do people forget?

Buyers routinely forget closing costs (2 to 5 percent of the price), annual maintenance (budget 1 percent of value), HOA dues, higher insurance, and property taxes that rise over time. Together these can dwarf the mortgage-principal advantage. The calculator includes all of them so the comparison reflects real ownership economics.

Selling costs another 6 to 8 percent, which punishes short ownership stints.

Unlike back-of-the-envelope rules, it accounts for the costs people forget - closing costs, maintenance, HOA, selling costs, rent growth, and what your down payment could have earned if invested instead. The headline result, “Net wealth: buying vs renting,” settles the argument for your specific situation.

How to use the Rent vs Buy Calculator in 5 steps

1. Enter the home side. In “Your numbers,” add Home price, Down payment, Mortgage rate, and Loan term. These four drive almost the entire buying calculation.
2. Add the true cost of ownership. Fill in Property tax, Home insurance, Maintenance, HOA, plus Closing costs and Selling costs. These “invisible” costs are where buying usually loses its shine.
3. Enter the renting side. Add your Monthly rent and Rent growth, then the comparison assumptions: Home appreciation, Investment return (what your down payment earns if you keep renting), and your Marginal tax rate.
4. Set “Years you plan to stay.” This slider is the single most important input - buying usually wins over long horizons and loses over short ones.
5. Read the verdict. The “Net wealth: buying vs renting” panel shows the winner and by how much, with a “Summary after N years” breaking down where the money went. Use “Reset to defaults” to start a fresh scenario.

5 practical tips

• Respect the 5-year rule of thumb. If you'll move within five years, closing and selling costs usually wipe out any equity gains - renting often wins. The calculator will show you exactly where your break-even point is.
• Never zero out maintenance. Budget roughly 1% of the home's value per year. Skipping it is the most common way people make buying look artificially cheap.
• Stress-test the investment return. The assumed return on money you'd otherwise invest is the swing factor. Try a conservative and an optimistic value to see how sensitive your answer is.
• Count closing costs as real money. They're 2–5% of the price, paid on day one, and many buyers mentally erase them. The calculator doesn't.
• Re-run when rates move. A one-point change in mortgage rates can flip the verdict. Bookmark your scenario inputs and revisit them yearly.

Frequently asked questions