Housing Decision

Rent vs Buy
Estimator

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The math behind rent vs buy

Most people assume buying is always better than renting because "you're throwing money away on rent." But that's not always true — and the math depends heavily on how long you stay.

When you buy: You build equity, benefit from appreciation, and eventually own the home free and clear. But you also pay property taxes, maintenance, insurance, interest, and transaction costs (6% when you sell).

When you rent: You pay rent that typically rises over time. But your down payment and any monthly savings can be invested in the stock market, which historically returns about 7% per year after inflation.

The breakeven point is usually 3-5 years. Stay longer than that, and buying typically wins. Sell sooner, and the transaction costs eat up any appreciation.

The 5-year rule (and why it exists)

Buying a home costs about 2-3% of the purchase price in closing costs. Selling costs about 6% in realtor commissions. That's 8-9% of your home's value just in transaction fees.

If you buy a $400,000 home, you'll pay roughly $30,000 in combined transaction costs. If you sell after two years and the home has appreciated 3% per year ($24,000), you've actually lost money — the transaction costs exceeded your appreciation.

Hold for 10 years, and that same 3% annual appreciation grows the home to $537,000. Now the transaction costs ($32,000) are a fraction of your gains ($137,000).

The breakeven point: In most markets, buying beats renting if you stay at least 4-6 years. Under 3 years, renting almost always wins.

When each choice makes sense

01

Buy if you're staying 7+ years

Transaction costs get diluted, equity builds, and appreciation compounds. You'll almost certainly come out ahead of renting.

02

Rent if you're staying under 3 years

Closing costs and realtor fees will eat any gains. Rent and invest the difference instead.

03

Buy in slow-appreciation markets

If home values rise slowly (1-2%/year), you need even more time to break even. Run the numbers with local data.

04

Rent in expensive coastal cities

In San Francisco or NYC, price-to-rent ratios are so high that renting + investing often wins indefinitely.

Real example

Scenario: Rent an apartment for $2,000/month or buy a comparable home for $500,000 with 10% down ($50,000) and a 6.5% mortgage.

After 5 years, buying wins by ~$25,000. After 3 years, roughly a tie. After 7 years, buying wins by ~$70,000.

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This tool provides estimates for informational purposes only and does not constitute financial or real estate advice. Assumes 3% annual home appreciation, 2% annual rent increases, 7% investment returns, 1% maintenance, 1.1% property taxes, 0.4% insurance, and 6% selling costs — actual values vary significantly by location and market conditions. Consult a professional before making housing decisions. This site may use cookies and analytics. By using this site, you agree to our Privacy Policy and Terms of Service.