Is it always better to buy than rent?

Not always. Buying wins when you stay long enough for appreciation and equity buildup to offset transaction costs and carrying costs. Renting wins when you have a short time horizon (under 3–5 years), when home prices are significantly overvalued relative to rents (high price-to-rent ratio), or when alternative investment returns are very high. The break-even point varies by market — in expensive cities like San Francisco or New York, it can take 7–12 years to break even on buying.

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

The price-to-rent ratio is the home price divided by annual rent for a comparable property. A ratio below 15 generally favors buying; above 20 generally favors renting. For example, a $400,000 home with $1,800/month rent has a ratio of 400,000 / (1,800 × 12) = 18.5 — near neutral. Very high ratios (25+) common in coastal cities indicate that rent is cheap relative to ownership costs. Use the NYT "Is It Better to Rent or Buy?" interactive tool as a companion resource.

What costs does this calculator not include?

This calculator focuses on major costs. It does not model: closing costs (add 2–5% of purchase price to your effective down payment cost), selling costs when you eventually sell (6–8% of sale price), home renovation and improvement costs, HOA fees, mortgage interest tax deduction (which benefits buyers in high tax brackets), or the psychological value of stability from owning. For a full analysis, use our Closing Costs Calculator alongside this tool.

How does home appreciation affect the buy vs rent comparison?

Home appreciation is the single most powerful factor in the buying vs renting decision. At 3% annual appreciation on a $500,000 home, the property gains $15,000 in value in year one — more than your down payment's investment return of $7,000 (at 7% on $100,000 down). Even modest appreciation on a large asset can dwarf investment returns on a smaller down payment. This is the power of leverage in real estate. However, appreciation is not guaranteed — some markets have had periods of flat or declining prices.

Does renting ever make more financial sense than buying?

Yes, especially in high-cost markets and short time horizons. If you buy a $1,000,000 home with $200,000 down and sell after 3 years, transaction costs alone (closing costs + selling costs) can total $80,000–$120,000, easily wiping out any equity gains. Renting is also better when rent is cheap relative to ownership costs — compare your all-in monthly housing cost (mortgage + taxes + insurance + maintenance) to comparable rent. If rent is 30%+ cheaper, renting and investing the difference often wins.

What investment return should I use for the renting scenario?

The default 7% reflects the long-term historical real return of a diversified US stock index fund (roughly 10% nominal minus 3% inflation). If you are conservative or assume a lower-return environment, use 5–6%. If you would invest in bonds or savings, use 3–5%. The key insight is that buying a home is also an investment — you are choosing between two types of assets. The comparison is most useful when you use honest assumptions about both.

How do property taxes and maintenance affect the buy vs rent comparison?

They significantly increase the true cost of homeownership. Property taxes average 1–2% of home value annually depending on location. Maintenance costs average 1% of home value annually for a well-maintained home, more for older properties. Together these can add 2–3% of home value per year in ongoing costs. On a $500,000 home, that is $10,000–$15,000 per year — equivalent to $833–$1,250 per month in additional housing costs beyond the mortgage payment.

Buy vs Rent Calculator

The Buy vs Rent Calculator compares the true financial outcome of purchasing a home versus renting over a chosen time horizon. Buying builds equity through appreciation and paydown, but carries mortgage interest, taxes, maintenance, and insurance. Renting preserves your down payment for investment — the question is whether investment returns beat the wealth built through homeownership. This calculator models both paths and shows which comes out ahead.

Buying

Home Price

Down Payment

Mortgage Rate

Loan Term

Property Tax Rate

% of home value annually

Annual Maintenance

% of home value annually

Insurance

% of home value annually

Renting

Monthly Rent

Annual Rent Increase

Assumptions

Annual Home Appreciation

Investment Return (if renting)

Return on invested down payment

Comparison Horizon

Home Value After 10 Years

$604,762.37

Equity Built (Buying)

$295,837.79

Total Rent Paid (10 yrs)

$302,646.41

Net Advantage of Buying

$417,614.68

Better Option

Buying

Annual Ownership Costs (Tax + Maint + Ins)

$12,150.00

How to use this calculator

1
Enter the home price and down payment
The purchase price determines your loan size, monthly payment, and future appreciated value. The down payment is the opportunity cost if you rent — it could otherwise be invested.
2
Set your mortgage rate and term
Enter your expected mortgage interest rate and loan term. These determine your monthly principal and interest payment throughout the comparison period.
3
Enter current monthly rent
The rent you would pay in the renting scenario. The calculator applies annual rent increases to project total rent paid over the comparison period.
4
Adjust growth and return assumptions
Home appreciation, rent increase rate, and investment return rate are the key economic assumptions. Defaults are conservative: 3% appreciation, 3% rent increases, 7% investment return.
5
Set the comparison horizon
Choose 5, 10, 15, or 20 years. Buying typically wins over long horizons due to appreciation; renting often wins short-term when transaction costs dominate.
6
Review the net advantage
The calculator shows home equity vs. invested-down-payment wealth, total rent paid, and the net financial advantage of buying or renting at your chosen horizon.

Formula

— Buying Scenario —
Loan Amount = Home Price − Down Payment
Monthly Payment = Loan × [r(1+r)^n] / [(1+r)^n - 1]
Future Home Value = Home Price × (1 + appreciationRate)^years
Remaining Mortgage = Loan × [(1+r)^n - (1+r)^m] / [(1+r)^n - 1]
Equity = Future Home Value − Remaining Mortgage

Total Buy Cost = Down Payment + (Monthly Payment × 12 × years)
              + (Annual Tax + Insurance + Maintenance) × years

— Renting Scenario —
Total Rent = Sum of monthly rents with annual increases
Invested Down Payment = Down Payment × (1 + investReturn/12)^(12×years)
Rent Net Wealth = Invested Down Payment − Total Rent Paid

— Comparison —
Net Advantage of Buying = Equity − Rent Net Wealth

The buying scenario tracks mortgage amortization to find remaining balance and home appreciation to find future value. Ongoing costs (property tax, insurance, maintenance) are included as annual totals. The renting scenario assumes the down payment is invested and grows at the investment return rate — this is the opportunity cost of buying. Net advantage compares the equity position after buying against the investment account minus total rent paid. Example: $500,000 home, $100,000 down, 7% rate, $2,500/month rent, 3% appreciation over 10 years. Home equity after 10 years: ~$265,000. Invested down payment: ~$197,000 minus $336,000 rent = −$139,000. Net buying advantage: $265,000 − (−$139,000) = $404,000.

Worked Example — 10 Years

Home Price: $450,000 Down Payment: $90,000 (20%) Mortgage Rate: 7.0% / 30 years Monthly Rent: $2,200 Annual Appreciation: 3% Annual Rent Increase: 3% Investment Return: 7% After 10 years: Home Value: ~$605,000 ($450k × 1.03^10) Remaining Mortgage: ~$357,000 Home Equity: ~$248,000 Total Rent Paid: ~$306,000 (with 3% annual increases) Down Payment Grown: ~$177,000 ($90k × 1.07^10) Rent Net Wealth: $177,000 - $306,000 = -$129,000 Net Advantage of Buying: $248,000 - (-$129,000) = $377,000 Winner: Buying (by $377,000 over 10 years)

Frequently Asked Questions

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