Rent vs Buy Calculator

Q: Is it always cheaper to buy than rent?

No. The financial advantage depends heavily on location, how long you stay, home price appreciation, mortgage rates, and what you do with the savings from renting. According to research by the Federal Reserve Bank of Atlanta, renting is financially superior to buying in approximately 40% of US metropolitan areas when factoring in opportunity cost of the down payment. In high-cost cities like San Francisco, New York, and Boston, renting often wins for stays under 7–10 years. The 'buy vs rent' decision is math, not ideology.

Q: How long do I need to stay to make buying worthwhile?

The typical breakeven point is 5–7 years in most US markets, but it varies dramatically by location and market conditions. In markets with high price-to-rent ratios (like coastal cities), the breakeven can be 10+ years. The breakeven depends on closing costs (typically 2–5% of purchase price), selling costs (5–6% agent commissions), and the rate of home price appreciation vs. investment returns on a renter's savings. This calculator computes your specific breakeven based on your inputs.

Q: What costs of homeownership are people most likely to underestimate?

The most underestimated costs are: (1) Maintenance and repairs — the standard rule is budgeting 1–2% of home value annually, meaning a $400K home costs $4,000–$8,000/year in upkeep. (2) Opportunity cost of the down payment — a $80,000 down payment invested in the S&P 500 at 7% real return would grow to ~$160,000 in 10 years. (3) Transaction costs — buying (2–5% closing costs) and selling (5–6% agent fees + closing costs) together consume ~8–11% of the home's value. (4) Property insurance increases — premiums have risen 20–30% in many US states since 2020.

Q: Should I factor in the mortgage interest tax deduction?

Only if you itemize deductions. After the 2017 Tax Cuts and Jobs Act doubled the standard deduction to $25,900 (2022, married filing jointly), roughly 87% of US taxpayers take the standard deduction. For these taxpayers, the mortgage interest deduction provides zero benefit. Even for itemizers, the deduction only applies to interest on mortgages up to $750,000. This calculator shows post-tax costs either way, but you should confirm whether you actually itemize before counting on this benefit.

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

The price-to-rent ratio equals the home price divided by annual rent for a comparable property. For example: $400,000 home ÷ ($2,000/month × 12) = 16.7. Ratios below 15 favor buying; 15–20 is neutral; above 20 favors renting. In 2024, the national average price-to-rent ratio was approximately 17. Cities like Detroit (ratio ~8) strongly favor buying, while San Francisco (ratio ~30+) strongly favors renting. This ratio is a quick screening tool, but a full analysis like this calculator provides a more accurate comparison.

Q: What rate of home appreciation should I assume?

The long-term national average for US home prices (1991–2024) is approximately 3.5–4.5% annually, according to the FHFA House Price Index. However, real (inflation-adjusted) appreciation is closer to 1–2% per year. Nominal appreciation can vary dramatically by market: some cities saw 100%+ gains from 2019–2024, while others were flat. For conservative planning, use 3% nominal or 1% real. Never assume home prices only go up — during 2007–2012, the national average declined ~27%. This calculator lets you set your own appreciation assumption.

Year	Buy Net Wealth	Rent Net Wealth	Difference
1	$63,645	$95,085	$-31,440
2	$78,902	$110,320	$-31,418
3	$94,800	$126,242	$-31,442
4	$111,368	$142,890	$-31,522
5	$128,638	$160,305	$-31,667
6	$146,642	$178,530	$-31,888
7	$165,414	$197,613	$-32,199
8	$184,991	$217,603	$-32,611
9	$205,411	$238,552	$-33,141
10	$226,714	$260,518	$-33,805

Year

Buy Net Wealth

Rent Net Wealth

Difference

$63,645

$95,085

$-31,440

$78,902

$110,320

$-31,418

$94,800

$126,242

$-31,442

$111,368

$142,890

$-31,522

$128,638

$160,305

$-31,667

$146,642

$178,530

$-31,888

$165,414

$197,613

$-32,199

$184,991

$217,603

$-32,611

$205,411

$238,552

$-33,141

$226,714

$260,518

$-33,805

What Is a Rent vs Buy Calculator?

A rent vs buy calculator compares the total financial outcome of renting a home versus purchasing one over a specified time period. It goes far beyond the simplistic “rent is throwing money away” argument by modeling the full cost of ownership — including mortgage interest, property taxes, maintenance, insurance, transaction costs, and the opportunity cost of investing the down payment in the stock market instead. The result is a net wealth comparison that shows which option leaves you financially better off.

How Does the Calculation Work?

Buyer's Net Wealth

Net Wealth (Buy) = Home Value after Appreciation − Remaining Mortgage − Selling Costs

The buyer pays: down payment + closing costs + monthly mortgage (P&I) + property taxes + insurance + maintenance + HOA. Over time, the home appreciates in value and the mortgage balance decreases, building equity.

Renter's Net Wealth

Net Wealth (Rent) = Investment Portfolio Value

The renter pays: monthly rent + renter's insurance. The renter invests: (1) the entire down payment + closing costs upfront, and (2) any monthly savings (the difference between the buyer's total housing cost and the renter's cost) into an investment portfolio earning market returns.

Worked Example

Monthly mortgage (P&I): ~$1,770 on a $280,000 loan
Total buyer monthly cost: ~$2,650 (mortgage + tax + insurance + maintenance)
Home value after 10 years (3.5% growth): ~$493,000
Buyer equity after selling costs: ~$250,000
Renter portfolio (investing savings at 7%): ~$210,000
Buying wins by ~$40,000 in this scenario

Understanding Your Results

The key insight is that both renting and buying cost money — the question is which option costs less and builds more wealth over your specific time horizon. Factors that favor buying:

Longer time horizon (7+ years)
Strong local home appreciation
Low mortgage interest rates
Low property tax jurisdiction

Factors that favor renting:

Short time horizon (< 5 years)
High price-to-rent ratio (expensive market)
High mortgage rates
Strong stock market returns

The Price-to-Rent Ratio

The price-to-rent ratio is a quick screening metric: Home Price ÷ (Monthly Rent × 12).

Ratio	Recommendation	Example Markets (2024)
Below 15	Strongly favors buying	Detroit, Cleveland, Pittsburgh
15–20	Neutral — depends on specifics	Dallas, Atlanta, Phoenix
Above 20	Strongly favors renting	San Francisco, New York, Los Angeles

Hidden Costs Most People Forget

Transaction costs: Closing costs (2–5%) + selling costs (5–6%) consume 8–11% of the home's value for a round-trip buy-and-sell.
Maintenance: Budget 1–2% of home value per year. A $350K home costs $3,500–$7,000 annually. Major repairs (roof, HVAC, foundation) can cost $10,000–$30,000.
Opportunity cost: A $70,000 down payment invested in the S&P 500 at 7% historical return grows to ~$137,000 in 10 years — $67,000 in gains the renter captures.
Illiquidity: Home equity cannot be quickly or cheaply accessed. Selling takes 30–90 days and costs 5–6% in commissions.

Financial Disclaimer

This calculator is for educational purposes only and does not constitute financial advice. Actual costs, appreciation rates, and investment returns vary significantly by location, market conditions, and individual circumstances. Tax implications are simplified. Consult a qualified financial advisor before making major housing decisions.

Sources and References

Federal Housing Finance Agency (FHFA). House Price Index. fhfa.gov. Historical home price data from 1991–2024.
Federal Reserve Bank of Atlanta (2024). “Home Ownership Affordability Monitor.”
National Association of Realtors (2024). “Home Buyers and Sellers Generational Trends Report.”
Damodaran, A. (2024). “Historical Returns on Stocks, Bonds and Bills — US: 1928–2024.” NYU Stern School of Business.

Frequently Asked Questions

Is it always cheaper to buy than rent?

No. The financial advantage depends heavily on location, how long you stay, home price appreciation, mortgage rates, and what you do with the savings from renting. According to research by the Federal Reserve Bank of Atlanta, renting is financially superior to buying in approximately 40% of US metropolitan areas when factoring in opportunity cost of the down payment. In high-cost cities like San Francisco, New York, and Boston, renting often wins for stays under 7–10 years. The 'buy vs rent' decision is math, not ideology.

How long do I need to stay to make buying worthwhile?

The typical breakeven point is 5–7 years in most US markets, but it varies dramatically by location and market conditions. In markets with high price-to-rent ratios (like coastal cities), the breakeven can be 10+ years. The breakeven depends on closing costs (typically 2–5% of purchase price), selling costs (5–6% agent commissions), and the rate of home price appreciation vs. investment returns on a renter's savings. This calculator computes your specific breakeven based on your inputs.

What costs of homeownership are people most likely to underestimate?

The most underestimated costs are: (1) Maintenance and repairs — the standard rule is budgeting 1–2% of home value annually, meaning a $400K home costs $4,000–$8,000/year in upkeep. (2) Opportunity cost of the down payment — a $80,000 down payment invested in the S&P 500 at 7% real return would grow to ~$160,000 in 10 years. (3) Transaction costs — buying (2–5% closing costs) and selling (5–6% agent fees + closing costs) together consume ~8–11% of the home's value. (4) Property insurance increases — premiums have risen 20–30% in many US states since 2020.

Should I factor in the mortgage interest tax deduction?

Only if you itemize deductions. After the 2017 Tax Cuts and Jobs Act doubled the standard deduction to $25,900 (2022, married filing jointly), roughly 87% of US taxpayers take the standard deduction. For these taxpayers, the mortgage interest deduction provides zero benefit. Even for itemizers, the deduction only applies to interest on mortgages up to $750,000. This calculator shows post-tax costs either way, but you should confirm whether you actually itemize before counting on this benefit.

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

The price-to-rent ratio equals the home price divided by annual rent for a comparable property. For example: $400,000 home ÷ ($2,000/month × 12) = 16.7. Ratios below 15 favor buying; 15–20 is neutral; above 20 favors renting. In 2024, the national average price-to-rent ratio was approximately 17. Cities like Detroit (ratio ~8) strongly favor buying, while San Francisco (ratio ~30+) strongly favors renting. This ratio is a quick screening tool, but a full analysis like this calculator provides a more accurate comparison.

What rate of home appreciation should I assume?

The long-term national average for US home prices (1991–2024) is approximately 3.5–4.5% annually, according to the FHFA House Price Index. However, real (inflation-adjusted) appreciation is closer to 1–2% per year. Nominal appreciation can vary dramatically by market: some cities saw 100%+ gains from 2019–2024, while others were flat. For conservative planning, use 3% nominal or 1% real. Never assume home prices only go up — during 2007–2012, the national average declined ~27%. This calculator lets you set your own appreciation assumption.

Buying

Renting

Comparison Settings

Buying Summary

Renting Summary

Year-by-Year Net Wealth Comparison