PropCalcBuy vs Rent Calculator🇵🇹 🇪🇸 🇩🇪 🇫🇷 🇬🇧 🇺🇸
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All CalculatorsBuy vs Rent Calculator

Buy vs Rent Calculator

Compare the true long-term cost of buying versus renting a property.

Closing costs: 2–5% buyer side. Property tax varies widely (0.3–2.5%/year). Rent control limited to select cities.

Buying

$
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yrs
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%
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%

Renting

$
%
$

Opportunity Cost

%
S&P 500 reference: Nominal avg ~10%/yr | Real (inflation-adj.) ~7%/yr. The renter is assumed to invest the down payment + transaction costs ($94,000) and any monthly savings vs buying.
yrs

Buying is better

Monthly Cost (Buy)

$2,786

Mortgage + tax + maintenance

Monthly Cost (Rent)

$2,020

Rent + insurance

$318,804

Home value − loan balance

Rent Net Wealth (yr 10)

$85,465

Invested down payment + savings

Break-even point Year 1 — buying starts building more wealth than renting from this year.

Total upfront (buy): $94,000(down payment + transaction costs)
Opportunity cost (invested at 10%): $85,465

Net Wealth Over Time

Buy equity = home value − loan balance. Rent wealth = down payment invested at 10%/yr (S&P 500 reference) + monthly savings invested.

Cumulative Out-of-Pocket Costs

Buy costs include upfront (down payment + transaction costs), mortgage payments, maintenance, and property tax. Rent costs include rent and insurance.

Is It Better to Buy or Rent a Home?

The buy vs rent decision is one of the most consequential financial choices most people make. The answer depends on your time horizon, local market conditions, mortgage rates, and — critically — what you would do with the down payment if you didn't buy.

The Opportunity Cost of the Down Payment

This calculator explicitly models the opportunity cost: if you rent instead of buy, you keep your down payment and transaction costs liquid. Invested in a diversified index fund tracking the S&P 500, that capital has historically grown at ~10%/year nominally (~7% after inflation). Over 10-20 years, this compounding effect is substantial and often overlooked in simple buy-vs-rent comparisons.

Key Variables That Tip the Balance

Buying tends to win when: (1) you stay for 7+ years, (2) home appreciation exceeds the investment return, (3) transaction costs are low, and (4) the price-to-rent ratio is below 20. Renting tends to win when: (1) you move within 5 years, (2) the market is overvalued (high P/R ratio), (3) transaction costs are high (e.g. Portugal, Germany), and (4) you invest the difference consistently.

Country-Specific Considerations

Transaction costs vary enormously: ~3.5% in the US, ~7.5% in Portugal (IMT + IS + notary), ~9-10% in Germany and Spain. These high upfront costs mean buying in Europe requires a longer break-even horizon — often 7-10 years — before it outperforms renting + investing.

Data updated on 25 May 2026

About This Calculator

This calculator provides a comprehensive financial comparison between buying and renting a property over a specified period, crucial for individuals and families making significant housing decisions. It's designed for prospective homeowners, renters considering purchase, and real estate investors evaluating long-term asset accumulation versus liquidity. Understanding the true costs, including the often-overlooked opportunity cost of a down payment, is vital for optimizing personal finance and wealth building.

How It Works

1

Define Your Time Horizon and Property Value

Specify the number of years you plan to live in the property or hold the investment, as this significantly impacts long-term costs and appreciation. Input the current market value of the property you are considering, which forms the basis for both purchase price and potential rental income calculations.

2

Input Buying Costs and Financing Details

Enter the down payment percentage, interest rate, and loan term for a potential mortgage. Include all associated buying costs such as property transfer tax (IMT in Portugal, typically 0-7.5%), stamp duty (IS, 0.8%), legal fees, and initial renovation expenses. These upfront costs are critical for assessing the initial capital outlay.

3

Detail Ongoing Ownership Expenses

Provide annual property taxes (IMI in Portugal, 0.3-0.8% of VPT), condominium fees, insurance, and estimated maintenance costs (often 1% of property value annually). These recurring expenses are often underestimated but significantly impact the total cost of ownership over time.

4

Estimate Rental Costs and Market Dynamics

Input the monthly rent for a comparable property and any associated rental fees. Consider the annual rent increase percentage, as this affects future rental outlays. Also, estimate the property's annual appreciation rate and the inflation rate to project future values and purchasing power.

5

Account for Opportunity Costs and Investment Returns

Crucially, specify the expected annual return on investment for the capital that would otherwise be used for a down payment and buying costs. This 'opportunity cost' represents the potential gains lost by tying up capital in real estate rather than investing it elsewhere, providing a more holistic financial comparison.

Worked Example — Austin, Texas, United States

In Austin, Texas, United States, compare the same own capital against a $360,000 property and $270,000 financing at 6.4%.

  • Use the same time horizon and own-capital amount in every alternative.
  • Enter current local financing, operating-cost and return assumptions.
  • Compare risk, liquidity and after-tax consequences as well as the headline result.

The comparison is locally framed but remains sensitive to the assumptions you choose.

Frequently Asked Questions