WiseCalc

Rent vs. Buy Calculator

Compare the long-term costs of renting versus buying a home to determine which option makes more financial sense.

$
$0$5,000
%
-100%10%
$
$0$2,000,000
%
0%100%
%
0%15%
months
1 months360 months
%
0%5%
%
0%3%
$
$0$20,000
%
-100%10%
%
-100%15%
%
0%100%
%
0%100%
years
0 years50 years
Net renting cost
$83,449.32
Net buying cost
$186,078.65
Buying advantage (signed)
-$102,629.33
Rent paid
$206,349.83
Buyer cash paid
$390,853.99
Net sale equity
$204,775.33
Remaining mortgage debt
$237,373.15
Scenario comparison
Renting ahead

Renter investment balance: $307,404.67

Buyer investment balance: $0.00

Monthly mortgage payment: $1,769.79

Net costs at each horizon

Model assumptions

Both strategies receive the same starting cash: down payment plus purchase closing costs. Each month both receive a budget equal to the higher housing outlay, and the cheaper strategy invests the surplus at month end. Portfolios and home value use effective annual growth. Rent changes only after each complete lease year. Property tax and maintenance are modeled as the entered annual percentage of start-of-month home value divided by 12; insurance is the flat annual amount divided by 12. Mortgage interest is annual interest divided by 12, with month-end payments stopping at payoff. At the selected horizon the home is sold, selling costs and remaining debt are deducted, and both portfolios are valued. Net cost equals common starting cash and subsequent budgets minus ending wealth; a negative cost means a modeled net gain. A fractional final month prorates rent and operating costs, accrues growth and loan interest, and has no mortgage installment. -100% effective growth wipes out the affected asset over any positive interval. Default costs are editable examples. PMI, HOA fees, utilities, rent insurance, investment fees, income taxes and tax deductions are excluded. Property tax inputs are assumptions, not a prediction of assessments. This comparison is a scenario, not a recommendation.

Rent vs. Buy: Key Considerations

The rent vs. buy decision is one of the most significant financial choices most people make. It depends on how long you plan to stay in the area, local market conditions (price-to-rent ratio), your financial situation, and the opportunity cost of the down payment capital. There is no universal answer — both can be the right choice depending on your circumstances.

This calculator computes the net cost of each option by accounting not just for cash outlays, but also for wealth building: equity for buyers and investment returns on the down payment capital for renters. The result shows which option leaves you in a better net financial position at the end of your chosen time horizon.

How the Calculation Works

The rent vs. buy comparison adjusts for opportunity cost on both sides:

This net cost framework captures the most important economic tradeoff: renters can invest the down payment capital, while buyers build equity through appreciation and loan paydown. The comparison period matters enormously — buying almost always wins at 30 years, while renting often wins at 3–5 years due to transaction costs and front-loaded mortgage interest.

The Price-to-Rent Ratio

A useful rule of thumb for your market is the price-to-rent ratio: divide the median home price by the annual rent for a comparable property. A ratio under 15 generally favors buying; 15–20 is neutral; above 20 tends to favor renting financially. In expensive coastal markets (New York, San Francisco, Seattle), price-to-rent ratios often exceed 30, making renting the more cost-effective choice for many residents — especially those with a shorter timeline. In affordable Midwest and Southern markets, ratios often fall below 15, making buying clearly advantageous.

Non-Financial Factors

The calculator handles the financial analysis, but the rent vs. buy decision involves non-quantifiable factors too:

Assumptions That Affect the Result

The model's recommendation is sensitive to several input assumptions. Key ones to verify against your market:

Running the calculator at different assumptions reveals which option is more robust. If buying wins at a wide range of appreciation and investment return scenarios, it's the stronger choice for your situation.

Frequently Asked Questions