Rent vs Buy Calculator

To use this rent vs buy calculator, follow these steps:

1. Enter the home price of the property you are considering purchasing. Use recent comparable sales in your target neighborhood for the most accurate result.
2. Set your down payment percentage using the slider. A 20% down payment avoids private mortgage insurance (PMI), but many buyers put down as little as 3% to 10%.
3. Enter the mortgage interest rate offered by your lender. Check current rates from multiple lenders, including banks, credit unions, and online mortgage companies.
4. Choose a loan term of 15 or 30 years. A 15-year term has higher monthly payments but dramatically lower total interest.
5. Enter your current or expected monthly rent for a comparable property in the same area.
6. Adjust the annual rent increase to match your local market. The national average is around 3% to 4%, but some cities see increases of 5% or more.
7. Set the annual home appreciation rate. The long-term national average is approximately 3%, but this varies widely by region.
8. Enter the property tax rate for your county or municipality. You can find this on your local tax assessor website.
9. Optionally adjust home insurance, maintenance costs, and closing costs in the advanced settings for a more precise comparison.
10. Choose how many years to compare. Try several timeframes to see how the recommendation shifts over time.

The calculator instantly displays the total cost of each option, potential savings, equity built, and a clear recommendation. Key assumptions to consider include future interest rate changes if you have an adjustable-rate mortgage, the likelihood of major home repairs, and whether you would actually invest the down payment savings if you chose to rent.

A rent vs buy calculator is a financial planning tool that compares the total cost of renting a home with the total cost of buying one over a specified period. It accounts for mortgage payments, property taxes, insurance, maintenance, home appreciation, rent increases, and the equity you build as a homeowner. The rent versus buy debate is one of the most consequential financial decisions most adults face, and the right answer depends on far more than just comparing your monthly rent to a mortgage payment.

When renting makes financial sense, it is usually because you plan to stay in an area for fewer than five years, you live in a high-cost-of-living market where price-to-rent ratios are extremely high, or you value the flexibility to relocate without the friction of selling a property. Renters also avoid the risk of local housing downturns and are not responsible for major repairs like a new roof or HVAC system.

When buying makes sense, it is typically because you plan to stay put for at least five to seven years, you can afford a comfortable down payment without depleting your emergency fund, and local market conditions favor ownership. Homeowners benefit from building equity with every mortgage payment, potential home price appreciation, and significant tax advantages including the mortgage interest deduction and property tax deduction.

Beyond the monthly payment, a thorough comparison must account for the opportunity cost of your down payment (what that money could earn if invested in the stock market instead), ongoing maintenance and repair costs (typically one to two percent of the home value per year), closing costs at the time of purchase, and the tax benefits of homeownership. On the renting side, you must factor in annual rent increases, renters insurance, and the fact that rent payments build zero equity. The break-even timeline is the number of years it takes for buying to become cheaper than renting after accounting for all these factors. In most U.S. markets, that break-even point falls somewhere between three and seven years, though it can be much longer in expensive coastal cities.

The rent vs buy comparison relies on a total cost of ownership framework that captures all expenses and gains on both sides of the equation:

Total Cost of Buying = Down Payment + Closing Costs + Total Mortgage Payments + Total Property Taxes + Total Insurance + Total Maintenance − Home Equity Built

Home Equity Built = Down Payment + Cumulative Principal Paid + Cumulative Home Appreciation

Monthly Mortgage Payment (M):

M = P × [r(1 + r)n] / [(1 + r)n − 1]

Total Cost of Renting = Sum of all monthly rent payments with annual increases applied. For a constant annual rent growth rate g, this can be expressed as: R × 12 × [(1 + g)t − 1] / g

Opportunity Cost of Down Payment refers to the potential investment return you forgo by tying up capital in a home. If D is the down payment and i is the expected annual investment return, the opportunity cost over t years is: D × [(1 + i)t − 1]

The following table defines each variable used above:

Net Savings = Total Cost of Renting − Total Net Cost of Buying. A positive result means buying is cheaper; a negative result means renting is cheaper over the chosen period.

Scenario 1 — High-Cost City Where Renting Wins: Consider a $750,000 condo in San Francisco with 20% down ($150,000), a 6.75% mortgage rate on a 30-year loan, property taxes at 1.2%, and monthly rent for a comparable unit at $2,800 increasing 3% per year. The monthly mortgage payment alone is approximately $3,893, and when you add property taxes ($750/month), insurance ($150/month), maintenance ($625/month), and HOA fees, the total monthly housing cost exceeds $5,400. Over a 7-year horizon, the total net cost of buying (after subtracting equity built of roughly $215,000) is approximately $310,000, while total rent paid is about $261,000. Renting saves nearly $49,000 in this scenario. The break-even point does not arrive until approximately year 11, making renting the clear winner for anyone who might relocate within a decade.

Scenario 2 — Suburban Area Where Buying Wins: A $300,000 single-family home in suburban Texas with 20% down ($60,000), a 6.5% rate on a 30-year mortgage, property taxes at 2.0%, and comparable rent at $1,600 per month increasing 4% per year. The monthly mortgage payment is about $1,517, with total monthly housing costs around $2,267 including taxes, insurance, and maintenance. Over 7 years, the total net cost of buying is approximately $100,000 (after subtracting about $127,000 in equity built), while cumulative rent totals about $152,000. Buying saves roughly $52,000 over seven years, with the break-even point occurring around year 3. The higher rent growth rate and more affordable home price strongly favor ownership here.

Scenario 3 — Break-Even Analysis: A $450,000 home in Denver with 10% down ($45,000), a 6.5% mortgage rate, property taxes at 0.6%, and rent at $2,200 per month increasing 3.5% annually. With the smaller down payment, the buyer also pays PMI of roughly $200 per month until reaching 20% equity. Over 5 years, renting costs about $147,000 while buying costs approximately $155,000 net, making renting cheaper by $8,000. However, extending the analysis to 7 years flips the result: buying costs about $195,000 net versus $217,000 in cumulative rent, saving the buyer $22,000. The break-even point in this scenario falls at approximately 5.5 years, illustrating why financial advisors commonly recommend buying only if you plan to stay at least five to seven years.