What time horizon should I use for the rent vs buy decision?

Under 5 years, renting almost always wins financially because transaction costs buying closing costs of 2-5% and selling costs of 5-6% consume too much of any short-term equity gain. Between 5 and 7 years is a grey zone where the answer depends heavily on local market appreciation rates, rent growth, and your investment returns.

How does down payment size affect whether renting or buying is better?

A larger down payment reduces your monthly mortgage payment, eliminates PMI at 20% or more, and lowers total interest paid over the life of the loan. A small down payment of 3-5% leaves you paying PMI and higher monthly costs, which extends the break-even period and makes renting the smarter choice for the first several years.

Is buying always better than renting over the long term?

Not always. Even over 20 or 30 years, if home appreciation is flat and stock investments perform well, renting can still win. But local housing markets vary enormously. Always run your actual local numbers with conservative assumptions.

What maintenance costs should I expect as a homeowner?

Industry standard is 1% of home value per year. For a $400,000 home that is $4,000 annually. Covers HVAC, roof, appliances, painting, plumbing, electrical. Older homes may cost 1.5-2% annually. Major unexpected expenses like a new roof ($8,000-15,000) can spike costs in any year.

How do market conditions affect the rent vs buy decision?

Market conditions dramatically shift the analysis. In high-rate environments above 6%, monthly mortgage payments are much higher, favoring renting. In cooling markets with flat or declining home prices, the equity-building argument for buying weakens. In hot markets with rapid appreciation, buying looks better because you lock in housing costs and capture equity gains.

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Rent vs Buy Calculator

Run a side-by-side scenario with crossover timing, wealth outcome, and year-by-year details.

Buy Scenario

Home PriceDown Payment (%)Mortgage Rate (%)

Rent + Invest Scenario

Monthly RentAnnual Rent Increase (%)Investment Return (%)Time Horizon (Years)

Side-by-Side Results

Run the comparison and unlock full outputs.

Home / Finance / Rent vs Buy Calculator · Last updated June 4, 2026 · Expert reviewed

How to use this calculator for a real decision

This calculator compares the total wealth outcome of renting versus buying a home over any time horizon from 1 to 40 years. Start by entering the home price, your down payment percentage, and the current mortgage rate for the buy scenario. The calculator assumes a standard 30-year fixed-rate mortgage with amortized monthly payments.

For the rent scenario, enter the monthly rent for a comparable home, expected annual rent increases, and the annual investment return you expect to earn on the money you save by not buying. This includes both the down payment amount and any monthly cash flow differences between renting and buying.

The most critical inputs to test are your time horizon and down payment percentage. Run the same scenario with a 5-year, 7-year, and 10-year horizon. Then re-run with 5% down versus 20% down. Finally, stress-test your assumptions by comparing a 3% home appreciation scenario with a 0% downside case. This sensitivity analysis reveals whether your decision is robust across different market conditions.

Market conditions matter enormously. In a high-rate environment with 7%+ mortgages, monthly payments on a median-priced home can exceed comparable rent by 30-50%, making renting the clear winner on cash flow alone. But if you expect home prices to appreciate 4-5% annually and rents to rise 4-5% as well, buying builds equity that compounds over time. The calculator shows you exactly where the crossover year falls, so you can see how long you must stay in the home to break even.

Do not forget to account for the opportunity cost of your down payment. That $60,000 down payment could be $120,000 after 10 years in a diversified stock portfolio at 7% returns. By tying it up in a home, you give up that growth. The calculator models this by assuming the renter invests the entire down payment amount from day one, plus any monthly savings from renting versus owning.

Worked example: $300,000 home, 20% down, 5-year and 10-year scenarios

Scenario setup: A $300,000 home with 20% down ($60,000 down payment, $240,000 loan) at a 6.5% mortgage rate. Monthly mortgage payment including principal and interest is approximately $1,517. Adding 1.2% annual property taxes ($300/month) and 0.5% home insurance ($125/month) brings total monthly housing cost to roughly $1,942. Renting a comparable home costs $1,800/month with 3% annual rent increases.

Renter scenario: The renter invests the $60,000 down payment immediately in a diversified portfolio earning 7% annual returns. Each month, the renter saves the difference between the buy cost ($1,942) and their rent ($1,800) about $142 in year one and invests that too. As rent increases 3% per year, the monthly savings shrink over time and eventually reverse.

5-year outcome: Over 5 years, the buyer accumulates roughly $30,000 in home equity through principal paydown and 3% annual appreciation. But the buyer also pays approximately $72,000 in mortgage interest, $18,000 in property taxes and insurance, $12,000 in maintenance (1% of home value), and $12,000 in buying/selling closing costs (4% purchase plus 6% sale). Total buy cost is about $114,000. The renter investment of $60,000 grows to roughly $84,000 at 7%, and additional monthly savings add about $8,000. Total renter wealth approximately $92,000. At 5 years, the renter is ahead by roughly $22,000.

10-year outcome: Extending to 10 years changes the math. Buyer equity grows to approximately $100,000 while monthly costs stay fixed. The renter now faces year-10 rent of $2,340/month, eating into investment contributions. The renter portfolio grows to roughly $158,000. But the buyer home is now worth about $403,000 with remaining loan balance of about $189,000, yielding net equity of about $214,000. After 10 years, buying is ahead by approximately $56,000. The crossover year in this scenario is typically year 7 or 8.

Sensitivity test at 0% appreciation: If home prices stay flat over 10 years, buyer equity drops to roughly $111,000. Renter wealth at 7% stays at $158,000. Renting now wins by $47,000 even at 10 years. This illustrates how critical your local market outlook is to the decision.

Common mistakes to avoid

Ignoring maintenance and transaction costs: Buyers pay 2-5% in closing costs and 5-6% in selling costs. A $400,000 home can cost $30,000+ to buy and sell.
Comparing rent to mortgage principal only: True monthly cost includes property taxes (0.5-2%), insurance ($100-300/mo), PMI (0.5-1.5%), HOA fees, and maintenance (1%). These add 30-50% to quoted mortgage payments.
Forgetting down payment opportunity cost: A $50,000 down payment at 7% grows to $98,000 in 10 years or $194,000 in 20 years.
Assuming 3-5% appreciation is guaranteed: Historical average is 3-4% but varies enormously. From 2006-2011 many markets saw 20-40% declines. Always run a downside case.
Ignoring lifestyle factors: Stability, freedom to renovate, and school districts have real value. Flexibility of renting matters if your career is uncertain.
Using a single scenario: Run best case, base case, and worst case at both short and long time horizons for a complete picture.

Key terminology

EquityCurrent market value minus remaining mortgage balance, growing through principal paydown and market appreciation.

PMIPrivate Mortgage Insurance required under 20% down, costing 0.5-1.5% of loan annually.

Closing costsOne-time purchase fees (2-5%) and selling costs (5-6%) including commissions and transfer taxes.

Opportunity costThe return you forgo from your down payment and monthly savings that could otherwise be invested.

Crossover yearThe year total wealth from buying first exceeds wealth from renting. The key number in your decision.

AmortizationEarly mortgage payments are mostly interest; later payments shift to principal. Equity accelerates over time.

Methodology and sources

The calculator uses standard mortgage amortization formulas. Buy scenario assumes 1% of home value for maintenance annually (NAR standard). Rent scenario compounds rent at specified increase and invests down payment plus cash flow surplus at specified return, compounded monthly.

Home appreciation applied once per year. Renter investment modeled as lump sum plus monthly dollar-cost-averaged contributions. Negative cash flow subtracts from account. Crossover year is first year cumulative rental cost exceeds cumulative purchase cost.

Disclaimer: Educational comparison only. Consult a licensed financial advisor before making purchase decisions.

Frequently asked questions

Does the calculator include tax benefits of homeownership?

Mortgage interest and property tax deductions are modeled approximately. Most homeowners no longer itemize after the 2018 tax law changes doubled the standard deduction, so the net benefit is smaller than many assume.

What time horizon should I use?

Under 5 years renting usually wins because transaction costs consume equity. Five to seven years is a grey zone. Over 7-10 years buying typically pulls ahead as equity accumulates.

How does down payment size affect the decision?

Larger down payments reduce monthly costs and eliminate PMI, making buying more attractive. Small down payments (3-5%) mean higher costs and PMI, extending the break-even period.

Is buying always better over the long term?

Not always. If appreciation is flat and investments perform well, renting can win even over 20-30 years. Local markets vary enormously.

What maintenance costs should I expect?

Industry standard is 1% of home value per year. This calculator includes 1% in the buy scenario. Older homes may cost 1.5-2% annually.

How do market conditions affect the decision?

High-rate environments favor renting since mortgage payments exceed rent. Cooling markets weaken the equity argument. Hot markets with rapid appreciation favor buying.