Rent vs Buy Calculator

How this rent vs buy calculator works

This rent vs buy calculator compares renting and buying over time. It works as a mortgage vs rent calculator, home equity vs renting calculator, and renting plus investing calculator. It estimates renter investment growth from the down payment and monthly cost difference, then compares it with homeowner equity after mortgage balance, taxes, insurance, and home appreciation.

What is the break-even year?

The break-even year is the first year when buying is estimated to cost less than renting. If there is no break-even within your selected horizon, the calculator shows which option is cheaper over that time period.

A break-even result is most useful when it lines up with your real plans. If the calculator says buying wins in year 9 but you may move in year 4, the ownership path may still be too slow for your situation. If buying wins early even after lowering appreciation and raising maintenance, the case for ownership is stronger.

Real scenario walkthrough

Suppose a home costs $650,000, the down payment is $130,000, the mortgage rate is 5.25%, and comparable rent is $2,400 per month. Buying starts with a large cash outflow but builds equity through principal payments and appreciation. Renting keeps monthly housing costs lower, so the down payment and monthly cost difference can be invested. The better result depends on how fast home equity grows compared with the renter portfolio.

Now change only one input at a time. Raise maintenance costs, shorten the holding period, or reduce the investment return on renter savings. Watching the break-even year move is often more useful than chasing one supposedly perfect answer.

When renting can be the better financial move

Renting can make sense when you need flexibility, expect to move soon, or live in a market where home prices are high compared with rents. It can also win when the down payment and monthly savings are invested consistently. The renter path is weakest when the money that could have been invested is instead spent without a plan.

When buying can be the better financial move

Buying becomes more attractive when you expect to stay for several years, can handle maintenance costs, and purchase a home that fits your budget without stretching every month. Principal repayment, appreciation, and stability can work together, but the benefit takes time because transaction costs and early mortgage interest are front-loaded.

How to interpret the graph

The graph compares estimated net worth from buying against renting plus investing. If the buying line crosses above the renting line, that is the estimated point where home equity has overtaken the renter portfolio. If the renting line stays ahead, flexibility and investment growth are doing more work than homeownership in that scenario.

Focus on the distance between the two lines, not just which line is higher. A small difference means lifestyle, school district, commute, and risk tolerance may matter more than the modeled dollar edge. A large difference is a sign to revisit the assumptions and understand what is driving the result.

Assumptions and limitations

The model includes simplified ownership costs for taxes, insurance, and maintenance. It does not include closing costs, selling costs, HOA fees, renovations, tax deductions, rent control, moving costs, or lifestyle value. A home is also less liquid than an investment account, so the higher net worth path is not always the easier path.

Inputs that usually change the answer

• Time horizon: Short stays often favour renting because buying and selling costs have less time to spread out.
• Mortgage rate: Higher rates increase the monthly ownership cost and slow principal payoff.
• Home appreciation: A small change in long-term appreciation can have a large effect on homeowner equity.
• Investment return: Renting looks stronger only if the down payment and monthly savings are actually invested.
• Maintenance and taxes: These costs can make ownership more expensive than the mortgage payment suggests.

Calculator methodology

Formula used: buying estimates equity after mortgage payoff, appreciation, taxes, insurance, and maintenance. Renting estimates investment growth from the down payment and any monthly cost difference.

How to act on it: test the decision at your real expected move date. If buying only wins after a longer stay than you can commit to, renting may preserve flexibility.

What this calculator does not include: closing costs, selling costs, HOA fees, renovations, tax deductions, rent control, moving costs, or personal lifestyle value.

Common mistakes

Do not compare rent only against the mortgage payment. Ownership also includes taxes, insurance, maintenance, and transaction costs. Another mistake is ignoring the renter's ability to invest the down payment and monthly savings.

Source notes

The housing-cost discussion is informed by the Consumer Financial Protection Bureau, which notes that ownership costs include more than mortgage principal and interest. This page compares modeled scenarios; it does not decide whether a home is affordable for a specific household.

For the broader decision framework, continue with the Rent vs Buy Guide.

Should I rent or buy a house?

The answer depends on mortgage rate, home price, down payment, expected appreciation, rent, how long you will stay, and the investment return you could earn by renting and investing instead. This tool helps compare the opportunity cost of buying a house against the long-term wealth path of renting.

Rent or buy FAQ

Is buying always better long term?

No. Buying can build equity, but high rates, taxes, insurance, maintenance, transaction costs, and low appreciation can make renting plus investing cheaper for some households.

What costs are not included?

This is a simplified model. It does not include closing costs, selling costs, HOA fees, maintenance, tax deductions, rent increases, or personal lifestyle value. Treat it as a planning estimate, not a final homebuying decision.

What if I plan to move soon?

Shorter stays often make renting more attractive because buying and selling costs have less time to spread out. If you may move within a few years, test a shorter horizon before assuming ownership wins.

Last reviewed: May 25, 2026