Rent vs Buy Calculator

Read the calculator result

Rent and a mortgage payment are different kinds of cash flows. Mortgage principal can build equity, while ownership also involves costs that don’t build equity. Renting can leave money available to invest, but that advantage depends on actually saving the difference. This calculator compares both paths over one holding period using an explicit shared cash budget.

The buyer’s ending position includes home value after selling costs and mortgage payoff, plus any investment balance accumulated when buying costs less each month. The renter’s position includes invested upfront cash and monthly savings when renting costs less. The result is a scenario comparison, not a home-price forecast, loan approval, or recommendation about where you should live.

Compare housing of reasonably similar usefulness. A larger purchased home and a smaller rental may have different space, location, upkeep, and commuting benefits. The tool prices the entered cash flows; it doesn’t assign a financial value to those differences.

Rent vs buy: enter upfront and recurring costs separately

The purchase price minus the cash down payment becomes the mortgage principal. Purchase closing costs are paid separately in cash. They aren’t added to the loan by this model. The contractual mortgage rate and term determine a fixed principal-and-interest installment using equal monthly periods.

Enter first-year property taxes, homeowner insurance, and maintenance as annual dollar amounts. HOA dues are monthly. The calculator divides the annual expenses by twelve, adds the monthly HOA amount, and applies the ownership-expense growth assumption at annual anniversaries. It doesn’t calculate property taxes from an assessed value or insurance from a location.

For renting, enter monthly rent and renter insurance. Both rise or fall together at the entered annual rent-growth rate, beginning with the next model year. If your insurance and rent follow different patterns, recognize that this combined assumption is an approximation.

The CFPB’s home-cost planning guidance identifies expenses beyond principal and interest, including taxes, insurance, upkeep, and utilities. This tool doesn’t automatically include every possible expense. Differences in utilities, moving costs, mortgage insurance, major renovations, or security deposits remain outside its stated scope.

How the calculator works

Both alternatives begin with the same available cash: the entered down payment plus cash purchase closing costs. The buyer spends that amount at purchase. The renter invests it immediately. This prevents the comparison from giving the buyer a down payment while pretending the renter had no equivalent resources.

Each month, the common housing-plus-investing budget is the larger of that month’s ownership outflow and rental outflow. The cheaper side invests the difference at month end. Existing investments grow first using the entered effective annual return converted to a monthly equivalent. If the cheaper side changes over time, the newly cheaper side receives the subsequent deposits.

This is an analytical budget rule. It doesn’t establish that either monthly outflow is affordable. Nor does it assume the more expensive housing option has more income. Both paths use the same resources in every modeled month, which makes their eventual wealth positions comparable.

At the endpoint, net sale equity = home value × (1 − selling-cost percentage) − remaining mortgage. Buyer wealth adds the buyer’s investment balance to that equity. Renter wealth is the renter’s investment balance. Buyer advantage = buyer wealth − renter wealth. A negative result favors renting within the entered scenario.

Keep growth and payment timing clear

Home value changes every month using the monthly equivalent of the entered annual appreciation or decline. At a whole-year endpoint, this matches annual compound growth. Rent and recurring owner expenses instead change once per model year. Mortgage principal and interest follow their amortization schedule, and installments stop when the loan is paid.

The investment-return assumption is also an effective annual figure. A constant return is a simplification; the calculator doesn’t simulate market volatility, losses arriving in different sequences, or taxes on realized investment gains. A lower assumed return changes the opportunity cost of committing cash to the home.

Maintenance is treated as spending required by the ownership scenario. It doesn’t automatically increase home value. Appreciation is a separate assumption, so a repair budget shouldn’t be counted again as an additional investment gain.

Rent vs buy calculator example: a seven-year housing comparison

Consider a $350,000 home, a $70,000 down payment, $10,000 of cash closing costs, and a 30-year mortgage at an illustrative 6% contractual rate. First-year owner expenses are $4,200 of property taxes, $1,500 of insurance, and $3,500 of maintenance, with no HOA dues.

The rental starts at $2,000 monthly plus $20 of renter insurance. Assume 3% annual home appreciation, 3% annual rent and renter-insurance growth, 2% annual ownership-expense growth, a 4% effective investment return, and selling costs equal to 6% of the eventual home value. None of these assumptions is a current offer or prediction.

Renting costs less each month in this example, so the renter invests the differences and the initial $80,000. The buyer’s additional investment balance stays zero. The first monthly rental saving is about $425.41, but subsequent deposits change as housing expenses grow.

The home’s sale value isn’t the buyer’s spendable wealth. Selling costs are about $25,827.35 and the mortgage still needs to be paid. Subtracting both produces the $153,638.22 endpoint. Ignoring either item would overstate the amount available after selling.

Test appreciation and holding time before drawing a conclusion

Keep every default assumption except home appreciation, which you change to zero. The ending home value stays $350,000, buyer wealth becomes $78,009.72, and renter wealth remains $133,213.19. The buyer advantage becomes −$55,203.47. The result changes because the sale value changes; taxes and maintenance remain the entered dollar schedules.

Alternatively, restore 3% appreciation and shorten the holding period to three years. Buyer wealth becomes $90,471.79 and renter wealth $104,514.80, leaving buying behind by $14,043.01. A result that favors buying at seven years can favor renting at three because transaction costs and principal reduction have different effects over time.

The CFPB’s rent-or-buy discussion explains that equity depends on both mortgage repayment and property value, and that selling costs matter when moving. The calculator illustrates those relationships with your assumptions; it doesn’t identify a universal year when owning becomes better.

Read the wealth chart and cost totals correctly

The chart shows hypothetical liquidation wealth at matching dates. Buyer wealth at month zero already subtracts a hypothetical immediate selling cost. In the example, it starts below the $70,000 down payment because selling a newly purchased home would have costs. This is a comparison convention, not a prediction that you’ll sell immediately.

A negative equity value means the modeled sale proceeds wouldn’t cover the remaining mortgage after selling costs. It’s retained as a shortfall rather than clipped to zero. The calculation doesn’t determine whether a lender would allow a sale or how any shortfall would be funded.

Housing outflow totals are also different from wealth. Buyer outflows include initial cash and housing payments; renter housing outflows exclude money transferred to investments. Don’t subtract those totals to recreate the final advantage without accounting for assets, debt, and invested cash. The ending-wealth comparison already performs that reconciliation.

Principal repayment needs the same care. It’s included in the buyer’s monthly cash outflow and reduces the mortgage balance used in sale equity. Adding principal paid as a separate bonus to buyer wealth would count the same benefit twice. The principal-and-interest schedule handles that change in the liability automatically.

Build a decision around documented assumptions

Start with a plausible holding period, actual housing alternatives, and written cost estimates. Then test lower appreciation, higher upkeep, and different rental growth. Change one input at a time before combining an adverse scenario, so you can see which assumption drives the conclusion.

Keep affordability and transaction cash separate. The mortgage affordability calculator explores an entered payment budget, while the cash to close calculator organizes transaction funds. Neither proves approval, and neither replaces the location-specific costs absent from this comparison.

No income-tax deduction is assumed for owning, and no capital-gains or investment tax is computed. PMI, renovations, security deposits, concessions, and relocation costs aren’t modeled. If these are material, treat the result as an incomplete scenario until they are considered in a more detailed comparison.

Rent vs buy calculator questions

Does the model assume rent is wasted money?

No. Rent pays for housing, and the renter retains investments created by the equal-budget comparison. Ownership spending is also separated from the equity that remains after debt and selling costs.

Can the buyer invest monthly savings too?

Yes. Whenever rental outflow exceeds ownership outflow, the buyer invests the difference at month end. The rule works in both directions.

Does appreciation raise the property-tax input automatically?

No. Property taxes follow the separate ownership-expense growth assumption. The calculator doesn’t reproduce local assessments or tax rules.

Is the higher ending wealth guaranteed?

No. It follows from fixed assumptions about prices, costs, saving behavior, and returns. Actual conditions and the timing of a move can produce a different outcome.