Buying cash flow
Mortgage payment = Principal + Interest
Owner cash cost also includes taxes, insurance, maintenance, fees, and applicable PMI
Buyer upfront cash includes the down payment and closing costs
Rent vs Buy Calculator
Compare the estimated net financial position of renting and buying over the same planned stay. The model includes mortgage equity, transaction costs, and investment opportunity cost.
Compare your options
Enter your own core scenario. Advanced fields start with editable planning assumptions, not market forecasts.
years
Enter a value from 1 to 30.USD
Enter a value from 0 to 1000000.USD
Enter a value from 1 to 100000000.% APR
Enter a value from 0 to 50.years
Enter a value from 1 to 50.Down payment
%
Enter a value from 0 to 100.Your comparison will appear here
Enter your rent, home price, down payment, financing details, and planned stay to compare renting and buying.
Rent vs buy planning disclaimer: This calculator provides a planning estimate based on the assumptions entered. It does not predict future home prices, rent, investment returns, taxes, insurance, transaction costs, or mortgage outcomes and is not financial, tax, legal, or real-estate advice.
Is Renting or Buying Better?
Neither option is universally better. The financially stronger choice depends on how long you stay, the cash required upfront, monthly housing costs, mortgage terms, home appreciation, selling costs, and what unused cash could earn elsewhere.
Use the result as a scenario comparison, then test less favorable assumptions. Stability, flexibility, maintenance responsibility, and lifestyle needs also matter even though they are not dollar outputs.
What This Rent vs Buy Calculator Compares
The calculator compares the estimated net financial position of renting and buying over the same holding period. It includes mortgage amortization, home equity, rent growth, property costs, selling costs, home appreciation, and the investment opportunity cost of cash-flow differences.
The ending comparison is not a forecast or a simple rent-versus- mortgage-payment test. It estimates renter assets and the buyer's investments plus net sale equity under the assumptions entered.
How it works
- 1.Start with the upfront cash required for renting and buying.
- 2.Invest the initial cash difference on the lower-upfront-cost side.
- 3.Simulate rent growth and owner expenses month by month.
- 4.Split each mortgage payment into interest and principal while reducing the loan balance.
- 5.Track the estimated home value and mortgage balance.
- 6.Invest the monthly cash-cost difference on whichever side spends less that month.
- 7.Deduct estimated selling costs as if the home were sold at each point.
- 8.Compare renter assets with the buyer's investments plus net sale equity and locate the first break-even month.
When to use
- 🏡 Compare renting with buying before choosing a home or renewing a lease.
- ⏳ Test how a shorter or longer holding period changes the modeled outcome.
- 💵 Compare different down payments, mortgage rates, and monthly housing costs.
- 📈 Test how appreciation and investment-return assumptions affect the result.
- 🧾 See how closing costs, selling costs, maintenance, taxes, insurance, HOA fees, and PMI influence the comparison.
- 🇺🇸 🇨🇦 Build a planning scenario in USD or CAD while keeping local assumptions editable.
Why Rent vs Mortgage Payment Is Not Enough
Renting cash flow
Renter cash cost includes rent, renter's insurance, and applicable one-time fees
Rent and recurring costs change using the entered growth assumptions
Cash-flow differences may be invested on the lower-cost side
Comparing rent only with principal and interest omits transaction costs, ownership expenses, equity, and the possible return on cash not tied up in a home. V1 models those items month by month before comparing the two ending net positions.
Principal, Equity, and Net Sale Equity
Mortgage and equity
Loan principal = Home price − Down payment
Gross home equity = Estimated home value − Remaining mortgage
Net sale equity = Estimated home value − Remaining mortgage − Selling costs
Final comparison
Difference = Buy net position − Rent net position
Positive difference → buying is ahead
Negative difference → renting is ahead
Mortgage principal is a cash outflow, but the model does not treat it as an unrecoverable economic cost. Paying principal reduces the loan balance and increases equity. Interest and other ownership expenses do not reduce the mortgage balance. Selling costs are deducted so the comparison uses net sale equity rather than gross equity.
Why Investment Opportunity Cost Matters
A larger down payment and closing-cost requirement can leave the renter with more cash potentially available to invest. If buying has the higher monthly cash cost, the model adds that difference to the renter's hypothetical investment; when renting costs more, the buyer receives the contribution instead.
Existing balances compound before the current month's contribution is added. The selected return is a planning assumption, not a guaranteed investment result.
What Break-Even Means
Break-even is the first month when the modeled buying net position moves from below the renting position to equal or above it. Month 0 can already favor buying, and a first crossing can later reverse. Break-even therefore does not mean buying will remain ahead forever.
If no crossing occurs during the selected stay, the calculator says so rather than inventing a universal break-even year. This is not a home-price-to-rent-ratio shortcut.
What Costs Are Included?
Renting
- Monthly rent and rent growth
- Renter's insurance
- Security deposit
- One-time renter fees
Buying
- Down payment and closing costs
- Mortgage principal and interest
- Property tax and homeowner's insurance
- HOA or condo fees and maintenance
- PMI or mortgage insurance assumption
- Additional owner utilities and selling costs
Financial assumptions
- Home appreciation
- Investment return
- General inflation
How V1 Handles PMI or Mortgage Insurance
PMI is based on the remaining mortgage relative to the original purchase price. Estimated appreciation does not automatically cancel PMI. The charge stops when the configured loan-to-value threshold is reached. This is a transparent planning convention, not a simulation of lender approval or jurisdiction-specific mortgage-insurance law.
Worked Example Using the Production Formula
The current US defaults compare a $450,000.00 home with 20% down, a 6.5% mortgage over 30 years, $2,200.00 monthly rent, and a seven-year stay. All other values use the editable Formula V1 defaults shown in the calculator.
Modeled result
Renting is ahead by $40,131.79
Estimated home value
$553,443.24
Remaining mortgage
$325,498.48
Rent ending position
$234,869.96
Buy ending position
$194,738.16
Break-even
No break-even within seven years
In this scenario, the buyer builds equity as the mortgage balance falls and the estimated home value changes. However, transaction and ownership costs plus the renter's invested upfront and monthly cash differences leave renting ahead at year seven. Selling costs are deducted before the buyer's final position is compared.
Using the Calculator in the US and Canada
US and Canada modes change currency and planning defaults. Advanced assumptions remain editable, but the model does not automatically apply US federal or state tax treatment, Canadian provincial transfer taxes, jurisdiction-specific mortgage-insurance rules, or local property-tax law.
Enter estimates from the property, lender, insurer, and local authorities. The regional switch changes the planning framework; it does not supply live rates, prices, or location-specific legal rules.
Assumptions and Limitations
V1 also excludes income-tax deductions, capital-gains tax, first-time-buyer incentives, automatic mortgage rates, rent estimates, home-price forecasts, realtor-fee databases, and local property-tax databases. It cannot include every real-world cost. Replace defaults with estimates that fit the property, lender, location, and expected holding period whenever possible.
Results are estimates, not financial, tax, legal, lending, or real estate advice. Actual returns, appreciation, maintenance, closing costs, financing terms, and sale proceeds can differ materially.
FAQ
Is renting always cheaper than buying in the short term?
No. A short stay often makes buying's closing and selling costs more important, but the result still depends on rent, upfront cash, mortgage costs, appreciation, and investment-return assumptions.
What does break-even mean in a rent vs buy calculator?
Break-even is the first modeled month when buying's net position moves from below renting's position to equal or above it. A later reversal is possible, so the first crossing is not a guarantee that buying stays ahead.
Does this calculator include home equity?
Yes. It estimates the home's value, subtracts the remaining mortgage to find gross equity, and then subtracts estimated selling costs to find net sale equity.
Why does investment return affect rent vs buy results?
The model invests the side-to-side difference in upfront cash and monthly cash costs. A different assumed return changes the future value of those hypothetical investment balances.
Does the calculator include closing and selling costs?
Yes. Buyer closing costs are included in upfront cash, and estimated selling costs are deducted whenever the model calculates the buyer's net sale equity.
Is mortgage principal a cost in this comparison?
Principal is a cash outflow, but it is not treated as an unrecoverable economic cost. Each principal payment reduces the remaining mortgage and therefore increases the buyer's equity; interest and other ownership expenses do not.
Does the calculator include PMI or mortgage insurance?
Yes, as an editable planning assumption. V1 compares the remaining mortgage with the original purchase price and stops the charge when the configured loan-to-value threshold is reached.
Does the calculator include tax deductions?
No. It does not model mortgage-interest deductions, capital-gains tax, transfer-tax programs, or other federal, state, provincial, or local tax treatment.
Can I use this calculator in Canada?
Yes. Canada mode uses CAD and Canadian planning defaults, but it does not automatically apply provincial transfer taxes, local property-tax law, or jurisdiction-specific mortgage-insurance rules.
Why can buying cross break-even and later fall behind again?
Home value, mortgage amortization, investment growth, housing expenses, and selling costs evolve differently. Their combined monthly path can cross more than once during the selected period.