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Rent vs Buy Calculator (US)

Compare the true long-term cost of renting vs buying a home. Accounts for mortgage payments, property tax, maintenance, appreciation, and equity buildup.

Last reviewed 15 August 2026

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When to use this calculator

  • Before buying, renting, refinancing or reviewing a property investment.
  • When you want to compare cash flow, tax, yield or ownership costs.
  • When you need a fast estimate before speaking to an agent, lender or adviser.
  • When you want to see how a rate or price change moves the result.

A realistic US planning example

Use these sample inputs as a quick scenario test, then change one variable at a time to compare outcomes.

A realistic US planning example
InputValue
Home Price ($)$0.30
Down Payment ($)$70,000
Mortgage Rate (%)$280,000
Monthly Rent ($)6

After entering these figures, review buy advantage vs renting, total rent paid and projected equity together rather than in isolation. Then rerun the tool with one input adjusted.

How to read your results

Buy Advantage vs Renting

The figure produced by this output for the inputs you entered. Change one variable at a time if you want to see what drives it.

Total Rent Paid

The headline outcome of this calculation. It is most useful when read alongside the supporting metrics rather than in isolation.

Projected Equity

The figure produced by this output for the inputs you entered. Change one variable at a time if you want to see what drives it.

Monthly Mortgage

The figure produced by this output for the inputs you entered. Change one variable at a time if you want to see what drives it.

Method & assumptionsAuthoritative sources

This rent vs buy calculator evaluates the financial outcome of purchasing a home versus continuing to rent over a user-defined time horizon. The buy scenario totals all out-of-pocket costs — down payment, closing costs (estimated at 3%), monthly mortgage payments, annual property tax (1.1%), and annual maintenance (1%) — then subtracts the net equity realised at sale (future home value minus remaining mortgage balance minus selling costs of 6%). The rent scenario totals all rent paid over the same period. The difference represents the financial advantage or disadvantage of buying. A positive 'buy advantage' means that over the chosen period, buying costs less in total than renting. Assumptions such as 3% annual appreciation and fixed maintenance costs are simplified estimates; market conditions in your specific location may differ substantially.

Common mistakes

  • !Using an assumption that is not supported by a current local quote, bill, statement or official source.
  • !Treating a generic estimate as a lender, provider, payroll or tax authority decision.
  • !Mixing monthly and annual inputs without converting them consistently.
  • !Testing only one scenario instead of checking how a cautious assumption changes the result.

What to do next

  • Run a second scenario with a cautious assumption so you can see the downside clearly.
  • Compare the result with the related calculators below before making a decision.
  • Check current local rules, eligibility and provider terms before applying or committing money.
  • Keep a record of the assumptions so you can update the estimate when a quote, bill or pay figure changes.

Frequently asked

The calculator compares total out-of-pocket costs of buying (down payment, closing costs, mortgage payments, property tax, and maintenance, minus home equity at sale) versus renting (total rent paid) over your chosen time horizon. If the buy total is lower, buying is the more cost-effective choice over that period.

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