Rent vs Buy Calculator
Add up every dollar you'd spend on rent versus every dollar you'd spend to own — after mortgage interest, taxes, insurance, maintenance, and the equity you build. See the year buying actually pulls ahead.
Renting
Buying
Cumulative cost over time
Methodology & how to use this
What each side includes
Renting = sum of monthly rent over the horizon, growing at your rent-increase rate. Buying = down payment + buyer closing costs (default 3%) at year 0 + mortgage P&I (only during the loan term) + property tax + insurance + maintenance (as a % of home value) each year, minus the equity you've built (home value at the end minus remaining mortgage balance) net of selling costs (default 6%).
Escalation assumptions
Property tax grows with home appreciation each year (matching the way most assessors reappraise over time). Insurance grows at 3%/year. Maintenance is recomputed against the current home value. Both closing costs are one-time — buyer costs are added at year 0, selling costs are deducted only from the terminal equity credit.
The assumptions to challenge
Appreciation and rent-increase rates dominate long-horizon results — test both directions. We don't model the opportunity cost of the down payment invested elsewhere or the tax deductibility of mortgage interest. Treat this as a shape-of-the-answer tool, not a decision-locker.
Frequently asked questions
Keep running the numbers
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