The Universal Calculation Engine
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The Universal Calculation Engine

Rent vs Buy

A lease versus a deed—plus insurance, repairs, taxes, and the chance you move sooner than planned.

Start this lessonWhat rent versus buy compares beyond monthly payment

The real comparison

Renting writes a predictable check for housing service. Buying swaps some rent for mortgage interest, taxes, insurance, maintenance, and transaction costs—while tying up a down payment that could have lived in investments.

Why it matters

A payment quote that ignores roof, HVAC, and selling costs can make ownership look cheaper than it is. A rent figure that ignores annual increases can make leasing look safer than it is.

Break-even thinking

Staying longer spreads closing costs and fixed fees over more months. Moving in two years after buying often loses to renting once you include sell-side friction—even if prices rise modestly.

Line items to include

  • Mortgage: principal and interest (P&I).
  • Property tax, insurance, HOA, utilities you would not pay as a renter.
  • Maintenance reserve (often modeled as 1% of value per year as a rough rule, not a guarantee).
  • Opportunity cost on down payment.

Run your city numbers

Mistakes

  • Counting full P&I as “building equity” in year one—early years are interest-heavy.
  • Ignoring that selling costs often land near 5–10% of price all-in.

Use the calculator

FAQ

Is buying always an investment?

A primary home is part investment, part consumption—you live in it.