$450,000 home versus $2,600 monthly rent

Cost or constraint

Buying closing costs: $12,000

Timing or value

Selling cost after five years at 6% of value: about $27,000 before appreciation

Cost or constraint

Mortgage principal becomes equity, interest does not

Timing or value

Property tax, insurance and maintenance continue

Cost or constraint

A short holding period gives transaction costs fewer years to spread

Keep the time period, usage and exit point consistent across both choices.

Compare the alternatives on equal terms

Model two complete cash-flow paths

The renter pays rent, insurance and moving costs; the buyer pays closing, interest, tax, insurance, maintenance and sale costs while accumulating equity.

Use a common exit date

Compare net wealth or total consumed cost at three, five, seven and ten years. A single “break-even year” depends on every growth assumption.

Separate appreciation from affordability

Home appreciation is uncertain and location-specific. Run zero, lower and higher cases instead of letting one forecast decide.

Value flexibility carefully

Moving costs and lease terms affect renters; sale time and transaction costs affect owners. Do not assign a fake dollar value to preference without stating it.

This decision belongs in The Real Cost of Homeownership. Use Home Sale Transaction Costs: Calculate Net Equity, Not Sale Price to check the next assumption, then test the numbers in the Rent vs. Buy Calculator.

When the buy case uses a smaller down payment, include private mortgage insurance in the holding-period cost.

Make both options comparable

Renting and buying should be compared through the same move date. Include transaction costs and ending equity, then vary appreciation, rent growth and maintenance rather than allowing one forecast to decide.

Inputs that define the shared horizon

  • Expected move date and realistic selling costs.
  • Rent, increases and renter costs over the same period.
  • Mortgage balance, carrying costs and a home-value range at exit.
  • Use the same home quality and time horizon.
  • Model mortgage balance and all carrying costs.
  • Model renter cash flow and retained upfront cash.
  • Subtract sale costs and payoff at each exit date.
  • Run appreciation, rent-growth and maintenance ranges.

Compare both paths on the same clock

Rent vs. Buy Calculator

Keep principal-built equity separate from costs consumed during the same years.

Where the comparison stops being fair

  • Comparing rent only with principal-and-interest payment.
  • Counting principal as both cost and equity.
  • Assuming appreciation while ignoring sale costs.
  • Using a 30-year horizon for a likely three-year stay.

Questions this decision usually raises

Is buying always better if the payment is lower than rent?

No. Taxes, insurance, maintenance, closing and sale costs can change the result.

Should tax deductions be included?

Only with household-specific eligibility and current tax rules; show them separately.

What if I never sell?

Use a long horizon but still include major replacements, financing and the opportunity cost of equity.

Evidence behind the comparison

This page explains a calculation, not a personal recommendation. Contract rules and consumer protections vary by product and jurisdiction. Check the current agreement and official guidance before acting.