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Rent vs Buy Cost Calculator

Use this rent vs buy calculator to compare entered annual renting costs with the cash costs of home ownership. Enter your own values, then select Calculate to see the result.

Reviewed Oct 15, 2026Formula shownRuns in your browser

Your inputs

Change any value. Use one currency consistently for all money fields.

currency
currency
currency
currency

Enter your numbers, then tap Calculate.

The currency selector changes the displayed symbol only. It does not convert exchange rates.

Your result

A transparent estimate based on the assumptions you enter.

Ownership minus renting
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Estimate only. Check the explanation and limitations below.
FormulaAnnual difference = (monthly mortgage × 12 + property tax + maintenance) − (monthly rent × 12).

What this result means

A positive number means the entered ownership cash outflow is higher than rent for that year; a negative number means it is lower.

How the Rent vs Buy Cost Calculator works

Positive results mean estimated ownership cash outflow is higher. This is not a full investment comparison; equity, appreciation and opportunity cost are excluded.

The calculator does not fetch live prices or rates. That is intentional: you provide the tariff, price, rate or cost that actually applies to your situation, which makes the assumptions visible and avoids presenting stale market data as current.

How to get a more useful estimate

  • Treat this as a cash-flow screen, not a complete investment decision.
  • Run several scenarios for maintenance and property taxes rather than using one optimistic value.
  • Consider equity buildup, transaction costs, appreciation, rent increases, and opportunity cost outside this simple comparison.

Scenario check

Use this as a simplified annual cash-flow comparison only. Mortgage principal is cash leaving the household but may increase home equity, which is why a positive ownership-minus-rent result does not prove renting is financially better. For a long-term decision, separately consider transaction costs, appreciation, rent changes, investment returns and how long you expect to stay.

Important limitations

  • Mortgage principal is treated as cash outflow even though it builds equity.
  • Home appreciation, rent inflation, selling costs, and investment returns are not modeled.
  • Insurance and association fees should be added to maintenance or assessed separately.
Planning note: SmartCostTools provides educational estimates, not personalized financial, tax, legal, engineering, energy, lending or professional advice. Verify major decisions with current local information and qualified professionals where appropriate.

Frequently asked questions

Does a positive result mean renting is always better?

No. It only means the ownership cash outflow entered is higher for that year. Long-term wealth effects are not included.

Why is mortgage principal counted as a cost?

This tool compares cash leaving your budget. Some mortgage payment builds equity, which is why the result is not a full economic comparison.

Should I include a down payment?

Not in this simple annual calculation. A down payment is an important opportunity-cost and liquidity factor that should be considered separately.