How to use this calculator
- Enter home purchase price, chosen down-payment percentage, deposit savings already available.
- Choose a display currency, then select Calculate. Results also update after a brief pause while you edit.
- Read the result with the assumptions below. Export details or save a second scenario to compare your choices.
Formula and method
Deposit = purchase price × chosen percentage; extra saving needed = max(0, deposit − savings).
Assumptions and limitations
Closing costs, transaction tax, insurance and financed fees are not included.
Worked example
With home purchase price = 200000, chosen down-payment percentage = 20, deposit savings already available = 25000, required deposit is approximately 40000.
What the result means
The percentage is your scenario and does not imply lender approval or a statutory minimum.
Common questions
How should I interpret required deposit?
The percentage is your scenario and does not imply lender approval or a statutory minimum.
What should I check before using this result?
Closing costs, transaction tax, insurance and financed fees are not included.
Methodology and transparency
Calculation specification reviewed on 2026-10-14. Mathematical implementation is tested against independent reference fixtures. This does not imply review by a licensed financial professional. Read the testing and precision policy.