Home deposit calculator
Turn a purchase price and deposit percent into the cash needed, loan size and LVR.
What the result means
A deposit is the cash you put in at purchase. Lenders look at the leftover loan as a percentage of the property value (LVR).
How it is calculated
Deposit = price × %. Loan = price − deposit. LVR = loan / price
- Price: Purchase price used as the valuation in this simple model.
Percent is of the property price, not of the loan.
Assumptions
- Estimates only — not tax, legal, credit or financial advice. Check the official source or your contract before relying on a figure.
- Valuation equals purchase price.
- No LMI, grants or stamp duty.
Worked example
20% of $850,000
A common 80% LVR example.
- Deposit
- $170,000
- Loan
- $680,000
Many lenders treat 80% LVR as the usual line before LMI. Confirm with the lender.
Stamp duty and LMI sit outside this figure
Buying costs include stamp duty, inspections and often lenders mortgage insurance below 20% deposit. Stamp duty is state-specific and is not part of this figure. The stamp duty calculator covers New South Wales, Victoria and Queensland.
A 5% deposit on an $800,000 home is $40,000 of cash down and a $760,000 loan. A 20% deposit is $160,000 and a $640,000 loan. The 5% path usually adds LMI and a higher repayment for the whole term. The deposit and LVR guide walks through that trade-off.
Questions
Is 20% required?
No. Many loans are available at higher LVR with LMI. 20% is a common planning target, not a law.
Does this include stamp duty?
No. Duty, conveyancing and inspections are extra cash at settlement. A deposit that leaves nothing for those costs is not a deposit you can actually settle with.
Read the background
A guide explains the rules behind this calculation in full, without any inputs to fill in.
Related calculators
Sources
Moneysmart (ASIC)
Last reviewed 2026-08-19
Home · Last reviewed 19 August 2026
Estimates only. Not tax, legal or financial advice. Check official sources before relying on a figure.
Spotted a mistake? Contact us.
Printed from OzCalc (ozcalc.com). Last reviewed 19 August 2026. Estimates only — not tax, legal or financial advice.