Your Home Deposit Is Only One Part of the Cash Target
Many Australian buyers use a 20% deposit as a planning benchmark because, when the lender accepts the same property value, it typically results in an 80% loan‑to‑value ratio (LVR). However, there is no single deposit percentage that applies to every borrower, property or lender.
Smaller deposits may be accepted, although they can influence product eligibility, interest‑rate pricing and lenders mortgage insurance (LMI). Some eligible buyers may also access a government guarantee or another supported pathway that reduces the deposit required.
The total cash needed for settlement is usually higher than the deposit alone. Transfer duty, legal work, inspections, lender fees, registration charges, moving expenses and an emergency reserve often need to be funded separately.
Moneysmart suggests using 20% of the purchase price plus buying costs as a useful savings goal, while noting that some buyers may be able to purchase with less. See its Australian home‑buying guidance .
How the Deposit and Property Value Produce an LVR
The loan‑to‑value ratio (LVR) compares the loan amount with the property value accepted by the lender:
LVR = loan amount ÷ lender‑accepted property value × 100
For example, an $800,000 purchase with a $160,000 deposit leaves a base loan of $640,000:
$640,000 ÷ $800,000 × 100 = 80% LVR
This assumes the lender accepts an $800,000 valuation and that no LMI or fees are added to the loan. If the accepted value is lower or the final loan is higher, the lender’s calculated LVR will increase.
What the LMI Indicator Means
Lenders mortgage insurance protects the lender against certain losses if the borrower cannot repay the home loan. It does not provide equivalent protection to the borrower.
LMI is commonly associated with borrowing more than 80% of the accepted property value, but 80% is not a universal rule. Requirements and exemptions depend on the lender, insurer, property type, borrower circumstances and any applicable government guarantee.
This calculator therefore provides an indicator rather than an estimated premium. If LMI applies and is added to the mortgage, the final loan balance and effective LVR may be higher than the base‑loan figures shown.
Transfer Duty and State Concessions
Transfer duty—commonly called stamp duty—is governed by each state or territory. Rates, thresholds, exemptions and first‑home concessions vary by location, property value and buyer circumstances.
Always enter a current estimate from the relevant revenue authority rather than relying on outdated examples or figures from another state.
First Home Super Saver Scheme
The FHSS scheme may allow eligible buyers to request the release of qualifying voluntary super contributions together with associated earnings. The total super balance is not available for a home purchase.
Eligibility, contribution type, tax treatment, release timing and ATO procedures affect the amount received. Enter only a cautious estimate based on your current determination.
Australian Government Deposit Support
The Australian Government 5% Deposit Scheme may help eligible buyers purchase with a smaller deposit without paying LMI. Separate arrangements may apply to eligible single parents or guardians.
The government guarantee is provided to a participating lender. It is not cash paid to the buyer and should not be entered as part of the deposit.
How This Home Deposit Calculator Builds the Result
Select a 5%, 10%, 20% or custom deposit. The calculator deducts that amount from the purchase price to estimate a base loan. It then divides the base loan by the purchase price to display an indicative LVR.
The cash target adds the deposit, entered buying costs and the savings you want to retain. Available savings, expected FHSS funds, eligible gifts and other entered funds are then deducted to show an estimated shortage or excess.
When there is a shortage and a monthly savings amount is entered, the calculator estimates the number of months required to close the gap. This simple timeline does not forecast interest, inflation, property‑price changes or future variations in purchase costs.
After selecting a deposit scenario, use the Australian mortgage calculator to explore possible repayment and interest outcomes for the resulting loan.
Using FHSS Funds Carefully in the Estimate
The ATO states that FHSS contribution limits are $15,000 per financial year and $50,000 across all years. These limits apply to eligible contributions counted under the scheme—not a guarantee that the full amount will be released.
The releasable calculation may include 100% of eligible non‑concessional contributions, 85% of eligible concessional contributions and associated earnings. Tax withholding, debts owed to government agencies and other conditions may affect the amount or timing.
Read the current ATO FHSS guidance before entering an amount or arranging a purchase.
Before Treating the Target as Settlement‑Ready
- Confirm transfer duty and concessions with the relevant authority.
- Ask the lender which property value it will use for LVR.
- Obtain an actual LMI figure if insurance may apply.
- Check whether gifts and grants satisfy lender conditions.
- Confirm FHSS eligibility, determination and release timing with the ATO.
- Allow for contract deposits payable before settlement.
- Keep funds for repairs and ownership costs after purchase.
Australian Home Deposit Questions
Must I save a 20% deposit before applying for a home loan?
No. Some lenders accept smaller deposits, and eligible buyers may have access to a government guarantee or another supported arrangement. A 20% deposit remains a useful benchmark because it often avoids LMI, subject to lender rules and valuation.
Does the calculator work out transfer duty automatically?
No. It uses the amount you enter. Transfer‑duty rates, thresholds and concessions differ between states and territories and can change over time.
Does a 5% deposit always produce a 95% LVR?
Only when the base loan is 95% of the lender‑accepted value and no other costs are included in the loan. A lower valuation, financed LMI or additional borrowing can produce a different LVR.
Will I definitely pay LMI when the LVR exceeds 80%?
Not necessarily. LMI is common above 80%, but exemptions, lender policies and government guarantees can change the outcome. Obtain confirmation from the proposed lender.
Does the calculator estimate the price of LMI?
No. It only indicates that LMI may need investigation. Premiums depend on the lender or insurer, loan amount, LVR, borrower circumstances and property.
Can I include FHSS money in my available funds?
You can enter a cautious estimate if you reasonably expect an FHSS release to be available. Check the ATO determination, release requirements, tax treatment and timing before relying on it.
Should a government guarantee be entered as deposit cash?
No. A government guarantee supports part of an eligible loan through a participating lender; it is not money contributed to the buyer’s settlement funds.
Why include savings that I intend to keep?
Retaining savings provides a buffer for repairs, moving expenses and unexpected costs after purchase. The amount is a personal planning choice rather than a universal requirement.
Does reaching the displayed target guarantee approval?
No. The lender must still assess income, expenses, debts, credit history, the property, valuation, source of funds and product eligibility.