How much deposit do I need in Australia?

A deposit is only one part of the buying budget. The safer answer combines deposit, duty, and the repayments you can actually sustain.

Short answer

A bigger deposit improves flexibility and usually lowers risk, but the deposit alone is not enough. You also need cash for stamp duty and enough monthly breathing room to keep the loan comfortable after settlement.

Low deposit path

Useful when buying earlier matters, but it increases sensitivity to fees, insurance, and cashflow pressure.

Mid-range deposit path

Often a workable middle ground if it leaves enough cash for upfront costs and emergency buffer.

High deposit path

Reduces loan size and ongoing pressure, but draining too much cash can still leave settlement and maintenance risk.

Deposit is not the whole story

Check stamp duty before you trust your deposit plan

A deposit target can look comfortable until duty and registration costs are added. Use your state calculator before you decide that the deposit is enough.

A real purchase budget is not just deposit plus repayments. It also includes stamp duty, transfer registration, and mortgage registration before settlement.

NSW stamp duty

Transfer duty and upfront costs

VIC stamp duty

Land transfer duty by buyer type

QLD stamp duty

Home concession and investor rates

SA stamp duty

Transfer duty and registration fees

WA stamp duty

General duty and settlement costs

TAS stamp duty

Duty estimate for Tasmania purchases

ACT stamp duty

Owner-occupier and investor duty

NT stamp duty

Duty plus transfer and mortgage fees

First home buyer? Check the state-specific concession and exemption pages from the main stamp duty calculator once you choose your state.

Run first-home buyer plan

See how the same deposit behaves once state duty, cash buffer, and repayments are combined.

Plan buying costs

Combine deposit with other upfront costs before you narrow your purchase range.

Check borrowing power

Make sure the same deposit still leaves a safer monthly repayment path.

Validate repayments

Translate the property range into repayments before you trust the deposit strategy.

FAQs

Do I need a 20% deposit in Australia?

No. Many buyers purchase with less, but lower deposits can increase lender's mortgage insurance costs and reduce cash buffer.

Is the deposit the only cash I need?

No. You still need stamp duty, legal costs, transfer fees, mortgage registration, and a settlement buffer.

Should I wait until I have a bigger deposit?

Sometimes, but not always. The right answer depends on cash buffer, borrowing comfort, property goals, and whether buying earlier creates pressure elsewhere.