Estimate Australian stamp duty and upfront costs.

Model transfer duty, government fees, surcharge duty, and concession outcomes with source-backed assumptions.

8states / territories
Officialduty rules
Fees+ concessions

Duty calculator

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Start with the contract date, state, and dutiable value.

About this estimate

PropGain shows source references, warnings, and review dates beside the result where those source-backed details are available. Estimates are for scenario modelling only and are not financial, tax, legal, or conveyancing advice. Always confirm your position with the relevant revenue office or a qualified professional.