Western Australia property tool
WA stamp duty calculator for property
Estimate the transfer duty — commonly called stamp duty — on a Western Australian property transaction. Enter the agreement date and dutiable value, then select the rate assumptions that may apply.
This is a general estimate, not a RevenueWA assessment or legal or financial advice. Special transactions, exemptions and concessions require individual checking.Your estimate
Enter the agreement date and dutiable value, choose your rate assumptions, then select Calculate estimate.
What does this calculator estimate?
Transfer duty was formerly commonly called stamp duty. It may apply to transfers of Western Australian real estate and certain other dutiable property. This estimate uses the dutiable value you enter and the rate assumption you select. RevenueWA issues or confirms the actual assessment.
How WA transfer duty is calculated
The general rate is progressive: the dutiable value falls into a bracket, and duty is a fixed base for that bracket plus a marginal amount for each $100 (or part of $100) above the bracket floor. The calculator shows which rule applied to your estimate. You can see the full official figures in the RevenueWA transfer duty rate table (opens in a new tab).
First home buyers
Eligibility for the first home owner rate is decided by RevenueWA, not by this calculator. The agreement date controls which rate period applies, and thresholds have changed over time. A 2026 change to the first home owner thresholds has been announced but, at the date shown below, was not yet implemented — so for agreements on or after 7 May 2026 the calculator shows a general-rate figure and explains the pending reassessment and refund position rather than a definitive first-home amount. Approval, assessment, reassessment or refund procedures may affect what is actually payable at settlement.
Foreign buyers duty
Where foreign buyers duty applies, an additional 7% of the dutiable value may be payable. This calculator only includes it if you select that it applies, and treats the result as an estimate. Foreign status, the transaction type and any exemption must be checked.
What the calculator does not cover
- Off-the-plan concessions and rebates
- Exemptions and nominal-duty transactions
- Family, relationship-breakdown and deceased-estate transfers
- Related-party or non-arm's-length valuations, and aggregation of transactions
- Trusts, landholder duty, farming and business-asset apportionment
- Vehicle licence duty (use the Transport WA calculator)
- Whether you are legally eligible for any rate, concession, exemption or surcharge
When legal or settlement help may be useful
Many ordinary purchases proceed smoothly, and using this calculator does not create a solicitor–client relationship. Legal or settlement help can still be valuable for: contract or special-condition review before signing; ownership through a company or trust; family transfers or gifts; deceased-owner, survivorship or relationship-breakdown issues; foreign-buyer questions; caveats, title restrictions or unusual settlement conditions; and coordinating duty, title and settlement steps.
FREQUENTLY ASKED
WA stamp duty calculator FAQ
Is stamp duty the same as transfer duty in WA?+
Largely yes. Transfer duty is the current legal name for what most people still call stamp duty on property in Western Australia. This tool estimates transfer duty on a property transaction.
Is this the official RevenueWA calculator?+
No. This is a general estimate to help you plan. RevenueWA issues or confirms the actual assessment — use the official RevenueWA calculator for a formal figure.
Should I enter the purchase price or the property value?+
Enter the dutiable value. That is generally the purchase price (consideration), but in some cases it is the unencumbered market value of the property instead. RevenueWA determines the dutiable value.
Does the agreement date or the settlement date determine the rate?+
The agreement date — the date the contract was entered into — determines which rate period applies. That is usually not the settlement date.
Can first-home buyers pay no transfer duty?+
Eligible first-home buyers can pay no duty up to a threshold, then a reduced rate up to a cap. Eligibility is decided by RevenueWA, not by this calculator, and thresholds have changed over time.
Does the result include foreign buyers duty?+
Only if you select that foreign buyers duty applies. It is then estimated at an additional 7% of the dutiable value. Whether it applies, and any exemption, must be checked.
Does the calculator cover off-the-plan concessions?+
No. Off-the-plan concessions, exemptions, and many special transactions are out of scope. For those, check with RevenueWA and consider legal advice.
Can I use this calculator for a car or vehicle?+
No. This estimates property transfer duty only. Vehicle licence duty is different — use the Transport WA vehicle duty calculator instead.
Why might RevenueWA's assessment differ?+
RevenueWA assesses the actual dutiable value, eligibility for concessions or exemptions, and any special rules for your transaction. Those can change the amount payable compared with a general estimate.
Sources and review information
Rates checked: 22 July 2026.
Legal content reviewed: Reviewed by Vinh Nguyen, Principal Lawyer — 22 July 2026.
Official sources: RevenueWA rate table and official RevenueWA calculator.
WA rates and concessions can change. This tool is maintained by updating a single rules module; the rate periods carry their own verification dates and sources.