How is stamp duty calculated in WA 2026?

Answer

The calculation of stamp duty in Western Australia for 2026 is currently unknown, as specific rates can change with future legislation. However, it is presently calculated on the dutiable value of the property using a progressive scale.

Western Australian Department of Finance
Last Updated:May 5, 2026

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How it works in practice

Understanding WA Stamp Duty

Stamp duty, officially known as transfer duty in Western Australia, is a tax levied on transactions involving the transfer of property. While specific rates for 2026 cannot be confirmed as legislative changes may occur, the current system involves a progressive calculation based on the dutiable value of the property. This means that as the property's value increases, a higher percentage rate of duty is applied to portions of that value.

Current Calculation Method

Presently, WA's transfer duty is determined by a tiered scale. For instance, lower value properties attract a smaller percentage, while higher value properties are subject to increasing rates at different thresholds. The dutiable value is typically the greater of the property's purchase price or its market value. Various factors, including whether you are a first home buyer or purchasing specific types of property (e.g., primary production land), can influence the final amount payable through potential concessions or exemptions.

Important exceptions

Specific stamp duty rates and thresholds are subject to change by the Western Australian Government, particularly for future years like 2026. Currently, there are varying rates for different types of property and transactions, such as residential, commercial, or primary production land. Additionally, first-home buyer concessions or exemptions, which significantly reduce or eliminate duty, could be altered or new ones introduced.

What you should do now

  1. Monitor the official Western Australian Department of Finance website for any legislative changes regarding transfer duty rates and rules for 2026.

  2. Utilize the current WA stamp duty calculator provided by the Department of Finance as an indicative guide for potential future costs.

  3. Seek professional advice from a conveyancer, solicitor, or financial advisor closer to 2026 for an accurate calculation based on the then-current laws.

  4. Investigate eligibility for first-home buyer concessions, as these can significantly reduce the dutiable amount.

  5. Ensure you understand that 'dutiable value' may not always align with the sale price, as market value assessments can also apply.

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