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What is the Victorian Windfall Gains Tax and Who is Affected?

Published 26 June 2026 · Last updated 26 June 2026

Quick Answer

The Victorian Windfall Gains Tax (WGT) applies to landowners who experience a significant increase in land value due to rezoning decisions. Effective 1 July 2023, the tax is levied on gains above $100,000 at rates up to 50%. Developers and investors should assess how zoning changes impact their properties and tax obligations.

The Victorian Windfall Gains Tax (WGT) is a significant development for property owners and developers in Victoria. Introduced to capture the uplift in land value due to government rezoning decisions, this tax can have substantial implications for your property investments.

Under the new legislation, which became effective on 1 July 2023, the Victorian WGT applies when a rezoning decision results in a substantial increase in the value of land. The tax is levied on the 'windfall gain'—the increase in land value over $100,000 due to the rezoning. The applicable tax rate can be as high as 50% for windfall gains exceeding $500,000. This means that if a rezoning decision significantly boosts the value of your property, you could face a considerable tax liability.

To see how this plays out, consider a developer who owns a parcel of land in Melbourne's outer suburbs. The land was initially zoned for agricultural use, but a recent rezoning has changed its designation to residential. This rezoning increases the land's value from $1 million to $1.8 million, creating a windfall gain of $800,000. Under the WGT, the first $100,000 of this gain is exempt. The remaining $700,000 is subject to tax, with the portion above $500,000 taxed at 50%. This results in a tax liability of $250,000.

In our experience reviewing thousands of properties across Australia, we often see landowners overlooking the potential tax implications of rezoning. Many assume that increased property value is entirely beneficial, not realising the tax consequences until it's too late. Additionally, some investors miss opportunities to plan their developments strategically, failing to account for WGT in their financial forecasts. Understanding the nuances of this tax can help you make more informed decisions about property investment and development.

The answer can differ depending on your situation. For example, land held by charities or for public benefit may be exempt from WGT. Properties rezoned for public land use are also not subject to the tax. Additionally, if your land holdings are structured through a trust, company, or partnership, the tax implications may vary. It's crucial to understand these nuances to ensure compliance and optimise tax outcomes.

Engaging a Chartered Quantity Surveyor and an accountant can provide clarity on how the Victorian WGT affects your specific property portfolio. These professionals can help you navigate the complexities of the legislation, ensuring that you leverage any available exemptions and accurately calculate your obligations.

  • Review your land portfolio for recent or potential rezoning changes.
  • Consult with a Chartered Quantity Surveyor to assess the impact of WGT on your properties.
  • Engage an accountant to explore tax planning strategies and exemptions.
  • Consider structuring property holdings to optimise tax outcomes.
  • Stay informed about legislative updates that may affect property values and tax liabilities.
  • Plan developments with WGT implications in mind to ensure financial feasibility.
  • Frequently Asked Questions

    What triggers the Windfall Gains Tax?

    The WGT is triggered by a government rezoning decision that significantly increases the value of a property. It applies to the uplift in land value over $100,000.

    Are there any exemptions to the WGT?

    Yes, exemptions apply to land used for charities, public benefit, and land rezoned for public use. Consult a professional to determine eligibility.

    How does the WGT affect property developers?

    Developers may face significant tax liabilities on rezoned land. It's essential to factor this tax into project planning and financial forecasts.

    Does the WGT apply to all Victorian properties?

    No, it only applies to properties experiencing a significant value increase due to rezoning. Properties with gains under $100,000 are exempt.

    How does the WGT affect my tax return?

    The WGT liability must be reported in your tax return. It's advisable to work with an accountant to ensure accurate reporting and compliance.

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    Written by Koste Team · Koste Chartered Quantity Surveyors · AIQS Member · RICS Member · TPB Registered · 1300 669 400 · info@koste.ai