Property development can trigger income tax, GST and capital gains tax (CGT) obligations that significantly impact your profitability. Understanding how your project is taxed from the outset helps you choose the right structure, improve cash flow and avoid costly mistakes.
Key Takeaways
- Tax treatment depends on whether you're investing, developing or undertaking a profit-making scheme.
- GST, income tax and CGT can all apply differently depending on your project.
- Choosing the right business structure before you begin can improve tax efficiency.
- Specialist tax advice can help reduce costly mistakes and improve cash flow.
Understanding property developments and income tax

Property development can be taxed in different ways depending on your intention, activities and the nature of the property. A project may be treated as a property development business, a profit-making scheme or the realisation of a capital asset. Each classification can affect how profits are taxed, whether deductions are available and whether capital gains tax concessions may apply.
Because the tax outcome depends on the facts of the project, it is important to consider your property development tax planning before buying land, signing agreements or beginning construction.
What are the differences between a property developer and an investor?
A property developer generally purchases, develops or improves land with the intention of selling it for a profit. The development may involve subdivision, construction, renovation or a series of property sales carried out as part of a business.
An investor usually acquires property to hold over the longer term and generate rental income or capital growth. Although an investor may eventually sell the property, the original intention is generally different from that of a developer.
Negative gearing treatment now differs for certain residential property investors depending on when the property was acquired and whether it is a new build. Losses from established residential properties acquired after 7:30 pm AEST on 12 May 2026 can only be offset against residential rental income or capital gains from residential property, rather than salary or other income. Unused losses can be carried forward and applied against residential property income in future years.
Properties acquired before the Budget night cut-off are grandfathered and retain the existing negative gearing treatment while they are held. Eligible new residential builds can also continue to access negative gearing, including the ability to offset eligible rental losses against other taxable income.
The distinction matters because a developer’s profit is commonly treated as ordinary income, while an investor may be taxed under the capital gains tax rules. The ATO may consider factors such as:
- your intention when the property was purchased
- the scale and complexity of the development
- whether similar transactions have been completed before
- the length of time the property was held
- the level of planning, financing and construction activity
- whether the project was conducted in a business-like manner
No single factor determines the outcome. The overall circumstances and commercial purpose of the transaction must be considered.
A profit-making scheme
A property transaction may be treated as a profit-making scheme even when you are not carrying on a property development business. This can happen where land is purchased, developed or sold as part of a commercial plan intended to generate a profit.
For example, you may purchase a residential property, subdivide the land, and sell the new lots without regularly undertaking property development. If the project was entered into with a profit-making intention, the gain may be taxed as ordinary income rather than solely under the CGT rules.
Costs directly related to the scheme may generally be taken into account when calculating the taxable profit. These may include eligible acquisition costs, construction expenses, professional fees, interest on loans and selling costs. The timing and deductibility of each expense will depend on how the project is classified and the relevant taxation rules.
Disposal of trading stock
Property held for sale by a property development business may be treated as trading stock. This can include land, completed dwellings or subdivided lots developed for resale.
When a stock is sold, the proceeds are generally included in assessable income. Development costs allocated to the property may then be recognised when calculating the taxable profit. Unsold property may also need to be valued as trading stock at the end of the financial year.
Accurate cost allocation is important, particularly when a parcel of land is divided into multiple lots or when a project includes several stages. Construction costs, holding expenses, and shared development costs must be recorded and attributed consistently to support financial reporting and tax calculations.
Realisation of a capital asset and CGT concessions
A property sale may instead represent the realisation of a capital asset where the property was acquired and held as an investment rather than for development and resale.
The CGT treatment of these assets is changing from 1 July 2027. The existing 50% CGT discount for individuals, trusts and partnerships will be replaced by cost base indexation, together with a 30% minimum tax on applicable net capital gains.
These reforms are not limited to property. They apply broadly to CGT assets held by individuals, trusts and partnerships.
Transitional rules apply to existing assets. Gains accruing before 1 July 2027 remain subject to the existing CGT treatment, while the new rules apply to gains accruing from that date.
Substantial development activity can also change how a property's profit is taxed. A property initially held as an investment may later become part of a profit-making undertaking or development business, potentially bringing some or all of the profit into the ordinary income tax regime.
Professional advice can help determine which rules apply and account for the changing CGT treatment when planning a property investment or development.
How to structure your property development
The structure used to acquire land and undertake a development can affect the tax rate, asset protection, financing, profit distributions and future property sales. It may also influence who can claim deductible expenses, how losses are treated and whether profits can be retained for another project.
There is no single structure that suits every Australian property developer. Effective tax planning should align the structure with your commercial goals, funding arrangements, risk profile and exit strategy before you purchase land or begin building. Changing structures later can create additional tax obligations, transfer costs and administrative issues.
Company structure
A company is a separate legal entity that can purchase land, enter architectural and construction agreements, borrow funds and sell completed properties in its own name. This separation can provide a level of asset protection, although directors may still have personal obligations and lenders often require guarantees.
Potential benefits of a company structure include:
- profits can generally be retained in the company to fund another development
- the company may provide a clear structure for bringing in shareholders or development partners
- eligible business expenses may be deductible when they are properly connected to earning assessable income
- accounting and reporting can be kept separate from the owners’ personal finances
- a company may support a repeatable strategy for developers completing multiple projects
However, the company tax rate does not automatically apply at the lowest available rate. Eligibility depends on the company's circumstances and the tax rules for the relevant income year.
For many property developments, profits are treated as ordinary income rather than capital gains because the land or completed property is held for resale. This means setting up a company solely to access a particular tax rate may not optimise your tax outcome once distributions, financing and long-term goals are considered.
A tax advisor can help model the tax payable at the company and shareholder levels, then tailor a structure that supports cash flow, risk management and future developments.
Trust structure
A trust holds and manages property for its beneficiaries, with the trustee responsible for operating the development and managing its tax affairs. The trustee may be an individual or a company, although a corporate trustee is commonly considered where asset protection and governance are priorities.
Trust structures can provide flexibility in distributing taxable income among eligible beneficiaries. Generally, beneficiaries are taxed on their share of the trust’s net income at the tax rates that apply to them. The trust must also have its own tax file number, lodge an annual tax return and register for GST when required.
A trust may be useful where the development strategy needs to:
- allow eligible income to be distributed among beneficiaries
- separate the development from other personal or business assets
- accommodate multiple investors through an appropriate trust arrangement
- support broader estate planning or long-term wealth goals
- align profit distributions with the trust deed and Australian tax law
The flexibility of a trust does not guarantee a lower tax bill. Trust distribution resolutions must be prepared correctly and on time, while undistributed income may be taxed at a high rate. Financing can also be more complex, and lenders may require guarantees from the trustee, directors or beneficiaries.
Property developers should also avoid assuming that using a trust makes development profits eligible for the CGT discount. The ATO has specifically identified trusts that incorrectly characterise property development business income as capital gains. Where a trust carries on a development business or a profit-making undertaking, the profit may remain taxable as ordinary income.
Where a genuine capital gain does arise, the applicable CGT treatment and concessions will depend on the current rules and transitional arrangements.
Tip: Structure the project before committing to the site
Before signing a purchase contract, prepare a project forecast covering the land price, construction costs, finance, expected sale proceeds, GST margin and income tax payable. Your accountant can then compare structures and implement a strategy designed to minimise avoidable costs, maximise legitimate claims and ensure the project remains commercially viable.
What are the GST implications for a property development?

GST can significantly impact the profitability and cash flow of a property development. Whether GST applies depends on the nature of your development, the type of property being sold and whether your activities constitute an enterprise for GST purposes.
Many Australian property developers focus on the GST payable at settlement, but effective tax planning starts much earlier. Registering at the right time, correctly claiming GST credits and understanding the GST treatment of different property sales can help minimise costly errors and support better cash flow throughout the project.
When to register for GST and claim GST credits
You must register for GST if you are carrying on an enterprise and your GST turnover meets the registration threshold. Many property developments exceed this threshold, making GST registration a key consideration before construction begins.
Registering at the appropriate time may allow you to claim GST credits on eligible business expenses, including:
- land acquisition costs (where GST applies)
- construction and build costs
- architectural and engineering services
- surveyors and consultants
- legal and accounting fees
- project management costs
- marketing and selling expenses
However, not every expense includes GST, and not every GST amount is claimable. The amount you can claim depends on the nature of the purchase and how it relates to your taxable development activities.
Delaying GST registration or incorrectly claiming GST credits can create compliance issues, affect cash flow and increase the amount of GST payable later in the project. Your accountant can help ensure registration aligns with your development strategy and that eligible credits are claimed correctly.
When GST applies to different property types
The GST treatment of a property sale depends on the type of property being sold rather than simply whether a profit is made.
Generally:
Correctly classifying the property is essential because it affects the GST payable, your ability to claim GST credits and the overall tax outcome. It can also influence whether the margin scheme may be available when selling the development.
Where a project includes mixed-use developments or multiple stages, different GST rules may apply to different parts of the development. Obtaining expert advice before contracts are prepared can help ensure the correct GST treatment is implemented.
GST withholding at settlement
For many sales of new residential property and potential residential land, purchasers are required to withhold an amount from the contract price and pay it directly to the Australian Taxation Office (ATO) at settlement.
Although this amount contributes towards the developer's GST liability, it is not an additional tax. Instead, it represents part of the GST that would otherwise be paid by the developer through their Business Activity Statement (BAS).
Developers also have notification obligations before settlement, advising purchasers whether GST withholding applies and the amount that must be withheld.
Because GST withholding directly affects settlement proceeds and project cash flow, it should be factored into feasibility studies, funding arrangements and tax planning well before the property is sold. Early planning helps ensure sufficient funds remain available to meet construction costs, loan repayments and other tax obligations.
How to reduce GST when selling a property development
The amount of GST payable on a property development is not always calculated in the same way. Depending on the transaction and whether the eligibility requirements are met, there may be legitimate strategies available to reduce the GST payable while remaining compliant with Australian tax law.
Two of the most common approaches are the margin scheme and the sale of a going concern. Both have strict rules and should be considered before contracts are signed, as they cannot always be applied retrospectively. Effective property development tax planning ensures these opportunities are assessed early and implemented correctly.
The margin scheme
The margin scheme allows eligible property developers to calculate GST on the "margin" of the sale rather than the full selling price. The margin is generally the difference between the property's selling price and its original acquisition value, although the calculation varies depending on how and when the property was acquired.
Using the margin scheme can significantly reduce the GST payable on eligible property sales, helping improve project profitability and cash flow.
To apply the margin scheme:
- both parties must agree to use the margin scheme in writing before settlement
- the property must satisfy the eligibility rules under GST legislation
- accurate purchase records and valuation information should be retained
- the GST calculation must be prepared using the correct method
The margin scheme is not available for every transaction. Previous ownership, how the property was acquired and earlier GST treatment can all affect eligibility. Applying the margin scheme incorrectly may result in additional GST, interest charges and penalties.
An experienced accountant or tax advisor can assess whether the margin scheme aligns with your development strategy and ensure it is implemented correctly before contracts are exchanged.
Sale of a going concern
In some circumstances, the sale of a property development may qualify as the sale of a going concern. Where all legislative requirements are satisfied, the transaction may be GST-free.
For the concession to apply, the seller must generally transfer everything necessary for the continued operation of the enterprise, and both the buyer and seller must be registered for GST. The parties must also agree in writing that the sale is of a going concern before settlement.
Whether a development qualifies depends on the specific facts of the transaction. For example, selling completed new residential properties will not automatically qualify simply because they form part of a larger development.
Because the requirements are highly technical, professional advice should be obtained before contracts are prepared. Structuring the transaction correctly from the outset can help avoid GST issues, reduce unexpected tax obligations and ensure the intended tax treatment is achieved.
Common GST mistakes in property developments
GST mistakes can significantly impact a property's profitability and create unexpected tax obligations. Many issues arise because GST decisions are made too late or the wrong treatment is applied from the outset.
Charging or claiming GST incorrectly
Incorrectly charging GST or claiming GST credits can lead to BAS adjustments, penalties and cash flow issues. Common mistakes include:
- charging GST when the sale is input taxed
- failing to charge GST on taxable property sales
- claiming GST credits on ineligible expenses
- overlooking GST on development-related costs
Working with an expert accountant helps ensure GST is calculated correctly and eligible GST credits are claimed.
Missing the margin scheme or sale of a going concern
The margin scheme and sale of a going concern can reduce the GST payable on eligible transactions, but both have strict eligibility requirements. Missing these opportunities or documenting them incorrectly can increase the overall tax cost of the development.
Reviewing contracts before they are signed helps ensure the correct GST strategy is implemented.
Registering unnecessarily or using the wrong GST method
Registering too early or too late, or using the wrong GST accounting method, can create unnecessary administration and affect cash flow throughout the project.
Before purchasing land or starting construction, ensure your GST registration, reporting method and tax planning align with your development strategy and expected tax obligations. An experienced tax advisor can help tailor the right approach for your project.
Accounting for property development

Accurate accounting supports better cash flow, tax planning and compliance throughout a property development. Keeping reliable records from day one makes it easier to track costs, calculate profits and meet your tax obligations.
Setting up your business and accounting systems
Set up your accounting system before purchasing land or starting construction. Record all income, expenses and project costs separately to improve reporting and support BAS and tax return preparation.
Your accountant can also help tailor your accounting processes to suit your development structure and long-term business goals.
Tracking development costs and trading stock
Maintain detailed records of all development costs, including land, construction, architectural services, interest on loans, professional fees and selling expenses.
Where property is treated as trading stock, accurate cost allocation helps ensure taxable profits are calculated correctly and that eligible deductions are claimed.
What if I make a loss on my development?
Not every property development generates a profit. How a loss is treated depends on whether the project is classified as a business, a profit-making scheme or a capital asset.
Because the tax treatment varies, speak with an expert accountant before lodging your tax return. Early advice can help ensure losses are reported correctly and support your future tax planning.
Get specialist property development tax advice
Property development tax planning is most effective when it starts before you purchase land, choose a structure or sign contracts. Early advice can help you understand the likely income tax, GST and CGT treatment, model project cash flow, and avoid preventable tax issues.
Liston Newton works with property developers to provide clear, practical advice across structuring, GST, accounting and tax compliance. Our team can help you align your tax strategy with the project’s commercial goals and long-term financial plans.



