The Margin Scheme: How GST Works on Property Development

Introduction

For property developers, GST can represent a significant cash flow and compliance burden. The margin scheme is a critical tool that allows you to pay GST on the profit margin of a property sale rather than the full sale price. This can substantially reduce the GST payable, especially when the property was acquired before 1 July 2000 or from a non-registered entity. This pillar article provides a definitive reference on how the margin scheme works, who can use it, how to calculate it, and the compliance requirements you must meet. Whether you are a sole trader, small business operator, or bookkeeper, understanding these rules is essential for accurate BAS preparation and avoiding costly ATO penalties.

What Is the Margin Scheme?

The margin scheme is an optional GST valuation method available for supplies of real property (land and buildings) under Division 75 of the A New Tax System (Goods and Services Tax) Act 1999. Instead of applying GST to the full sale price, you apply GST to the margin—the difference between the sale price and the property’s cost base (or the value at a specific date). The GST rate is 10% of the margin, not 10% of the sale price.

For example, if you sell a property for $550,000 and the margin is $100,000, GST payable is $10,000 (10% of $100,000) rather than $50,000 (10% of $550,000). This can be a substantial saving.

Expert tip: The margin scheme is not automatic. You must elect to apply it in writing, typically in the contract of sale, and you must hold the necessary documentation to support the margin calculation.

Eligibility Criteria for the Margin Scheme

Not all property sales qualify for the margin scheme. The ATO sets out specific conditions:

• You must be registered for GST (or required to be registered) at the time of supply.
• The property must be real property—land, buildings, or both.
• The property must have been acquired in one of the following ways:
  • Before 1 July 2000 (the start of GST).
  • From a non-registered entity (e.g., a private individual who was not registered for GST).
  • As a going concern (if the supplier did not claim GST credits on the supply).
  • From a registered entity, but the supply to you was not subject to GST (e.g., input-taxed supply).
• You must have elected to use the margin scheme in writing before the sale is completed.

If you acquired the property after 1 July 2000 from a GST-registered supplier and the supply was taxable, you generally cannot use the margin scheme. However, there are exceptions for subdivided land and certain other circumstances—always check with the ATO or a tax professional.

How to Calculate GST Under the Margin Scheme

The calculation depends on how you acquired the property. There are three main methods:

1. Property Acquired Before 1 July 2000

If you owned the property on 1 July 2000, the margin is the difference between the sale price and the value of the property on 1 July 2000 (as determined by a qualified valuer). This value is used as the cost base.

Formula: Margin = Sale Price – Valuation at 1 July 2000

2. Property Acquired from a Non-Registered Entity

If you bought the property from someone who was not registered for GST, the margin is the difference between the sale price and the original purchase price you paid.

Formula: Margin = Sale Price – Purchase Price

3. Property Acquired as a Going Concern or from a Registered Entity (with no GST credit)

In some cases, you may have acquired the property without being able to claim an input tax credit (e.g., because the supply was input-taxed). The margin is the difference between the sale price and the consideration you paid for the property.

For all methods, you can also include certain incidental costs (e.g., legal fees, stamp duty) in the cost base if they were incurred in acquiring the property. However, you cannot include costs that have already been claimed as GST credits.

Warning: If you use the margin scheme, you cannot claim input tax credits on the acquisition of the property. This is a key trade-off—you lose the GST credit but pay GST only on the margin.

Margin Scheme vs. Standard GST Method

Choosing between the margin scheme and the standard method (GST on full sale price) requires careful analysis. The standard method allows you to claim input tax credits on your purchases, but you must charge GST on the full sale price. The margin scheme reduces GST on the sale but forfeits input tax credits on the property acquisition.

Here’s a comparison:

For property developers, the margin scheme is often beneficial when the property was acquired before 2000 or from a non-registered seller, because the cost base is low relative to the current market value. However, if you have significant development costs that attract GST credits, the standard method might be more advantageous overall. Always model both scenarios.

Applying the Margin Scheme to Property Development

Property development involves more than just buying and selling land. The margin scheme applies to the supply of the developed property (e.g., new units, houses, or subdivided lots). Key considerations:

Subdivision and Construction

If you subdivide land and sell individual lots, the margin scheme can apply to each lot. The cost base is apportioned based on the area or value of each lot. For construction, the margin is calculated on the land component only—you cannot include construction costs in the margin calculation. However, you can claim GST credits on construction costs if you are using the standard method for the sale. If you use the margin scheme, you cannot claim GST credits on the land, but you can still claim credits on construction materials and services.

New Residential Premises

The margin scheme is commonly used for new residential premises (e.g., new homes, units) sold by developers. The ATO requires that the margin scheme election be made in the contract of sale. If you fail to do so, you must use the standard method.

Commercial Property

The margin scheme also applies to commercial property, but the rules are similar. You must ensure the property qualifies and that you have the necessary valuation or purchase evidence.

Expert tip: For subdivided land, get a professional valuation of the land at the time of acquisition or 1 July 2000, and apportion it across the lots. This avoids disputes with the ATO.

Record Keeping and Documentation

To use the margin scheme, you must maintain comprehensive records to substantiate your margin calculation. The ATO requires:

• A written election to use the margin scheme (usually in the contract of sale).
• Evidence of the property’s cost base: either a valuation report (for pre-2000 acquisitions) or the original purchase contract and settlement statement.
• Calculations showing how the margin was determined, including any apportionment for subdivisions.
• Copies of all relevant contracts, invoices, and payment records.

If you fail to keep adequate records, the ATO may disallow the margin scheme and reassess your GST liability using the standard method, plus penalties and interest.

Common Pitfalls and ATO Compliance

Property developers often make errors when applying the margin scheme. Here are the most frequent mistakes:

• Failing to elect in writing – The election must be made in the contract of sale or a separate written agreement before settlement.
• Using the wrong cost base – For pre-2000 properties, you must use the valuation at 1 July 2000, not the original purchase price.
• Claiming input tax credits on the land – If you use the margin scheme, you cannot claim GST credits on the acquisition of the property.
• Incorrect apportionment for subdivisions – Each lot must have a proportionate cost base.
• Not adjusting for changes in use – If you rent out the property before selling, you may need to adjust for input-taxed supplies.

To stay compliant, always consult the ATO’s GST and property guide (GST 600) and consider using a registered tax agent.

GST Calculator & Tools

At gstcalculatorau.com, we provide a suite of free GST calculators to help you estimate your GST liability under different methods. Our Margin Scheme Calculator allows you to input your sale price and cost base to instantly see the GST payable. Here’s how to use it:

1. Select the ‘Margin Scheme’ calculator from the GST Calculator Suite.
2. Enter the sale price (excluding GST).
3. Enter your cost base (valuation or purchase price).
4. Click ‘Calculate’ to see the margin and GST amount.

For example:

You can also use our standard GST calculator to compare the two methods. Our database of GST treatment for real-world transactions helps you understand how GST applies to specific property scenarios.

Common GST Mistakes to Avoid

Beyond the margin scheme, property developers often make these GST errors:

• Not registering for GST when turnover exceeds $75,000 (or $150,000 for non-profit organisations).
• Incorrectly treating residential rent as taxable – Residential rent is input-taxed, so no GST is charged, and you cannot claim credits on related expenses.
• Failing to issue tax invoices for taxable sales, including sales under the margin scheme.
• Mixing up margin scheme and going concern rules – A going concern supply may be GST-free, but the margin scheme is different.
• Not adjusting for adjustments – If the sale price changes after settlement, you must adjust your GST.

Prevent these mistakes by keeping accurate records, using our calculators, and seeking professional advice for complex transactions.

Conclusion

The margin scheme is a powerful tool for property developers to reduce GST on property sales, but it requires careful planning and documentation. By understanding the eligibility criteria, calculation methods, and compliance requirements, you can make informed decisions that benefit your cash flow and avoid ATO penalties. Always compare the margin scheme with the standard method, and use the resources at gstcalculatorau.com to model your scenarios. For specific situations, consult a registered tax agent or the ATO directly.