Australian GST at Settlement: Must Buyers Withhold in 2026?

The Australian Taxation Office says most purchasers of taxable new residential premises or potential residential land must pay a withheld amount directly to it at settlement. This guide answers one question: when must Australian property buyers withhold goods and services tax at settlement in 2026? The obligation is federal and can apply across New South Wales, Victoria, Queensland, South Australia, Western Australia, Tasmania, the Australian Capital Territory, and the Northern Territory. State and territory conveyancing law still controls the local contract and settlement process.

Australian Taxation Office guidance and the current federal legislation were checked on 6 August 2026. The classify → notify → calculate → lodge → pay → reconcile sequence below is Proppi’s editorial framework for separating the property question from the settlement evidence.

When Must Australian Property Buyers Withhold GST at Settlement?

Start with the property and supply, not the buyer’s intended use after settlement.

Which Australian Property Transactions Are Usually Covered?

The Australian Taxation Office’s purchaser guide says withholding may apply to a purchase or long-term lease of:

• new residential premises
• potential residential land

New residential premises include residential property that has not previously been sold as residential premises, subject to the detailed federal rules. Off-the-plan apartments and new house and land packages are common examples.

Potential residential land is land that is permissible to use for residential purposes but does not contain residential premises. A vacant residential lot can fit that description. The actual tax result still depends on whether the supplier is making a taxable supply and whether an exclusion applies.

The current A New Tax System (Goods and Services Tax) Act 1999 defines taxable supplies, residential premises, new residential premises, and potential residential land. The purchaser-withholding machinery sits in Subdivision 14-E of Schedule 1 to the Taxation Administration Act 1953.

Which Purchases Are Excluded From Withholding?

The Australian Taxation Office’s GST at settlement guidance lists exclusions including:

• existing residential premises that are no longer new
• new residential premises created through substantial renovations
• commercial residential premises such as hotels, motels, and caravan parks
• commercial property
• potential residential land bought by a GST-registered business for a creditable purpose
• potential residential land containing a building used for a commercial purpose

An exclusion from the purchaser-withholding process does not always answer the supplier’s wider GST position. For example, the Australian Taxation Office says new residential premises created through substantial renovations are excluded from settlement withholding, while the supplier may still need advice about whether the sale itself is taxable.

Existing residential premises are usually input taxed rather than subject to GST on sale. A private sale is also not made taxable merely because the home is physically new; the taxable-supply tests include whether the sale is in the course or furtherance of an enterprise and whether the supplier is registered or required to be registered.

Keep the facts and the tax conclusion separate:

1. physical property description and occupancy history
2. development, renovation, and prior-sale history
3. zoning and permitted residential use for vacant land
4. supplier identity, enterprise, and GST status
5. purchaser GST status and creditable-purpose evidence where relevant
6. dated tax or legal advice supporting the classification

What Must the Supplier Notice Say?

Section 14-255 of Schedule 1 to the Taxation Administration Act 1953 requires a supplier of residential premises or potential residential land to give the purchaser written notice stating whether the purchaser must make a GST withholding payment.

The Australian Taxation Office says the notice can sit in the contract or in a separate document. Where withholding applies, it should state:

• the name and Australian Business Number of each entity liable for the GST
• any GST branch number
• the amount the purchaser must withhold, rounded down to the nearest dollar
• when the amount must be paid
• the GST-inclusive contract price
• the GST-inclusive market value of any non-monetary consideration

Match the notice to the contract parties and final settlement adjustments. Do not assume the word GST in a price clause is the statutory supplier notice.

The Australian Taxation Office says reasonable reliance on a supplier notice can protect a purchaser from the failure-to-pay penalty. That protection is not unlimited: it says reliance may be unreasonable where the purchaser knows a GST-registered supplier is selling new residential premises that have not previously been sold.

How Much Does the Purchaser Withhold?

The Australian Taxation Office says the amount is generally:

The supplier notice provides the amount the purchaser pays. The purchaser should not replace it with an informal spreadsheet unless the notice is corrected by the supplier.

The 7% margin-scheme withholding is not the supplier’s final GST calculation. Under Division 75 of the GST Act, the supplier’s GST can depend on the statutory margin. The Australian Taxation Office’s GST at settlement guidance shows that the amount withheld can exceed the supplier’s final margin-scheme liability, with the difference reconciled through the supplier’s Australian Taxation Office accounts and business activity statement.

Keep any written margin-scheme agreement with the contract. The Australian Taxation Office says the parties must agree in writing to use the margin scheme before settlement, and a purchaser buying under the margin scheme cannot claim a GST credit for GST included in the purchase price.

Which Forms Does the Australian Purchaser Lodge?

The Australian Taxation Office’s property settlement form instructions set out two forms.

Form one: GST property settlement withholding notification

• can be lodged after the contract is entered into and the supplier notice is received
• must be lodged by the payment due date, usually settlement or the first instalment
• produces a lodgment reference number and payment reference number

Form two: GST property settlement date confirmation

• confirms the actual settlement date
• for a standard land contract, can be lodged within two business days before settlement, on settlement day, or on the next business day
• uses the references issued after Form one

The withholding payment for a standard land contract is due on settlement day. Form two’s limited post-settlement lodgment window does not postpone the payment deadline.

A purchaser can authorise a solicitor or conveyancer to lodge the forms by giving a signed declaration. The Australian Taxation Office cautions that a conveyancer cannot provide GST advice unless appropriately registered. Keep the authorisation and advice source distinct.

What Should Be Kept in the Settlement File?

Keep one traceable record for each handoff:

1. signed contract and amendments
2. property classification and supporting evidence
3. supplier notification for each supplier
4. margin-scheme agreement or full-taxable treatment record
5. Form one confirmation, lodgment reference number, and payment reference number
6. signed authority for a representative, if used
7. Form two confirmation
8. Australian Taxation Office payment receipt
9. final settlement statement showing the deduction from supplier proceeds
10. supplier credit or purchaser refund correspondence if the amount is corrected

The Australian Taxation Office says the Form one reference numbers are needed for Form two and payment. It also says parties should review Form one before settlement and amend or cancel it if the transaction details change or the contract does not settle.

How Is GST Withholding Different From Capital Gains Withholding?

GST at settlement and foreign resident capital gains withholding are separate Australia-wide federal systems.

A transaction can engage both systems. An Australian Taxation Office clearance certificate for foreign resident capital gains withholding does not cancel GST settlement withholding. Read the Australian property capital gains withholding guide for the separate certificate, variation, and payment evidence.

Facts, Interpretation, and Practical Action

Keep the property and contract evidence unchanged. Record the tax conclusion as dated advice or working. Record each settlement action with its Australian Taxation Office reference and receipt.

A Six-Gate Australian Settlement Check

The original synthesis in this guide is a six-gate check:

1. Classify the property and supply.
2. Test the exclusions without assuming they settle the supplier’s wider GST position.
3. Match the supplier notice to every supplier and the final contract.
4. Verify the full-rate, margin-scheme, or associate amount.
5. Lodge and pay using the correct dates and reference numbers.
6. Reconcile the payment, settlement statement, supplier credit, and any later correction.

This is a settlement record framework, not a substitute for federal GST advice. It complements the Australia rental tax hub, the Australian home-to-rental records guide, and the Australian Taxation Office property data-matching guide.

Source Note

This article covers Australia-wide federal goods and services tax withholding at property settlement. The Australian Taxation Office purchaser guide was last updated on 13 June 2025, its online form steps on 12 June 2025, and its residential-property GST guidance on 14 May 2025. Those pages and the current federal Acts were checked on 6 August 2026. State and territory contract, title, conveyancing, and professional-licensing rules remain separate.

Keep Reading

• Australian Property Foreign Resident Capital Gains Withholding
• Australian Home-to-Rental Records
• Australian Taxation Office Property Data-Matching
• Capital Gains Tax on Australian Investment Property
• Australia Rental Tax Changes and Records

The Short Version

1. Most purchasers of taxable new residential premises or potential residential land in Australia must withhold GST at settlement.
2. Get the supplier’s written notice and match it to the property, contract, and suppliers.
3. The amount is generally one-eleventh of the price, 7% under the margin scheme, or the special associate-market-value amount.
4. Lodge Form one and retain its reference numbers, then lodge Form two and pay by the required time.
5. Keep the supplier notice, forms, payment, and settlement statement as one traceable record.
6. Test foreign resident capital gains withholding separately because both federal systems can apply.

Last reviewed: 6 August 2026. Goods and services tax treatment can turn on property history, enterprise, registration, contract, and margin-scheme facts. Confirm the transaction with the Australian Taxation Office, an Australian registered tax adviser, and the relevant conveyancer or solicitor before settlement.