Checklist Before Signing in Australia
Last updated: 2026-02-26
Australia's federal system divides legislative power between the Commonwealth and six states and two territories, each with its own laws governing contracts, property, and document execution. While the Commonwealth has enacted uniform legislation in some areas, significant differences remain between jurisdictions for witnessing requirements, stamp duty, and property transactions. This checklist addresses the specific requirements you must satisfy when signing legal documents under Australian law.
Confirm Witnessing Requirements by State
Unlike many countries with uniform witnessing rules, Australia's requirements vary by jurisdiction and document type. For deeds:
- In New South Wales, an individual executing a deed must have their signature witnessed by at least one person who is not a party to the deed, under the Conveyancing Act 1919 Section 38
- In Victoria, the Property Law Act 1958 Section 73 requires a deed to be signed, sealed, and delivered, with witnessing by one person
- In Queensland, the Property Law Act 1974 Section 45 requires deeds to be signed and attested by a witness
For statutory declarations and affidavits, each state prescribes approved categories of witnesses. In NSW, the Oaths Act 1900 lists authorized witnesses including justices of the peace, legal practitioners, and pharmacists. Victoria and other states maintain their own lists with some overlap. Always check the specific state legislation to ensure the witness holds an approved qualification.
Assess Electronic Signature Validity
The Electronic Transactions Act 1999 (Commonwealth) provides the foundational framework, supplemented by equivalent state and territory legislation. Electronic signatures are generally accepted for contracts and commercial documents. However, exclusions apply, and these differ between jurisdictions:
- Wills, codicils, and testamentary instruments are excluded across all jurisdictions
- Powers of attorney are excluded in most states
- Real property instruments required for lodgment with land registries are generally excluded
- Statutory declarations and affidavits have had temporary electronic execution provisions that may have expired or been made permanent depending on the state (check current status, as COVID-era provisions have been inconsistently extended)
The Commonwealth expanded electronic execution for company documents under the Corporations Act through permanent amendments following the Treasury Laws Amendment (2021 Measures No. 1) Act 2021, allowing companies to execute documents electronically under Section 127.
Verify Company Execution Under the Corporations Act
For documents executed by Australian companies, the Corporations Act 2001 Section 127 provides a statutory assumption of validity when:
- Two directors sign the document, or
- One director and one company secretary sign, or
- For a proprietary company with a sole director who is also the sole secretary, that person signs alone
Documents executed under Section 127 do not require a witness or the company seal. However, if the company chooses to use its common seal, two directors (or a director and secretary) must witness its application. Counterparties can rely on the assumptions in Section 129 that a document executed under Section 127 has been properly authorized.
Check Australian Consumer Law Guarantees
The Australian Consumer Law (Schedule 2 of the Competition and Consumer Act 2010) imposes consumer guarantees that cannot be excluded by contract. Before signing service agreements, supply contracts, or terms and conditions, be aware that:
- Consumer guarantees apply automatically to goods and services supplied to consumers (transactions under $100,000, or any amount for goods/services of a kind ordinarily acquired for personal, domestic, or household use)
- Clauses purporting to exclude, restrict, or modify consumer guarantees are void
- Since the Treasury Laws Amendment (More Competition, Better Prices) Act 2022, unfair contract terms in standard form consumer and small business contracts are not merely voidable but void and attract civil penalties of up to the greater of $50 million, three times the benefit obtained, or 30 percent of adjusted turnover
Review any limitation of liability or exclusion clauses in your document to ensure they do not purport to override non-excludable statutory guarantees.
Register Security Interests on the PPSR
The Personal Property Securities Act 2009 (Commonwealth) established a single national register for security interests in personal property, replacing over 70 previous Commonwealth, state, and territory registers. If the document creates a security interest (including retention of title clauses, consignment arrangements, leases for more than two years, or commercial bailments):
- Register the interest on the Personal Property Securities Register (PPSR) to perfect it
- Registration must occur within specific timeframes (within 20 business days of the security agreement for purchase money security interests to obtain super-priority)
- Describe the collateral correctly using serial number registration for motor vehicles, watercraft, and aircraft, and other property descriptions for non-serial-numbered goods
- Renew registrations before they lapse (registration periods range from 7 years to indefinite)
An unregistered security interest will vest in the grantor upon insolvency, leaving the secured party as an unsecured creditor.
Verify ABN and Withholding Obligations
Before signing supply or service agreements, check the supplier's Australian Business Number on the Australian Business Register. If a supplier does not quote a valid ABN:
- The payer must withhold 47 percent (the top marginal tax rate plus Medicare levy) from each payment under Section 12-190 of Schedule 1 of the Taxation Administration Act 1953
- This withholding obligation applies regardless of the size of the payment
Also confirm whether the supply is subject to GST (10 percent flat rate). The document should clearly state whether quoted amounts are GST-inclusive or GST-exclusive and require the supplier to issue tax invoices.
Calculate State-Based Stamp Duty
Stamp duty remains a state-imposed tax, though its application has narrowed over time. Currently:
- All states and territories impose stamp duty on transfers of real property (called transfer duty or landholder duty depending on jurisdiction)
- Motor vehicle transfer duty applies in most jurisdictions
- NSW and Victoria impose duty on certain insurance products
- Stamp duty on general commercial transactions (share transfers, business asset sales) has been largely abolished in most states but remains for dutiable property and landholder acquisitions
Calculate the applicable duty before settlement. In many states, the purchaser bears the stamp duty obligation, and duty must be paid before the transfer document can be lodged for registration. Late payment attracts interest and penalties.
Understand Cooling-Off Periods for Property
Residential real estate contracts in most states include statutory cooling-off periods:
- NSW: 5 business days under the Conveyancing Act 1919 Section 66S (buyer forfeits 0.25 percent of purchase price if they withdraw)
- Victoria: 3 business days under the Sale of Land Act 1962 Section 31 (buyer forfeits $100 or 0.2 percent of purchase price)
- Queensland: 5 business days under the Property Law Act 1974 Section 366 (buyer forfeits 0.25 percent)
- South Australia: 2 clear business days for residential properties
Cooling-off periods can be waived if the buyer obtains a solicitor's or conveyancer's certificate, or if the property is sold at auction. The document should clearly state whether a cooling-off period applies.
Obtain FIRB Approval Where Required
The Foreign Acquisitions and Takeovers Act 1975 requires foreign persons (including temporary visa holders and foreign-owned companies) to obtain approval from the Foreign Investment Review Board before acquiring interests in Australian land or businesses above certain thresholds. Residential real estate purchases by foreign persons generally require FIRB approval regardless of value. Proceeding without approval is a criminal offense carrying penalties including divestiture orders, civil penalties, and imprisonment.
Consider Trust Structures
Trust structures are more prevalent in Australian commerce than in many other jurisdictions. When a trustee is a party to the document:
- Verify the trust deed to confirm the trustee has power to enter the specific type of transaction
- Check whether the trust deed limits the trustee's right to be indemnified from trust assets
- Include appropriate representations that the trustee is acting in its capacity as trustee and has authority under the trust deed
- Consider whether the counterparty should also have recourse to the trustee in its personal capacity if trust assets are insufficient