Notice of Practical Completion (Australia)
Construction / Project Completion Notice — Security of Payment Acts
Date of Notice: [Notice Date]
TO (PRINCIPAL / OWNER):
[Principal Name] (ABN [Principal ABN])
[Principal Address], [Principal Suburb], [Principal State] [Principal Postcode]
FROM (CONTRACTOR):
[Contractor Name] (ABN [Contractor ABN])
Licence: [Contractor Licence]
[Contractor Address], [Contractor Suburb], [Contractor State] [Contractor Postcode]
Dear [Principal Name],
[Contractor Name] ("Contractor") hereby gives notice to [Principal Name] ("Principal") that Practical Completion of the Works described below has been achieved in accordance with the construction contract described in this Notice ("Contract").
This Notice is given pursuant to the Contract and, where applicable, the building and construction security of payment legislation applying in [Governing State], Australia.
1. CONTRACT DETAILS
1.1 Contract name: [Contract Name]
1.2 Contract date: [Contract Date]
1.3 Contract reference: [Contract Ref]
1.4 Site address: [Site Address]
2. DESCRIPTION OF WORKS
2.1 The works the subject of this Notice are as follows:
[Works Description]
3. NOTICE OF PRACTICAL COMPLETION
3.1 The Contractor hereby gives notice that Practical Completion of the Works was achieved on [Practical Completion Date] ("the Date of Practical Completion").
3.2 Practical Completion has been achieved on the following basis:
[Completion Basis]
3.3 The Contractor confirms that the Works are complete except for any minor defects or omissions listed in clause 4 below, none of which prevents the reasonable occupation or use of the Works.
3.4 The Principal is requested to inspect the Works and, if satisfied that Practical Completion has been achieved, to issue a Certificate of Practical Completion (or equivalent) in accordance with the Contract within the timeframe specified in the Contract.
4. DEFECTS LIABILITY PERIOD
4.1 The Defects Liability Period of [DLP Months] months commences on the Date of Practical Completion ([Practical Completion Date]) and expires on [DLP End Date] (the "DLP Expiry Date").
4.2 During the Defects Liability Period, the Contractor remains obliged to rectify, at its own cost, any defect or deficiency in the Works that: (a) becomes apparent during the Defects Liability Period; and (b) is attributable to the Contractor's failure to carry out the Works in accordance with the Contract.
4.3 The Principal shall give prompt written notice to the Contractor of any defect or deficiency that becomes apparent during the Defects Liability Period. The Contractor shall rectify each notified defect within a reasonable time, having regard to the nature and urgency of the defect.
4.4 Upon expiry of the Defects Liability Period and rectification of all identified defects, the Contractor is entitled to the release of any retention monies held by the Principal in connection with the defects warranty, in accordance with the Contract.
5. GENERAL
5.1 Risk in the Works passes to the Principal on the Date of Practical Completion in accordance with the Contract.
5.2 The Contractor's obligation to maintain construction all-risks insurance and public liability insurance in connection with the Works terminates at the expiry of a reasonable period following the Date of Practical Completion or as specified in the Contract, whichever is earlier. The Principal should ensure that its own property insurance is in place from the Date of Practical Completion.
5.3 This Notice does not limit or waive any right of the Contractor to make further claims in connection with the Works, including claims for delay costs, disruption costs, variations, or other amounts payable under the Contract.
5.4 This Notice and all disputes arising in connection with the Works are governed by the laws of [Governing State], Australia. The parties submit to the non-exclusive jurisdiction of the courts of [Governing State] and, where applicable, the dispute resolution procedures under the applicable Security of Payment legislation.
This Notice of Practical Completion is given by the Contractor on the date stated above.
CONTRACTOR
Name: [Contractor Name]
ABN: [Contractor ABN]
Licence: [Contractor Licence]
Address: [Contractor Address], [Contractor Suburb], [Contractor State] [Contractor Postcode]
ACKNOWLEDGEMENT OF RECEIPT BY PRINCIPAL
Name: [Principal Name]
ABN: [Principal ABN]
Address: [Principal Address], [Principal Suburb], [Principal State] [Principal Postcode]
Contractor
________________
Signature
Date: ________________
Principal (Acknowledged)
________________
Signature
Date: ________________
What Is a Notice of Practical Completion (Australia)?
A Notice of Practical Completion in Australia sets the scope of works, price, timeframe, and variation and completion procedures between the principal and the builder or contractor under the Corporations Act 2001 (Cth).
Practical Completion is one of the most significant milestones in any Australian construction contract. It is the trigger for a series of important legal and commercial consequences: the commencement of the Defects Liability Period (DLP) — typically 12 months — during which the contractor must return and rectify any defects that become apparent; the transfer of risk in the works from the contractor to the principal; the termination of the contractor's obligation to maintain construction all-risks insurance; the contractor's entitlement to the release of the first moiety (usually 50%) of any retention held by the principal; and the contractor's entitlement to make a final payment claim for the balance of the contract sum, approved variations, and any other amounts due.
The concept of Practical Completion is defined differently in different standard form contracts used in Australia — including the Australian Standard contracts (AS 4000-1997, AS 2124-1992, AS 4300-1995), the HIA and Master Builders residential contracts, and various government and private sector bespoke contracts. In general, Practical Completion is achieved when the works are complete in accordance with the Contract Documents except for minor defects or omissions that do not prevent the reasonable use or occupation of the works.
In addition to its contractual significance, a Notice of Practical Completion may also serve as a Payment Claim under the applicable Security of Payment legislation — the Building and Construction Industry Security of Payment Act (NSW, VIC, SA, TAS, ACT) or its equivalents in QLD (Building Industry Fairness (Security of Payment) Act 2017), WA (Construction Contracts Act 2004), and NT (Construction Contracts (Security of Payment) Act 2004). These Acts give contractors a fast-track statutory right to payment and adjudication without having to resort to court proceedings.
The legal framework governing the Notice of Practical Completion (Australia) in Australia draws on several key statutes and regulatory bodies. Under the Corporations Act 2001 (Cth), the Australian Securities and Investments Commission (ASIC) regulates companies and financial services. Section 127 of the Corporations Act 2001 governs company execution of documents. The Australian Competition and Consumer Commission (ACCC) enforces the Competition and Consumer Act 2010 (Cth). The Australian Taxation Office (ATO) administers the Goods and Services Tax under the A New Tax System (Goods and Services Tax) Act 1999. The Federal Court of Australia and Supreme Courts of each state have jurisdiction over corporate disputes. Parties executing a Notice of Practical Completion (Australia) in Australia should confirm the document reflects current law, including any amendments enacted since the original drafting date. The Corporations Act 2001 (Cth) sets the foundational requirements.
When Do You Need a Notice of Practical Completion (Australia)?
A Notice of Practical Completion is needed at the point in a construction or building project when the contractor believes the works are substantially complete and meets the contractual definition of Practical Completion, and the contractor wishes to formally notify the principal of this fact and trigger the associated contractual entitlements.
You should issue a Notice of Practical Completion when: you are the contractor and the works are substantially complete in accordance with the Contract Documents — all structural, civil, mechanical, electrical, and hydraulic works are done, any required occupation certificate or building approval has been obtained, and only minor defects or items of no consequence to the use of the works remain outstanding; you are the contractor and you wish to formally start the Defects Liability Period clock, which entitles you to have the DLP run concurrently with any outstanding rectification works rather than remaining open-ended; you are the contractor and you are seeking to make a final payment claim for the balance of the contract sum, approved variations, and any retention due upon Practical Completion — combining the Notice of Practical Completion with a Payment Claim under the applicable Security of Payment Act is a common and efficient approach; you are the contractor and you need to formally transfer risk in the completed works to the principal, so that the principal's insurance obligation commences and the contractor can wind down construction insurance cover; and you are the principal or superintendent and you wish to issue a Certificate of Practical Completion acknowledging the contractor's Notice — this document can also be used by a principal or superintendent to record and certify Practical Completion.
A Notice of Practical Completion is a critical document in the administration of any commercial construction contract. Failure to issue the Notice promptly upon achieving Practical Completion may delay the commencement of the DLP, delay the contractor's entitlement to final payment, and create ambiguity about when risk passed to the principal.
What to Include in Your Notice of Practical Completion (Australia)
A well-drafted Australian Notice of Practical Completion should contain the following key elements.
Identification of the Contract and Parties — The Notice should clearly identify the construction contract by name, date, and reference number, and identify the contractor (as the party issuing the Notice) and the principal (as the party receiving it). Both parties' legal names, ABNs, and addresses should be included, together with the contractor's relevant licence number (for example, QBCC Licence in Queensland, NSW Fair Trading Contractor Licence, or VBA Registration in Victoria).
Clear Statement of the Date of Practical Completion — The Notice must state the specific date on which Practical Completion was achieved. This is the date from which the Defects Liability Period commences, risk passes to the principal, and the contractor's entitlement to final payment is triggered.
Description of the Works and Site — The Notice should include a description of the works that are the subject of the Notice and the address of the site. This is important for clarity, particularly where a contract encompasses multiple stages or separate works.
Basis for Practical Completion — The Notice should explain why the contractor considers Practical Completion to have been achieved — for example, the works are substantially complete in accordance with the Contract Documents, an occupation certificate has been obtained from the relevant local authority, or the works are ready for their intended use.
Outstanding Minor Defects Schedule — If any minor defects or items remain outstanding at the date of Practical Completion, these should be listed in the Notice with proposed completion dates. This demonstrates that the contractor is not claiming Practical Completion for works that contain significant outstanding items.
Defects Liability Period — The Notice should state the commencement date and duration of the DLP, and calculate the DLP expiry date. This avoids any dispute about when the DLP runs.
Final Payment Claim (Security of Payment) — Where the Notice is also serving as a Payment Claim under the applicable Security of Payment Act, it should clearly state the amount claimed, the breakdown of the claim, and the due date for payment. The reference to the applicable Act should be included to activate the statutory rights and obligations under that Act.
Additional compliance elements for a Notice of Practical Completion (Australia) used in Australia include: Under the Corporations Act 2001 (Cth), the Australian Securities and Investments Commission (ASIC) regulates companies and financial services. Section 127 of the Corporations Act 2001 governs company execution of documents. The Australian Competition and Consumer Commission (ACCC) enforces the Competition and Consumer Act 2010 (Cth). The Australian Taxation Office (ATO) administers the Goods and Services Tax under the A New Tax System (Goods and Services Tax) Act 1999. The Federal Court of Australia and Supreme Courts of each state have jurisdiction over corporate disputes. Forms-legal.com provides this template as a starting point for Australia-compliant documentation.
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Reference this free template in an article, syllabus, or research note:
Forms Legal. (2026). Notice of Practical Completion (Australia) (Australia) [Legal document template]. Forms Legal. https://forms-legal.com/australia/business/contracts/notice-of-practical-completion-australia
"Notice of Practical Completion (Australia) (Australia)." Forms Legal, 2026, https://forms-legal.com/australia/business/contracts/notice-of-practical-completion-australia.
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year = {2026},
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note = {Free legal document template. Based on Corporations Act 2001 (Cth)}
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Frequently Asked Questions
Practical Completion is a concept in Australian construction law that defines the stage at which the works under a construction contract are substantially complete for the purposes of the contractor's obligations under the contract. The definition of Practical Completion varies between standard form contracts, but it typically means that the works are complete except for minor defects or omissions that do not prevent the reasonable occupation or use of the works. In the absence of a contractual definition, Australian courts have interpreted Practical Completion by reference to principles derived from cases including Multiplex Constructions Pty Ltd v Abgarus Pty Ltd (1992) 33 NSWLR 504, which held that Practical Completion is achieved when the works are 'done' in the sense of being complete for practical purposes, even if minor items remain. The significance of Practical Completion in Australian construction contracts is significant: it is typically the trigger for the commencement of the Defects Liability Period, the release of the first moiety of retention monies, the transfer of risk in the works from the contractor to the principal, the termination of the contractor's obligation to maintain construction insurance, the commencement of the contractor's obligation to pay liquidated damages for delay (if the works were completed late), and the Contractor's entitlement to the final payment milestone.
Each Australian state and territory has its own Security of Payment legislation that provides statutory rights for contractors and subcontractors in the building and construction industry to receive progress payments without delay, and to resolve payment disputes through a fast-track adjudication process. The relevant legislation varies by state: Building and Construction Industry Security of Payment Act 1999 (NSW), Building and Construction Industry Security of Payment Act 2002 (Vic), Building Industry Fairness (Security of Payment) Act 2017 (Qld), Construction Contracts Act 2004 (WA), Building and Construction Industry Security of Payment Act 2009 (SA), Building and Construction Industry Security of Payment Act 2009 (Tas), Building and Construction Industry (Security of Payment) Act 2009 (ACT), and Construction Contracts (Security of Payment) Act 2004 (NT). Under these Acts, a contractor is entitled to serve a Payment Claim on the principal for amounts due under a construction contract, including the final payment due upon Practical Completion. A Notice of Practical Completion can include a final Payment Claim under the applicable Act. The principal must respond with a Payment Schedule within the prescribed period (typically 10 to 15 business days depending on the Act), setting out the scheduled amount and reasons for any reduction. If the principal fails to provide a Payment Schedule, the claimed amount becomes a debt immediately payable, and the contractor may pursue recovery in court or apply for adjudication.
A Defects Liability Period (DLP) is a period — typically 12 months from the date of Practical Completion, but the duration is specified in the contract — during which the contractor is obliged to return to site and rectify defects or deficiencies in the works that become apparent after Practical Completion. The DLP is a warranty period, not a limitation period. It does not limit the principal's right to pursue the contractor for latent defects that only become apparent after the DLP expires — the applicable statutory limitation period under state legislation (typically 6 years for a simple contract or 12 years for a deed in most states) continues to apply to claims arising out of the contractor's breach of contract. During the DLP, the contractor's obligations are: to rectify any defect or deficiency in the works (that is attributable to the contractor's failure to carry out the works in accordance with the contract) within a reasonable time of receiving written notice from the principal; to carry out any outstanding works identified in the defects schedule attached to the Certificate of Practical Completion; and to provide the principal with as-built drawings, operation and maintenance manuals, and warranties from suppliers and subcontractors, as required by the contract. Upon expiry of the DLP and rectification of all identified defects, the contractor is generally entitled to release of the second moiety of retention and the issue of a Final Certificate under the contract.
If the principal disputes that Practical Completion has been achieved — for example, on the grounds that the works contain significant defects that prevent occupation or use, or that the works do not comply with the Contract Documents — the principal should respond to the Notice of Practical Completion within the period specified in the contract, setting out in writing the basis for the dispute and identifying the specific items that are said to prevent Practical Completion. The appropriate response depends on the contract and the nature of the dispute. Under most standard form contracts (such as AS 4000-1997, AS 2124-1992, or the HIA or MBA residential contracts), the Superintendent or Contract Administrator has the power to issue or decline to issue a Certificate of Practical Completion. If the Superintendent declines to issue a Certificate, the contractor may refer the dispute to the dispute resolution procedure under the contract — typically expert determination, adjudication (under the applicable Security of Payment Act), or arbitration. If the contractor has also served a Payment Claim with the Notice of Practical Completion, the principal must serve a Payment Schedule responding to the claim within the prescribed period under the applicable Security of Payment Act, regardless of the dispute about Practical Completion — failure to do so may result in the claimed amount becoming immediately payable as a debt, even if the principal disputes Practical Completion.
Under most Australian standard form construction contracts, risk in the works passes from the contractor to the principal at the date of Practical Completion (or, in some contracts, at the date of the Certificate of Practical Completion). Before Practical Completion, the contractor generally bears the risk of loss or damage to the works from any cause whatsoever (subject to specific exclusions for Principal-caused risks), and is obliged to maintain construction all-risks insurance covering the works. Upon Practical Completion, the risk passes to the principal, who should ensure its own property insurance is in place from that date. The contractor's obligation to maintain construction insurance generally terminates at or shortly after Practical Completion (the exact timing varies between contracts). Under AS 4000-1997, which is the most widely used standard form for commercial construction in Australia, the contractor's risk in and responsibility for the Works, including the cost of replacement or reinstatement of any loss or damage, passes to the Principal upon Practical Completion. The contractor retains responsibility for loss or damage caused by the contractor's own acts or omissions during the Defects Liability Period. Risk transfer is one of the most commercially significant consequences of the Date of Practical Completion, and it is important that the principal ensures adequate property insurance is arranged to commence from that date.
This template is provided for informational purposes only and does not constitute legal advice. Laws vary by jurisdiction and change over time. Consult a qualified attorney for advice specific to your situation.Full disclaimer
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