INSIGHT · CONTRACTS & PAYMENTS

Practical completion: two states write
the defects list into the definition.

10 November 2026

Practical completion for a home building contract is defined by statute in Queensland and Tasmania, and in both the date arrives only when the builder has given a signed defects document if the owner claims minor defects. As read on 10 November 2026, Victoria ties final payment to a copy of the occupancy permit or certificate of final inspection, WA defines practical completion for its 4-month defects term and its insurance claim period, NSW guidance says the Home Building Act 1989 defines completion, by the contract first, and South Australia's Act defines neither.

Two people pointing at patched plasterboard on an interior wall during fit-out

Analysed 10 November 2026 · QBCC Act 1991 (Qld), current from 1 February 2026 · Residential Building Work Contracts and Dispute Resolution Act 2016 (Tas), version published 16 July 2024 · Domestic Building Contracts Act 1995 (Vic), Version 094 · Home Building Contracts Act 1991 (WA), 04-h0-00 · Building Work Contractors Act 1995 (SA), version 15 January 2026 · Building Act 2004 (ACT), Republication 57 · Building Act 1993 (NT), as in force at 10 February 2026 · NSW Fair Trading guidance updated 29 April 2026, NSW Act not verified · all read 10 November 2026.

Key takeaways

Two statutory definitions, written the same way: Queensland (QBCC Act 1991 sch 1B s 1) and Tasmania (Residential Building Work Contracts and Dispute Resolution Act 2016 s 4) define practical completion as the day the work is completed in compliance with the contract and all statutory requirements, without defects or omissions other than minor ones that will not unreasonably affect occupation, and, if the owner claims minor defects, once the builder gives a defects document.
The defects document has four required parts: In both Acts it lists the minor defects and omissions both parties agree exist, states when the builder is to remedy them, lists those the owner claims and the builder does not agree exist, and is signed by the builder. The Queensland definition states no deadline for giving it. Tasmania's s 44 does: as soon as practicable where the builder agrees minor defects exist, with reasonable steps to correct them within 6 months, and s 43 adds a signed notice of practical completion within 10 business days.
Victoria regulates the final payment instead: Under a major domestic building contract, a builder must not demand final payment until the work is completed in accordance with the plans and specifications and the owner has a copy of the occupancy permit or, in any other case, the certificate of final inspection (Domestic Building Contracts Act 1995 s 42).
Elsewhere the word is narrower or absent: WA defines practical completion in s 11(2) of the Home Building Contracts Act 1991 for its 4-month defects term, and s 25D(d) uses that meaning for the insurance claim period. Victoria defines a date of practical completion only for referring a dispute (s 45(6)). The ACT counts from a completion day (Building Act 2004 s 85). We found no definition in the South Australian or NT Acts read. NSW guidance says the Home Building Act 1989 defines completion, by the contract first.
We would store the defects list as the record that dates completion: A system-design recommendation: in Queensland and Tasmania the definition of practical completion refers to the signed defects document, so its fields, signature and delivery date belong on the job record, not in an email.

Practical completion, defects document
and final payment, by state

Australian home building law answers three separate questions about the end of a job: whether a statute defines practical completion, whether it prescribes a defects list, and what must happen before the last payment. The jurisdictions read answer them differently, and of the Acts read, Queensland's and Tasmania's alone prescribe a defects document.

Where no Act defines the term, practical completion is what the contract says it is. Nothing here determines when practical completion occurred on any job.

State	Is practical completion defined by statute?	Defects document or notice rule	Final payment trigger in the Act	Instrument and version read
NSW	NSW: NSW Fair Trading states the Home Building Act 1989 defines completion: residential building work is complete when it matches the contract; if the contract does not specify completion, when it can be used for its intended purpose and is free of major defects, presumed from the earliest of handover, the last work other than remedying minor defects, the occupation certificate, or 18 months after an owner-builder permit. For a strata building, the occupation certificate for the whole building	NSW: none stated on the pages read	NSW: none stated on the pages read. The guidance says contracts over $20,000 must have a progress payment schedule	NSW Fair Trading, Contracts for residential building work, updated 29 April 2026, read 10 Nov 2026. Home Building Act 1989 s 3B text not verified (10 Nov 2026)
Victoria	Victoria: no general definition for contracts. The Domestic Building Contracts Act 1995 defines date of practical completion for dispute referral only (s 45(6)): completed except for omissions or defects that do not prevent the work being reasonably capable of being used for its intended purpose, presumed from the earlier of handover of possession or the builder's last attendance to carry out work (s 45(4))	Victoria: none in the Act read	Victoria: under a major domestic building contract, no demand for final payment until the work is completed in accordance with the plans and specifications and the owner is given a copy of the occupancy permit, or otherwise the certificate of final inspection (s 42)	Domestic Building Contracts Act 1995, Authorised Version 094 as at 1 July 2026, read 10 Nov 2026
Queensland	Queensland: yes, for a domestic building contract (QBCC Act sch 1B s 1), including the defects document where the owner claims minor defects. Part 4A, which does not cover domestic building contracts, has its own definition (s 67A)	Queensland: the defects document lists agreed minor defects and omissions, states when the builder is to remedy them, lists those the owner claims and the builder disputes, and is signed by the builder (sch 1B s 1). No deadline is stated in the definition	Queensland: none found in schedule 1B. A regulated contract must state the date for practical completion or how it is set (sch 1B ss 13(3)(f), 14(3)(g)), and progress claims must relate to and be proportionate to work at the site (s 34)	QBCC Act 1991, current from 1 February 2026, read 10 Nov 2026
South Australia	South Australia: no definition of completion in the Act read. Section 29 refers to a period stipulated in the contract for completion	South Australia: none in the Act read	South Australia: none in the Act read	Building Work Contractors Act 1995, version 15 January 2026, read 10 Nov 2026
WA	WA: defined in s 11(2) for the defects term, and used by s 25D(d) for the 6-year insurance claim period: the work brought to the stage where it is completed except for omissions or defects that do not prevent it being reasonably capable of being used for its intended purpose	WA: an implied term that the builder makes good defects notified in writing within 4 months from practical completion, or a longer period the contract provides (s 11(1), (1a)); regulations may provide exemptions (s 11(3))	WA: none found in the Act read	Home Building Contracts Act 1991, 04-h0-00 as at 5 April 2023, read 10 Nov 2026
Tasmania	Tasmania: yes (s 4), in wording that matches Queensland's, including the defects document where the owner claims minor defects	Tasmania: the same four elements as Queensland (s 4). Where the builder agrees minor defects exist, the defects document is due as soon as practicable, and reasonable steps to correct them within 6 months (s 44(2), (3)). A signed notice of practical completion goes to the owner within 10 business days after practical completion (s 43)	Tasmania: none found. Amounts other than a deposit must be directly related to progress at the building site (s 42)	Residential Building Work Contracts and Dispute Resolution Act 2016, authorised version 16 July 2024, read 10 Nov 2026
ACT	ACT: no practical completion term found. For the warranties in Part 6, the completion day is the later of the day the work is completed and the day the contract ends, and no later than any certificate of occupancy (s 85)	ACT: an affected party may give written notice requiring defective work to be rectified within 2 years after the completion day; later proceedings then presume the work defective and able to be rectified unless the contrary is proven (s 89F)	ACT: none in the Part 6 sections read	Building Act 2004, Republication 57, effective 10 November 2026, read 10 Nov 2026
NT	NT: no definition of practical completion found in the Act read	NT: none found in the Act read	NT: none found in the Act read	Building Act 1993, as in force at 10 February 2026, read 10 Nov 2026

Practical vs final completion,
handover and the certificate

The four terms people search for sit in different places. Practical completion is defined by statute in two jurisdictions; handover appears in the statutory presumptions; final completion and a practical completion certificate are contract terms in the instruments read.

Practical completion: A statutory date in Queensland and Tasmania for domestic and residential building contracts, and a contract term elsewhere. WA and Victoria define it in one section each (WA s 11(2), whose meaning the insurance provisions also use; Vic s 45(6)).
Handover: Handover of possession is one of the dates used to presume when work was completed: in Victoria for dispute referral, the earlier of handover or the builder's last attendance (s 45(4)); in NSW, the earliest of handover, last work, the occupation certificate or the owner-builder date, as NSW Fair Trading states it.
Final completion: None of the Acts read on 10 November 2026 uses the term. Where a contract uses it, usually for the end of a defects liability period, the contract defines it.
Practical completion certificate: None of the Acts read prescribes a certificate of practical completion. A certificate issued under a contract is a contract document; occupancy documents are separate statutory documents, set out on our page on the occupation certificate by state.

What practical completion
starts or ends

In the instruments read, the practical completion or completion date is the start of several clocks, and the clock differs by state. Our page on defect records and statutory warranty periods sets out the warranty periods themselves.

Statutory warranty periods count from completion or practical completion in NSW, Queensland, South Australia and Tasmania, as our defect records page records. They are not repeated here.

WA: the 4-month notification window: Defects notified in writing within 4 months from practical completion, or a longer contract period, are the builder's to make good (Home Building Contracts Act 1991 s 11).
ACT: the 2-year rectification notice: Written notice requiring rectification within 2 years after the completion day shifts the burden in later proceedings (Building Act 2004 s 89F).
Tasmania: the notice and the 6-month correction: A signed notice of practical completion is due within 10 business days after practical completion (s 43). Where a defects document is given, the builder must take reasonable steps to correct the listed items within 6 months (s 44(3)).
Victoria: the final payment: The final payment under a major domestic building contract waits for completion to the plans and specifications and a copy of the occupancy permit or certificate of final inspection (s 42).
Queensland: retention on non-domestic building contracts: For building contracts under Part 4A of the QBCC Act, which excludes domestic building contracts, retention and security are limited to 5% before practical completion and 2.5% after it, and are released 12 months from practical completion where the contract gives no identifiable release period, subject to the conditions and exceptions in ss 67K to 67NA. Our page on retention money by state sets this out.

Types of construction defects,
in the instruments' words

The Acts read sort defects by consequence rather than by trade. A defects list that uses the same words can be read against them later.

Minor defects and minor omissions: Queensland and Tasmania: defects or omissions that will not unreasonably affect occupation. These may remain at practical completion if they are listed in the defects document.
A defect, in WA's defects term: A failure to perform the work in a proper and workmanlike manner and in accordance with the contract, or to supply materials of merchantable quality and reasonably fit for purpose, other than a failure the contract specifically declares the builder not liable for (s 11(2)).
Omissions or defects that do not stop use: Victoria's s 45(6) and WA's s 11(2) both measure practical completion against defects that do not prevent the work being reasonably capable of being used for its intended purpose.
Major, structural and serious: NSW major defect, Queensland structural defect and the ACT structural element are defined for the warranty periods, and are set out on our defect records page. Whether a defect falls within a definition is a question for the parties, a regulator, a tribunal or a court.

A defects list record,
field by field

A defects list at practical completion is a record before it is a form. Its fields come from three places: an instrument that requires them, contract custom, or our design.

Required means a field an instrument names: the definitions in the two Acts that prescribe a defects document, and Tasmania's s 43. In other states the list is a contract document and its fields are customary or our design.

Field	Source	Why it is load-bearing
Minor defects and omissions both parties agree exist	Required by QBCC Act sch 1B s 1 (Qld) and RBWCDRA s 4 (Tas), where the owner claims minor defects	Part (a) of the defects document in both Acts.
When the builder is to remedy each one	Required by the same definitions, part (b)	The Acts ask for a statement of when, so a date or a stated period per item answers it.
Items the owner claims and the builder disputes	Required by the same definitions, part (c)	The disputed list is part of the document, not a separate letter.
Builder's signature	Required by the same definitions, part (d)	The definitions require the builder's signature.
Notice of practical completion, signed, and the date given	Required by RBWCDRA s 43 (Tas)	Due within 10 business days after practical completion; kept with the defects document.
Date the document was given to the owner	Our design	The Queensland and Tasmanian definitions refer to the document being given, so the delivery date and method are kept with it.
Location, element and trade for each item	Customary	Lets each item be assigned, and read later against the element-based definitions on our defect records page.
Photo or measurement reference	Our design	Shows the condition on the listed date, before rectification changes it.
Rectified date and who accepted the work	Customary	Closes each item with a date and a named person.
Written defect notices received after completion, with dates	Our design	WA's 4-month window (s 11) and the ACT's 2-year notice (s 89F) run from the completion date and turn on written notice.

What we would put in a system

For each home building job we would hold the end-of-job record in one place, so the completion date and the open items can be shown without reconstructing them.

Where agents help here is narrow. A compliance agent can draft a defects list from walk-through notes and photos, check that the four required parts are present, and flag notice windows against the date recorded; a person confirms each list and signs it. No agent decides whether practical completion has occurred, whether a defect is minor, or whether a payment is due.

Field	Why it is load-bearing
State, Act and the definition relied on	Queensland and Tasmania define practical completion; Victoria, WA and the ACT use other dates for other purposes; elsewhere the contract governs.
Practical completion date, and the evidence for it	The signed defects document, the handover record, the last site attendance, the occupancy document: whichever the definition or presumption uses.
The defects document as given	Its four required parts, the signature and the delivery date, in Queensland and Tasmania.
Final payment conditions	In Victoria, the occupancy permit or certificate of final inspection copy given to the owner before the final payment claim.
Notice dates after completion	WA's 4-month window and the ACT's 2-year notice depend on when written notice arrived.

Questions worth asking
of your own completion records

For a builder in Queensland or Tasmania: can each job show the signed defects document and the date it was given?

Where the owner claims minor defects, both Acts make giving a signed defects document part of practical completion (QBCC Act sch 1B s 1; Tas s 4). A job record that holds the signed copy and its delivery date shows the dates the definition refers to. General information as read on 10 November 2026, not legal advice.

For a Victorian builder: is the occupancy permit or certificate of final inspection copy in the owner's hands before the final claim goes out?

Section 42 of the Domestic Building Contracts Act 1995 bars demanding final payment under a major domestic building contract until it is. A record of when the copy was given sits next to the final claim. General information as read on 10 November 2026, not legal advice.

For a builder in WA: is every written defect notice logged against the practical completion date?

Section 11 of the Home Building Contracts Act 1991 implies a term covering defects notified in writing within 4 months from practical completion, or longer if the contract says so. The log needs both dates to show which notices fall inside. General information as read on 10 November 2026, not legal advice.

For a developer in the ACT: are rectification notices received in the 2 years after the completion day recorded with their dates?

Building Act 2004 s 89F lets an affected party give written notice within that period, and later proceedings then presume the work defective unless the contrary is proven. General information as read on 10 November 2026, not legal advice.

Questions people ask
about practical completion

What does practical completion mean?

In Queensland's QBCC Act 1991 sch 1B s 1 and Tasmania's Residential Building Work Contracts and Dispute Resolution Act 2016 s 4, practical completion of a domestic or residential building contract is the day the work is completed in compliance with the contract and statutory requirements, without defects or omissions other than minor ones that will not unreasonably affect occupation, with a signed defects document if the owner claims minor defects. Elsewhere the contract defines it. As read on 10 November 2026.

What is the difference between practical completion and final completion?

Practical completion is defined by statute for home building contracts in Queensland and Tasmania and otherwise by the contract. None of the Acts read on 10 November 2026 uses the term final completion; where a contract uses it, often for the end of the defects liability period, the contract sets its meaning.

Is practical completion the same as handover?

Not necessarily. Handover of possession is one of the dates used to presume completion: in Victoria's Domestic Building Contracts Act 1995 s 45(4), the earlier of handover or the builder's last attendance, for dispute referral; in NSW, the earliest of handover, last work or the occupation certificate, as NSW Fair Trading states it. In Victoria the presumption yields where an earlier date of practical completion can be ascertained. As read on 10 November 2026.

Is a practical completion certificate required by law?

None of the Acts read on 10 November 2026, in the seven jurisdictions other than NSW, prescribes a certificate of practical completion; the NSW Act was not verified. Queensland and Tasmania prescribe a defects document where the owner claims minor defects, and Tasmania a signed notice of practical completion (s 43). Occupancy permits and certificates of occupancy are separate statutory documents. General information, not legal advice.

What should a construction defects list include?

Where a statute prescribes it, in Queensland (QBCC Act sch 1B s 1) and Tasmania (s 4), the defects document lists the minor defects and omissions both parties agree exist, states when the builder is to remedy them, lists the items the owner claims and the builder disputes, and is signed by the builder. Location, trade, photos and the date given are customary or practical additions. As read on 10 November 2026.

What this analysis
does and does not show.

Evidence note

What it shows: Whether the home building and building Acts of each Australian state and territory, as read on 10 November 2026, define practical completion or completion, whether they prescribe a defects document or notice, and whether they set a condition on the final payment.
Key facts quoted: Qld QBCC Act sch 1B s 1 (practical completion, defects document), ss 13, 14, 34; Tas RBWCDRA 2016 ss 4, 42, 43, 44; WA HBCA s 25D(d); Vic DBCA 1995 ss 42, 45(4), 45(6); WA HBCA 1991 s 11; SA BWCA 1995 s 29; ACT Building Act 2004 ss 85, 89F; NSW Fair Trading guidance updated 29 April 2026.

The NSW legislation register blocked automated access on 10 November 2026, so the NSW row rests on NSW Fair Trading guidance, not on the Home Building Act 1989 s 3B text.
The Tasmanian register returned only part of the 2016 Act. The s 4 definitions were read; later sections, including any on final payment, were not.
The NT and ACT rows report what we found in their Building Acts. Neither jurisdiction was searched for other instruments on contract completion.
Contract standard forms, Australian Consumer Law guarantees and regulations made under the Acts (including the Queensland level 2 amount and the Victorian major domestic building contract amount) were not read.
Nothing here is legal advice. It does not determine when practical completion occurred on any job, whether a defect is minor, or whether any payment is due.

Bring us one job at practical completion.

Send us the contract, the walk-through notes and the defects list for one job. We will show you which definition, if any, the job is read against in its state, and whether your record holds the parts and dates it would need.

General information about published legislation and NSW Fair Trading guidance, as read on 10 November 2026 at the versions listed in the sources. Not legal advice. It does not determine when practical completion occurred, whether a defect is minor or whether a payment is due. The NSW Act text was not verified.

Send us the job · Compliance

Sources

Suggested citation: home building and building Acts of Queensland, Tasmania, Victoria, WA, South Australia, the ACT and the NT, and NSW Fair Trading guidance, at the versions listed, as read 10 November 2026. Derived figures: none.

Practical completion: two states write the defects list into the definition.