Public liability and construction insurance requirements for Australian builders
Tasmania expressly makes public liability and contract works insurance a condition of holding specified builder licences, with a minimum public liability indemnity of $5 million for any one claim. Victoria also requires public liability insurance for specified registration classes.
Project-specific residential cover is more widely applied. The lowest published contract-value threshold is $3,300 in Queensland, while published cover figures range from $200,000 to $400,000. These figures are set on different bases and are not directly comparable.
Licence or registration condition
TAS + VIC
For specified classes
Tasmanian minimum
$5m
Public liability, any one claim
Published project cover
$200k–$400k
Different scheme bases
Lowest threshold
$3,300
Queensland
What home warranty insurance covers
Thresholds, limits and claim triggers by jurisdiction.
Read full article →Home insurance costs by state
Compare premiums across 330 Australian regions.
Read full article →SECTION 01 · MANDATORY COVER
What insurance are builders required to carry?
Australian builders may be required to hold five main types of cover: public liability, contract works, home warranty or its state equivalent, professional indemnity and workers compensation. No single policy is required of every builder in every jurisdiction, and none substitutes for another.
Licence conditions in Tasmania
Builder (General construction) and Builder Fire Protection Services must hold contract works and public liability cover. A Builder – Demolisher licence requires public liability only. Defence costs are payable in addition to the $5 million liability limit, although the policy may cap those costs at 20% of the indemnity limit.
Registration and contract conditions
Victoria applies public liability requirements to specified classes, including builder-demolishers and temporary-structure practitioners, with published minimums from $5 million to $10 million. Queensland guidance says most building contracts require public liability and contract works cover, making the obligation project- and contract-specific rather than a general licensing condition.
Basis on which public liability and contract works insurance arises for builders
Licence or registration conditions, contract requirements, or requirements not established in the official sources reviewed at 30 July 2026.
Public liability
Contract works
NSW
Not established
Not established
Victoria
Registration condition
Not established
Queensland
Contract-based
Contract-based
South Australia
Not established
Not established
Western Australia
Not established
Not established
Tasmania
Licence condition
Licence condition
ACT
Not established
Not established
Northern Territory
Not established
Not established
Source: CBOS Tasmania; QBCC; Building and Plumbing Commission Victoria; SIRA NSW; SAFA; Building and Energy WA; ACT and NT governments.
Scope of the comparison
“Not established” reflects the official sources reviewed and does not mean no obligation exists. A licence class, contract, procurement arrangement or individual project may impose additional requirements.
Workers compensation and motor injury insurance
Workers compensation is separately required for businesses employing workers. Compulsory third-party motor cover attaches to registered vehicles rather than building work. Neither is provided by public liability, contract works or home warranty cover.
SECTION 02 · POLICY COMPARISON
How public liability insurance differs from home warranty cover
Public liability responds to legal liability for third-party death, injury or property damage caused by negligence. Home warranty and equivalent schemes protect homeowners where residential work is incomplete or defective and the builder cannot make it good.
Public liability compared with home warranty and equivalent schemes
| Feature | Public liability | Home warranty and equivalents |
|---|---|---|
| Risk insured | Third-party injury or property damage | Incomplete or defective residential work |
| Who benefits | Public, neighbours and third-party property | Homeowner and usually successors in title |
| Trigger | An occurrence causing injury or damage | Local project and scheme failure tests |
| Requirement | Selected classes or contracts | Project-specific statute in most jurisdictions |
| Does not replace | Warranty, works, workers compensation or PI | Liability, works or ordinary property insurance |
Timing also differs. Queensland structural-defect cover runs for six years and six months, while Western Australian home indemnity generally covers the construction period and six years after practical completion. Public liability responds according to when injury or property damage occurs.
SECTION 03 · CONSTRUCTION-PERIOD COVER
What contract works insurance covers during construction
Contract works insurance covers unforeseen physical loss of or damage to the building works while construction is underway. Published Queensland examples include theft, vandalism, fire and storm.
Tasmania requires the sum insured to equal the value of the works, with allowances for debris removal and professional fees. Cover includes temporary works, scaffolding, materials, alterations and refurbishment, and any maintenance period specified in the contract.
Tasmania — licence based
Required for general-construction and fire-protection builder licences. The insured parties extend to principals, contractors, providers, employees and specified subcontractors.
Queensland — contract based
Most building contracts require cover from construction through to handover. It remains separate from the statutory home warranty scheme.
SECTION 04 · REGULATED PROFESSIONALS
Which building professionals need professional indemnity insurance?
Professional indemnity is mandatory for specified building professionals in New South Wales, Victoria, Queensland and Tasmania. Published minimums range from $500,000 to $5 million, but apply to different professional classes and are not directly comparable.
The named classes are mostly design, certification, engineering and project-management roles, so professional indemnity is not a general builder policy. In New South Wales, registered building practitioners are due to require indemnification from 1 July 2027.
Professional indemnity requirements by jurisdiction
| Jurisdiction | Classes covered | Published minimum |
|---|---|---|
| New South Wales | Design practitioners and professional engineers; building practitioners from 1 July 2027 | No universal amount published |
| Victoria | Surveyors, inspectors, quantity surveyors, designers and endorsed engineers | $1.5m, or $1m where defence costs are additional |
| Queensland | Specified project managers, designers, certifiers and inspectors | $500,000–$5m by class |
| Tasmania | Architects, surveyors, engineers, permit authorities, consultants and designers | $500,000–$1m |
SECTION 05 · NON-COMPLIANCE
What happens when builder insurance is missing or insufficient?
Failing to hold compulsory project cover can lead to penalties, prosecution or administrative action. New South Wales publishes a maximum penalty of $110,000 for a corporation and $22,000 for other offenders. Western Australia publishes a maximum $50,000 fine on prosecution.
New South Wales
$110,000
Maximum corporate penalty
Western Australia
$50,000
Maximum fine on prosecution
Queensland
10 days
Premium remittance deadline
When a loss exceeds the limit
The difference is uninsured. Western Australia's $200,000 home-indemnity limit is an aggregate ceiling, while the ACT's $200,000 is the minimum amount a policy must provide. An insurance limit does not necessarily remove the builder's underlying liability.
No national underinsurance statistic
No official national prevalence measure or consistent definition of builder underinsurance was located. Published figures describe statutory minimums, scheme limits and maximum penalties—not how often cover falls short.
SECTION 06 · JURISDICTIONAL COMPARISON
How builder insurance requirements differ by state and territory
Residential project thresholds range from $3,300 in Queensland to $25,000 in the Northern Territory. Tasmania had legislated a home warranty scheme, but its relevant operative provisions had not commenced as at 30 July 2026.
Project-specific residential insurance thresholds by jurisdiction
Headline contract-value thresholds in Australian dollars. Tasmania is excluded because its legislated scheme had not commenced at the review date.
Source: Jurisdictional scheme guidance and legislation, 2024–2026.
Project-specific residential insurance requirements
| Jurisdiction | Scheme or cover | Threshold | Published cover figure |
|---|---|---|---|
| New South Wales | Home Building Compensation | $20,000 | Up to $340,000 |
| Victoria | Home Warranty | $20,000 | Up to $400,000 |
| Queensland | Queensland Home Warranty Scheme | $3,300 | $200,000 standard; up to $300,000 optional |
| South Australia | Building Indemnity Insurance | $20,000 | $250,000 |
| Western Australia | Home Indemnity Insurance | $20,000 | $200,000 aggregate |
| Tasmania | Scheme legislated but not commenced | Not applicable | Not applicable |
| Australian Capital Territory | Residential building work insurance | $12,000 | $200,000 minimum |
| Northern Territory | Fidelity fund certificate | $25,000 | Up to $200,000 |
Scheme names do not indicate equivalent cover
The arrangements include last-resort models, broader first-resort cover, fidelity fund certificates and indemnity policies. Thresholds, beneficiaries, exclusions and claim windows all differ.
References
- business.gov.au — Types of business insurance
- SIRA NSW — Home building compensation
- Building and Plumbing Commission Victoria — Home Warranty
- QBCC — Insurance responsibilities
- SAFA — Building indemnity insurance
- Building and Energy WA — Home indemnity insurance
- CBOS Tasmania — Building Services Work Determination
- ACT Government — Residential building work insurance
- NT Government — Fidelity fund certificate
- Safe Work Australia — Comparing workers compensation