What home warranty insurance covers in Australia: state-by-state rules, limits and claim triggers

Home warranty insurance requirements vary substantially across Australia. Cover becomes compulsory above $3,300 of building work in Queensland and at or above $25,000 in the Northern Territory. Between those two figures sit five more schemes, each with its own name, threshold, cover limit and claim trigger. There is no national home warranty insurance scheme in Australia, and no single answer to what the cover includes.

Seven of Australia's eight states and territories operated a scheme when this article was reviewed. Victoria's replacement scheme, Home Warranty, commenced on 1 July 2026. Tasmania passed enabling legislation in 2023, but the provisions commence by proclamation, and no proclamation was verified at the time of writing.

SECTION 01 · DEFINITION

What home warranty insurance is and why it exists

Home warranty insurance is a statutory protection attached to eligible residential building work. It responds when a builder cannot or will not finish the job or fix defective work, and it is required by state or territory law rather than chosen by the homeowner.

The term is an umbrella expression rather than the official name in most jurisdictions, and the underlying legal models differ.

Two design differences matter more than the naming. The first is whether a scheme is last resort or first resort. A last-resort scheme responds only after a terminal builder event, such as insolvency, death or disappearance. A first-resort scheme can respond to incomplete or defective work while the builder is still trading.

The second is that the protection sits behind the builder, not in place of the builder. In every jurisdiction reviewed, the contractor's own contractual and statutory obligations remain primary.

SECTION 02 · JURISDICTIONAL DIFFERENCES

Home warranty insurance rules by state and territory

Home warranty insurance rules vary substantially between Australia's states and territories. A lower mandatory threshold does not necessarily provide a higher level of cover.

Queensland sets the lowest threshold of any scheme, and also has one of the lowest cover amounts. The Northern Territory sets the highest threshold, yet caps its $200,000 cover at 20% of the contract price.

The type of scheme matters more than the dollar figure. New South Wales is a last-resort scheme, so nothing is paid while the builder is still trading and solvent. Queensland is a first-resort scheme, allowing cover to respond in a broader range of circumstances. New South Wales's $340,000 and Queensland's $200,000 are therefore not a fair comparison.

Published cover figures range from $200,000 to $400,000, but they measure different things:

• A statutory minimum a policy must provide
• A total ceiling on all assistance
• An aggregate covering both completion and defects
• A default amount per category of loss
• A current insurer-set policy limit

Cover periods for major or structural defects are similar across states, running from 5 years to 6 years and 6 months. Periods for other defects vary more: 6 months in Queensland against 2 years in New South Wales and Victoria, a fourfold difference.

Six of the seven cover figures come from a government or regulator. The Northern Territory's does not: its $200,000 figure is published by Fidelity Fund NT, an industry-run trust, and is capped at 20% of the contract price. On a $400,000 contract that cap limits cover to $80,000.

SECTION 03 · WHEN IT IS REQUIRED

When is home warranty insurance mandatory?

Home warranty insurance becomes mandatory when residential building work meets the value and eligibility rules set by the relevant state or territory scheme.

Queensland's threshold of $3,300 captures work that would fall well below the requirement in every other jurisdiction, including many single-trade renovations. South Australia's threshold rose from $12,000 to $20,000 on 10 November 2025, and the Northern Territory's rose from $12,000 to $25,000 for certificates issued after 30 March 2026.

Passing the contract-value threshold does not automatically make cover compulsory. Each scheme also defines which work is covered and which categories are exempt, and those tests can remove a project that sits well above the dollar figure.

New South Wales publishes 11 exemption categories, including:

• Build-to-rent schemes
• Certain registered charities and recognised housing providers
• Council developers
• Public sector agencies
• Retirement villages
• Kit-home suppliers who do not assemble
• New buildings with a rise of more than three storeys containing multiple home units

South Australia excludes prescribed categories under the Building Work Contractors Regulations 2011: work solely for demolition, construction of a multi-storey residential building, and work for the South Australian Housing Trust. Short-term holiday accommodation and subcontracts to a head contractor also fall outside the requirement.

SECTION 04 · SCOPE OF COVER

What the insurance covers and excludes

Across the operating schemes, cover falls into three broad categories: non-completion of the work, defective work, and in some jurisdictions, a lost deposit. Several schemes add consequential costs such as alternative accommodation.

Exclusions are more consistent. Wear and tear, maintenance, minor cosmetic differences, and work performed outside the contract or the cover period are commonly excluded.

Victoria's limits are set directly by the Building (Statutory Insurance Scheme) Regulations 2026 rather than only described in guidance. Regulation 21 caps total assistance at $400,000 for all losses relating to a home. Within that, regulation 17 limits assistance for completing incomplete work to 30% of the contract price, regulation 23 caps accommodation, removal and storage costs at $12,000, and regulation 22 caps site security at $5,000.

Western Australia publishes three separate consumer figures: a $200,000 aggregate limit, deposit protection up to $40,000, and an excess the insurer is permitted to charge of $500. South Australia describes its cover differently again: the scheme administrator states that building indemnity insurance contributes to the costs of completing a project above the original contract price, with the owner still paying the remainder of the contract price to the replacement builder.

SECTION 05 · SCHEME ACTIVITY DATA

Queensland home warranty insurance claims, premiums and policies

The Queensland Building and Construction Commission's annual report provides the only government source publishing a five-year home warranty scheme-activity series. New South Wales publishes a Home Building Compensation data portal, but it is structured differently.

In 2024–25, the Queensland Home Warranty Scheme issued 164,050 policies covering $21.5 billion of notified work, collected $198.3 million in premiums, received 1,964 claims and approved $60.7 million in claims.

Approved non-completion claims rose from $9.9 million in 2020–21 to $62.9 million in 2023–24, then fell to $31.4 million in 2024–25, a decrease of 50.1% in one year. Approved defective-work claims followed a different path, rising steadily from $16.6 million to $23.5 million, an increase of 41.6% in nominal terms.

Policies issued fell 2.6% between 2020–21 and 2024–25, from 168,468 to 164,050, while premiums rose 40.7%. Dividing premiums by policies gives an average premium per policy of $1,209 in 2024–25, up from $836 in 2020–21.

Source: QBCC Annual Report 2024–25, page 22, Table 21. Policies issued counts policies written in the financial year, not policies in force. Claims approved is the dollar value approved in the year, not necessarily cash paid in that year. Monetary figures are nominal.

Claims received per 1,000 policies issued fell from 18.3 in 2022–23 to 12.0 in 2024–25. Claims lodged in a year relate to work insured across several earlier years, so that ratio indicates scheme workload rather than a defect rate for any cohort of homes.

SECTION 06 · INSURANCE VERSUS WARRANTIES

How home warranty insurance differs from builder warranties

The builder remains responsible for completing the work and fixing defects. Home warranty insurance is a separate protection that responds when the builder cannot be pursued, or, under some first-resort schemes, will not act.

Three distinct types of protection can operate at the same time, and are often confused.

Statutory warranties are not optional guarantees offered by the builder. In South Australia, section 32 of the Building Work Contractors Act 1995 implies six warranties into every domestic building work contract: proper workmanship to accepted trade standards, good and proper materials, compliance with statutory requirements, reasonable diligence, fitness for human habitation, and fitness for a purpose made known by the owner.

Section 42 of the same Act provides that any purported exclusion, limitation, modification or waiver of a right or warranty implied by the Act is void. A builder cannot contract out of these obligations.

Home warranty insurance sits behind those warranties rather than replacing them. Section 35 describes a complying policy as one that insures a person entitled to the benefit of a statutory warranty against the risk of being unable to enforce or recover under that warranty because of the contractor's insolvency, death or disappearance.

SECTION 07 · COST AND TIMING

Who pays for home warranty insurance and when it is arranged

In every operating scheme the builder or principal contractor arranges the cover, not the homeowner. The premium is a cost of the job, and in most jurisdictions the published guidance says it may sit in the contract price rather than being charged separately.

Source: SIRA NSW; BPC Victoria; QBCC; DEED Western Australia; Government of South Australia and Advisory Notice Building 03/25; ACT EPSDD; Northern Territory Government. The Victorian deadline is set by regulator guidance rather than by the Building (Statutory Insurance Scheme) Regulations 2026, which do not fix the window.

South Australia links the timing requirements to the approval process rather than to the contract. Under Advisory Notice Building 03/25, insurance certificates must be provided to the relevant authority with the building consent application when a contract is already in place, and building work must not commence before all certificates for that work have been lodged.

Owner-builders in South Australia must obtain a certificate from each contractor doing work valued at $20,000 or more that forms part of a development approval. Insurance is not required for work owner-builders carry out themselves.

SECTION 08 · CLAIM TRIGGERS

How home warranty insurance claims are triggered

Four of the seven operating schemes are last resort, and New South Wales is classified as predominantly last resort. A claim generally requires a terminal event affecting the builder, such as death, disappearance, insolvency, or, in some jurisdictions, the cancellation or suspension of the builder's registration or licence.

Queensland is a first-resort scheme, while Victoria's scheme, which commenced on 1 July 2026, also responds more broadly. These schemes do not rely only on the terminal builder events used by traditional last-resort schemes.

New South Wales adds a trigger the other last-resort schemes do not share: suspension of the contractor's licence for failing to comply with a tribunal or court order to pay compensation to the homeowner.

Queensland's scheme extends beyond contractor conduct. Eligible events can include fire, storm, vandalism or theft affecting incomplete work, and defective-work claims can also include subsidence. Victoria's scheme responds where the builder is unable or unwilling to complete or rectify, with most defect claims beginning with a written complaint notice to the builder unless a serious contract event has occurred.

SECTION 09 · COVER PERIODS AND WARRANTIES

How insurance fits alongside defects liability periods and statutory warranties

There is no national defects liability period. It is usually set by the building contract, varies between projects and is separate from statutory warranties and home warranty insurance cover periods.

Western Australia sets a statutory floor. Section 11 of the Home Building Contracts Act 1991 makes it a term of every contract that the builder is liable to make good defects notified in writing within 4 months of practical completion, and section 11(1a) allows a contract to provide a longer period. Home indemnity insurance there runs during construction and for 6 years after practical completion.

In the ACT, the insurance period of 5 years is shorter than the 6-year structural warranty, so a statutory warranty can remain in force after the insurance period has ended. In South Australia, section 32(5) of the Building Work Contractors Act 1995 requires proceedings for breach of a statutory warranty to be commenced within 5 years after completion, and section 32(6) provides that this period may not be extended.

In Tasmania, section 32(1) of the Residential Building Work Contracts and Dispute Resolution Act 2016 gives owners 6 years from practical completion to commence proceedings for breach of a statutory warranty. Tasmania did not have an operating home warranty insurance scheme when this article was reviewed, so no insurance scheme stood behind those statutory warranties.

In Queensland, structural cover generally runs 6 years 6 months from the cover commencement day, with an additional 6 months in some delayed-completion cases, while non-structural cover runs 6 months after the work is substantially complete, with claims required within 7 months.

Source: as cited in the references. The ACT row is highlighted because the insurance period and the structural statutory warranty differ, at 5 years and 6 years respectively. Periods are stated at a high level and do not exhaust exemptions, transitional provisions or definitions.

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