Licence Expiry and Scope Drift Risk for Australian Builders

What it is

Two failure modes sit under one heading. The first is expiry: a builder licence lapses and the builder keeps quoting, contracting and invoicing. The second is scope drift: the licence is current, but the work sits outside the class the licence authorises.

Both produce the same result. The builder is contracting without the licence the law requires for that work, and the penalty is not just a fine. It is the loss of the right to be paid.

Licensing is state law. NSW Fair Trading, the QBCC and the Building and Plumbing Commission in Victoria each run their own classes, thresholds and renewal cycles. A builder working across a border is exposed to all of them.

Expiry: the contract stops working

In NSW, section 4 of the Home Building Act 1989 makes it an offence to contract to do residential building work without holding a contractor licence. The maximum penalty is 1,000 penalty units for a corporation and 200 penalty units in any other case.

The fine is the small part. Section 10 is the one that bites. A builder who contracted in breach of section 4 is not entitled to damages and cannot enforce any other remedy for a breach by the owner. The contract is unenforceable by the builder, while the owner keeps every remedy. An unpaid progress claim on a lapsed licence is, in practice, uncollectable. The owner defect claim survives untouched.

Home warranty insurance rides the same rail. No current licence means no HBCF eligibility, so no certificate of insurance, and under section 92 no lawful right to demand or receive any payment, including the deposit. Section 94 then bars recovery for the work, including on a quantum meruit basis, unless a court or tribunal considers it just and equitable.

Queensland runs the same logic through section 42 of the QBCC Act 1991. A person who carries out building work without the right licence is not entitled to any monetary consideration for it. The narrow exception allows a claim for reasonable remuneration capped at what was actually paid for materials and labour, with no allowance for the builder own labour and no profit.

Scope drift: the right licence, the wrong work

Scope drift is quieter and far more common. The licence is current. The renewal is paid. The work is outside the class.

• A Victorian Domestic Builder (Limited) taking on components outside the nominated ones. Victoria runs three domestic builder classes: Unlimited, Unlimited with conditions and Limited.
• A QBCC builder low rise licence taking a job above its storey or floor area limit.
• General building work that swallows waterproofing, structural landscaping, demolition or asbestos removal, each a separate licence or endorsement in most states.
• A restricted class exceeding the value cap attached to it.
• A residential builder stepping into a Class 2 building, which pulls in the NSW Design and Building Practitioners regime on top of the contractor licence.

Section 42 of the QBCC Act catches this expressly. The offence is committed by a person who holds no licence at all and equally by a person working outside what their licence allows.

The mutual recognition trap

Mutual recognition and automatic mutual recognition let a builder registered in one state work in another. They do not upgrade the licence. Scope in the second state is tied to scope held in the home state, and the conditions of the second state still apply. A builder authorised for low rise at home does not acquire an unlimited class by crossing a border.

How it shows up on a job

• A renewal notice sitting unopened while the builder is on site.
• A licence number on a contract that does not match the entity signing it.
• A trade line in the scope of works with no matching licence class on file.

What to do about it

Put licence expiry dates in the same calendar that runs insurance renewals and set the reminder 60 days out, not 7. Renewal after expiry becomes a restoration, and restoration is discretionary.

Before each job, map the scope of works line by line against the licence classes the entity actually holds. Every line without a class is either a licence application or a subcontract to someone who holds it.

Check the contracting entity, not the person. The licence must sit in the name that signs the contract. A licence held personally does not licence the Pty Ltd.

Search the public register rather than trusting the wallet card. Every jurisdiction publishes a free licence check.