Australian tradie licence requirements by state and territory

In Australia, licensing for trades is regulated at the state and territory level, not federally. That means a licence issued in one state does not automatically authorise work in another, and the same trade may carry different licensing requirements depending on which side of the border the job is on. This guide covers the key trades in each jurisdiction and links directly to each regulator’s public licence search.

New South Wales (NSW)

The primary regulator is NSW Fair Trading. Licensed trades include: building and construction (Contractor Licence); electrical (Qualified Supervisor Certificate + Contractor Licence); plumbing and draining (Qualified Supervisor Certificate + Contractor Licence); refrigeration and air-conditioning; gas fitting; swimming pool and spa construction; waterproofing; and strata managing agents. Use the NSW licence lookup to confirm a licence number before engaging any contractor.

Victoria (VIC)

The primary regulator is the Victorian Building Authority (VBA). Domestic building work (any work over $10,000 or structural) requires a registered building practitioner. Plumbing, gas fitting, draining, roofing and fire protection also require specific VBA registration. Electrical work requires an Electrical Contractor Licence from Energy Safe Victoria. Use the VBA register search to check building practitioners.

Queensland (QLD)

The Queensland Building and Construction Commission (QBCC) licenses builders, plumbers, drainers, gas fitters, electricians, painters, tilers, glaziers, plasterers, pest management operators and more. The QBCC also runs the Queensland Home Warranty Scheme for domestic building work. Electrical contractor licences are issued by the QBCC in partnership with Electrical Safety Queensland. Use the QBCC licence search to verify any Queensland trade contractor.

Western Australia (WA)

The WA Building Commission registers and licences contractors across building, plumbing, gas fitting and electrical work. The EnergySafety division handles electrical contractor licensing. For home building work over $20,000, a registered builder must provide Home Indemnity Insurance (HII). Use the WA register search.

South Australia (SA)

Consumer and Business Services (CBS South Australia) licenses building work contractors, plumbers and drainers. ESCOSA oversees gas fitting, and the Technical Regulator handles electrical contractor registration. For building work over $12,000, a licensed building work contractor must be engaged. Use the CBS licence search to verify contractor numbers.

Australian Capital Territory (ACT)

ACT tradespeople and contractors are regulated by Access Canberra. Building, plumbing, drainage, gas fitting, electrical and refrigeration and air-conditioning contractors all require licences. The ACT also issues occupancy certificates for completed building work. Use the Access Canberra licence search to verify any contractor in the ACT.

Tasmania (TAS)

Consumer, Building and Occupational Services (CBOS) licenses builders, plumbers, electrical contractors, gas fitters and other regulated occupations in Tasmania. Use the CBOS register search to check any licence number. For electrical work, a licensed electrician must carry out all installations, alterations and repairs to fixed wiring.

Northern Territory (NT)

NT WorkSafe licences plumbers, drainers, gas fitters and other high-risk occupations in the NT. Building contractors undertaking work over $12,000 must hold a building contractor licence from the NT Government. Electrical contractor registration is also required for any electrical work. Use NT WorkSafe’s online register to verify a licence.

When a licence doesn’t transfer between states

Many tradespeople hold licences in one state and occasionally work in others. Under the Mutual Recognition Act 1992, a person licensed to carry out an occupation in one Australian state or territory is entitled to be registered in another — but they must apply for mutual recognition before undertaking work in the new jurisdiction. If a tradie from interstate is working on your home, ask them to confirm they hold a valid licence for the state where the work is being performed.

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About TaskerAsker — the Australian context for trust and safety on TaskerAsker

TaskerAsker is a free, Australia-first marketplace that connects homeowners and renters with verified local service providers. Every provider has their ABN checked before they can quote, their state-issued trade licence is recorded for regulated categories (plumbing, electrical, gas, building) and surfaced on the public profile, and reviews can only be left by customers whose job was booked, completed and paid for through the platform. The result is a quoting experience that filters out the worst of the cold-call cowboys without locking you into a single business.

For homeowners considering trust and safety on TaskerAsker, the practical workflow on TaskerAsker looks like this. You describe the job in plain English, add three or four photos and a rough timeframe, and post it free — there is no obligation to accept any quote and your contact details stay hidden until you choose a provider. Quotes arrive in writing, typically within a few hours during business hours, and each one itemises labour, materials, call-out fees and GST so you can compare like-for-like. You message the providers you want to shortlist, agree on a start date, and release payment in milestones once the work is signed off.

The marketplace covers every state and territory: New South Wales, Victoria, Queensland, Western Australia, South Australia, the Australian Capital Territory, Tasmania and the Northern Territory. Major metro suburbs (Sydney, Melbourne, Brisbane, Perth, Adelaide, Canberra, Hobart, Darwin and the Gold Coast) have the deepest provider supply, but regional towns are covered too — when local supply is thin we surface the nearest matching tradies and indicate the travel-time premium up front, so there are no surprises.

Whatever you are reading about, the underlying promise of TaskerAsker is the same: a free Australian marketplace where homeowners and small businesses can find verified local providers, compare written quotes side by side, and pay safely through milestone payments that release only when the work is signed off.

What to check before you sign a quote for trust and safety on TaskerAsker

Licence number visible on the quote — for regulated trades, the licence must be issued by the relevant state authority (NSW Fair Trading, VBA, QBCC, WA Building Commission, Consumer and Business Services SA, Access Canberra, CBOS or the NT Building Practitioners Board) and current on the date of the work.
Public liability insurance — at least $5,000,000 for residential work; ask for the certificate of currency if the quote is over a few thousand dollars.
GST included or extra — every legitimate quote states this clearly. Vague "price on application" lines are a red flag.
Materials brand and warranty — for fixtures and fittings, ask which brand and what the manufacturer warranty covers versus what the tradie warrants for workmanship.
Payment terms — for jobs under about $3,000 a modest deposit (10–20%) and balance on completion is normal. Larger jobs should run on progress payments tied to defined milestones, never a single up-front lump sum.
Written variations — any scope change costs money. A reputable provider will issue a written variation order before doing the extra work, not after.
Clean-up and disposal — is rubbish removal included, or do you need a skip bin? Demolition jobs in particular are routinely under-quoted when this line item is missing.

Useful next steps for trust and safety on TaskerAsker

Post your job free — describe the work, add photos, receive written quotes from verified Australian tradies.
Browse cost guides — plain-English pricing for every common trade and renovation type.
Use a free cost calculator — get a ballpark before you post so you can sanity-check incoming quotes.
Pre-hire checklists — printable checklists for bathroom renos, end-of-lease cleans, roof repairs and more.
Tradie quote templates — exactly what a complete quote should include before you sign.
Job description examples — how to brief a tradie so the quotes you receive are comparable.
How TaskerAsker works — the full quote-to-payment workflow in seven steps.
Trust centre — how we verify providers, moderate reviews and protect both sides of the market.
Service locations — every Australian state and territory with a TaskerAsker provider footprint.