Trade Licensing by State

Licensing requirements vary across Australian states and territories. This guide helps tradies and homeowners understand when a licence is required.

Disclaimer: This information is a general guide only and may not be current. Licensing laws change — always verify with your state's licensing authority before starting work. TradiHub does not provide legal advice.

Quick Comparison

StateLicence ThresholdAuthority
Queensland (QLD)$3,300QBCC — Queensland Building and Construction Commission
New South Wales (NSW)$5,000NSW Fair Trading
Victoria (VIC)$10,000VBA — Victorian Building Authority
South Australia (SA)$0 (all building work)Consumer and Business Services SA
Western Australia (WA)$20,000Building Commission WA / DMIRS
Tasmania (TAS)$20,000Consumer, Building and Occupational Services (CBOS)
Australian Capital Territory (ACT)$12,000Access Canberra
Northern Territory (NT)$12,000NT Building Practitioners Board

State-by-State Details

  • Building work over $3,300 (incl. GST) requires a QBCC licence
  • Electrical, plumbing, gas fitting, and drainage work always requires a licence regardless of value
  • Specialist trades (air conditioning, fire protection) have separate licence classes
  • Home warranty insurance required for residential work over $3,300

New South Wales (NSW)

NSW Fair Trading
Threshold: $5,000
  • Residential building work over $5,000 (incl. GST) requires a contractor licence
  • Specialist work (electrical, plumbing, gas) always requires a licence
  • Home Building Compensation Fund cover required for work over $20,000
  • Trade qualifications (Cert III) required even for work under $5,000
Threshold: $10,000
  • Domestic building work over $10,000 requires registration with the VBA
  • Domestic building insurance required for work over $16,000
  • Plumbing and electrical work always requires a licence
  • Written contract required for domestic work over $10,000
Threshold: $0 (all building work)
  • All building work requires a building work contractor licence — no minimum threshold
  • Plumbing, gas fitting, and electrical work requires separate licences
  • Building indemnity insurance required for all domestic work
  • Contractor must hold appropriate trade qualifications

Western Australia (WA)

Building Commission WA / DMIRS
Threshold: $20,000
  • Building work over $20,000 requires registration as a building contractor
  • Painting and decorating work over $20,000 requires a painter registration
  • Electrical and plumbing work always requires a licence
  • Home indemnity insurance required for work over $20,000
  • Building work over $20,000 requires an accredited builder licence
  • Electrical, plumbing, and gas fitting always requires a licence
  • Residential building work over $20,000 requires building warranty insurance
  • Owner-builders can apply for permits for their own residence

Australian Capital Territory (ACT)

Access Canberra
Threshold: $12,000
  • Building work over $12,000 requires a builder licence
  • Electrical, plumbing, and gas fitting always requires a licence
  • Residential building insurance required for work over $12,000
  • Written contracts required for work over $12,000

Northern Territory (NT)

NT Building Practitioners Board
Threshold: $12,000
  • Building work over $12,000 requires registration as a building contractor
  • Electrical and plumbing work always requires a licence
  • Home warranty insurance required for residential work over $12,000
  • Building permits required for structural work regardless of value

Trades That Always Require a Licence

Regardless of job value, the following trades require a licence in every state and territory:

Electrical work
Plumbing
Gas fitting
Drainage work
Air conditioning (refrigerant handling)
Asbestos removal

TradiHub displays licence information on tradie profiles so homeowners can make informed decisions.