Why we conduct audits 

Audits are about maintaining the integrity of the plumbing profession. By verifying that notifiable work is correctly documented, we can:

• provide in-person support and guidance to licensees
• catch problems early to avoid costly issues
• ensure work meets safety and compliance standards. 

What to expect if you're selected 

If you’re selected for an audit, you’ll be asked to provide recent invoices for plumbing work. To make the process smooth and efficient, it’s important to make sure your invoices: 

• are clear and legible (no blurry scans or photos)
• include specific details about the work performed
• list the correct site address and building reference (if applicable). 

Once your documents are submitted, a member of the QBCC audit team will review them and get in touch if anything further is needed. 

Tools to help you stay compliant 

To help you stay on top of your obligations, the QBCC website offers a range of practical tools and resources: 

• a breakdown of what counts as notifiable work
• an interactive checker to see if your job needs a Form 4
• tips on how to lodge your Form 4/4A correctly. 

These resources are designed to make compliance easier and more accessible, so you can focus on doing great work. 

We’re for supporting licensed professionals, and you can help 

Unlicensed contracting is against the law and undermines the time, training, and investment that licensed plumbers put in to do things the right way. It diverts work away from legitimately qualified professionals and puts public safety at risk.

That’s why we’ve also made it easier to report wrongdoing through our updated complaints form.

If you’ve seen something that doesn’t sit right, you can raise a concern without revealing your identity. And while we’ll do our best to act on anonymous reports, our investigations team may need to follow up for additional details, some of which could be identifiable. Rest assured, we’ll maintain strict confidentiality throughout the process.

Have something to report? Submit your plumbing or drainage complaint here

Let’s work together to keep our high standards and protect the trade for all the future plumbers out there. 

Whether you’re a licensed plumber, fire protection specialist, drainer, or work in air-conditioning and mechanical services, staying informed about industry developments and regulatory changes is crucial.

STC actively collaborates with key industry regulators like the Queensland Building and Construction Commission (QBCC) and local councils to ensure the voice of service trades professionals is heard. Through these partnerships, STC provides direct access to important updates on compliance, licensing, and emerging best practices.

By engaging with STC, trades people have the opportunity to:

Gain insights from respected industry leaders and regulatory experts

Participate in meaningful dialogue that shapes the future of the sector

Network and build connections with peers and stakeholders across the industry

STC’s commitment to open communication and advocacy makes it a trusted hub for anyone working within service trades, fostering an environment where collaboration and continuous learning thrive.