Construction Industry: Why Subcontractor Verification Is Harder — and More Important

Construction has Australia's highest rate of corporate insolvency. It has the highest incidence of phoenix fraud. It has the most complex subcontracting chains — a tier-1 contractor may have three layers of sub-contractors between them and the workers on site. And it has some of the most consequential consequences for getting supplier verification wrong: security of payment disputes, lien risks, project delays, and in the worst cases, liability for wage theft or unlicensed work.

The standard "is this ABN active?" check is not enough. This guide covers what construction procurement teams and project managers should be running, and why each check matters in a building-industry context specifically.

1. Contractor Licence Verification (QBCC and State Equivalents)

This is the check that's most specific to construction — and the one most often skipped.

In Queensland, any contractor who carries out or supervises building work above $3,300 must hold a Queensland Building and Construction Commission (QBCC) licence. There are over 40 licence categories covering builders, trade contractors (electricians, plumbers, painters, structural engineers), and project managers. The licence number, scope, and status are all publicly searchable.

In New South Wales, residential building work and specialist trades are licensed through NSW Fair Trading. Commercial work above certain thresholds requires a contractor licence. The register is similarly public.

Victoria, South Australia, Western Australia, and the ACT all have equivalent licensing regimes. The coverage and thresholds differ, but the principle is consistent: certain building work requires a licence, and operating without one exposes the contractor — and potentially the principal — to prosecution and liability for defective work.

What to check:

• Does the licence scope cover the work being contracted?
• Is the licence current (not expired or suspended)?
• Does the ABN on the contract match the ABN on the licence registration?
• For subcontractors: is the individual nominated as licence holder still with the company?

The last point matters more than people expect. A company licence in Queensland is attached to a "Nominee Supervisor" — a qualified individual who must be an employee or director of the company. If that person leaves and the company doesn't update the QBCC record, the licence remains technically valid but operationally compromised. Work done without a qualified nominee supervisor in place can be subject to rectification orders.

2. Super Guarantee Non-Compliance

RISK VERIFICATION MATRIX

Risk Type	Description	Risk Level
QBCC Licensing	Lack of valid license	High
SG Non-Compliance	Super guarantee issues	Medium
Phoenix Patterns	Insolvency and rebirth	High
Labor-Hire Risk	Unverified labor hire	Medium
ABN Verification	Invalid or fake ABN	Low

The ATO's SG non-compliance register names employers who have been issued a Superannuation Guarantee Direction and failed to comply. In construction, this is a particularly significant signal for two reasons:

Labour-hire chain liability: The Superannuation Guarantee (Administration) Act 1992 creates joint liability in certain labour-hire arrangements. If you engage a labour-hire subcontractor who is not paying SG, and you are the "employer" of those workers in a relevant sense, you may face liability for the unpaid amounts. The ATO has been pursuing this actively since 2019.

Phoenix indicator: SG non-compliance at significant scale is one of the most reliable indicators of an entity in the pre-phoenix stage. A company that has stopped paying super to its workers has typically already stopped paying the ATO's PAYG withholding and is in serious financial distress. The insolvency event — and the re-emergence under a new ABN — often follows within 6–18 months.

The register is updated quarterly. A subcontractor who was clean six months ago may have acquired a notice since. For multi-year relationships on large projects, re-verification at each contract milestone is worth the five minutes it takes.

3. Phoenix Pattern Detection

The construction industry has the highest rate of phoenix activity of any sector in Australia. The Treasury's estimates have put the cost to the economy at over A$5 billion per year, with a significant portion of that falling on sub-subcontractors, suppliers, and employees who don't get paid when the phoenix occurs.

The construction phoenix pattern has some industry-specific characteristics:

• Project-based timing: the collapse often happens immediately after project completion, when progress claims are exhausted and final retention is the only money outstanding. The contractor claims retentions, goes into voluntary administration, and the sub-contractors holding retention aren't paid.
• QBCC history: a contractor with multiple past QBCC licence applications from different company ABNs, all held by the same individual, is showing the pattern even if the current entity looks clean.
• Supplier credit accounts: material suppliers who have been burned by the same principal showing up under a new ABN are often the first to notice — and often willing to tell you if asked.

The structural indicators are the same as for phoenix fraud generally — domain registration date vs ABN date, director history across entities, related deregistered companies — but in construction, the QBCC licence history adds another dimension. A Nominee Supervisor who has been the nominee for five companies in ten years, three of which are now deregistered with unpaid debts, is a pattern worth investigating.

4. ASIC Insolvency and Company Status

External administration events in construction tend to cascade: when a tier-1 or tier-2 contractor goes under, the sub-contractors who were owed money on the project are the last to know and the last to be paid. The Security of Payment Act provides some protection via payment schedules and adjudication, but only if you're actively monitoring and responding.

Key checks:

• Company status: "Registered" vs "Deregistered" is the first gate. Contracting with a deregistered entity creates unenforceability problems that are expensive to remedy.
• External administration status: ASIC's insolvency register. If an administrator has been appointed, your existing contract may need to be novated, varied, or terminated depending on its terms.
• Related entities: large construction groups often operate through multiple related entities. An adverse status on one entity in the group may foreshadow problems for the contracting entity.

5. Fair Work Compliance in Labour-Hire

Construction sites with multiple subcontractors are among the highest-risk environments for wage theft and underpayment of workers. The Fair Work Act's sham contracting provisions, and the supply chain liability provisions added in 2024, mean that principal contractors can face regulatory action for the practices of their subcontractors in some circumstances.

The Fair Work Ombudsman publishes compliance notices and court-enforceable undertakings. For subcontractors who are managing significant numbers of workers — concreters, form-workers, labour hire companies — an active FWO notice is a significant red flag that should go to a contract manager, not just into a file.

6. PPSR (Personal Property Securities Register)

The PPSR isn't a fraud check — it's a security interest register. But in construction, it's relevant for two reasons:

Retention of title: suppliers of materials often register PPSR security interests covering goods delivered before payment. If a contractor goes insolvent, those PPSR interests may give the supplier priority over the administrator's distribution. Understanding your subcontractor's PPSR position can tell you something about how exposed their suppliers are — and therefore how fragile their supply chain is.

Your own security: if you're a subcontractor, registering a PPSR interest over goods you supply on a retention-of-title basis is a legitimate protection against upstream insolvency. This is separate from verification but worth noting in a construction context.

Building a Verification Checklist for Construction Subcontractors

For each new subcontractor, in roughly this order:

1. ABN check: active, matches entity name on contract, GST registered (if charging GST).
2. ASIC company status: Registered, not under external administration.
3. Trade licence: QBCC (QLD), NSW Fair Trading (NSW), or relevant state equivalent — scope covers the work, current status, nominee supervisor identified.
4. Director check: ASIC banning register for each director; AFSA for personal insolvency against directors or sole trader principals.
5. ATO SG register: not named in current quarter's publication.
6. FWO compliance notices: search entity name and director names.
7. ASIC insolvency: no external administration, voluntary winding up, or court-ordered winding up.
8. Phoenix indicators: check ABN age vs domain age; search director name for related deregistered entities.

For a labour-hire subcontractor, add:

• Check whether they hold a Labour Hire Authority licence in Victoria (required for Victorian labour hire operators under the Labour Hire Licensing Act 2018).
• Review FWO compliance history more carefully — underpayment is more common in labour hire than in direct contracting.

For ongoing monitoring during a project:

• Re-run ASIC company status and insolvency checks at each major milestone (contract execution, practical completion, final claim).
• Re-run SG compliance check quarterly.

---

One More Thing: Security of Payment

The Security of Payment Acts (state-based, but consistent in principle) give subcontractors a fast-track mechanism to enforce payment claims — payment schedules, adjudication, and statutory demands. These rights apply even if the contract says otherwise.

This is relevant to verification because: if your subcontractor has outstanding adjudication determinations against them (i.e., they've been ordered to pay a sub-subcontractor and haven't), that's a financial distress indicator that won't show up on a credit report but may show up in an ASIC court action search. It also means the sub-subcontractors below them may soon be looking to you for payment — and in some states and circumstances, they can make claims directly against the principal under trust legislation.

Construction supply chain risk management is, ultimately, about understanding who is behind your subcontractor and how financially healthy the whole chain is. Verification is the first step — knowing who you're dealing with before you're dealing with the consequences.

---

Gumshoe checks QBCC and NSW Fair Trading contractor licences as part of its standard verification — along with ASIC company status, insolvency, director bans, SG compliance, and Fair Work notices. See the full check list, or verify a subcontractor now.

Uncommon Insights

Insolvency rates in the construction industry are exacerbated by the prevalence of phoenix activity, which can be masked by superficial ABN checks. In reality, the ATO's Phoenix Taskforce, which includes ASIC, the Australian Federal Police, and other agencies, has identified that 30% of phoenix companies are reincarnated within 12 months, often with the same directors or controllers. This means that a subcontractor's ABN may be active, but their underlying business may be a phoenix entity, exposing the principal to significant financial and reputational risks.

The Australian Securities and Investments Commission (ASIC) has identified that labour-hire firms are disproportionately represented in phoenix activity, with many phoenix operators using labour-hire structures to avoid detection. This highlights the need for construction procurement teams to scrutinise labour-hire arrangements more closely, verifying the labour-hire provider's compliance with ASIC's requirements for registration and the Fair Work Ombudsman's requirements for labour-hire licensing.

Section 596AB of the Corporations Act 2001 (Cth) requires companies to keep written records of their dealings with related entities, including labour-hire firms. However, ASIC's experience is that many companies in the construction industry fail to maintain adequate records, making it difficult to detect phoenix activity or other forms of non-compliance. By scrutinising a subcontractor's records and ensuring they are compliant with section 596AB, construction procurement teams can reduce their exposure to phoenix risks.

Under section 588G of the Corporations Act 2001 (Cth), directors can be personally liable for debts incurred by a company while it is insolvent. In the construction industry, this means that directors of subcontracting companies may be personally liable for unpaid wages or other debts if their company is found to be insolvent. By verifying a subcontractor's solvency and ensuring they have adequate insurance coverage, construction procurement teams can mitigate the risks associated with subcontractor insolvency and potential director liability.