Subcontractors Charges | BIF Act Security | Construction.Lawyer

Introduction

Subcontractors' charges represent one of the most powerful yet chronically underutilised security mechanisms available to subcontractors operating within Queensland's construction industry. Established under the Building Industry Fairness (Security of Payment) Act 2017 (Qld) (the BIF Act), these statutory charges create a proprietary security interest over money owed by a principal to a contractor, thereby protecting a subcontractor's entitlement to payment in circumstances where the contractor may otherwise be unable or unwilling to discharge its debts. In an industry where payment chains can stretch across multiple tiers and insolvency remains a persistent risk, subcontractors' charges provide a critical layer of financial protection that every subcontractor should understand and, where appropriate, invoke. The mechanism is particularly valuable because it operates independently of the contractual relationship between the subcontractor and the contractor, creating a direct statutory assignment that gives the subcontractor a priority position in respect of funds held by the principal. At Construction.Lawyer, we have extensive experience advising subcontractors, contractors, and principals on all aspects of subcontractors' charges, from initial eligibility assessments through to enforcement proceedings. Our dual-qualified Engineer-Lawyers bring a practical understanding of construction project dynamics that complements our technical legal expertise, ensuring that our clients receive advice that is both legally rigorous and commercially astute.

How Subcontractors' Charges Work

A subcontractors' charge operates by creating a statutory charge over money that is payable, or prospectively payable, by a principal to a contractor under a construction contract. The charge attaches to these funds at the moment the charge notice is served in accordance with the requirements prescribed by the BIF Act, effectively creating a statutory assignment of the contractor's right to receive payment from the principal. This statutory assignment operates to the extent of the amount claimed by the subcontractor, meaning that the principal becomes obligated to pay the subcontractor directly rather than remitting those funds to the contractor. The charge therefore provides direct protection against the contractor's insolvency, as the charged funds are effectively quarantined from the contractor's general estate and made available to satisfy the subcontractor's claim. The notice requirements under the BIF Act are precise and must be strictly complied with — a charge notice must be in the approved form, contain the prescribed particulars, and be served on both the contractor and the principal within the statutory timeframes. Failure to comply with these procedural requirements can render a charge invalid, which is why we strongly recommend seeking legal advice before attempting to prepare and serve a charge notice. The charge operates in conjunction with the BIF Act's trust account provisions, which require head contractors to hold certain retention amounts and disputed funds on trust for subcontractors. While the trust account regime provides a separate form of protection, subcontractors' charges offer the additional advantage of creating a direct claim against the principal, thereby bypassing the contractor entirely in respect of the charged funds. This dual-layer protection framework reflects the legislative intent to secure payment for subcontractors at every level of the contractual chain. For principals, the service of a charge notice triggers important statutory obligations — the principal must not pay the contractor to the extent of the charged amount without first obtaining a court order or the subcontractor's written consent, and failure to comply can expose the principal to personal liability to the subcontractor. These consequences underscore the importance for principals and head contractors of obtaining prompt legal advice upon receiving a charge notice, as the timeframe for responding is limited and the consequences of non-compliance can be severe.

Our Services

At Construction.Lawyer, we provide comprehensive advice and representation in relation to all aspects of subcontractors' charges under the BIF Act. Our services begin with an assessment of charge eligibility and validity — we examine the subcontract, the payment claim history, the statutory timeframes, and the financial circumstances of the parties to determine whether a subcontractors' charge represents the most effective strategic option for securing payment. Where a charge is appropriate, we prepare and serve charge notices that comply strictly with the BIF Act's procedural requirements, ensuring that our clients' security interests are properly created and enforceable. We also advise principals and head contractors who have received charge notices, providing urgent strategic guidance on how to respond within the statutory timeframes and assessing whether the charge has been validly created or whether grounds exist to dispute it. In circumstances where a charge is defective or has been served improperly, we act promptly to defend our clients' interests and, where appropriate, seek court orders discharging the charge or permitting payment to proceed. For subcontractors whose charges have been properly created but remain unsatisfied, we provide end-to-end enforcement services, including proceedings to recover the charged funds directly from the principal. Our expertise also extends to trust account claims under the BIF Act, where subcontractors seek to recover funds that head contractors are required to hold on trust. Throughout every engagement, our dual-qualified Engineer-Lawyers bring a practical understanding of construction payment dynamics that enables us to provide advice tailored to the commercial realities of each project.

Contact Our Construction Law Experts

If you are a subcontractor seeking to secure your payment position, or a principal or head contractor who has received a charge notice and requires urgent advice, we encourage you to contact Construction.Lawyer without delay. The timeframes for creating and responding to subcontractors' charges are strictly enforced by the courts, and early intervention is essential to protecting your interests. Call us today on 1300 710 864 to speak with one of our dual-qualified Engineer-Lawyers about your subcontractors' charges matter. With offices in Brisbane, Sydney, Melbourne, Perth, and Darwin, we provide expert construction law advice to clients across Australia.