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QBCC Compliance

Project Trust Accounts & QBCC Compliance: Managing Cashflow and Retention Obligations Under Scrutiny

Queensland Project Trust Accounts (PTAs) and Retention Trust Accounts (RTAs) ring-fence construction payments and carry strict criminal penalties for commingling. Here is how the rules work, where builders get caught, and how to stay audit-ready.

Brendan Bassa4 November 20268 min read

The statutory trust regime reshaping Queensland construction

The Queensland Project Trust Account (PTA) framework introduced under the Building Industry Fairness (Security of Payment) Act 2017 represents the most significant structural shift in Australian construction accounting in decades.

For head contractors and growing subcontractors, PTAs are no longer a distant legislative proposal. As the regime expands through its staged phases, it now captures private commercial projects valued at $10 million or more, government projects over $1 million, and an expanding net of commercial and residential head contracts.

Yet many builders treat PTAs as a minor administrative nuisance. In reality, a breach of PTA statutory trust laws carries criminal penalties, hefty civil fines, and immediate disciplinary action against your QBCC licence.

How the Project Trust Account framework functions

Under the statutory framework, a head contractor must establish distinct trust bank accounts for eligible contracts with an approved financial institution:

  1. Project Trust Account (PTA):

    • All progress payments received from the principal or developer must be deposited directly into this dedicated project trust account.
    • The money in this account does not belong to the builder's general trading pool. It is held on statutory trust for the subcontractors engaged on that specific project.
    • The head contractor cannot withdraw funds for general overhead, other projects, or personal profit until all subcontractor claims for that progress claim period are paid in full.
  2. Retention Trust Account (RTA):

    • If you withhold cash retentions from your subcontractors (or if a principal withholds cash retentions from you), those funds cannot sit in your ordinary trading account.
    • Cash retentions must be deposited into a separately registered Retention Trust Account within set statutory timeframes.
    • Retentions can only be released upon practical completion or expiry of the defects liability period in accordance with the subcontract.

The 4 critical accounting traps builders face with PTAs

Managing project trusts is not standard accounts payable. It demands forensic ledger segregation. The most common failures include:

1. Commingling Project Funds with General Working Capital

Historically, builders used cash from Job B to pay subcontractors on Job A. Under the PTA regime, this is an illegal breach of trust. Transferring money out of a Project Trust Account to cover company payroll or general overhead before subcontractor liabilities on that project are settled is a direct statutory offence.

2. Notice Failures and Strict Timelines

The QBCC requires specific statutory notices:

  • Notice of establishing a project trust account must be lodged with the QBCC and served on the principal and subcontractors within 5 business days.
  • Monthly trust account reconciliations must be completed within 15 business days after month-end and retained for statutory audits.

3. Discrepancies Between MFR Balance Sheets and Trust Registers

Trust balances held in PTAs cannot be counted as unrestricted general cash when calculating your Net Tangible Assets (NTA) for your QBCC licence renewals or category reviews. Unqualified bookkeepers routinely include restricted trust cash in the contractor’s liquid assets, resulting in a false NTA calculation that collapses under QBCC audit.

4. Specialised Trust Accounting Software Requirements

Manual spreadsheets fail QBCC compliance standards. Contractors must use software that maintains immutable audit trails, tracking deposits, transfers, and retention movements per project.

How PTAs impact your banking and working capital

Because project payments are ring-fenced, head contractors lose the ability to use customer deposits as float. This instantly increases the working capital required to operate your business.

To avoid cashflow paralysis:

  • Your trade credit terms with suppliers must be aligned with PTA disbursement schedules.
  • You must maintain independent working capital facilities (such as an overdraft or revolving credit) to fund corporate overheads without touching project trust funds.
  • Variations and payment schedules under the Security of Payment Act must be processed without administrative delay.

How regular catch-ups ensure PTA audit readiness

The QBCC conducts unannounced and targeted audits of project and retention trust accounts. When an audit letter arrives, you typically have 5 to 10 business days to provide full transaction ledgers, bank statements, and reconciliations.

At Level Up CA, our ongoing catch-up cadence protects your commercial standing:

  • We perform monthly PTA and RTA reconciliations in strict alignment with QBCC statutory formats.
  • We separate general trading cash from statutory trust funds on your management balance sheet, ensuring your NTA and current ratio reflect true unrestricted capital.
  • We ensure required notices to the QBCC and subcontractors are executed on time.

If your projects are crossing PTA thresholds or you need your trust account ledgers audited before the regulator requests them, call the direct line.

The Direct Line

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