PCG 2021/4 Professional Firm Profit Allocation: An Accountant Guide for Australia 2026

For accountants, lawyers, architects, engineers, and other professionals operating through a firm structure, the way profits are allocated between the individual practitioner and associated entities is one of the most scrutinised areas of Australian tax law. The ATO's Practical Compliance Guideline PCG 2021/4 sets out the compliance framework that governs these arrangements — and as of 2026, the ATO has moved firmly into active enforcement mode.

What Is PCG 2021/4?

PCG 2021/4 is the ATO's compliance approach for Individual Professional Practitioners (IPPs) — professionals who provide services through a firm and have the ability to influence how the firm's profits are allocated. The guideline applies to a wide range of professions, including accounting, legal, medical, engineering, and consulting practices.

The core concern the ATO is addressing is the use of firm structures to divert income that would otherwise be taxed in the hands of the individual practitioner to associated entities — such as trusts, companies, or family members — at lower tax rates. PCG 2021/4 provides a structured framework for assessing the risk level of these arrangements.

Importantly, the guideline does not prohibit profit-sharing arrangements. Rather, it provides a risk-based framework that allows practitioners to self-assess their compliance position and understand the likelihood of ATO scrutiny.

The Two Mandatory Gateways

Before an IPP can use the risk assessment framework in PCG 2021/4, their arrangement must pass two mandatory gateways. Failing either gateway means the arrangement is considered high risk and will attract ATO attention regardless of other factors.

Gateway 1: Commercial Rationale

The arrangement must have a genuine commercial basis. The ATO will view an arrangement as lacking commercial rationale if it appears overly complex, exists primarily to secure a tax advantage, operates on non-arm's length terms, or shows a significant gap between its legal form and economic substance.

A common example of a Gateway 1 failure is a structure where a professional's spouse or adult children receive substantial profit distributions from the firm despite having no meaningful involvement in the business.

Gateway 2: Absence of High-Risk Features

The arrangement must not contain specific high-risk features identified by the ATO. These include financing arrangements involving non-arm's length transactions, structures that exploit differences between accounting standards and tax law, arrangements materially different from the principles established in the Everett and Galland cases, and the use of multiple classes of shares or units by non-equity holders.

If an arrangement fails Gateway 2, the ATO considers it to present a high risk of non-compliance and will apply heightened scrutiny.

The Three-Factor Risk Assessment

Arrangements that pass both gateways can then be self-assessed using three risk factors. Each factor is scored, and the aggregate score determines whether the arrangement falls into the green (low risk), amber (moderate risk), or red (high risk) zone.

• Factor 1 — Profit entitlement proportion: What percentage of the firm group's profit is returned in the hands of the IPP? Higher proportions returned to the individual score lower risk.
• Factor 2 — Effective tax rate: What is the total effective tax rate across the IPP and all associated entities receiving income from the firm? Higher effective tax rates score lower risk.
• Factor 3 — Remuneration benchmark: Is the remuneration returned by the IPP comparable to what an arm's length employee in a similar role would earn? Remuneration significantly below commercial benchmarks scores higher risk.

Green zone arrangements receive minimal ATO compliance attention. Amber zone arrangements may attract some scrutiny. Red zone arrangements are considered high risk and are likely to be subject to ATO review or audit.

Common Mistakes and Red Flags

The ATO has identified several recurring issues in professional firm profit allocation arrangements. An experienced accountant can help practitioners identify and address these before they attract ATO attention.

• Inadequate documentation: Failing to maintain contemporaneous records of how the risk assessment was conducted and why the arrangement was considered commercially rational
• Stale assessments: Conducting a one-off assessment and not revisiting it when the firm's structure, profitability, or the practitioner's role changes
• Ignoring the gateway tests: Proceeding directly to the risk scoring without first confirming the arrangement passes both gateways
• Underestimating remuneration benchmarks: Setting the IPP's salary component too low relative to what a comparable employee would earn in the market
• Cascading audit risk: An ATO audit of one partner in a firm can trigger wider scrutiny of the entire firm's profit allocation arrangements

Australian Regulatory Context

PCG 2021/4 operates within the broader framework of Australia's anti-avoidance provisions, including Part IVA of the Income Tax Assessment Act 1936. The ATO has made clear that arrangements which fail the PCG 2021/4 framework may be subject to Part IVA scrutiny, which can result in the cancellation of tax benefits and the imposition of significant penalties.

The Australian Taxation Office (ATO) concluded its transitional period for PCG 2021/4 compliance and is now actively reviewing arrangements for the year ending 30 June 2025. The ATO has signalled that it will focus on high-risk arrangements, particularly those in the red zone or that fail the gateway tests.

Registered tax agents and accountants who advise professional firms on profit allocation must be registered with the Tax Practitioners Board (TPB) and are subject to the TPB's Code of Professional Conduct. This includes obligations to act with integrity, maintain competence, and advise clients of their legal obligations — even when those obligations are inconvenient.

The ATO also uses data from tax returns, STP reporting, and third-party sources to identify professional firms whose profit allocation arrangements appear inconsistent with PCG 2021/4. Firms that have not reviewed their arrangements since the guideline was introduced in 2021 face significant exposure.

Checklist: Reviewing Your Firm's PCG 2021/4 Position

The following checklist can help professional firm principals and their accountants assess whether their profit allocation arrangements are compliant with PCG 2021/4:

• Has the arrangement been assessed against both Gateway 1 (commercial rationale) and Gateway 2 (no high-risk features)?
• Is there contemporaneous documentation supporting the commercial rationale for the structure?
• Has the three-factor risk assessment been completed for the current financial year?
• Is the IPP's remuneration consistent with commercial benchmarks for their role and experience?
• Has the effective tax rate across all associated entities been calculated and documented?
• Has the arrangement been reviewed following any changes to the firm's structure, ownership, or profitability?
• Are all associated entities — trusts, companies, family members — receiving distributions that can be commercially justified?
• Has the firm's accountant confirmed the arrangement does not trigger Part IVA concerns?

How MyMoney® Can Help

PCG 2021/4 compliance requires specialist knowledge of both the ATO's guidelines and the commercial realities of professional firm structures. An experienced accountant can conduct a thorough review of your firm's profit allocation arrangements, prepare the necessary documentation, and advise on any restructuring required to move from a red or amber zone to a green zone position.

MyMoney® connects professional firm principals with qualified accountants who have deep expertise in ATO compliance, profit allocation, and professional firm structures. Post a brief describing your firm's structure and compliance needs, and receive tailored proposals from experienced professionals. You can also browse our accountant directory to compare credentials and client reviews before engaging.

With the ATO now in active enforcement mode on PCG 2021/4, there has never been a more important time to ensure your professional firm's profit allocation arrangements are fully documented, commercially justified, and compliant.