PCG 2021/4 issues often arise when a professional firm’s profit allocation does not match commercial reality. Before an ATO review, the best approach is to identify what drives your risk rating, fix weak documentation, and align remuneration and distributions with genuine value creation.
Key Takeaways
- The ATO is focused on substance, not just the structure shown on paper.
- Underpaying the principal practitioner is one of the fastest ways to increase risk.
- Poor documentation can shift a defensible arrangement into a higher risk zone.
- Fixes should be practical and evidence-based, not backdated paperwork.
- An early review can reduce audit risk and improve your long-term compliance position.
Why PCG 2021/4 Mistakes Happen
Most PCG 2021/4 problems are not caused by one single action. They usually come from a series of small decisions over time, such as keeping an old structure, relying on assumptions, or distributing profits without revisiting how the firm operates today.
In 2025, the ATO continues to use PCG 2021/4 as a framework to identify which professional firms are most likely to warrant closer attention. If you have not already read the overview of how the guideline works, start here: PCG 2021/4 and professional firm profit allocations in 2025.
Mistake 1: Underpaying the Principal Practitioner
One of the clearest red flags is where the principal practitioner receives remuneration that is not consistent with their role in generating the firm’s income.
Why the ATO cares
The ATO expects that the person doing the work, controlling the client relationship, and carrying key business risk receives an appropriate share of profits.
How to fix it
- Benchmark remuneration to market rates for the role
- Document why the remuneration is appropriate
- Where a business pays a lower salary, ensure there is strong evidence of other commercial factors such as reinvestment, working capital needs, or genuine non-principal value creation
Mistake 2: Profit Splitting Without Evidence of Value Creation
Allocating profits to family members or entities can be commercially legitimate, but only where there is evidence that those parties contribute value or bear risk.
Common examples
- Family members listed as beneficiaries but performing minimal work
- Entities receiving distributions but not funding operations or taking on liabilities
- Service or management fees charged without clear deliverables
How to fix it
- Maintain role descriptions and work evidence where individuals are paid or allocated profits
- Show commercial basis for distributions to entities, including capital contributions, risk assumption or business functions
- Align the firm’s operational reality with the financial outcomes shown in tax reporting
Mistake 3: Treating the PCG 2021/4 Risk Assessment as a One-Time Exercise
Some firms do a quick assessment once and never revisit it. That can lead to risk creep as the business grows, changes direction, hires staff, or adds new revenue streams.
How to fix it
- Treat the PCG 2021/4 assessment as an annual governance task
- Re-run the assessment when the firm undergoes major change, such as adding a new partner, expanding services, or restructuring
- Document why the current structure still fits the current business model
Mistake 4: Weak or Missing Documentation
Even a commercially defensible arrangement can become risky if it is not supported by records. The ATO expects contemporaneous documents, not documents created after the fact because someone is worried about a review.
What the ATO expects to see
- Employment and service agreements
- Trust deeds and trustee resolutions
- Evidence of management roles and operational control
- Financial statements that align with the story being told
- Clear explanation of why entities receive profits
How to fix it
- Create a simple evidence pack and update it annually
- Ensure trust minutes and distribution resolutions are prepared properly and on time
- Do not rely on backdating as a solution. It tends to increase risk, not reduce it
Mistake 5: Ignoring Division 7A Flow-On Risks
PCG 2021/4 is often linked to Division 7A issues in practice, especially where firm profits are retained in companies and later accessed by individuals.
If distributions are flowing into bucket companies and funds are being used elsewhere in the group, Division 7A exposure can arise through loans, payments, or financial accommodation.
If your structure includes trusts and corporate beneficiaries, it is worth understanding how UPEs can create Division 7A risk here: Division 7A UPEs and corporate beneficiaries.
How to fix it
- Track how profits move through the group, not just where they land on paper
- Ensure loans are properly documented and compliant where required
- Avoid circular funding arrangements that are difficult to explain commercially
Mistake 6: Overlooking Part IVA Exposure
Even if you think an arrangement technically fits within the rules, the ATO may apply Part IVA if the dominant purpose appears to be gaining a tax benefit.
Risk increases when:
- remuneration is artificially low
- there is no clear commercial driver for the structure
- profits are shifted away from the income-generating individual
- the arrangement lacks real-world substance
How to fix it
- Document commercial reasons for the structure, not just tax outcomes
- Be consistent in how profits, control and responsibilities align
- Avoid aggressive approaches that rely on technical loopholes rather than business reality
A Practical “Before Review” Checklist
If you want to reduce risk before an ATO review, focus on practical fixes that improve substance and evidence.
- Review remuneration against market benchmarks
- Confirm distributions align with commercial roles and capital at risk
- Update trust minutes and documentation practices
- Map cash flow across entities to identify Division 7A triggers
- Create a concise explanation of the structure and why it exists
- Run an annual governance review and keep records of decisions
When to Get Advice
If you are unsure whether your firm sits in a higher risk zone, or your structure has grown complex over time, it is better to review early than wait for an ATO review letter.
Where professional firms also provide services to broader client bases, it can be helpful to review how your operational structure is supported by your reporting processes and bookkeeping controls. For many firms, improving the clarity of systems is part of lowering risk, which ties into areas like financial reporting.
Next Step: Review Your Firm’s Profit Allocation Risk
PCG 2021/4 is not about avoiding legitimate structures. It is about ensuring profit allocation matches reality and is supported by evidence. A proactive review can reduce risk, strengthen documentation, and improve confidence if the ATO ever asks questions.