Engagement with the ATO & State Revenue Office (SRO)

Experienced former ATO lawyers helping you navigate complexity and achieve commercial solutions to tax issues.

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Influence the ATO and SRO with the right information

The ATO and SRO are large revenue authorities comprising of different departments and teams, each with their own policies, practices and objectives. In disputes with these authorities, it can be difficult to understand the different types of engagement options and products that may be available to you.

Before a dispute gets to the audit, objection or litigation stages, there are a range of opportunities to engage with the ATO or SRO to effectively influence the achievement of your objective.

Aptum’s tax disputes leaders worked at the ATO for over a decade. We understand how revenue authorities work, how they make decisions in the early stages of disputes and the types of information required to make these decisions.

Aptum can help you gain clarity on your tax liability and avoid significant penalties by identifying the most effective pathways for engaging with the ATO and SRO.

We can do so on your behalf or work with your preferred accountant or tax agent.

How can Aptum help?

Before an assessment

Private rulings.

A formal process to seek advice from the ATO or SRO as to their view on how the tax law applies to you, or to a proposed transaction. Used to lock in certainty before you act. The strength of a private ruling application turns on how clearly the facts and the proposed treatment are presented.

Voluntary disclosure.

A disclosure to the ATO or SRO of a mistake, omission or claim in your tax return or other information provided. Voluntary disclosures made the right way and at the right time can substantially reduce penalty exposure and avoid escalation to audit.

During an audit or risk review

Risk reviews.

Comprehensive or specific risk reviews conducted by revenue authorities to determine whether they should proceed to a full audit of your affairs. The way you engage at this stage often determines whether the matter escalates.

Audit position paper response.

Where the ATO issues an audit position paper setting out their preliminary view, the response is your opportunity to influence the assessment before it is made. We prepare position paper responses that address the ATO’s analysis directly.

Various engagement options that are client and process-specific.

In-House Facilitation, Independent Review and Early Engagement. Each is a distinct ATO product with different eligibility, different timeframes, and a different team inside the ATO. We help you choose and run the right one for your matter.

After an assessment

Remission of interest or penalties.

Applications for remission of General Interest Charge (GIC), Shortfall Interest Charge (SIC) and tax shortfall penalties, where the law and the facts support it. Michael Buscema’s submission to the Inspector-General of Taxation on GIC remission sets out where current administrative practice is breaking down and how we frame applications to give them the best chance.

Release, compromise or waiver of your tax debt.

Applications for release from tax debt on serious hardship grounds (individuals only), compromise of a tax debt, or waiver in exceptional circumstances. The threshold is high and the framing of the application matters.

Deferral or pay your tax debt by instalments.

Negotiated payment arrangements with the ATO. Standard terms ask for 20 to 50 per cent of the debt upfront with the balance over 6 to 12 months, but with a well-prepared application, terms of up to three years are typically available.

What stage is your ATO or SRO matter at? 

Tax matters move through stages, and the right Aptum service depends on where yours is at right now.

I haven't been assessed yet but I have a tax issue I want to manage.

This is the right page. ATO and SRO engagement covers private rulings, voluntary disclosures, audit responses, In-House Facilitation, Independent Review and remission applications.

The ATO has issued an assessment I disagree with.

You need our Objections to Tax Assessments service. Objections are the formal way to challenge an assessment inside the ATO, with statutory deadlines.

The ATO has frozen my bank account, served a statutory demand, or started winding-up proceedings.

You need our ATO and SRO Debt Recovery service. Each recovery instrument has a defence and a window. The window is usually short.

I have received a Director Penalty Notice.

You need our Director Penalty Notices service. The 21-day window from the day the ATO posts the notice is statutory and short.

My objection has been disallowed or my matter is heading to court.

You need our Tax Litigation service. Tax litigation covers ART reviews, Federal Court appeals, judicial review and defences to ATO court proceedings.

What Aptum brings to your matters

Michael Buscema Portrait

Aptum’s tax disputes practice is led by Michael Buscema, our Practice Lead for Tax Disputes. For over 11 years prior to joining Aptum, Michael worked for the ATO and Commonwealth Treasury, holding a range of senior positions including acting Assistant Commissioner of the ATO. During his time at the ATO, Michael oversaw the ATO’s most complex, strategic recovery and engagement matters and was responsible for resolving multiple disputes valued over $100 million.

Nigel Evans Portrait

Michael is supported by Nigel Evans, Aptum’s Managing Director and Co-Founder. Before starting Aptum, Nigel spent 11 years at the commercial Victorian Bar, including work acting for the ATO in tax matters. Nigel is listed in Best Lawyers in Australia for Tax Law (2026) and recognised by Doyle’s Guide as a Leading Commercial Litigation and Dispute Resolution Lawyer.

That combination of ATO experience and Bar experience is not biography. It changes how we run your matter.

Engagement products live inside specific ATO teams

Private rulings sit with one team. Voluntary disclosures sit with another. In-House Facilitation has trained facilitators. Independent Review is a separate review function inside the ATO. Knowing which team handles which product, what they need to see, and how they decide is where insider experience matters most.

Recent ATO posture on engagement has tightened

GIC remission and penalty remission applications have become harder to get up in recent years, often through changes in administrative practice rather than published policy. We bring that posture into how we frame every remission application and every voluntary disclosure.

How Aptum works alongside your accountant or tax agent

You don’t need to fire your accountant to engage Aptum. Most of our engagement matters run as a coordinated team between Aptum, the client, and the client’s existing tax agent.

Your accountant knows your numbers. We know how the ATO weighs them. Together we typically produce a stronger application than either of us could on our own.

We tell clients honestly when a matter is well-suited to their accountant alone and doesn’t need a lawyer. We also tell them when the engagement has become legal in character and needs lawyer-led handling. Common signs that a matter has moved into lawyer-led territory:

  • The ATO has issued a position paper or a draft assessment
  • The dispute turns on a question of law rather than the numbers
  • A private ruling application involves a novel transaction
  • Penalties or General Interest Charge exposure is significant
  • The matter is heading toward audit objection or ART

The diagnostic call below is the cheapest way to find out which category your matter is in.

What makes Aptum different

  • Specialist expertise.

    All we do is litigate complex commercial and tax disputes.

  • Legal intelligence framework.

    Practical, ongoing risk assessment to focus on the essential.

  • Project management framework.

    Routine documented strategy through custom project management.

When it didn't work with a tax agent, Aptum helps an individual get the ATO to reconsider an AUD $1.5M deduction

Problem.
The trustee of a family trust was disallowed a substantial deduction (more than AUD $1.5M) on a lost investment. The trustee had initially failed in the objection process with representation from their tax agent. The trustee then made an application in the ART to argue that the absence of the trust resolution meant that their assessment should be reconsidered.

Aptum’s role.
Aptum was engaged because the application was failing. Aptum filed a further application that the ATO could still consider the trust resolution grounds, and due to resource constraints, did so without briefing counsel. This review application raised novel and complex questions regarding trust law and assessment of trust income. Aptum was responsible for conceiving of and advocating the arguments before the Tribunal.

Outcome.
The ATO subsequently entirely dropped its opposition to the application (after several years of resistance) and consented to the assessments being set aside in full.

What happens when you engage Aptum

Aptum runs every matter under our project management framework, with clear expectations on timing, cost and scope from the first call. Before you pay us anything, you get two points of contact, both free, so you know exactly where you stand. No surprises.

Step 1

Value conversation (free)

If the matter is one we can help with, we bring you in for a second conversation with the practice lead who would run your matter and your client experience coordinator. You get the time and expertise of a senior practitioner who has handled matters like yours, someone with real experience who can give you genuinely useful guidance on how to approach it. Real expertise before you have committed to anything, not a fake triage.

Step 2

Pathways assessment

Once you engage, you receive a documented strategy and a cost forecast aligned to the stages of your matter. For engagement matters that typically means a stage plan: information gathering, application drafting, ATO submission, response handling, and (if needed) escalation or settlement.

Step 3

Execution

Depending on the engagement product, this is the phase for drafting and filing the application, responding to ATO information requests, attending In-House Facilitation or Independent Review meetings, negotiating remission or payment terms, or running the matter through to outcome. Routine documented strategy. Regular communications. A relentless focus on the essential issues. Project management isn’t a bolt-on at Aptum, it’s a discipline embedded in every part of our practice.

How we manage cost

Engagement matters cover a wide cost range, from a focused private ruling application to a multi-month audit response with In-House Facilitation. What we commit to is one of our five client service promises: clear expectations as to the timing, costs and scope of our engagement, and updating those expectations as early as possible if anything changes.

Diagnostic call.

A 15-minute call to work out exactly what engagement product or pathway is right for your matter.

Estimate and scope.

Once engaged, you receive a documented strategy and a cost forecast aligned to the stages of your matter. Stage-based budgets, regular reporting, and any scope changes documented and agreed in writing. Where a matter has a tight, defined scope (a single private ruling application, a voluntary disclosure within a confined timeframe, an audit position paper response) we can give you a fixed-price option.

Investment mindset.

Aptum approaches every matter with an investment mindset: the most practical outcome in the shortest possible time, at the least possible cost, with the biggest possible return.

Recent matter outcomes

Two individuals pursued for AUD $17.8M Director Penalty Liability achieve significant debt reduction

Aptum was engaged to dispute the application, and caused the ATO to withdraw the summary judgment application. Subsequently, orders were made for the ATO to pay Aptum’s clients’ costs of the summary judgment application.

Outcome: The ATO subsequently entered into settlement negotiations, with Aptum negotiating an outcome for the clients that represented a significant reduction in the original tax liability.

An accomplished farmer has his property protected in a family trusts dispute

Before Aptum was engaged, our client was effectively being ignored by the other parties to the divorce proceedings. Using specialist corporate trust experience, Aptum’s role became to intervene in the proceedings on our client’s behalf so he could protect his interest in the trust.

Outcome: A negotiated outcome to this matter was achieved prior to trial that properly recognised and protected our client’s interest in the property.

An investor forced from a business gets a fairer valuation of the share price

Aptum effectively reopened the valuation to provide our client with a voice in the process of determining the value of shares.

Outcome: Aptum worked closely with the client and a litigation funder to achieve a successful outcome within 12 months of issuing proceedings. Aptum ensured the director received a fair amount based on their interest in the business.

What clients say

“Very grateful to Michael and the whole team at Aptum for everything they did on my case and for all their guidance and support to achieve the best outcome. Highly recommend this fantastic team. Thank you so much!”

- Tania

“Aptum is always prepared to assist substantively on cases, including strategic input, technical research, drafting and liaising with other parties. I greatly appreciate Aptum’s expertise and capacity to work on cases.”

- Anonymous

“Easy to work with, efficient and competent. The firm has implemented project management and billing processes which are unique and market leading.”

- Collated independently by Legal 500 research team

Frequently Asked Questions

  • What is a private ruling and when should I apply for one?

    A private ruling is a formal written statement from the ATO setting out how the tax law applies to your specific facts. It is binding on the ATO if you act in accordance with the facts you describe. Private rulings are most useful where the law is unclear, the transaction is novel, the amounts at stake are significant, or you need certainty before you act. The strength of the application turns on how clearly the facts and the proposed treatment are presented. We routinely prepare private ruling applications for taxpayers and tax agents.

  • When should I make a voluntary disclosure?

    Voluntary disclosures are most effective when made before the ATO becomes aware of the issue, before an audit or risk review starts, and before any formal recovery action. The earlier the disclosure, the larger the penalty remission usually available. The ATO publishes a graduated penalty scheme that gives meaningful reductions for voluntary disclosure made before audit and smaller reductions for disclosure made during audit. We tell clients honestly when a voluntary disclosure is the right move and when it isn’t.

  • What's the difference between a risk review and an audit?

    A risk review is an information-gathering exercise. The ATO is deciding whether to escalate to an audit. An audit is a formal compliance review with statutory powers, including the power to require information and documents under penalty. The way you engage at risk-review stage often determines whether the matter escalates to audit at all.

  • What is an audit position paper and how do I respond to one?

    An audit position paper is the ATO’s preliminary view of how the tax law applies to your facts, written before assessment. Your response is your opportunity to influence the ATO’s final position before an assessment is made. A strong response addresses the ATO’s analysis directly, presents the facts in the most favourable light supported by the law, and (where appropriate) corrects factual or legal errors in the position paper. A weak response is treated as confirmation of the ATO’s view.

  • What is In-House Facilitation?

    In-House Facilitation is an ATO program where a trained ATO facilitator (different from the audit team) helps the parties resolve a dispute during or after an audit. It is most useful where there are factual disputes, multiple issues that can be narrowed, or a need to find a commercial pathway forward. It does not bind the ATO to a particular outcome, but the discussions held there often shape what the ATO does next.

  • What is Independent Review and how does it differ from an objection?

    Independent Review is an internal ATO process where a separate area of the ATO (not the audit team) reviews the audit team’s position before an assessment is made. It is available for large business, public groups, and increasingly for some private groups. An objection comes after an assessment and is a formal statutory process under Part IVC of the Taxation Administration Act 1953. Independent Review is typically faster, less formal, and lower cost than an objection. Where it is available, it is usually worth pursuing.

  • Can I engage with the ATO myself, or do I need a lawyer?

    You can engage with the ATO yourself or through your accountant. Many engagement matters don’t need a lawyer at all. The matters that do need a lawyer are typically those where the dispute turns on a question of law, where the ATO has formed a position that requires legal argument to dislodge, where penalties or General Interest Charge exposure is significant, or where the matter is at risk of escalating to objection or ART. The diagnostic call sorts that out in 15 minutes.

  • Should my accountant or my lawyer handle ATO engagement?

    Both, usually. Most of our engagement matters run as a coordinated team between Aptum, the client, and the client’s existing tax agent. Your accountant knows your numbers. We know how the ATO weighs them. We tell clients honestly when a matter is well-suited to their accountant alone, and when it has become legal in character and needs lawyer-led handling.

  • Will the ATO remit my General Interest Charge?

    Sometimes. GIC remission applications turn on whether the circumstances of late payment were outside the taxpayer’s control, whether it would be fair and reasonable to remit, whether there are special circumstances, or whether it is otherwise appropriate to remit. Recent administrative practice has tightened. Michael Buscema’s published submission to the Inspector-General of Taxation sets out where the discretion is currently breaking down for taxpayers and how we frame applications.

  • How long does an ATO engagement matter take?

    It depends on the product. Private ruling applications typically take 28 to 56 days for the ATO to consider, though complex applications can take longer. Voluntary disclosures are usually processed within a few months. Audit response and In-House Facilitation timelines vary widely depending on the complexity of the matter. We give you a forecast timeline at the pathways assessment stage and update it as the matter progresses.

Further Reading on Aptum

Aptum publishes regularly on ATO engagement, audit response, objections and tax administration.

How Aggregated Turnover Errors Trigger R&D Disputes with the ATO

How Aggregated Turnover Errors Trigger R&D Disputes with the ATO

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What Is a 50/50 Arrangement with the ATO and How Does It Work in Practice?

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Learn how ATO shortfall penalties work, what the 25/50/75% rates mean for your business, and how to seek remission or reduction of tax penalties through proper disclosure.

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Yes, you can object to most ATO private rulings, but whether you should depends on timing, facts, and your litigation strategy. Here’s what business owners need to know.

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How Long Can an ATO Audit Take, And Is There a Time Limit?

ATO audits can run from weeks to years. Understand the legal time limits, what drives audit duration, and how to keep the process contained and proportionate.

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