An ART tax appeal is a formal application to the Administrative Review Tribunal asking it to review an ATO objection decision. You must lodge the application within 60 days of receiving the objection decision. The Tribunal conducts a merits review, meaning it can substitute its own decision for the ATO’s, but you carry the burden of proving your position with concrete evidence.[1]
We have guided SMEs, sole traders, and high wealth individuals through every stage of this process. The Tribunal is not a place for vague arguments. It rewards preparation, precise evidence, and an adviser who understands how the ATO builds its case from the inside out.
What Is the Administrative Review Tribunal?
The Administrative Review Tribunal (ART) replaced the Administrative Appeals Tribunal (AAT) on 14 October 2024.[2] For tax disputes, it operates under Part IVC of the Taxation Administration Act 1953 (Cth) and the Administrative Review Tribunal Act 2024 (Cth). Matters are heard in the Taxation and Business Division.
The Tribunal’s role is to decide the “correct or preferable” decision on the merits. It stands in the Commissioner’s shoes and examines the dispute afresh, which is meaningfully different from a Federal Court appeal, where the court can only overturn a decision on a question of law.[3]
Most SME owners and founder-led businesses reach this stage after months of ATO correspondence and a failed objection. By the time the ART is in view, the stakes are rarely small. Understanding the process before you arrive is the difference between a structured case and an expensive scramble.
Before You Can Lodge an ART Tax Appeal
You cannot apply directly to the ART against an ATO assessment. The law requires you to exhaust the internal objection process first.[3]
That means lodging a formal objection with the ATO under section 14ZU of the Taxation Administration Act 1953 (Cth) and waiting for the ATO to issue its objection decision. Only once that decision is in hand does the ART pathway open.
If you have not yet lodged an objection, or you are still waiting for the outcome, read our guide on what to include in an ATO objection and what evidence changes the outcome at the objection stage. Getting the objection right matters, because the grounds you raise there generally define the scope of your ART review.
The 60-Day Deadline: Do Not Miss It
Under section 14ZZ of the Taxation Administration Act 1953 (Cth), you have 60 days from the date you are served with the objection decision to lodge your ART application.[3]
The ART has discretion to extend this period, but relying on that discretion is a risk no well-advised taxpayer should take. Diarise the deadline the moment the objection decision arrives.
One alternative exists at this fork: instead of the ART, you can appeal directly to the Federal Court. The Federal Court’s jurisdiction is confined to legal questions, with no power to conduct a full merits review. For most SMEs and privately owned groups disputing an income tax assessment, the ART offers a faster, less costly, and more appropriate forum.
How to Lodge Your Application for Review
The ART accepts applications online through its portal.[2] Your application must:
- Identify the objection decision you are challenging.
- State the grounds on which you seek review.
- Specify the alternative decision you believe the Tribunal should make.
Grounds are generally confined to those raised in the original objection unless the Tribunal grants leave to add new ones. This is why the objection itself must be thorough. A thin objection creates a thin ART case.
The ART charges an application fee for tax matters. Fee amounts are set by the Tribunal and are subject to change, so confirm the current fee schedule directly with the ART before lodging.[2]
The ART Process: What Happens After You Lodge
Case Conferences and Alternative Dispute Resolution
After lodgement, the ART typically convenes a case conference. This is a procedural step where the Tribunal scopes the issues in dispute, directs the parties on evidence, and sets a timetable.[1]
Many tax matters in the ART are resolved before a formal hearing through conciliation or mediation. The ATO is a party to this process, and settlement is genuinely possible. We have seen well-prepared cases resolve at this stage because the ATO’s own position becomes harder to sustain when the evidence is laid out clearly.
The Burden of Proof Is Yours
This is the point that surprises most SME owners and sole traders who reach the ART. The ATO does not need to prove you are wrong. You must prove your position is correct.[4]
That means concrete, contemporaneous evidence: bank statements, invoices, contracts, and records that existed at the time of the transactions in dispute. Witness statements and third-party records can fill gaps, but documents created after the fact carry far less weight. Complaints about how the ATO conducted its audit are a distraction at the ART. The Tribunal’s focus is on the correct tax outcome, not the ATO’s conduct.
This burden is why preparation matters more than advocacy at this stage. A case built on solid documentation is a case that can be won.
Formal Hearings
If conciliation or mediation does not resolve the matter, the dispute proceeds to a formal hearing before an ART Member, Senior Member, or Deputy President.[1] Witnesses can be called and examined. Both parties present their evidence and submissions.
The Tribunal then issues its decision. If the decision goes against you, a further appeal to the Federal Court is available within 28 days, but only on a question of law.[5]
What the ATO Knows That Most Advisers Do Not
The ATO does not approach disputes randomly. It builds cases systematically, using data matching, risk profiling, and internal review processes that most advisers have never seen from the inside. Understanding how a case is constructed by the ATO is a structural advantage at the ART, because you can anticipate the arguments before they are made.
Our founder, Nitin Saby, spent two decades inside the ATO as a Tax Counsel Network Law Interpretation Specialist and Tax Specialist Executive before becoming a Tax Principal at a top-10 CAANZ firm. That background shapes how we prepare ART cases: we know which arguments the ATO’s internal advisers find persuasive, and which ones they dismiss.
If you want to understand how the ATO selects disputes to pursue, read 5 ways the ATO selects who to audit and the six stages of a tax dispute. Knowing where you sit in that process changes how you prepare.
Penalties: A Separate but Connected Question
Even when the primary tax assessment is disputed, penalties are assessed separately. Showing that you relied on professional advice and acted with full disclosure can reduce or eliminate penalties, even if the Tribunal ultimately finds against you on the substantive issue.[4]
This matters for privately owned groups and high wealth individuals where the penalty exposure can rival the primary tax liability. Address it as a distinct question in your case preparation.
Director Penalty Notices and ART Appeals: A Warning
For company directors, an ATO assessment that goes uncontested can accelerate into a director penalty notice (DPN), making the company’s PAYG withholding or GST debt a personal liability.[1] The ART process does not automatically pause DPN action.
If you are a director dealing with both a disputed assessment and ATO debt pressure, read our analysis of DPNs and why timing matters and GST debt and insolvency. These are connected risks, and a coordinated response across both fronts is essential from the outset.
Start Your ART Appeal With the Right Preparation
An ART tax appeal is a structured, formal process with hard deadlines and a burden of proof that sits entirely with you. The 60-day window from your objection decision is fixed. The grounds you can argue are largely set by the objection you lodged. The evidence you bring must be contemporaneous and directly linked to the tax outcome you are seeking.
If your objection decision has arrived, or you are approaching that stage, contact Saby+Partners now to assess your position, identify the strongest grounds for review, and build the evidence file that the Tribunal will find persuasive.
Frequently Asked Questions
How do I appeal an ART decision?
If you disagree with the ART’s final decision, you can appeal to the Federal Court of Australia within 28 days of the decision. Federal Court appeals are confined to questions of law, meaning the court will not re-examine the facts. It will only consider whether the ART made a legal error in reaching its conclusion. Legal representation at this stage is essential.[5]
How long does it take to process an ART tax appeal?
Processing time varies significantly depending on the complexity of the dispute, the volume of evidence, and whether the matter resolves through alternative dispute resolution before a formal hearing. Simple matters can resolve within a few months through conciliation. Complex disputes involving large assessments or multiple issues can take twelve months or more to reach a hearing. The ART’s case conference process is designed to narrow issues and encourage early resolution.[1]
What happens after winning an AAT or ART case?
If the Tribunal decides in your favour, the ATO is required to give effect to that decision. This typically means the original assessment is reduced or set aside, and any tax paid in excess of the correct amount is refunded, usually with interest. Penalties associated with the original assessment are also revisited in light of the Tribunal’s findings. The ATO retains the right to appeal the Tribunal’s decision to the Federal Court on a question of law within 28 days.[2]
What is the difference between an ART review and a Federal Court appeal?
An ART review is a merits review: the Tribunal examines all the facts and can substitute its own decision for the ATO’s. A Federal Court appeal is confined to questions of law, meaning the court will not reconsider the factual findings. The ART is typically faster and less costly, making it the preferred first step for most SMEs and privately owned groups. The Federal Court is appropriate where the dispute turns on a point of statutory interpretation or legal principle.[3]
[1] Administrative Review Tribunal, “Taxation,” art.gov.au, https://www.art.gov.au/applying-review/taxation
[2] ACNC, “Review by the Administrative Review Tribunal (ART),” acnc.gov.au, https://www.acnc.gov.au/about/reviews-and-appeals/review-administrative-review-tribunal-art
[3] Quillio, “How to Lodge an ART Tax Appeal (Australia),” quillio.au, https://quillio.au/jurisdiction-guide/how-to-lodge-aat-tax-appeal/
[4] Aptum Legal, “Tax Disputes in the ART: What you really need to know,” aptumlegal.com.au, https://aptumlegal.com.au/blog/tax-disputes-in-the-art-what-you-really-need-to-know/
[5] Federal Court of Australia, “Appealing from a decision of the Administrative Review Tribunal,” fedcourt.gov.au, https://www.fedcourt.gov.au/law-and-practice/guides/appeals/from-other-bodies/art