1. Identify the decision you are challenging
Start with the notice or decision itself. Different decisions attract different objection rights and time limits. Sometimes the better path is an amendment request or a response during an audit rather than a formal objection.
2. Calculate the deadline immediately
The ATO states that objection time limits vary, including some 60-day periods. Do not assume the general amendment period and objection period are the same. Record the date of service or issue, check the applicable statutory provision and deal with any extension request explicitly if the objection is late.
3. Frame grounds that can survive scrutiny
Each ground should identify the legal or factual error and state the taxpayer’s position. Avoid vague assertions. If valuation, residency, deductibility, characterisation or a specific integrity provision is in issue, structure the grounds around the elements that must be established.
4. Build a chronology
A chronology helps connect evidence with legal propositions. In a residency dispute it may include travel, accommodation and family circumstances. In a business deduction dispute it may include contract dates, invoices, payment and the commercial purpose of expenditure.
5. Use contemporaneous evidence
Contracts, bank records, tax invoices, board papers, correspondence, accounting records, valuations and third-party documents generally carry more weight than a later reconstruction unsupported by records. Identify gaps before lodging where possible.
6. Address unfavourable facts
A persuasive objection does not ignore inconvenient evidence. Explain it. If a document appears inconsistent with the taxpayer’s position, address the context and why the legal conclusion still follows.
7. Distinguish evidence from submission
Evidence proves facts; submissions explain the legal consequence. Keeping those roles distinct makes the objection easier to follow and reduces the risk of relying on argument where proof is required.
8. Prepare the file for possible external review
If the objection is disallowed, merits review or appeal rights may be available depending on the decision. A disciplined objection file—with indexed documents, chronology and clearly framed grounds—creates a much stronger starting point for the next stage.
9. Payment and recovery are separate issues
Lodging an objection does not necessarily suspend collection activity. Where tax debt and recovery are also live issues, they should be addressed separately rather than assumed to disappear because the substantive liability is disputed.
What to send your lawyer
- The assessment, amended assessment or objectionable decision
- ATO audit or review correspondence
- A one-page chronology
- Tax returns and relevant schedules
- Contracts and source documents relevant to the disputed item
- Any deadline already communicated by the ATO