A plain-English guide to what Australians may be able to claim at tax time, what usually fails, and why records, reimbursements and private use matter.
Last reviewed: 22 March 2026
This page is a simple hub for the broad rules readers keep bumping into across the occupation guides.
It is designed to reduce obvious tax-time mistakes before someone jumps into a more specific occupation page.
How to use this page: Use it as a broad overview, then move into the closest occupation guide and the relevant support pages before treating any deduction as settled for your own situation.
Quick answer / overview
- A cost is more likely to be deductible when it directly relates to earning income, you paid for it yourself and you kept records.
- A cost is less likely to be deductible when it is private, reimbursed, only loosely connected to income or unsupported by evidence.
- The exact treatment still depends on the type of work, the expense itself and the current ATO guidance.
Common deductions people in this topic may be able to review
- Genuine work-related or business-related costs linked directly to earning income.
- Apportioned mixed-use costs where the income-producing share can be supported.
- Industry-specific costs where the expense matches the ATO rules for that occupation or activity.
- Business operating costs for genuine contractor or sole-trader activity.
For the core ATO-style claim tests behind these examples, see How to Claim Tax Deductions in Australia.
What is commonly not deductible
- Private or domestic spending.
- Reimbursed costs.
- Normal commuting in situations where the ATO does not allow it.
- Claims with no records or no clear connection to income.
Record-keeping requirements
- Keep receipts, invoices and supporting notes rather than relying on memory.
- Separate personal and business spending early.
- Document the method you used for apportionment if an item is mixed use.
- Review current ATO guidance before lodging if the claim sits in a grey area.
Use the record-keeping guide if you need the broader checklist behind these points.
Common mistakes
- Using industry myths or social media tips instead of checking the current ATO position.
- Claiming a cost because it feels work related, even though it is private or reimbursed.
- Forgetting that some rules change depending on whether you are an employee, contractor or business owner.
- Treating record keeping like an afterthought.
Frequently asked questions
What are the basic tests for a deduction?
The expense usually needs a direct connection to earning income, you generally need to have paid for it yourself, and you usually need records to support it.
Why do so many people get travel and clothing claims wrong?
Because those areas are easy to over-assume. A cost can feel work related in everyday life but still fail the ATO test.
Should I use this page instead of an occupation guide?
No. This page is a starting point. The occupation guides and official ATO source pages give the more specific context.
Related guides
Closest guides and hubs
- Record Keeping for Tax Deductions in Australia (2026 Guide)
- Employee vs Contractor Tax Deductions in Australia (2026 Guide)
- Tax Deductions for Tradies in Australia
- Tax Deductions for Small Business Owners in Australia
Support pages
- How to Claim Tax Deductions in Australia (2026 Guide)
- Record Keeping for Tax Deductions in Australia (2026 Guide)
- Employee vs Contractor Tax Deductions in Australia (2026 Guide)
- Editorial Policy
Review note, sources and disclaimer
Reviewed by: Australia Tax Deductions editorial team
Review date: 22 March 2026
Editorial note: This page is a practical overview page that points readers to more specific occupation guides, support pages and official ATO references. It is not personal tax advice.
Methodology: Read the Editorial Policy and Review Methodology pages for how this site checks and updates content.
Primary references
- ATO occupation and industry specific guides
- ATO claiming deductions 2025 instructions
- ATO tradies – be certain about what you can claim
- ATO business deductions
General educational information only. Tax outcomes depend on your circumstances, records, business structure and the current ATO rules. Check the latest official guidance or speak with a registered tax professional before acting on any deduction claim.