ATO Crackdown On Log Book Deductions
The Australian Taxation Office (ATO) is increasing scrutiny on work-related car expense claims for the 2025–26 financial year, focusing heavily on invalid logbooks and overestimated business use.
With over $7.2 billion in car expenses claimed annually, the ATO is utilizing data analytics to identify taxpayers who may be inflating their claims, often comparing claims against others in similar occupations
Key Focus Areas of the Crackdown
- Invalid Logbooks: The ATO is scrutinizing 12-week logbooks that lack detailed information (e.g., just saying “business trip” without a specific purpose).
- Odometer Discrepancies: Logbooks must include opening and closing odometer readings for the year, not just for the 12-week period.
- “Double Dipping”: Claiming for expenses that were reimbursed by an employer is a major focus.
- Private Travel: Commuting between home and work is generally not deductible, even if minor work tasks are performed, or if the employee is using their car for comfort or to transport bulky, light equipment.
- Unsupported 5,000 km Claims: Using the “cents per kilometre” method for the maximum of 5,000 km requires proof that you actually travelled that distance for work.
How the ATO finds Errors
- Data Matching: The ATO uses external data, such as eTags and traffic cameras, to cross-check against recorded logbook trips.
- Benchmarking: Analytics compare claims against taxpayers with similar incomes and occupations.
- Detailed Reviews: Taxpayers may be asked to provide their logbooks and, in cases of suspected fraud, the ATO has reviewed records to find that claimed work travel was impossible or fictitious.
Consequences of Improper Claims
If a logbook is found to be invalid, the ATO can disallow the entire claim, not just the part deemed unreasonable. This can result in:
- Back-payment of tax for up to four years.
- Significant penalties and interest charges.
- An $80k tax penalty could arise from a $10,000, 4-year error
How to Stay Compliant
- Maintain Records: If you use the logbook method, keep records of all actual expenses (fuel, oil, maintenance, registration, insurance, and financing).
- Use Digital Tools: The ATO’s myDeductions tool in the app is highly recommended for tracking.
- 12-Week Rule: A logbook must be kept for a minimum of 12 continuous weeks and represent the pattern of use for the whole year.
- Logbook Life: A valid logbook is generally valid for 5 years.
New Job/Vehicle: A new logbook must be prepared if you change jobs or your vehicle’s usage pattern changes significantly.
