As the end of the financial year approaches, the Australian Taxation Office (ATO) is reminding taxpayers and advisers that now is the perfect time to review vehicle logbooks to ensure they remain valid and compliant.
At Roy A McDonald Pty Ltd Accountants Doncaster, we’re encouraging clients to take this opportunity to avoid common mistakes and ensure their work-related car expense claims stand up to ATO scrutiny.
Why Your Logbook Matters
If you use your vehicle for work purposes and claim deductions using the logbook method, your logbook is one of the most important records you maintain. It provides the evidence required to support your claim and determines the percentage of your car expenses that can be deducted.
Without a valid and up-to-date logbook, your claim may be reduced—or even denied—by the ATO.
The 5-Year Rule – With a Catch
Many taxpayers believe a logbook automatically lasts for five years. While this is generally true, the ATO has highlighted that this only applies if your travel patterns remain consistent.
According to recent ATO guidance, logbooks don’t always last the full five years. If your circumstances change, your existing logbook may no longer be valid.
When You Need a New Logbook
You should consider starting a new logbook if there has been a significant change in your work or travel patterns, such as:
- Changing jobs or roles
- Moving home or relocating your workplace
- Buying or changing vehicles
- A noticeable shift in how often or how far you travel for work
In these situations, your previous logbook may no longer accurately reflect your business use, putting your claim at risk.
What Makes a Logbook Valid?
To meet ATO requirements, your logbook must:
- Cover a continuous 12-week period representative of your normal travel
- Record details of each trip, including date, purpose, distance, and odometer readings
- Accurately reflect your work-related usage
This 12-week period is then used to calculate your business-use percentage for the year.
Common Mistakes to Avoid
The ATO continues to focus on work-related expense claims, particularly car expenses. Some common issues include:
- Using an outdated or unrepresentative logbook
- Failing to record all trips accurately
- Estimating rather than documenting travel
- Not keeping supporting receipts for expenses
With increased data matching and audit activity, maintaining accurate records is more important than ever.
A Simple Check Can Save You Time and Money
A quick review of your logbook before 30 June can help ensure:
- Your claims are accurate and compliant
- You maximise your eligible deductions
- You reduce the risk of ATO adjustments or penalties
If your logbook is no longer valid, starting a new one now can position you well for the next financial year.
How We Can Help
At Roy A McDonald Pty Ltd Accountants Doncaster, we work closely with our clients to ensure their tax records meet ATO requirements and their deductions are fully optimised.
If you’re unsure whether your logbook is still valid—or need guidance on maintaining proper records—our team is here to help.
Contact us today to review your tax position and stay ahead this tax time.
Source: ato.gov.au
