On 24 April 2026, across Australia, sole traders and small business owners are actively claiming tax deductions for business vehicles. Understanding the available methods and limits is essential to maximizing your legitimate deductions while staying compliant with ATO requirements.
Sole Trader Car Tax Write-Off Options 2026
The ATO provides three main methods for claiming vehicle deductions as a sole trader:
- Instant asset write-off: Up to AUD 26,000 for eligible vehicles
- Logbook method: Claim a percentage of all vehicle expenses
- Cents per kilometre: Simple method with fixed rate per km
Instant Asset Write-Off
The instant asset write-off allows sole traders to immediately deduct the full cost of eligible assets, including vehicles, up to the threshold. For 2025-26:
- Threshold: AUD 26,000 per asset
- Eligibility: Must have an ABN and be a sole trader, partnership, or trust
- Vehicle requirement: Must be used for business purposes more than 50% of the time
For vehicles purchased under AUD 26,000, you can claim the full amount in the year of purchase. For vehicles above this threshold, only the AUD 26,000 can be claimed immediately, with the remainder depreciated over time.
Logbook Method
The logbook method provides a more comprehensive deduction for high-use business vehicles:
- Process: Keep a 12-week logbook recording all business and personal journeys
- Calculation: Business percentage multiplied by total vehicle expenses
- Expenses covered: Fuel, maintenance, registration, insurance, depreciation
- Logbook update: Must be renewed every 5 years or when usage changes significantly
This method is most beneficial for vehicles with high business use (above 50%) and significant running costs.
Cents Per Kilometre Method
The simplest method for claiming vehicle deductions:
- Rate: 78 cents per kilometre for 2025-26
- Maximum: 5,000 kilometres per year
- Maximum deduction: AUD 3,900 per year
- Records: Need to estimate total business kilometres, no logbook required
This method suits sole traders with lower business vehicle usage who prefer not to maintain detailed records.
Which Method Is Best for You?
Choosing the right method depends on your specific situation:
- New vehicle under AUD 26,000: Instant asset write-off is best
- High business use (above 60%): Logbook method typically provides highest deduction
- Low business use: Cents per km method is simplest
- Mixed usage: Compare all three methods before lodgement
ATO Record-Keeping Requirements
Regardless of the method you choose, the ATO requires:
- Records kept for 5 years from lodgement
- Receipts for all vehicle purchases and expenses
- Logbook entries for the 12-week period (if using logbook method)
- Documentation showing business use percentage
Summary
Sole traders have three options for claiming car tax write-offs in 2026: instant asset write-off up to AUD 26,000, logbook method for comprehensive deductions, and cents per km at 78 cents for up to 5,000km annually. Choose the method that best fits your vehicle usage patterns and record-keeping preferences.