What Is FBT on a Company Car?
Fringe Benefits Tax (FBT) applies when a business provides an employee — including a director or business owner — with a benefit that isn't cash wages. A company car is the most common fringe benefit in Australia, and it comes with specific rules that catch many business owners by surprise.
FBT is paid by the employer, not the employee. The FBT year runs from 1 April to 31 March, and the rate is 47% — applied to the taxable value of the benefit. That's a steep number, which is why understanding how to calculate and manage it properly matters.
The Two Calculation Methods
The ATO allows two methods for calculating the FBT value of a car benefit. You can choose whichever results in a lower liability, and you can switch methods each FBT year.
1. Statutory Formula Method
This is the simpler method. The taxable value is 20% of the car's base value (the cost to the employer, including GST and dealer delivery but excluding registration, stamp duty, and CTP insurance).
Formula: Taxable Value = Base Value × 20% × (Days Available / 365)
The statutory rate is 20% regardless of how much — or how little — the car is actually driven. That's the catch: a car sitting in your garage most of the time still generates FBT under this method.
2. Operating Cost Method
This method bases the taxable value on the actual operating costs of the car, multiplied by the percentage of private use. It requires a logbook covering at least 12 continuous weeks, and the logbook must be renewed every five years (or earlier if your travel patterns change significantly).
Formula: Taxable Value = Total Operating Costs × Private Use %
If your car is used predominantly for business — say 80% or more — the operating cost method typically produces a lower FBT liability than the statutory formula. It takes more record-keeping but the savings can be substantial.
Use the FBT Car Calculator to compare both methods with your actual figures before committing to one for the year.
What Counts as 'Private Use'?
Private use includes any travel that isn't in the course of earning income — including:
- Commuting between home and work (this one surprises people)
- Weekends and holidays
- Personal errands
- Time the car is parked at an employee's home overnight
Commuting is the biggest issue for most business owners. The ATO treats the trip from your house to your workplace as private use, not business travel. The exception is if you have a home office that genuinely qualifies as your primary place of business, or if you carry bulky equipment that makes taking a work vehicle necessary.