Fringe Benefits Tax on Company Cars: A Plain-English Guide for Small Fleets
Fringe Benefits Tax catches a lot of small and growing fleets off guard, mostly because it's easy to assume it only applies to large corporates with executive car packages. In reality, it applies any time an employer makes a vehicle available for an employee's private use - including something as simple as letting a ute go home with a driver overnight.
What actually triggers it
FBT applies when a car is available for private use - driving to and from home, weekend errands, holidays - not just when it's actually used privately. "Available" is the operative word: a car garaged at an employee's home overnight is generally considered available for private use even on a day it wasn't driven privately. Genuine business use - travelling between job sites, to a client, or between two workplaces - doesn't trigger FBT on its own.
How it's calculated: two methods
The statutory formula method is the simpler of the two: 20% of the car's base value (broadly, purchase price including GST, before rego and stamp duty), pro-rated for the number of days it was available for private use in the FBT year. It requires no logbook.
The operating cost method can produce a much lower taxable value where private use is genuinely low, but it requires solid records: a valid logbook establishing the business-use percentage, plus actual running costs for the year (fuel, servicing, insurance, registration, interest, depreciation). Without a logbook and odometer records, you're required to fall back to the statutory formula method - which is often the more expensive outcome.
The tax itself
FBT is paid by the employer, at a flat 47% on the taxable value calculated above - separate from, and in addition to, income tax. The FBT year runs 1 April to 31 March, with returns due by 21 May.
What actually reduces the bill
A few things move the needle: genuinely restricting and documenting private use, having employees make after-tax contributions toward running costs (which directly reduce the taxable value), and - for fleets that can substantiate it - using the operating cost method with a proper logbook where private use is low. Utes and vans with only limited, incidental private use can also qualify for a specific exemption, which is worth checking vehicle-by-vehicle rather than assuming it applies fleet-wide.
Why the logbook is the whole ballgame
The operating cost method only pays off if you can prove the business-use percentage - and that proof is a compliant logbook plus odometer records, not an estimate at year-end. Fleets that don't keep this data by default end up defaulting to the statutory formula method every year, even in years where their actual private use was low enough to justify a much smaller FBT bill.
Where Odomly fits in
Odomly captures logbook-quality trip data - business vs. private, odometer-verified - for every vehicle and driver by default, not as a once-a-year exercise. That means the operating cost method is actually available as a genuine option each FBT year, rather than a theoretical one nobody has the records to use.
This article is general information, not tax advice. FBT calculations depend on your specific fleet and arrangements - speak with a registered tax agent or your accountant before lodging.