FBT Car Calculator

Calculate Fringe Benefits Tax on a company car using the statutory formula or operating cost method.

$

Original purchase price including GST and dealer delivery

km

FBT year runs 1 April to 31 March

km

Kilometres driven for business purposes

Days the car was available for private use in the FBT year

$

After-tax amount employee contributes towards car costs

Statutory is simpler. Operating cost requires a logbook.

How It Works

Statutory method: 20% x car cost x (days available / days in year) - employee contribution. Operating cost method: total running costs x private use percentage. Both results are then grossed up and taxed at the FBT rate of 47%.

Frequently Asked Questions

What is the FBT statutory fraction?

The statutory fraction is a flat 20% regardless of kilometres driven (since 2014). The taxable value is 20% x car's cost price x (days available / 365) minus any employee contribution.

When is the FBT year?

The FBT year runs from 1 April to 31 March — it is different from the financial year. FBT returns are due by 21 May (or later if lodged through a tax agent).

What is the FBT rate?

The FBT rate for 2024-25 is 47%. This is applied to the grossed-up taxable value. The type 1 gross-up rate (where GST credits are claimed) is 2.0802, and type 2 (no GST credits) is 1.8868.

Which FBT method is better for cars?

If you do high business kilometres (over 70-80%), the operating cost method usually gives a lower FBT liability. If mostly private use, the statutory method may be similar or simpler. You need a valid 12-week logbook for the operating cost method.