Light vehicle exclusion cuts credits for on-road use. Section 41-20 denies credits for fuel used in a vehicle of 4.5 tonnes gross vehicle mass or less travelling on a public road. This applies even if the vehicle is used for business purposes. Only heavy vehicles (above 4.5 tonnes) qualify for credits on public road use, and those credits are reduced by the road user charge under section 43-10. In Linfox Australia v Commissioner [2019] FCAFC 131, the Full Court confirmed that toll roads on which access is controlled by contracts but the general public can use them are still public roads for this purpose.
Road user charge reduces credits for heavy vehicle on-road use. The road user charge under section 43-10 is subtracted from the effective fuel tax to produce a lower credit rate for fuel used in heavy vehicles on public roads. This is the mechanism by which heavy vehicle operators contribute to road costs. The road user charge is periodically updated by legislative instrument.
Aircraft fuel is always excluded. Section 41-30 denies any credit for fuel acquired, manufactured, or imported for use as fuel in aircraft if the fuel was entered for home consumption for that use. Even if the aircraft is used entirely for business purposes, no credit is available.
Environmental criteria for vehicles (section 41-25). Credits are only available for fuel used in motor vehicles that meet specified environmental standards: manufactured on or after 1 January 1996, registered in an accredited audited maintenance program, or meeting prescribed Australian vehicle standards. Off-road vehicles used primarily in primary production are exempt from this requirement.
Adjustment required when fuel is lost or stolen. Section 44-10 requires an increasing fuel tax adjustment when fuel on which a credit was received is lost, stolen, or otherwise becomes unusable without a prospect of recovery. This can create unexpected liabilities.
Period of review time limit. Section 47-5 means that a credit not claimed, or not included in an assessment, within the period of review is lost. In Linfox [2019] FCAFC 131, the Full Court confirmed that the clock runs from when the deemed assessment is made (upon lodgement of the BAS), not from when the fuel was acquired.