The Road User Charge (RUC) applies to each litre of fuel, such as diesel, used by heavy vehicles such as buses, coaches and trucks on public roads.
Ministers agreed to an annual 6 per cent increase to heavy vehicle charges each year between 2023-24 and 2025-26. The current RUC is 32.4 cents per litre.
On 30 March 2026, the Australian Government announced it will defer the next scheduled increase in the Heavy Vehicle Road User Charge to 1 January 2027, in response to rising fuel prices.