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Fuel Excise Cut Could Fuel Inflation, Economist Warns

Published 15 September 2026
Fuel Excise Cut Could Fuel Inflation, Economist Warns

Another reduction in petrol and diesel taxes may ease pressure at the pump, but could add to broader inflation pressures as global energy costs remain elevated

A renewed cut to Australia's fuel excise could provide some short-term relief for households facing higher petrol and diesel prices, but independent economist Chris Richardson has warned that the measure may ultimately add to inflation. With the government keeping open the possibility of reinstating the fuel excise discount, Richardson argues that another reduction would not represent the most effective use of public money, particularly while global energy prices remain under pressure.

Richardson said rising fuel costs are already making Australian households poorer, while higher interest rates around the world are adding to the financial strain. In his view, providing another discount at petrol stations could help consumers in the immediate term, but it would not address the broader economic impact of higher energy costs. Instead, he warned that additional government support could continue to feed inflation elsewhere in the economy.

Rising energy costs remain a broader challenge

The debate comes as geopolitical tensions continue to affect global energy markets and concerns grow over declining oil reserves. Higher crude prices can flow through to petrol, diesel and other energy-related costs, increasing expenses for households as well as businesses.

Richardson acknowledged the political appeal of temporarily reducing fuel taxes, particularly when motorists are confronting noticeably higher prices at the pump. However, he questioned whether maintaining such support for an extended period would make economic sense.

He argued that a continuing fossil-fuel subsidy could become increasingly difficult to justify if elevated energy prices persist for a longer period. While a temporary reduction may provide visible relief to motorists, the underlying global supply and geopolitical pressures would remain.

Inflation could offset the benefit

The central concern is that cheaper fuel at the pump does not necessarily translate into lower inflation across the economy. If government support keeps demand and spending stronger while energy costs remain elevated elsewhere, some of the benefit to households could be offset by continued price pressures in other areas.

That creates a difficult policy balance for the government. Cutting fuel excise could offer immediate assistance to households struggling with higher living costs, but it could also make the broader inflation challenge more difficult if the support remains in place for too long.

Richardson's message is therefore relatively straightforward: higher global fuel prices are creating a genuine economic cost for Australian households, and simply shielding consumers from that increase may not make the underlying problem disappear. As geopolitical uncertainty continues, households and policymakers may instead have to prepare for the possibility that elevated energy costs persist.

 

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