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Australian treasurer warns Iran war is economic disaster, bond yields to cost billions

Australia's treasurer calls the Iran war an economic disaster, citing higher inflation, rising bond yields and billions in added debt costs.

04/10/2026 23:0113 min read

The treasurer's comments about debt servicing costs draw attention to the worldwide increase in bond yields, which is now having a direct effect on government budget calculations. This keeps fiscal supply and credit issues in focus for Australian government bonds ahead of the mid-year review. His emphasis on energy-driven inflation strengthens the argument that oil is the primary route through which the Iran conflict affects the Australian economy. Any sustained interruption to Gulf supply maintains upward pressure on both prices and the Reserve Bank of Australia. The Japan trip, centered on fuel security, also underscores how energy-importing economies in Asia are working together on their response to the oil price shock.

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Australia's treasurer has stated that the Iran war represents an economic disaster, with the impact arriving via petrol prices, interest rates and the expense of the country's debt.

Summary:

  • Treasurer Jim Chalmers referred to the US-Iran war as an economic disaster, attributing to it higher global inflation and interest rates.
  • He expressed that an end to the war would be welcome, while stopping short of offering advice to President Trump.
  • Following the RBA raising rates to a 15-year peak, Chalmers stated that budget settings are not the primary driver of prices.
  • A savings package is expected in the mid-year budget update, but rising bond yields will increase debt servicing costs by billions.
  • He does not foresee a recession, but noted the war is affecting global growth. He is also headed to Japan for a meeting with Finance Minister Satsuki Katayama.

Australian Treasurer Jim Chalmers has characterized the US war with Iran as an economic disaster, according to Bloomberg (gated). He attributed the conflict to pushing up inflation and borrowing costs worldwide and cautioned that it is also taking a toll on global expansion.

Speaking on ABC television on Sunday, Chalmers stated that regardless of the war's justifications, its economic fallout had been catastrophic for living costs in Australia and across the world. He noted that the conflict was exerting significant upward pressure on inflation, which explained why interest rates were climbing globally. When asked if President Donald Trump should halt the war, Chalmers avoided giving advice but remarked that its conclusion would be timely. He cautioned that a longer duration would increase harm to both the global and Australian economies.

The treasurer was also questioned on whether government expenditure had played a role in inflation remaining above target. The Reserve Bank of Australia has increased interest rates to a 15-year high, pointing to both conflict-related energy costs and domestic capacity strains. Chalmers countered that spending growth had decelerated and that budget settings were not the principal cause of price increases.

He indicated that a savings package would be part of the mid-year budget update, but warned that increasing global bond yields would add billions of dollars to the expense of servicing public debt. He noted that budget pressures in Australia and elsewhere were becoming more severe, and it was uncertain how the savings would balance against higher borrowing expenses.

Chalmers stated that he did not anticipate a recession in Australia but recognized that the war was affecting global growth and that the country was not shielded from it.

He also revealed intentions to travel to Japan to meet with Finance Minister Satsuki Katayama, along with business executives and investors. He mentioned that both nations confronted similar strains from elevated energy prices and bond yields, and that the trip would emphasize investment, fuel security and strengthened ties.

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