Budget billions helps cashed-up state lead debt battle

Western Australia's mining industry helps push the state's budget into the black. (Alan Porritt/AAP PHOTOS)

The nation's wealthiest state is on track to remain an outlier on debt compared to other jurisdictions as it unveils another massive surplus.

Western Australian Treasurer Rita Saffioti's second state budget on Thursday delivered a $2.5 billion windfall for the current financial year, with a further $2.4 billion surplus projected for 2025-26.