Sussan Ley will promise Australians income tax cuts as she battles to keep a divided Coalition focused on scrutinising Labor.

The Opposition Leader will double down on her commitment to restoring fiscal discipline as a way to tackle unfairness between generations in a second major speech focused on the economy.

The Coalition is working on a tax cut plan for low and middle-income earners to take to the next election, Ms Ley will tell the Centre for Independent Studies on Monday.

But the details won’t be revealed until closer to the 2028 election.

“I have never been more convinced, more determined and more passionate about anything I have ever done in public life than I am today in making this pledge to the Australian people,” Ms Ley will say, according to extracts of her speech.

“Eve

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