The federal budget is delivering more for Western Australia than in the past decade but is unlikely to sway voter opinion, Labor state treasurer Ben Wyatt says.
Prime Minister Scott Morrison announced a $1.6 billion commitment for metropolitan and major regional road projects in WA before the budget was handed down on Tuesday.
But Mr Wyatt said a significant amount of the infrastructure spend would not come through until 2021/22.
"My general view on this budget is that it's unlikely to change votes," he told reporters on Wednesday.
"Australians have formed opinions on the current government that might be hard to dislodge.
"Whether a range of tax cuts or infrastructure spend that people regard as normal business of government is something that will change votes, obviously ultimately I'm not going to find out until election day."
Mr Wyatt said in preparing the state budget, he would update figures around economic growth, dwelling investment, retail assumptions and employment.
He said he expected to take a more conservative view than his federal counterpart.
"I think that there are some contradictions in his budget around wage growth and employment data and what he's expecting around income tax revenue," Mr Wyatt said.
