On the morning after Treasurer Scott Morrison delivered the budget in Canberra, Mr Coulton was talking about tax relief "freeing up cash" in businesses including farms and a four-year $840 million youth employment package that would help address anti-social and self-destructive behaviour in his "patch" of NSW.

But enthusiasm for the budget from the man whose electorate covered about 50 per cent of the state was not shared by candidates for the seat of Parkes at the election tipped for July 2, Labor's Kate Stewart and the Greens' Matt Parmeter.

On Wednesday Ms Stewart raised concerns about "lack of investment in Gonski" and Medicare changes "effectively cutting funding to pathology (and) x-ray services, to pap smears".

Mr Parmeter said the budget had shown the government was "not serious" about climate change or renewable energy and the jobs it could create in the region.

He also questioned whether a $6-a-week tax cut for people with incomes in excess of $80,000 was relevant in Western NSW.

In brief interviews with the Daily Liberal, Mr Coulton, Ms Stewart and Mr Parmeter found common ground when it came to the planned inland rail network connecting Brisbane to Melbourne.

Individually they welcomed the government's $594 million commitment to purchasing its land "corridor".

Mr Coulton said the funding to progress the inland rail was the "standout" feature of the budget for him.

But he was rapt businesses with a turnover up to $10 million would pay a reduced company tax rate of 27.5 per cent.

"Changing the small business category from $1 million to $10 million will actually affect a lot of businesses in my patch," he said.

"Freeing up cash will allow them to spend locally on things like equipment, and invest in their future."

Mr Coulton said the youth employment package would subsidise businesses to train and mentor young people paid the Newstart allowance.

"Ultimately, we would like to think that kick-starts someone into getting a permanent job," he said.

"I'm convinced that a lot of the issues we deal with in the west, whether it is domestic violence, drugs or crime, would not be a problem if people got permanent jobs."

Ms Stewart zeroed in on the budget's $1.2 billion in extra funding for schools across three years from 2018.

Significantly less than Labor's promised $4.5 million, she bemoaned the impact on Parkes electorate schools that had been "underfunded at state and federal levels for decades".

Ms Stewart said Gonski funding above and beyond that for other federal electorates in NSW would have lifted schools in Parkes to "minimum resourcing requirements".

"The $1.2 billion, spread right across the entire country, that's not going to bring Parkes up to minimum resourcing requirements," she said.

"That alone tells me that the federal government, the National Party, has not told the Liberal Party that the children of Parkes are worth as much as the children in other electorates in NSW."

Ms Stewart said Medicare changes would be an impost on Western NSW residents.

"A significant portion of the electorate still has to travel quite a distance to meet health care needs, to undertake diagnostic testing, and now they will have to pay more," she said.

Mr Parmeter said $1.3 billion was being cut from the Australian Renewable Energy Agency that funded activities expected to advance renewable energy technologies towards commercial readiness.

"That will have an effect on the Parkes electorate," Mr Parmeter said.

"What Australia needs to be doing is transitioning to a renewable energy economy and minimising the effect of climate change.

"As the energy system transforms, we're going to get jobs out of it, but there's nothing in the budget for that."

Mr Parmeter said " a lot of people" in the region did not earn $80,000 a year and would not benefit from the budget's lifting of the middle -income tax threshold.

Mr Coulton said Tuesday's budget may set up a visit by Prime Minister Malcolm Turnbull to Governor-General Sir Peter Cosgrove as early as "Friday or Saturday".

Mr Coulton's "educated guess" is this year's federal election will be held on July 2.