As expected, the Government will spend big on infrastructure with an $8.4 billion investment in the inland freight railway, which will connect Brisbane to Melbourne.

The Government will establish the Western Sydney Airport Corporation, injecting $5.3 billion in equity into the company over a 10-year period.

The Government expects the airport to be delivered in 2026, creating an estimated 20,000 jobs by the early 2030s.

The infrastructure spend is framed as an "investment", so does not sit on the budget balance sheets.

There have already been questions raised about whether projects such as inland rail will deliver a return on the significant investment.